CN107482612B - Electronic equipment and power supply method - Google Patents
Electronic equipment and power supply method Download PDFInfo
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- CN107482612B CN107482612B CN201710680922.5A CN201710680922A CN107482612B CN 107482612 B CN107482612 B CN 107482612B CN 201710680922 A CN201710680922 A CN 201710680922A CN 107482612 B CN107482612 B CN 107482612B
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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
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/10—Parallel operation of dc sources
- H02J1/102—Parallel operation of dc sources being switching converters
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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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
Abstract
The invention provides an electronic device and a power supply method, wherein the electronic device comprises a plurality of connection ports; a controller connected to each connection port and configured to acquire first information of output power of an adapter to which each connection port is connected, the first information including output power of the adapter; the balance logic module comprises a current adjusting part and a current limiting control part, wherein the current limiting control part is configured to determine a ratio of output power of the adapter connected with each connecting port according to first information of the adapter connected with each connecting port transmitted by the controller, and respectively and correspondingly adjust an output current value of each current adjusting part according to the ratio, and output power of each current adjusting part is output through a first output port; a power supply module that performs a charging operation and a power supply operation of an electronic device based on the output power output from the first output port. The invention can simultaneously supply power to a plurality of adapters.
Description
Technical Field
The embodiment of the invention relates to the field of electronic equipment, in particular to electronic equipment and a power supply method.
Background
At present, electronic equipment such as a notebook computer can be usually provided with a plurality of connection ports for being connected with other equipment, but in the prior art, these connection ports can supply power to a plurality of other equipment respectively simultaneously, but can not realize utilizing power supply equipment such as a plurality of adapters to supply power to electronic equipment through these a plurality of connection ports respectively, and user experience is not good.
Disclosure of Invention
The embodiment of the invention relates to an electronic device and a power supply method capable of simultaneously utilizing a plurality of power supply devices for power supply.
In order to solve the above technical problem, an embodiment of the present invention provides the following technical solutions:
an embodiment of the present invention provides an electronic device, including:
a plurality of connection ports;
a controller connected to each connection port and configured to acquire first information of output power of an adapter to which each connection port is connected, the first information including output power of the adapter;
the balance logic module comprises current adjusting parts respectively connected with the connecting ports correspondingly, and current limiting control parts respectively connected with the current adjusting parts and the controller, wherein the current limiting control parts are configured to determine the ratio of the output power of the adapter connected with the connecting ports according to first information of the adapter connected with the connecting ports transmitted by the controller, and respectively and correspondingly adjust the output current value of each current adjusting part according to the ratio, and the output power of each current adjusting part is output through a first output port;
a power supply module connected with the first output port of the equalization logic module and performing a charging operation and a power supply operation of an electronic device based on the output power output from the first output port.
Wherein the current adjusting part includes an adjustable impedance component, and,
and the current limiting control part correspondingly adjusts the impedance value of each adjustable impedance component according to the inverse proportion of the output power ratio of the adapter connected with each connecting port.
Wherein the adjustable impedance component comprises a first transistor and a second transistor connected in series.
Wherein the adjustable impedance component comprises a variable resistor.
Wherein a first terminal of the first transistor is connected to the current limit control unit, a second terminal of the first transistor is connected to a corresponding connection port, a third terminal of the first transistor is connected to a third terminal of the second transistor, a second terminal of the second transistor is connected to the power supply module, and a first terminal of the second transistor is connected to the current limit control unit.
Wherein the equalization logic module further comprises:
the power detection module is configured to detect the output current value of each current regulation part and feed back the output current value to the current limiting control part;
the current limiting control part is further configured to adjust the output current of each current adjusting part correspondingly based on the ratio of the current value fed back by the power detection module and the ratio of the output power of the adapter connected with each connection port.
Wherein the power detection module is further configured to detect a voltage value of the power output by each of the current adjusting parts,
the balance logic module further comprises a protection module which is connected with the power detection module and the current regulation parts and is configured to turn off each current regulation part or turn off the current regulation part with the lower voltage value of the output power when the voltage values of the output power of each current regulation part are different.
The power detection unit detects output voltages of the first resistors to determine a voltage value of output power of the current adjustment unit.
The embodiment of the present invention further provides a power supply method, which is applied to the electronic device in the above embodiment, and includes:
the method comprises the steps that a controller obtains first information of output power of an adapter connected with each connecting port of electronic equipment, wherein the first information comprises the output power of the adapter;
the current limiting control part in the balance logic module determines the ratio of the output power of the adapter connected with each connecting port according to the first information of the adapter connected with each connecting port transmitted by the controller, and respectively and correspondingly adjusts the output current value of each current adjusting part in the balance logic module according to the ratio, and the output power of each current adjusting part is output through a first output port;
the power supply module performs a charging operation and a power supplying operation of the electronic device based on the output power output from the first output port.
