CN109474046B - Discharge control circuit, mobile power supply and power adapter - Google Patents
Discharge control circuit, mobile power supply and power adapter Download PDFInfo
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- CN109474046B CN109474046B CN201811628194.4A CN201811628194A CN109474046B CN 109474046 B CN109474046 B CN 109474046B CN 201811628194 A CN201811628194 A CN 201811628194A CN 109474046 B CN109474046 B CN 109474046B
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 121
- 238000001514 detection method Methods 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 10
- 238000012790 confirmation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
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Abstract
The invention is suitable for the technical field of electronics, and provides a discharge control circuit, a mobile power supply and a power adapter, wherein the discharge control circuit comprises: the voltage output unit group, the voltage conversion unit group and the control unit are connected with the voltage output unit group, so that the control unit can detect the connection state of each voltage output unit in the voltage output unit group and the equipment to be charged, and further when detecting that the voltage output unit is connected with the equipment to be charged, the voltage conversion unit corresponding to the voltage output unit outputs a corresponding control signal, and according to the control signal, the voltage conversion unit controls the power of the charging direct current output by the voltage output unit group to be equal to the preset maximum output power, so that the maximum output power can be achieved when the equipment to be charged is charged, and the charging efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of electronics, and particularly relates to a discharge control circuit, a mobile power supply and a power adapter.
Background
Nowadays, a mobile terminal is one of the indispensable tools in daily life and work of people, but the electric quantity endurance of the mobile terminal is limited, so that a plurality of portable mobile power sources are available on the market, and the mobile power sources can charge equipment to be charged, such as the mobile terminal.
In the existing USB fast charging transmission protocol (USB Power Delivery, USB-PD), if multiple charging output ports are to be set, the power of each charging output port must be allocated in advance, so that when the device to be charged is charged, the mobile power supply cannot reach the maximum output power, and the charging efficiency is low.
Disclosure of Invention
The embodiment of the invention provides a discharge control circuit and a mobile power supply, which can achieve maximum output power and improve charging efficiency when equipment to be charged is charged.
The invention aims to provide a discharge control circuit which is connected with a power supply and comprises:
The voltage output unit group comprises at least two voltage output units, and the voltage output units are used for being connected with equipment to be charged;
The voltage conversion unit group comprises at least two voltage conversion units which are connected with the voltage output units in a one-to-one correspondence manner, and is used for converting the output voltage of the power supply and determining charging direct current output by the voltage output unit group according to a control signal, wherein the power of the charging direct current is equal to the preset maximum output power;
And the control unit is respectively connected with each voltage output unit and each voltage conversion unit and is used for outputting the control signal to the voltage conversion unit corresponding to the voltage output unit when the voltage output unit is detected to be connected with the equipment to be charged.
Another object of the present invention is to provide a portable power source, including a power source, and further including a discharge control circuit as described above.
It is still another object of the present invention to provide a power adapter for connecting a power source to charge a device to be charged, the power adapter including the discharge control circuit as described above.
The invention provides a discharge control circuit, a mobile power supply and a power adapter, wherein the discharge control circuit comprises: the voltage output unit group, the voltage conversion unit group and the control unit are connected with the voltage output unit group, so that the control unit can detect the connection state of each voltage output unit in the voltage output unit group and the equipment to be charged, and further when detecting that the voltage output unit is connected with the equipment to be charged, the voltage conversion unit corresponding to the voltage output unit outputs a corresponding control signal, and according to the control signal, the voltage conversion unit controls the power of the charging direct current output by the voltage output unit group to be equal to the preset maximum output power, so that the maximum output power can be achieved when the equipment to be charged is charged, and the charging efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a discharge control circuit according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a specific structure of a discharge control circuit according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a discharge control circuit according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a mobile power supply according to an embodiment of the present invention;
Fig. 5 is a schematic structural diagram of a power adapter according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a discharge control circuit according to an embodiment of the present invention, and for convenience of explanation, only a portion related to the embodiment of the present invention is shown.
