CN108123519B - Power supply switching equipment, control method and device thereof and power supply system - Google Patents
Power supply switching equipment, control method and device thereof and power supply system Download PDFInfo
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- CN108123519B CN108123519B CN201810001236.5A CN201810001236A CN108123519B CN 108123519 B CN108123519 B CN 108123519B CN 201810001236 A CN201810001236 A CN 201810001236A CN 108123519 B CN108123519 B CN 108123519B
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Abstract
The application provides a power supply switching device and a control method, a device and a power supply system thereof, wherein a power supply interface directly connected with a power supply is arranged, the power supply adapter connected with an electronic device is used for monitoring that the current demand voltage of the electronic device is obtained after the power supply adapter is connected with the electronic device in practical application, and according to the current demand voltage, the power supply voltage output by the power supply interface is controlled to supply power for the electronic device, so that the power consumption demand of the electronic device is met, and the technical problem that the power supply interface is not matched with the power supply interface of the electronic device is solved.
Description
Technical Field
The application mainly relates to the field of mobile power supply application, in particular to power supply switching equipment, a control method and a control device thereof and a power supply system.
Background
Nowadays, for convenience of customers can both use electronic equipment under various environment, can be equipped with portable power source usually, like this, need be outdoor or other do not have the environment of indoor power supply under for electronic equipment power supply at the user, guarantee that electronic equipment normally works, can directly be supplied power for electronic equipment by portable power source, it is very convenient and practical.
However, with the diversification of the types of power interfaces of electronic devices, the power interfaces of the existing mobile power supplies cannot support the power interfaces of some electronic devices, that is, many of the existing mobile power supplies have compatibility problems.
Disclosure of Invention
In view of this, the invention provides a power supply switching device, a control method and a control device thereof, and a power supply system, and flexible power supply of electronic equipment with incompatible power interfaces is realized through the power supply switching device.
In order to achieve the above object, the present application provides the following technical solutions:
a control method of a power switching device comprises the following steps:
monitoring that a power adapter of the power switching equipment is connected with electronic equipment;
acquiring the current required voltage of the electronic equipment;
and controlling the power supply voltage output by the power supply interface of the power supply switching equipment to supply power to the electronic equipment according to the acquired current required voltage.
Preferably, the controlling, according to the obtained current required voltage, the power supply voltage output by the power supply interface of the power supply switching device to supply power to the electronic device includes:
determining that the current required voltage is less than the power supply voltage output by the power supply interface of the power supply switching equipment, adjusting the power supply voltage by a voltage adjusting circuit, and supplying power to the electronic equipment by using the adjusted voltage;
and determining that the current required voltage is equal to the power supply voltage output by the power supply interface of the power supply switching equipment, and controlling the power supply voltage to directly supply power to the electronic equipment.
Preferably, the method further comprises the following steps:
monitoring that a power adapter of the power interface switching equipment is not connected with the electronic equipment;
and controlling the power interface to be disconnected with the power adapter.
A power switching apparatus comprising: the power supply comprises a power supply interface, a power supply adapter, a logic control circuit, a first switch circuit and a second switch circuit;
the first end of the power interface is connected with a power supply, the second end of the power interface is connected with the first input end of the power adapter through the first switch circuit, and the second end of the power interface is respectively connected with the power supply port of the logic control circuit and the grounding end of the power adapter through the second switch circuit;
when the power adapter is connected with the electronic equipment, the second switch circuit is conducted, and the power voltage output by the power interface supplies power to the logic control circuit;
the detection end of the logic control circuit is connected with the identification end of the power adapter, the first control end is connected with the first switch circuit, the power adapter is connected with the electronic equipment, and based on the acquired current required voltage of the electronic equipment, the power voltage output by the power interface is utilized as the power supply of the electronic equipment.