Wherein the method further comprises:
detecting the output current value of each current regulating part by using an electric power detection module, and feeding back the output current value to the current limiting control part;
the current limiting control part correspondingly adjusts the output current of each current adjusting part based on the ratio of the current value fed back by the power detection module and the ratio of the output power of the adapter connected with each connecting port.
Compared with the prior art, the embodiment of the invention has the beneficial effects that:
the embodiment of the invention can realize simultaneous power supply through a plurality of adapters and can accurately manage the output current. And when adapters with different powers are connected, the function of equal-proportion discharging of different adapters can be realized. The adapter has the advantages that the current limiting function is arranged on each connecting line of the adapter, the problem of overheating or over-power of a small adapter is solved, the reverse filling prevention function is also achieved, and the overall cost of the adapter can be saved.
Drawings
FIG. 1 is a schematic block diagram of an electronic device according to an embodiment of the present invention;
FIG. 2 is a schematic block diagram of an electronic device including two connection ports according to an embodiment of the present invention;
FIG. 3 is a schematic block diagram of an electronic device according to another embodiment of the present invention;
fig. 4 is a schematic flow chart of a power supply method in an embodiment of the invention.
Detailed Description
The following detailed description of specific embodiments of the present invention is provided in connection with the accompanying drawings, which are not intended to limit the invention.
It will be understood that various modifications may be made to the embodiments disclosed herein. Accordingly, the foregoing description should not be construed as limiting, but merely as exemplifications of embodiments. Other modifications will occur to those skilled in the art within the scope and spirit of the disclosure.
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the disclosure and, together with a general description of the disclosure given above, and the detailed description of the embodiments given below, serve to explain the principles of the disclosure.
These and other characteristics of the invention will become apparent from the following description of a preferred form of embodiment, given as a non-limiting example, with reference to the accompanying drawings.
It should also be understood that, although the invention has been described with reference to some specific examples, a person of skill in the art shall certainly be able to achieve many other equivalent forms of the invention, having the characteristics as set forth in the claims and hence all coming within the field of protection defined thereby.
The above and other aspects, features and advantages of the present disclosure will become more apparent in view of the following detailed description when taken in conjunction with the accompanying drawings.
Specific embodiments of the present disclosure are described hereinafter with reference to the accompanying drawings; however, it is to be understood that the disclosed embodiments are merely examples of the disclosure that may be embodied in various forms. Well-known and/or repeated functions and structures have not been described in detail so as not to obscure the present disclosure with unnecessary or unnecessary detail. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present disclosure in virtually any appropriately detailed structure.
The specification may use the phrases "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," which may each refer to one or more of the same or different embodiments in accordance with the disclosure.
The present invention provides an electronic device, which can be connected to a plurality of adapters or other power supply devices at the same time, and adjust the power input to each electronic device in the electronic device according to the output power of each adapter, so as to solve the bottleneck of intelligent power supply through a single adapter, and greatly increase the power supply speed.
As shown in fig. 1 and fig. 2, which are schematic block diagrams of an electronic device in an embodiment of the present invention, the electronic device may include: the electronic equipment comprises a plurality of connection ports D1 … Dn, a controller 1 connected with each connection port, an equalization logic module 2 and a power supply module 3 which is connected with the equalization logic module 2 and supplies or charges the electronic equipment through the power output by the equalization logic module 2.
The controller 1 in the embodiment of the present invention may be connected to each of the connection ports D1 … Dn, and obtain first information of output power of the adapter connected to each of the connection ports D1 … Dn, where the first information includes information such as output power, output voltage, and output current of the adapter. For example, a detection module may be provided at each connection port, and each detection module may detect first information of an adapter connected to the connection port and transmit the first information to the controller 1. However, the present invention is not limited to this, and the embodiment of the present invention may also adopt other ways to enable the controller 1 to obtain the first information of each accessed adapter.
In addition, the equalization logic module 2 in the embodiment of the present invention may be connected to the controller 1 and each of the connection ports D1 … Dn, and may receive first information about an adapter connected to the connection port from the controller 1, and correspondingly adjust a current value of power supplied by each adapter based on a ratio of power values in each of the first information, so that a current of power supplied by each adapter may be adjusted according to a power ratio that can be supplied by the adapter, so that the electronic device can perform a charging or power supplying operation by power commonly supplied by the plurality of adapters.