In this embodiment, the discharge control circuit is applied to a mobile power supply or a power adapter, in which a battery cell is built in the mobile power supply, and a connection terminal for connecting the power supply is provided on the power adapter.
As shown in fig. 1, a discharge control circuit 100 includes: a voltage output unit group 10, a voltage conversion unit group 20, and a control unit 30. Specifically:
the voltage output unit group 10 includes at least two voltage output units 11, and the voltage output units 11 are used for connecting the device 120 to be charged.
The voltage conversion unit group 20 includes at least two voltage conversion units 21 connected to the voltage output units 11 in a one-to-one correspondence, and the voltage conversion units 21 are configured to convert an output voltage of the power supply 110, and determine a charging direct current output through the voltage output unit group 10 according to a control signal, where a power of the charging direct current is equal to a preset maximum output power.
And a control unit 30 connected to each of the voltage output units 11 and each of the voltage conversion units 21, respectively, for outputting a control signal to the voltage conversion unit 21 corresponding to the voltage output unit 11 when it is detected that the voltage output unit 11 is connected to the device 120 to be charged.
In all embodiments of the application, the set of voltage output units 10 comprises at least two voltage output units 11, each voltage output unit 11 being a USB socket arranged in compliance with the USB-PD protocol. The voltage converting units 21 in the voltage converting unit group 20 may be AC-DC voltage converting units, i.e. AC-DC voltage converting units, or the voltage converting units 21 may also be DC voltage converting units, i.e. DC-DC voltage converting units.
In practical application, in order to meet the charging requirements of different devices to be charged, different charging protocol standards or charging strategies may be preconfigured in the control unit 30, and when detecting that the voltage output unit group 10 is connected to the device to be charged 120, the control unit 30 performs a protocol handshake with the device to be charged 120, and further outputs a control signal to the voltage conversion unit 21 corresponding to the voltage output unit 11 connected to the device to be charged 120, so as to control the voltage conversion unit 21 to convert the output voltage of the power supply 110.
It should be noted that, since the voltage output units 11 are used to connect the to-be-charged devices 120, and the control unit 30 is connected to each of the voltage output units 11 and each of the voltage conversion units 21, respectively, the control unit 30 is able to detect the connection state of each of the voltage output units 11 and the to-be-charged devices 120, and then output a control signal to each of the voltage conversion units 21 based on the connection state.
For example, when only one voltage output unit 11 of the voltage output unit group 10 is connected to the device to be charged 120, the control unit 30 outputs a control signal to the voltage output unit 11 connected to the device to be charged 120, the corresponding voltage conversion unit 21, so that the power of the charging direct current outputted by the voltage output unit 11 connected to the device to be charged 120 is equal to the preset maximum output power.
For another example, when more than one voltage output unit 11 of the voltage output unit group 10 is connected to the device to be charged 120, the control unit 30 outputs control signals to the voltage output units 11 connected to the device to be charged 120, respectively, corresponding voltage conversion units 21 such that the total power of all the charged direct currents output by the voltage output units 11 connected to the device to be charged 120 is equal to the preset maximum output power.
In this embodiment, since the voltage conversion units 21 are connected to the voltage output units 11 in a one-to-one correspondence manner, the voltage conversion units 21 can determine the corresponding output power according to the control signal, that is, determine that the power of the charging direct current output by the voltage output unit group 10 is equal to the preset maximum output power, so that whether the voltage output unit group 10 is connected to only one device to be charged or two or more devices to be charged, the device to be charged can be charged with the maximum output power, thereby improving the charging efficiency.
It is understood that when the control unit 30 detects that no voltage output unit 11 of the voltage output unit group 10 is connected to the device 120 to be charged, the control unit 30 does not need to output a control signal to the voltage conversion unit 21.