Preferably, the apparatus further comprises a voltage adjustment circuit and a third switching circuit;
the first end of the voltage adjusting circuit is connected with the power interface through the second switch circuit, the second end of the voltage adjusting circuit is directly connected with the power interface, the third end of the voltage adjusting circuit is connected with the second control end of the logic control circuit, and the output end of the voltage adjusting circuit is connected with the first input end of the power adapter and the connecting line of the first switch circuit through the third switch circuit;
when the logic control circuit determines that the current required voltage of the electronic equipment is smaller than the power supply voltage, the first switch circuit is controlled to be switched off, the voltage adjusting circuit adjusts the power supply voltage, and the adjusted voltage is used for supplying power to the electronic equipment through the switched-on third switch circuit and the power adapter.
Preferably, the logic control circuit determines that the current required voltage of the electronic device is equal to the power supply voltage output by the power supply interface, and controls the first switch circuit to be switched on, so that the power supply interface is communicated with the power supply adapter.
Preferably, the first and second liquid crystal materials are,
when the power adapter is not connected with the electronic equipment, the second switch circuit is disconnected.
Preferably, the apparatus further comprises an impedance circuit;
one end of the second switch circuit, which is not connected with the power interface, is grounded through the impedance circuit;
the ungrounded end of the impedance circuit is connected to the first end of the voltage regulation circuit.
A control apparatus for a power switching device, the apparatus comprising:
the monitoring module is used for monitoring that a power adapter of the power adapter equipment is connected with electronic equipment;
the acquisition module is used for acquiring the current required voltage of the electronic equipment;
and the control module is used for controlling the power supply voltage output by the power supply interface of the power supply switching equipment to supply power to the electronic equipment according to the acquired current required voltage.
A power supply system, the power supply system comprising: a power supply apparatus and a power switching apparatus as described above.
Therefore, compared with the prior art, the power supply switching equipment and the control method and device thereof are provided, the power supply interface directly connected with the power supply is arranged, the power supply adapter connected with the electronic equipment is arranged, in practical application, after the power supply adapter is monitored to be connected with the electronic equipment, the current required voltage of the electronic equipment is obtained, the power supply voltage output by the power supply interface is controlled to supply power to the electronic equipment according to the current required voltage, the power consumption requirement of the electronic equipment is met, and the technical problem that the power supply interface is not matched with the power supply interface of the electronic equipment is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a flowchart of a control method of a power adapter device according to an embodiment of the present disclosure;
fig. 2 is a flowchart of another control method for a power adapter according to an embodiment of the present disclosure;
fig. 3 is a structural diagram of a power adapter provided in an embodiment of the present application;
fig. 4 is a block diagram of another power adapter provided in an embodiment of the present application;
fig. 5 is a circuit structure diagram of another power supply adapter device provided in the embodiment of the present application;
fig. 6 is a schematic view of an application scenario of a power adapter device according to an embodiment of the present application;
fig. 7 is a structural diagram of a control device of a power adapter according to an embodiment of the present disclosure;
fig. 8 is a structural diagram of a control device of another power supply switching device according to an embodiment of the present application;
fig. 9 is a structural diagram of a power supply system according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The application provides a power supply switching device and a control method and device thereof, wherein a power supply interface directly connected with a power supply is arranged, the power supply adapter connected with electronic equipment is used for monitoring that the power supply adapter is connected with the electronic equipment in practical application, then the current required voltage of the electronic equipment is obtained, and according to the current required voltage, the power supply voltage output by the power supply interface is controlled to supply power for the electronic equipment, so that the power consumption requirement of the electronic equipment is met, and the technical problem that the power supply interface is not matched with the power supply interface of the electronic equipment is solved.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Referring to fig. 1, a flowchart of a method for controlling a power switching device provided in an embodiment of the present application may include:
step S101, monitoring that a power adapter of power adapter equipment is connected with electronic equipment;
in practical application of the embodiment of the application, the interface of the electronic device and the interface of the power adapter are not universal, that is, the charging interface of the electronic device has compatibility with some types of power adapters, which brings great inconvenience to charging of the electronic device in some scenes.
In order to solve the above problems, power adapter devices with different interface conversion functions are usually used at present to realize the connection between the incompatible electronic device charging interface and the power adapter interface, thereby completing the charging of the electronic device.