Specifically, the balancing logic module 2 may include a current adjusting portion 22 respectively connected to each of the connection ports D1 … Dn, and a current limiting control portion 21 respectively connected to each of the current adjusting portions 22 and the controller 1, where the current limiting control portion 21 may determine a ratio of output powers of adapters connected to each of the connection ports according to first information of the adapters connected to each of the connection ports transmitted by the controller 1, and correspondingly adjust an output current value of each of the current adjusting portions 22 according to the ratio, where the output power of each of the current adjusting portions is output through a first output port. When the embodiment of the present invention includes a plurality of connection ports, the plurality of connection ports may all be connected with adapters, or some of the connection ports may be connected with adapters, and the embodiment of the present invention may implement the configuration of the current regulation when more than 1 adapter is connected.
In addition, the power supply module 3 may receive the power output by the equalization logic module 2 and perform charging of the battery assembly 4 of the electronic device or power supply operation of other electric devices.
Fig. 2 is a schematic block diagram of an electronic device according to an embodiment of the present invention, in which two connection ports are taken as an example for illustration.
The electronic device in the embodiment of the present invention may include two connection ports D1 and D2, and the following embodiment is described by taking an example in which adapters are connected to both of the two connection ports D1 and D2.
In this embodiment of the present invention, the connection ports D1 and D2 are respectively connected to the controller 1, and the controller 1 can respectively obtain the first information of the first adapter connected to the connection port D1, which includes the first output power of the first adapter, and the first information of the second adapter connected to the connection port D2, which may include the second output power of the second adapter. The controller 1 may transmit the obtained first information of each adapter to the current limit control unit 21, and the current limit control unit 21 may determine the proportion of the output current of the current adjusting unit according to the ratio of the first output power and the second output power. The proportion of the output current can be adjusted by adjusting the resistance value of the current adjusting section 22 in the present embodiment.
For example, the current adjusting section 22 may include adjustable impedance components, and the current limit control section 21 may correspondingly adjust the impedance values of the adjustable impedance components in inverse proportion to the ratio of the output powers of the adapters connected to the connection ports. That is, and the embodiment of the present invention can realize that the ratio of the current output through each current adjustment section 22 is the same as the ratio of the output power of the adapter of the corresponding connection port, and is opposite to the impedance value of each current adjustment section 22.
Assuming that the impedance of the adjustable impedance component in the current regulation section connected to the connection port D1 is R3 and the impedance of the adjustable impedance component in the current regulation section connected to the connection port D2 is R4, the ratio between the first output power and the second output power is equal to the ratio between R4 and R3. That is, the current limit control unit 21 may correspondingly adjust the impedance values of the adjustable impedance components in the two current adjusting units 22 according to the inverse ratio of the first output power and the second output power.
In one embodiment of the present invention, the adjustable impedance component may include a variable resistor, which may change a resistance value according to the control of the current limit control part 21, thereby adjusting the output current of the current adjusting part. In another embodiment of the present invention, the adjustable impedance component in each current adjusting section 22 may include two transistors connected in series, and the two transistors connected in series are connected in reverse. For example, the adjustable impedance component in the current adjusting part 22 corresponding to the connection port D1 may include a first transistor Q1 and a second transistor Q2, and the adjustable impedance component in the current adjusting part corresponding to the connection port D2 may include a third transistor Q3 and a fourth transistor Q4 connected in series, where Q1 is connected in reverse to Q2, and Q3 is connected in reverse to Q4. The current limit control unit 21 can adjust the impedance value of each transistor by adjusting the input current of the first terminal of the corresponding transistor.
For example, a first terminal of the first transistor Q1 may be connected to the current limit control section 21, a second terminal of the first transistor Q1 is connected to the corresponding connection port D1, a third terminal of the first transistor Q1 is connected to a third terminal of the second transistor Q2, a second terminal of the second transistor is connected to the power supply module, that is, a second terminal of the second transistor may be connected to the first output port D3, and a first terminal of the second transistor is connected to the current limit control section 21. The above transistors may be field effect transistors, in which the first terminal of the first transistor Q1 may be configured as a gate, the second terminal as a source, and the third terminal as a drain, while the first terminal of the second transistor Q2 may be configured as a gate, the second terminal as a source, and the third terminal as a drain.