The embodiment provides a discharge control circuit, portable power source and power adapter, wherein, a discharge control circuit includes: the voltage output unit group, the voltage conversion unit group and the control unit are connected with the voltage output unit group, so that the control unit can detect the connection state of each voltage output unit in the voltage output unit group and the equipment to be charged, and further when detecting that the voltage output unit is connected with the equipment to be charged, the voltage conversion unit corresponding to the voltage output unit outputs a corresponding control signal, and according to the control signal, the voltage conversion unit controls the power of the charging direct current output by the voltage output unit group to be equal to the preset maximum output power, so that the maximum output power can be achieved when the equipment to be charged is charged, and the charging efficiency is improved.
Referring to fig. 2, fig. 2 is a schematic diagram showing a specific structure of a discharge control circuit according to an embodiment of the present invention.
As shown in fig. 2, as a possible implementation manner of this embodiment, the detected end 111 of the voltage output unit 11 is connected to the detecting end 31 of the control unit 30.
The control unit 30 is specifically configured to, when detecting that the voltage output unit 11 is connected to the device to be charged 120 through the detection terminal 31, perform a protocol handshake with the device to be charged 120 through the voltage output unit 11, and output a control signal to the voltage conversion unit 21.
As shown in fig. 2, as a possible implementation manner of this embodiment, the input terminal 211 of the voltage conversion unit 21 is connected to the power supply 110, the controlled terminal 212 of the voltage conversion unit 21 is connected to the control terminal 32 of the control unit 30, and the output terminal 213 of the voltage conversion unit 21 is connected to the input terminal 112 of the voltage output unit 11.
In the present embodiment, the detection terminal 31 of the control unit 30 is connected to the detected terminal 111 of the voltage output unit 11, so that the control unit 30 can detect the connection state of the voltage output unit 11 and the device to be charged 120, and when the control unit 30 detects that the voltage output unit 11 is connected to the device to be charged 120 through the detection terminal 31, the control unit 30 performs a protocol handshake with the device to be charged 120 through the voltage output unit 11.
In all embodiments of the present application, the control unit 30 performs a protocol handshake with the device to be charged 120 through the voltage output unit 11, specifically, the control unit 30 sends a handshake request signal to the device to be charged 120 through the voltage output unit 11, and the device to be charged 120 returns a corresponding handshake signal according to the handshake request signal, where the handshake signal carries charging protocol information of the device to be charged 120, and the charging protocol information is used to indicate at least one of a charging voltage value, a charging current value and a charging power value of the device to be charged 120. The control unit 30 performs handshake confirmation according to the handshake signal and sends a handshake confirmation signal to the device 120 to be charged, thereby completing protocol handshake, and simultaneously outputs a control signal to the voltage conversion unit 21.
It will be appreciated that the control signal is used to control the voltage conversion unit 21 to convert the output voltage of the power supply 110 according to the charging protocol information of the device to be charged 120.
Fig. 3 shows a specific circuit schematic diagram of a discharge control circuit according to an embodiment of the present invention.
In the present embodiment, the voltage output unit 11 is a voltage output port, and the voltage conversion unit 21 is a voltage conversion chip. As shown in fig. 3, the voltage output unit set 10 includes a first voltage output port 12 and a second voltage output port 13, and the voltage conversion unit set 20 includes a first voltage conversion chip U1 and a second voltage conversion chip U2.
The detected terminal 121 of the first voltage output port 12 is connected to the first detection terminal 311 of the control unit 30.
The detected end 131 of the second voltage output port 13 is connected to the second detection end 312 of the control unit 30.
The input terminal IN1 of the first voltage conversion chip U1 is connected to the power supply 110, the controlled terminal CL1 of the first voltage conversion chip U1 is connected to the first control terminal 321 of the control unit 30, and the output terminal OUT1 of the first voltage conversion chip U1 is connected to the input terminal 122 of the first voltage output port 12.
The input terminal IN2 of the second voltage conversion chip U2 is connected to the power supply 110, the controlled terminal CL2 of the second voltage conversion chip U2 is connected to the second control terminal 322 of the control unit 30, and the output terminal OUT2 of the second voltage conversion chip U2 is connected to the input terminal 132 of the second voltage output port 13.