The power supply switching equipment can generally comprise a power supply interface matched with a charging interface of the electronic equipment and a power supply adapter unmatched with the charging interface, and the power supply adapter can be connected with power supply equipment of another interface type, so that power supply equipment incompatible with the electronic equipment can supply power to the electronic equipment through the power supply switching equipment.
In order to meet the power supply requirements of different electronic devices, the power supply adapter can provide required voltage for different electronic devices, and therefore the power supply adapter of the power supply adapter device can be monitored, whether the current power supply adapter is connected with the electronic device or not can be determined according to the high and low levels output by the power supply adapter, but the power supply adapter is not limited to the monitoring mode for determining whether the power supply adapter is connected with the electronic device or not.
In practical application, because power source in the power switching equipment can be connected with the power, after the power adapter is connected with the electronic equipment, the power will form a path with the electronic equipment through the power switching equipment, therefore, the application can determine whether the power adapter is connected with the electronic equipment or not by monitoring whether the power adapter has output signals and other modes, and the application is not detailed herein one by one.
Step S102, acquiring the current required voltage of the electronic equipment;
for electronic devices of different product types and different models, the preset charging voltage requirements are usually different, so that in order to meet the charging requirements of different electronic devices, the current required voltage, namely the current charging voltage, of the electronic device currently connected with the power supply switching device can be obtained in the embodiment of the application. The preset charging voltage requirement may be an operating voltage of the electronic device, a charging voltage of an energy storage battery (or other mobile power sources), or an input voltage required by a voltage conversion circuit in the electronic device, and may be specifically determined according to a product type of the electronic device.
And step S103, controlling the power supply voltage output by the power supply interface of the power supply switching equipment to supply power to the electronic equipment according to the acquired current required voltage.
Optionally, in this embodiment of the application, because the power supply voltage output by the power interface of the power supply adapter device is usually fixed, in order to meet the power supply requirement of the electronic device, the power supply adapter device may have a voltage adjustment function, so that, for different current required voltages, the power supply voltage output by the power interface is converted to obtain a voltage that is the same as the current required voltage, and the voltage is input to the electronic device. The present application is not limited to the method for converting the power supply voltage by the power supply switching device.
Wherein, if the current demand voltage of electronic equipment is mains voltage's the condition, the mains voltage that can control power source interface output passes through power adapter and directly supplies power for electronic equipment, satisfies this electronic equipment's the demand of charging, guarantees electronic equipment's reliable work.
Therefore, the power adapter can be used for connecting the electronic equipment with the unmatched power interface, the technical problem that the power interface is unmatched with the power supply interface of the electronic equipment is solved, meanwhile, the power voltage output by the power interface can be flexibly adjusted according to the actual demand voltage of the electronic equipment, the power demand of the electronic equipment is met, and the practicability and the convenience of the power adapter equipment are enhanced.
Referring to fig. 2, a flowchart of another control method for a power supply switching device provided in an embodiment of the present application is shown, where this embodiment describes in detail a voltage adjustment scheme for electronic devices with different power consumption requirements, and specifically may include the following steps:
step S201, monitoring an output signal of a power adapter of power adapter equipment;
the output signal of the power adapter can be a voltage signal, a current signal and the like, which is not limited in the application, and can be determined according to the method for judging whether the power adapter is connected with the electronic device or not adopted in the embodiment.
Step S202, determining whether the power adapter is connected to the electronic device based on the monitored output signal, if so, entering step S203, and if not, executing step S207.
Step S203, acquiring the current required voltage of the electronic equipment and the power supply voltage output by the power supply interface of the power supply switching equipment;
in the embodiment of the present application, the power voltage output by the power interface of the power adapter device is usually fixed after determining the power supply, and may be stored in the power adapter device in advance, or may be directly collected and stored after the power adapter device is connected to the power supply and the electronic device.
In addition, in practical application, when the power supply switching equipment is connected with different power supplies, the power supply voltage output by the power supply interface can be correspondingly changed, and the specific numerical value of the power supply voltage is not limited in the application.