Similarly, the first terminal of the third transistor Q3 in the current adjusting unit 22 corresponding to the connection port D2 may be connected to the current limit control unit 21, the second terminal of the third transistor Q3 may be connected to the corresponding connection port D2, the third terminal of the third transistor Q3 may be connected to the third terminal of the fourth transistor Q4, the second terminal of the fourth transistor Q4 may be connected to the power supply module, that is, the second terminal of the second transistor may be connected to the first output port D3, and the first terminal of the fourth transistor Q4 may be connected to the current limit control unit 21. The above-described transistors may be field effect transistors, in which the first terminal of the third transistor Q3 may be configured as a gate, the second terminal may be a source, and the third terminal is a drain, while the first terminal of the fourth transistor Q4 may be configured as a gate, the second terminal is a source, and the third terminal is a drain.
In addition, in the above embodiment, the current limit control part 21 may simultaneously transmit a signal for adjusting the impedance to each current adjustment part 22. In another embodiment, the current limiting control part 21 may also include sub-control parts corresponding to the current adjusting parts 22, respectively, and each sub-control part may send a signal for adjusting its impedance to the corresponding current adjusting part, that is, the current limiting control part 21 in the embodiment of the present invention may include one or more sub-control parts for adjusting the impedance of each current adjusting part 22.
Through the configuration, the conversion and the output of the power provided by different adapters can be realized through the balance logic module, each adapter can provide power for the electronic equipment, and only one adapter can be prevented from supplying power for the electronic equipment when a plurality of adapters are connected.
Further, as shown in fig. 3, in another embodiment of the present invention, the balancing logic module 2 further includes a power detection module 23, where the power detection module 23 can detect an output current value of each current adjusting portion 22 and feed back the output current value to the current limiting control portion 21; the current limiting control unit 21 may further adjust the output current of each current adjusting unit according to the ratio of the current value fed back by the power detection module 23 and the ratio of the output power of the adapter connected to each connection port. That is, in the embodiment of the present invention, it is also possible to detect whether the ratio between the output current adjusted by the current adjusting unit 22 and the power supplied from the adapter is the same in real time, and further perform feedback adjustment when the output current and the power are different from each other, thereby ensuring the accuracy of current adjustment.
Further, the power detection module 23 in the embodiment of the present invention may further detect a voltage value of the power output by each of the current adjusting portions, and the balancing logic module 2 further includes a protection module 24, where the protection module 24 may be connected to the power detection module 23 and the current adjusting portions 22, and may be configured to turn off each of the current adjusting portions or turn off the current adjusting portion with a lower voltage value of the output power when the voltage values of the power output by each of the current adjusting portions 22 are different. That is, in the embodiment of the present invention, since each current adjusting portion 22 is connected to the power supply module 3 through the first output port D3, if the voltages of the power output by each current adjusting portion 22 are different, a voltage difference is generated, and at this time, a circuit back-flowing phenomenon occurs, which may possibly burn the electronic device. In order to prevent this phenomenon, the embodiment of the present invention uses the power detection module 23 to detect the voltage value of the power output from the current adjustment portion 22 in real time, and immediately turns off all the current adjustment portions 22 or turns off the current adjustment portion with a smaller voltage value when the voltage values are different.
When the adjustable impedance components in each current regulator are two transistors connected in opposite directions, the protection module 24 may be connected to a first terminal (e.g., a gate) of each transistor, and output a corresponding high level signal or low level signal to the first terminal to turn off the transistor. The protection module 24 in the embodiment of the present invention may be a signal generator, and when the power detection module 23 detects that the voltage values of the power output from the current adjustment portion 22 are different, a control instruction may be sent to all the protection modules 24 or the protection modules corresponding to the low-voltage current adjustment portion 22, and the corresponding protection module generates a high-level or low-level signal for turning off the transistors in the current adjustment portion 22 based on the control instruction. The high level signal or the low level signal may be determined according to a cutoff type of the transistor.
In addition, in the embodiment of the present invention, the first resistor R1 is connected between the output side of each current adjusting unit 22 and the first output port D3, and the power detecting unit 23 can determine the voltage value of the output power of each corresponding current adjusting unit 22 by detecting the output side voltage of each first resistor R1. Alternatively, the power detection unit 23 may detect a voltage difference between output sides of the first resistors, and when the voltage difference is not 0, the protection module 24 may turn off the transistors to perform a protection function.
In the above embodiment of the present invention, when the voltage values of the power output by the adapters connected to the connection ports D1 … Dn are the same, the impedance and the output current of the current adjusting unit corresponding to each port can be adjusted by the balance logic module 2 directly. When the voltage values of the output power of the adapters connected to the connection ports D1 … Dn are different, the embodiment of the present invention may further include a voltage transformation module 4, which may be connected between the connection ports D1 … Dn and the equalization logic module 2, and correspondingly adjust the power transmitted by the connection ports D1 … Dn to a preset voltage, where the preset voltage may be set according to different configurations of the electronic device.