In this embodiment, the control unit 30 is specifically configured to, when only the connection between the first voltage output port 12 and the device to be charged 120 is detected, perform a protocol handshake with the device to be charged 120 through the first voltage output port 12, and output a first control signal to the first voltage conversion chip U1.
The first voltage conversion chip U1 is configured to convert an output voltage of the power supply 110 according to a first control signal to obtain a first direct current, and output the first direct current through the first voltage output port 12 to charge the device to be charged 120 connected to the first voltage output port 12.
In this embodiment, when the control unit 30 detects that only the first voltage output port 12 is connected to the device to be charged 120, in order to improve the charging efficiency of charging the device to be charged 120, after performing a protocol handshake with the device to be charged 120, a control signal is output to the first voltage conversion chip U1 corresponding to the first voltage output port 12 connected to the device to be charged 120, so that the first voltage conversion chip U1 converts the output voltage of the power supply 110 according to the control signal, and further obtains a first direct current with a power equal to a preset maximum output power, and charges the device to be charged 120 with the first direct current through the first voltage output port 12.
Further, based on the above possible implementation manner, the control unit 30 is specifically further configured to, after outputting the first control signal, send a power-off control signal to the first voltage conversion chip U1 when detecting that the second voltage output port 13 is connected to the to-be-charged device 120, respectively perform protocol handshaking with the to-be-charged device 120 through the first voltage output port 12 and the second voltage output port 13, output the second control signal to the first voltage conversion chip U1, and output the third control signal to the second voltage conversion chip U2.
The first voltage conversion chip U1 is specifically configured to disconnect the charging of the device to be charged 120 according to the power-off control signal, convert the output voltage of the power supply 110 according to the second control signal to obtain a second direct current, and output the second direct current through the first voltage output port 12 to charge the device to be charged 120 connected to the first voltage output port 12.
The second voltage conversion chip U2 is specifically configured to convert the output voltage of the power supply 110 according to the third control signal to obtain a third direct current, and output the third direct current through the second voltage output port 13 to charge the device to be charged 120 connected to the second voltage output port 13.
In the present embodiment, when the control unit 30 detects that only the first voltage output port 12 is connected to the device 120 to be charged, a first control signal is output. After the control unit 30 outputs the first control signal, that is, after the first voltage output port 12 is connected to the device 120 to be charged, if the control unit 30 detects that the second voltage output port 13 is connected to the device 120 to be charged, the power-off control signal is sent to the first voltage conversion chip U1, and the first voltage conversion chip U disconnects charging of the device 120 to be charged according to the power-off control signal. The control unit 30 performs protocol handshaking with the device 120 to be charged through the first voltage output port 12 and the second voltage output port 13, and outputs a second control signal to the first voltage conversion chip U1 and a third control signal to the second voltage conversion chip U2. The first voltage conversion chip U1 converts the output voltage of the power supply 110 according to the second control signal to obtain a second direct current, and outputs the second direct current to charge the device to be charged 120 through the first voltage output port 12. The second voltage conversion chip U2 converts the output voltage of the power supply 110 according to the third control signal to obtain a third direct current, and outputs the third direct current to charge the device to be charged 120 through the second voltage output port 13. The to-be-charged device 120 connected to the first voltage output port 12 and the to-be-charged device 120 connected to the second voltage output port 13 are two different to-be-charged devices, and the sum of the power of the second direct current and the power of the third direct current is equal to the preset maximum output power.
As a possible implementation manner of this embodiment, the control unit 30 is specifically further configured to, after outputting the second control signal and the third control signal, send a power-off control signal to the first voltage conversion chip U1 and perform a protocol handshake with the device 120 to be charged through the second voltage output port 13, and output a fourth control signal to the second voltage conversion chip U2 when detecting that the first voltage output port 12 is not connected to the device 120 to be charged.
The second voltage conversion chip U2 is specifically further configured to convert the output voltage of the power supply 110 according to the fourth control signal to obtain a fourth direct current, and output the fourth direct current through the second voltage output port 13 to charge the device to be charged 120 connected to the second voltage output port 13.
In this embodiment, after outputting the second control signal and the third control signal, when detecting that the to-be-charged device 120 connected to the first voltage output port 12 is pulled out, the control unit 30 sends a power-off control signal to the first voltage conversion chip U1, controls the first voltage conversion chip U1 to stop supplying power to the first voltage output port 12, and performs a protocol handshake with the to-be-charged device 120 through the second voltage output port 13 again, and outputs a fourth control signal to the second voltage conversion chip U2 after the protocol handshake is completed.
It should be noted that, in order to improve the charging efficiency of the device to be charged 120, the control unit 30 performs a protocol handshake with the device to be charged 120 through the second voltage output port 13 again, outputs a fourth control signal to the second voltage conversion chip U2 corresponding to the second voltage output port 13 connected to the device to be charged 120, so that the second voltage conversion chip U2 converts the output voltage of the power supply 110 according to the fourth control signal, and further obtains a fourth direct current with a power equal to the preset maximum output power, and charges the device to be charged 120 with the fourth direct current through the second voltage output port 13.
As a possible implementation manner of this embodiment, the control unit 30 is specifically further configured to, when detecting that the first voltage output port 12 and the second voltage output port 13 are both connected to the device 120 to be charged, respectively perform protocol handshaking with the device 120 to be charged through the first voltage output port 12 and the second voltage output port 13, output a fifth control signal to the first voltage conversion chip U1, and output a sixth control signal to the second voltage conversion chip U2.
The first voltage conversion chip U1 is specifically further configured to convert the output voltage of the power supply 110 according to the fifth control signal to obtain a fifth direct current, and output the fifth direct current through the first voltage output port 12 to charge the device to be charged 120 connected to the first voltage output port 12.
The second voltage conversion chip U2 is specifically further configured to convert the output voltage of the power supply 110 according to the sixth control signal to obtain a sixth direct current, and output the sixth direct current through the second voltage output port 13 to charge the device to be charged 120 connected to the second voltage output port 13.
It should be noted that, when the control unit 30 detects that the first voltage output port 12 and the second voltage output port 13 are both connected to the device to be charged 120, a protocol handshake is performed with the device to be charged 120 connected to the first voltage output port 12 and the second voltage output port 13, and a fifth control signal is output to the first voltage conversion chip U1, and a sixth control signal is output to the second voltage conversion chip U2.
The first voltage conversion chip U1 converts the output voltage of the power supply 110 according to the fifth control signal to obtain a fifth direct current, and outputs the fifth direct current to charge the device to be charged 120 through the first voltage output port 12. The second voltage conversion chip U2 converts the output voltage of the power supply 110 according to the sixth control signal to obtain a sixth direct current, and outputs the sixth direct current to charge the device to be charged 120 through the second voltage output port 13. The to-be-charged device 120 connected to the first voltage output port 12 and the to-be-charged device 120 connected to the second voltage output port 13 are two different to-be-charged devices, and the sum of the power of the fifth direct current and the power of the sixth direct current is equal to the preset maximum output power.
The embodiment provides a discharge control circuit, portable power source and power adapter, wherein, a discharge control circuit includes: the voltage output unit group, the voltage conversion unit group and the control unit are connected with the voltage output unit group, so that the control unit can detect the connection state of each voltage output unit in the voltage output unit group and the equipment to be charged, and further when detecting that the voltage output unit is connected with the equipment to be charged, the voltage conversion unit corresponding to the voltage output unit outputs a corresponding control signal, and according to the control signal, the voltage conversion unit controls the power of the charging direct current output by the voltage output unit group to be equal to the preset maximum output power, so that the maximum output power can be achieved when the equipment to be charged is charged, and the charging efficiency is improved.
Another objective of the present embodiment is to provide a mobile power supply, specifically referring to fig. 4.