Specifically, the transforming module 4 may correspondingly include transformers 41 corresponding to the connection ports one by one, and each transformer 41 is connected to one connection port and one current adjusting unit 22, so that the current adjusting unit 22 adjusts the output current ratio according to the power ratio of the output power of each adapter according to the control command of the current limiting control unit 21.
In addition, in the embodiment of the present invention, the first information about the adapter connected to the connection port, acquired by the controller 1, may further include a maximum power that the adapter can provide, and the controller 1 may also acquire a power of power that the electronic device currently needs to use, and when the controller 1 determines that the required power of the electronic device is greater than the maximum power that the adapter can provide, reducing the current power of the electronic device may be performed, for example, the operating frequency of the CPU may be reduced, and a part of the program may be turned off to reduce the required power of the electronic device.
In summary, the embodiment of the invention can realize simultaneous power supply through a plurality of adapters, and can accurately manage the output current. And when adapters with different powers are connected, the function of equal-proportion discharging of different adapters can be realized. The adapter has the advantages that the current limiting function is arranged on each connecting line of the adapter, the problem of overheating or over-power of a small adapter is solved, the reverse filling prevention function is also achieved, and the overall cost of the adapter can be saved.
In addition, an embodiment of the present invention further provides a power supply method, which may be applied to the electronic device described in the above embodiment, as shown in fig. 4, which is a schematic flow chart of the power supply method in the embodiment of the present invention, where the method may include:
the method comprises the steps that a controller obtains first information of output power of an adapter connected with each connecting port of electronic equipment, wherein the first information comprises the output power of the adapter;
the current limiting control part in the balance logic module determines the ratio of the output power of the adapter connected with each connecting port according to the first information of the adapter connected with each connecting port transmitted by the controller, and respectively and correspondingly adjusts the output current value of each current adjusting part in the balance logic module according to the ratio, and the output power of each current adjusting part is output through a first output port;
the power supply module performs a charging operation and a power supplying operation of the electronic device based on the output power output from the first output port.
The controller 1 in the embodiment of the present invention may be connected to each of the connection ports D1 … Dn, and obtain first information of output power of the adapter connected to each of the connection ports D1 … Dn, where the first information includes information such as output power, output voltage, and output current of the adapter. For example, a detection module may be provided at each connection port, and each detection module may detect first information of an adapter connected to the connection port and transmit the first information to the controller 1. However, the present invention is not limited to this, and the embodiment of the present invention may also adopt other ways to enable the controller 1 to obtain the first information of each accessed adapter.
In addition, the equalization logic module 2 in the embodiment of the present invention may be connected to the controller 1 and each of the connection ports D1 … Dn, and may receive first information about an adapter connected to the connection port from the controller 1, and correspondingly adjust a current value of power supplied by each adapter based on a ratio of power values in each of the first information, so that a current of power supplied by each adapter may be adjusted according to a power ratio that can be supplied by the adapter, so that the electronic device can perform a charging or power supplying operation by power commonly supplied by the plurality of adapters.
Specifically, the balancing logic module 2 may include a current adjusting portion 22 respectively connected to each of the connection ports D1 … Dn, and a current limiting control portion 21 respectively connected to each of the current adjusting portions 22 and the controller 1, where the current limiting control portion 21 may determine a ratio of output powers of adapters connected to each of the connection ports according to first information of the adapters connected to each of the connection ports transmitted by the controller 1, and correspondingly adjust an output current value of each of the current adjusting portions 22 according to the ratio, where the output power of each of the current adjusting portions is output through a first output port. When the embodiment of the present invention includes a plurality of connection ports, the plurality of connection ports may all be connected with adapters, or some of the connection ports may be connected with adapters, and the embodiment of the present invention may implement the configuration of the current regulation when more than 1 adapter is connected.
In addition, the power supply module 3 may receive the power output by the equalization logic module 2 and perform charging of the battery assembly of the electronic device or power supply operation of other electric devices.
Two connection ports are taken as an example for explanation.
The electronic device in the embodiment of the present invention may include two connection ports D1 and D2, and the following embodiment is described by taking an example in which adapters are connected to both of the two connection ports D1 and D2.