Fig. 4 shows a schematic structural diagram of a mobile power supply according to an embodiment of the present invention.
As shown in fig. 4, a mobile power supply 200 includes a power supply 110 and further includes the discharge control circuit 100 of the above-described embodiment.
In this embodiment, the power supply 110 may include a charging battery cell, which is a lithium ion battery cell.
It should be understood that, since the specific implementation and the working principle of the mobile power supply 200 related to the present invention provided in this embodiment are already described in detail in the foregoing embodiments, the details are not repeated here.
It is a further object of this embodiment to provide a power adapter, particularly with reference to fig. 5.
Fig. 5 shows a schematic structural diagram of a power adapter according to an embodiment of the present invention.
As shown in fig. 5, a power adapter 300 is used to connect a power source 110 to charge a device 120 to be charged, and the power adapter 300 includes the discharge control circuit 100 of the above embodiment.
It should be noted that, the power supply 110 in this embodiment may be an ac power supply or a dc power supply.
In practical applications, the voltage conversion unit 21 in the discharge control circuit 100 may select different voltage conversion chips according to the power source 110.
For example, when the power source 110 is an ac power source, the voltage conversion chip may be an ac-dc current conversion chip. For another example, when the power supply 110 is a dc power supply, the voltage conversion chip may be a dc current conversion chip.
It should be understood that, since the specific implementation and the working principle of the power adapter 300 related to the present invention provided in this embodiment are already described in detail in the foregoing embodiments, the details are not repeated here.
The embodiment provides a discharge control circuit, portable power source and power adapter, wherein, a discharge control circuit includes: the voltage output unit group, the voltage conversion unit group and the control unit are connected with the voltage output unit group, so that the control unit can detect the connection state of each voltage output unit in the voltage output unit group and the equipment to be charged, and further when detecting that the voltage output unit is connected with the equipment to be charged, the voltage conversion unit corresponding to the voltage output unit outputs a corresponding control signal, and according to the control signal, the voltage conversion unit controls the power of the charging direct current output by the voltage output unit group to be equal to the preset maximum output power, so that the maximum output power can be achieved when the equipment to be charged is charged, and the charging efficiency is improved.
The units in the terminal of the embodiment of the invention can be combined, divided and deleted according to actual needs.
The present invention is not limited to the above embodiments, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the present invention, and these modifications and substitutions are intended to be included in the scope of the present invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (4)
1. A discharge control circuit coupled to a power source, the discharge control circuit comprising:
The voltage output unit group comprises at least two voltage output units, and the voltage output units are used for being connected with equipment to be charged;
The voltage conversion unit group comprises at least two voltage conversion units which are connected with the voltage output units in a one-to-one correspondence manner, and is used for converting the output voltage of the power supply and determining charging direct current output by the voltage output unit group according to a control signal, wherein the power of the charging direct current is equal to the preset maximum output power;
the control unit is respectively connected with each voltage output unit and each voltage conversion unit and is used for outputting the control signal to the voltage conversion unit corresponding to the voltage output unit when the voltage output unit is detected to be connected with the equipment to be charged; the detected end of the voltage output unit is connected with the detection end of the control unit;
The control unit is specifically configured to, when detecting that the voltage output unit is connected to the device to be charged through the detection end, perform a protocol handshake with the device to be charged through the voltage output unit, and output the control signal to the voltage conversion unit; the input end of the voltage conversion unit is connected with the power supply, the controlled end of the voltage conversion unit is connected with the control end of the control unit, and the output end of the voltage conversion unit is connected with the input end of the voltage output unit; the voltage output unit is a voltage output port, and the voltage output unit group comprises a first voltage output port and a second voltage output port; the voltage conversion unit is a voltage conversion chip, and the voltage conversion unit group comprises a first voltage conversion chip and a second voltage conversion chip;
the detected end of the first voltage output port is connected with the first detection end of the control unit;
The detected end of the second voltage output port is connected with the second detection end of the control unit;
The input end of the first voltage conversion chip is connected with the power supply, the controlled end of the first voltage conversion chip is connected with the first control end of the control unit, and the output end of the first voltage conversion chip is connected with the input end of the first voltage output port;
The input end of the second voltage conversion chip is connected with the power supply, the controlled end of the second voltage conversion chip is connected with the second control end of the control unit, and the output end of the second voltage conversion chip is connected with the input end of the second voltage output port; the control unit is specifically configured to perform a protocol handshake with the device to be charged through the first voltage output port and output a first control signal to the first voltage conversion chip when only the connection between the first voltage output port and the device to be charged is detected;
The first voltage conversion chip is used for converting the output voltage of the power supply according to the first control signal to obtain a first direct current, and outputting the first direct current through the first voltage output port so as to charge equipment to be charged, which is connected to the first voltage output port; the control unit is specifically further configured to send a power-off control signal to the first voltage conversion chip when the second voltage output port is detected to be connected to the device to be charged after the first control signal is output, and respectively handshake with the device to be charged through the first voltage output port and the second voltage output port, output a second control signal to the first voltage conversion chip, and output a third control signal to the second voltage conversion chip;
The first voltage conversion chip is specifically configured to disconnect charging of the device to be charged according to the power-off control signal, convert an output voltage of the power supply according to the second control signal to obtain a second direct current, and output the second direct current through the first voltage output port so as to charge the device to be charged connected to the first voltage output port;
The second voltage conversion chip is specifically configured to convert an output voltage of the power supply according to the third control signal to obtain a third direct current, and output the third direct current through the second voltage output port, so as to charge a device to be charged connected to the second voltage output port;
The control unit is specifically further configured to, when detecting that the first voltage output port and the second voltage output port are both connected to the device to be charged, respectively perform protocol handshaking with the device to be charged through the first voltage output port and the second voltage output port, output a fifth control signal to the first voltage conversion chip, and output a sixth control signal to the second voltage conversion chip;
The first voltage conversion chip is specifically further configured to convert an output voltage of the power supply according to the fifth control signal to obtain a fifth direct current, and output the fifth direct current through the first voltage output port, so as to charge equipment to be charged connected to the first voltage output port;
The second voltage conversion chip is specifically further configured to convert an output voltage of the power supply according to the sixth control signal to obtain a sixth direct current, and output the sixth direct current through the second voltage output port, so as to charge the device to be charged connected to the second voltage output port.
2. The discharging control circuit according to claim 1, wherein the control unit is further configured to send a power-off control signal to the first voltage conversion chip and to re-perform a protocol handshake with the device to be charged through the second voltage output port and to output a fourth control signal to the second voltage conversion chip if the first voltage output port is detected not to be connected to the device to be charged after the second control signal and the third control signal are output;
The second voltage conversion chip is specifically further configured to convert an output voltage of the power supply according to the fourth control signal to obtain a fourth direct current, and output the fourth direct current through the second voltage output port, so as to charge the device to be charged connected to the second voltage output port.
3. A mobile power supply comprising a power supply, characterized in that the mobile power supply further comprises the discharge control circuit of any one of claims 1 to 2.