In this embodiment of the present invention, the connection ports D1 and D2 are respectively connected to the controller 1, and the controller 1 can respectively obtain the first information of the first adapter connected to the connection port D1, which includes the first output power of the first adapter, and the first information of the second adapter connected to the connection port D2, which may include the second output power of the second adapter. The controller 1 may transmit the obtained first information of each adapter to the current limit control unit 21, and the current limit control unit 21 may determine the proportion of the output current of the current adjusting unit according to the ratio of the first output power and the second output power. The proportion of the output current can be adjusted by adjusting the resistance value of the current adjusting section 22 in the present embodiment.
For example, the current adjusting section 22 may include adjustable impedance components, and the current limit control section 21 may correspondingly adjust the impedance values of the adjustable impedance components in inverse proportion to the ratio of the output powers of the adapters connected to the connection ports. That is, and the embodiment of the present invention can realize that the ratio of the current output through each current adjustment section 22 is the same as the ratio of the output power of the adapter of the corresponding connection port, and is opposite to the impedance value of each current adjustment section 22.
Assuming that the impedance of the adjustable impedance component in the current regulation section connected to the connection port D1 is R3 and the impedance of the adjustable impedance component in the current regulation section connected to the connection port D2 is R4, the ratio between the first output power and the second output power is equal to the ratio between R4 and R3. That is, the current limit control unit 21 may correspondingly adjust the impedance values of the adjustable impedance components in the two current adjusting units 22 according to the inverse ratio of the first output power and the second output power.
In one embodiment of the present invention, the adjustable impedance component may include a variable resistor, which may change a resistance value according to the control of the current limit control part 21. In another embodiment of the present invention, the adjustable impedance component in each current adjusting section 22 may include two transistors connected in series, and the two transistors connected in series are connected in reverse. For example, the adjustable impedance component in the current adjusting part 22 corresponding to the connection port D1 may include a first transistor Q1 and a second transistor Q2, and the adjustable impedance component in the current adjusting part corresponding to the connection port D2 may include a third transistor Q3 and a fourth transistor Q4 connected in series, where Q1 is connected in reverse to Q2, and Q3 is connected in reverse to Q4.
For example, a first terminal of the first transistor Q1 may be connected to the current limit control section 21, a second terminal of the first transistor Q1 is connected to the corresponding connection port D1, a third terminal of the first transistor Q1 is connected to a third terminal of the second transistor Q2, a second terminal of the second transistor is connected to the power supply module, that is, a second terminal of the second transistor may be connected to the first output port D3, and a first terminal of the second transistor is connected to the current limit control section 21. The above transistors may be field effect transistors, in which the first terminal of the first transistor Q1 may be configured as a gate, the second terminal as a source, and the third terminal as a drain, while the first terminal of the second transistor Q2 may be configured as a gate, the second terminal as a source, and the third terminal as a drain.
Similarly, the first terminal of the third transistor Q3 in the current adjusting unit 22 corresponding to the connection port D2 may be connected to the current limit control unit 21, the second terminal of the third transistor Q3 may be connected to the corresponding connection port D2, the third terminal of the third transistor Q3 may be connected to the third terminal of the fourth transistor Q4, the second terminal of the fourth transistor Q4 may be connected to the power supply module, that is, the second terminal of the second transistor may be connected to the first output port D3, and the first terminal of the fourth transistor Q4 may be connected to the current limit control unit 21. The above-described transistors may be field effect transistors, in which the first terminal of the third transistor Q3 may be configured as a gate, the second terminal may be a source, and the third terminal is a drain, while the first terminal of the fourth transistor Q4 may be configured as a gate, the second terminal is a source, and the third terminal is a drain.
Through the configuration, the conversion and the output of the power provided by different adapters can be realized through the balance logic module, each adapter can provide power for the electronic equipment, and only one adapter can be prevented from supplying power for the electronic equipment when a plurality of adapters are connected.
Further, the method in the embodiment of the present invention may further include:
detecting the output current value of each current regulating part by using an electric power detection module, and feeding back the output current value to the current limiting control part;
the current limiting control part correspondingly adjusts the output current of each current adjusting part based on the ratio of the current value fed back by the power detection module and the ratio of the output power of the adapter connected with each connecting port.
The balance logic module 2 further includes a power detection module 23, and the power detection module 23 may detect an output current value of each current adjustment portion 22 and feed back the output current value to the current limiting control portion 21; the current limiting control unit 21 may further adjust the output current of each current adjusting unit according to the ratio of the current value fed back by the power detection module 23 and the ratio of the output power of the adapter connected to each connection port. That is, in the embodiment of the present invention, it is also possible to detect whether the ratio between the output current adjusted by the current adjusting unit 22 and the power supplied from the adapter is the same in real time, and further perform feedback adjustment when the output current and the power are different from each other, thereby ensuring the accuracy of current adjustment.