4. A power adapter for connecting a power supply to charge a device to be charged, characterized in that the power adapter comprises a discharge control circuit according to any one of claims 1 to 2.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811628194.4A CN109474046B (en) | 2018-12-28 | 2018-12-28 | Discharge control circuit, mobile power supply and power adapter |
| PCT/CN2019/127079 WO2020135263A1 (en) | 2018-12-28 | 2019-12-20 | Discharge control circuit and discharge control method thereof, mobile power supply, and power adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811628194.4A CN109474046B (en) | 2018-12-28 | 2018-12-28 | Discharge control circuit, mobile power supply and power adapter |
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| Publication Number | Publication Date |
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| CN109474046A CN109474046A (en) | 2019-03-15 |
| CN109474046B true CN109474046B (en) | 2024-06-18 |
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| CN201811628194.4A Active CN109474046B (en) | 2018-12-28 | 2018-12-28 | Discharge control circuit, mobile power supply and power adapter |
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| Country | Link |
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| CN (1) | CN109474046B (en) |
| WO (1) | WO2020135263A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109474046B (en) * | 2018-12-28 | 2024-06-18 | 合肥市芯海电子科技有限公司 | Discharge control circuit, mobile power supply and power adapter |
| CN110492562B (en) * | 2019-08-16 | 2020-11-24 | 珠海格力电器股份有限公司 | Mobile power supply equipment, power supply control method and device thereof, and power supply equipment |
| CN113497564B (en) | 2020-04-03 | 2023-08-18 | 台达电子企业管理（上海）有限公司 | Power adapter and control method thereof |
| US11616449B2 (en) | 2020-04-03 | 2023-03-28 | Delta Electronics (Shanghai) Co., Ltd | Power adapter |
| CN211579860U (en) | 2020-04-03 | 2020-09-25 | 台达电子企业管理（上海）有限公司 | Power adapter |
| CN113687552B (en) * | 2020-05-19 | 2024-11-12 | 联合微电子中心有限责任公司 | A phase shift control circuit |
| CN114362302A (en) * | 2021-12-28 | 2022-04-15 | 始途科技(杭州)有限公司 | A charging device and control method thereof |
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| CN106208621A (en) * | 2015-03-02 | 2016-12-07 | 耕源科技股份有限公司 | Power adapter, power adaptation system and method thereof |
| CN107863792A (en) * | 2017-10-01 | 2018-03-30 | 深圳市博源电子有限公司 | Charging control method and charger |
| CN209963767U (en) * | 2018-12-28 | 2020-01-17 | 合肥市芯海电子科技有限公司 | Discharge control circuit, portable power source and power adapter |
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| US7436687B2 (en) * | 2005-03-23 | 2008-10-14 | International Business Machines Corporation | Intelligent direct current power supplies |
| US20130141047A1 (en) * | 2011-12-02 | 2013-06-06 | Golden Crown New Energy (Hk) Limited | Battery management system and method thereof |
| TWI498704B (en) * | 2012-11-06 | 2015-09-01 | 泰達電子公司 | Power converter capable of dynamically adjusting output voltage and power supply system using the same |
| JP6332748B2 (en) * | 2014-08-07 | 2018-05-30 | ニチコン株式会社 | Charge / discharge power supply |
| CN105024433B (en) * | 2015-09-01 | 2018-03-02 | 深圳市科华恒盛科技有限公司 | A kind of the charge power distribution system and method for two-way charging |
| CN105978101B (en) * | 2016-06-30 | 2019-02-05 | 联想(北京)有限公司 | A kind of mobile power source charging method, power supply adaptor and mobile power source |
| CN206775170U (en) * | 2017-04-17 | 2017-12-19 | 东莞市隆佳展能源科技有限公司 | Multi-output interface power regulation control charging device |
| CN109474046B (en) * | 2018-12-28 | 2024-06-18 | 合肥市芯海电子科技有限公司 | Discharge control circuit, mobile power supply and power adapter |
-
2018
- 2018-12-28 CN CN201811628194.4A patent/CN109474046B/en active Active
-
2019
- 2019-12-20 WO PCT/CN2019/127079 patent/WO2020135263A1/en not_active Ceased
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106208621A (en) * | 2015-03-02 | 2016-12-07 | 耕源科技股份有限公司 | Power adapter, power adaptation system and method thereof |
| CN107863792A (en) * | 2017-10-01 | 2018-03-30 | 深圳市博源电子有限公司 | Charging control method and charger |
| CN209963767U (en) * | 2018-12-28 | 2020-01-17 | 合肥市芯海电子科技有限公司 | Discharge control circuit, portable power source and power adapter |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020135263A1 (en) | 2020-07-02 |
| CN109474046A (en) | 2019-03-15 |
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