Further, the power detection module 23 in the embodiment of the present invention may further detect a voltage value of the power output by each of the current adjustment portions, and the balance logic module 2 further includes a protection module 24, where the protection module 24 may be connected to the power detection module 23 and the current adjustment portions 22, and when the voltage values of the powers output by the current adjustment portions 22 are different, each of the current adjustment portions is turned off, or the current adjustment portion with the lower voltage value of the output power is turned off. That is, in the embodiment of the present invention, since each current adjusting portion 22 is connected to the power supply module 3 through the first output port D3, if the voltages of the power output by each current adjusting portion 22 are different, a voltage difference is generated, and at this time, a circuit back-flowing phenomenon occurs, which may possibly burn the electronic device. In order to prevent this phenomenon, the embodiment of the present invention uses the power detection module 23 to detect the voltage value of the power output from the current adjustment portion 22 in real time, and immediately turns off all the current adjustment portions 22 or turns off the current adjustment portion with a smaller voltage value when the voltage values are different.
When the adjustable impedance components in each current adjusting portion are two transistors connected in opposite directions, the protection module may be connected to a first terminal (e.g., a gate) of each transistor, and output a corresponding high level signal or low level signal to the first terminal to turn off the transistor.
In addition, in the embodiment of the present invention, the first resistor R1 is connected between the output side of each current adjusting unit 22 and the first output port D3, and the power detecting unit 23 can determine the voltage value of the output power of each corresponding current adjusting unit 22 by detecting the output side voltage of each first resistor R1. Alternatively, the power detection unit 23 may detect a voltage difference between output sides of the first resistors, and when the voltage difference is not 0, the protection module 24 may turn off the transistors to perform a protection function.
In the above embodiment of the present invention, when the voltage values of the power output by the adapters connected to the connection ports D1 … Dn are the same, the impedance and the output current of the current adjusting unit corresponding to each port can be adjusted by the balance logic module 2 directly. When the voltage values of the output power of the adapters connected to the connection ports D1 … Dn are different, the embodiment of the present invention may further include a voltage transformation module 4, which may be connected between the connection ports D1 … Dn and the equalization logic module 2, and correspondingly adjust the power transmitted by the connection ports D1 … Dn to a preset voltage, where the preset voltage may be set according to different configurations of the electronic device. With this configuration, the voltage values of the power supplied from the adapters can all be adjusted to the same preset voltage. The voltage transforming module 4 may include a voltage dropping unit and a voltage boosting unit, and specifically, the voltage dropping unit or the voltage boosting unit may be selected to perform the voltage transforming operation according to a relationship between the output voltage of the adapter and a preset voltage.
Specifically, the transforming module 4 may correspondingly include transformers 41 corresponding to the connection ports one by one, and each transformer 41 is connected to one connection port and one current adjusting unit 22, so that the current adjusting unit 22 adjusts the output current ratio according to the power ratio of the output power of each adapter according to the control command of the current limiting control unit 21.
In addition, in the embodiment of the present invention, the first information about the adapter connected to the connection port, acquired by the controller 1, may further include a maximum power that the adapter can provide, and the controller 1 may also acquire a power of power that the electronic device currently needs to use, and when the controller 1 determines that the required power of the electronic device is greater than the maximum power that the adapter can provide, reducing the current power of the electronic device may be performed, for example, the operating frequency of the CPU may be reduced, and a part of the program may be turned off to reduce the required power of the electronic device.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the electronic device to which the data processing method described above is applied may refer to the corresponding description in the foregoing product embodiments, and details are not repeated herein.
The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the scope of the present invention is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present invention, and such modifications and equivalents should also be considered as falling within the scope of the present invention.
Claims (7)
1. An electronic device, comprising:
a plurality of connection ports;
a controller connected to each connection port and configured to acquire first information of output power of an adapter to which each connection port is connected, the first information including output power of the adapter;
the balance logic module comprises current adjusting parts respectively connected with the connecting ports correspondingly, and current limiting control parts respectively connected with the current adjusting parts and the controller, wherein the current limiting control parts are configured to determine the ratio of the output power of the adapter connected with the connecting ports according to first information of the adapter connected with the connecting ports transmitted by the controller, and respectively and correspondingly adjust the output current value of each current adjusting part according to the ratio, and the output power of each current adjusting part is output through a first output port;
a power supply module which is uniformly connected with each current adjusting part of the balance logic module through a first output port and executes charging operation and power supply operation of the electronic equipment based on output power output by the first output port;
the power detection module is configured to detect the output current value of each current regulation part and feed back the output current value to the current limiting control part;
under the condition that the voltage of the electric power output by each current adjusting part is different to generate voltage difference, the voltage value of the electric power output from the current adjusting parts is detected in real time through the electric power detection module, and when the voltage values are different, all the current adjusting parts are immediately turned off or the current adjusting parts with small voltage values are turned off;
the current regulating part comprises adjustable impedance components, and the current limiting control part correspondingly regulates the impedance value of each adjustable impedance component according to the inverse proportion of the output power ratio of the adapter connected with each connecting port;
the adjustable impedance component in the current adjusting part corresponding to one connection port comprises a first transistor and a second transistor which are connected in series and in reverse direction; the adjustable impedance component in the current adjusting part corresponding to one connection port comprises a third transistor and a fourth transistor which are connected in series and in reverse direction; the current limiting control part adjusts the impedance value of each transistor by adjusting the input current of the first terminal of the corresponding transistor;
a first terminal of the first transistor is connected to the current limit control unit, a second terminal of the first transistor is connected to a corresponding connection port, a third terminal of the first transistor is connected to a third terminal of the second transistor, a second terminal of the second transistor is connected to the power supply module, and a first terminal of the second transistor is connected to the current limit control unit; the first transistor and the second transistor are field effect transistors; wherein a first terminal of the first transistor is configured as a gate, a second terminal of the first transistor is a source, and a third terminal of the first transistor is a drain; the first terminal of the second transistor is configured as a gate, the second terminal of the second transistor is a source, and the third terminal of the second transistor is a drain.
2. The electronic device of claim 1, wherein the adjustable impedance component comprises a variable resistor.
3. The electronic device according to claim 1, wherein the current limit control unit is further configured to adjust the output current of each current adjustment unit based on a ratio of a current value fed back by the power detection module to the output power of the adapter connected to each connection port.
4. The electronic device according to claim 3, wherein the power detection module is further configured to detect a voltage value of the power output by each of the current adjustment sections,
the balance logic module further comprises a protection module which is connected with the power detection module and the current regulation parts and is configured to turn off each current regulation part or turn off the current regulation part with a small voltage value of the output power when the voltage values of the output power of each current regulation part are different.
5. The electronic apparatus according to claim 4, wherein first resistors are connected between the output side and the first output port of each of the current adjusting sections, respectively, and the power detecting section determines the voltage value of the output power of the current adjusting section by detecting the output voltage of each of the first resistors.
6. A power supply method applied to the electronic device according to any one of claims 1 to 5, and comprising:
the method comprises the steps that a controller obtains first information of output power of an adapter connected with each connecting port of electronic equipment, wherein the first information comprises the output power of the adapter;
the current limiting control part in the balance logic module determines the ratio of the output power of the adapter connected with each connecting port according to the first information of the adapter connected with each connecting port transmitted by the controller, and respectively and correspondingly adjusts the output current value of each current adjusting part in the balance logic module according to the ratio, and the output power of each current adjusting part is output through a first output port;
the power supply module performs a charging operation and a power supplying operation of the electronic device based on the output power output from the first output port.
7. The method of claim 6, wherein the method further comprises:
detecting the output current value of each current regulating part by using an electric power detection module, and feeding back the output current value to the current limiting control part;
the current limiting control part correspondingly adjusts the output current of each current adjusting part based on the ratio of the current value fed back by the power detection module and the ratio of the output power of the adapter connected with each connecting port.
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| CN109742462B (en) * | 2019-01-07 | 2021-08-06 | 东莞市华庄电子有限公司 | AGV automobile-used lithium ion battery management system |
| TWI760664B (en) | 2019-12-04 | 2022-04-11 | 華碩電腦股份有限公司 | Power allocating system, electronic device and adapter |
| CN113110887B (en) * | 2021-03-31 | 2023-07-21 | 联想(北京)有限公司 | Information processing method, device, electronic equipment and storage medium |
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| CN1790864A (en) * | 2004-12-13 | 2006-06-21 | 新巨企业股份有限公司 | Stand-by power supply with AC-DC power input |
| CN201774300U (en) * | 2010-07-26 | 2011-03-23 | 新巨企业股份有限公司 | Multi-power supply balance system |
| US10103574B2 (en) * | 2014-06-21 | 2018-10-16 | Microsoft Technology Licensing, Llc | Controlled concurrent utilization of multiple power supplies |
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