Step S204, comparing the current demand voltage with a power supply voltage;
step S205, determining that the current required voltage is less than the power supply voltage, performing voltage reduction processing on the power supply voltage, and supplying power to the electronic equipment by using the voltage subjected to voltage reduction processing;
in this embodiment practical application, if the required supply voltage of electronic equipment is less than mains voltage, can carry out step-down to mains voltage, obtain electronic equipment's current demand voltage and carry to electronic equipment, satisfy electronic equipment's power consumption demand.
Therefore, the power supply switching device in the embodiment of the present application may include a voltage adjustment circuit to implement voltage reduction processing on the input voltage of the power supply switching device, so as to obtain the power supply voltage required by the electronic device.
Optionally, in this application practical application, if the comparison result shows that the current required voltage of electronic equipment is greater than power supply voltage, the voltage regulating circuit in the power switching equipment can also boost the received power supply voltage, and then send the voltage after the boost processing to the power adapter, thereby satisfying the power demand of electronic equipment, and the specific boost processing process is not detailed.
Step S206, determining that the current required voltage is equal to the power supply voltage, and controlling the power supply voltage to directly supply power to the electronic equipment;
in this embodiment, when determining that supply voltage need not to handle and can directly be the power supply for electronic equipment, can control power supply switching equipment's power source and power adapter intercommunication to make supply voltage can reach electronic equipment through power source, power adapter, thereby satisfy electronic equipment's power consumption demand.
Therefore, under the condition, the voltage adjusting circuit in the power supply switching equipment is not required to participate in work, and at the moment, the voltage adjusting circuit can be short-circuited, so that the power consumption is reduced, and the power consumption requirement of the electronic equipment is met.
And step S207, controlling the power interface in the power supply switching equipment to be disconnected with the power supply adapter.
In practical application, if the power supply switching equipment is not connected with the electronic equipment, the power supply switching equipment can control the disconnection of a passage between a power supply interface and a power supply adapter in the power supply switching equipment, so that an electronic element in the power supply switching equipment does not work any more, the power consumption of the power supply switching equipment can be ignored at the moment, and the electric energy is saved.
Based on the above description of the control scheme of the power supply adapter device provided in the present application, the present application takes an electronic device, such as a PC (personal computer) device, as an example, and a charging interface of the PC is a type-C interface, while an interface of the power supply device is a conventional USB interface, and for this case, a power supply interface of the power supply adapter device of the present application is a USB interface, and a power supply adapter is a type-C interface, but the structure of the power supply adapter device is not limited thereto, and a power supply adapter device including different types of power supply adapters and power supply connectors may be determined according to market requirements, and the present embodiment only takes a USB interface and a type-C interface as an example for description. The type-C interface is a connection interface of the USB interface, can be inserted without dividing the front side and the back side, and the power supply equipment can comprise a power supply adapter for connecting a power supply and a power supply connection wire.
As mentioned above, since the USB interface of the power supply device cannot directly charge the PC device with the type-C charging interface, when the PC device needs to be charged, the USB interface of the power supply device can be connected with the power interface of the power supply adapter device, and the power adapter of the power supply adapter device is connected with the charging interface of the PC device, the power supply adapter device determines that the power adapter is connected with the PC device, and can obtain the current required voltage of the PC device, for example, can send an obtaining instruction to the PC device, so that the PC device sends the required voltage of the PC device, namely the charging voltage to the power supply adapter device, so that the power supply adapter device compares the required voltage with the power supply voltage, if the power supply voltage is greater than the required voltage of the PC device, the power supply adapter device can step down the power supply voltage until the required voltage is equal to the required voltage of the PC device, and send the processed voltage to the PC device, the power consumption requirement of the PC equipment is met. If the power supply voltage is equal to the required voltage of the PC equipment, the power supply voltage can directly supply power to the PC equipment, so that the power consumption requirements of electronic equipment with different charging voltages are met.
For example, if the power supply device is a 20V regulated power supply, the voltage adjusting circuit of the power switching device may adjust 20V voltage to obtain any voltage between 5V and 18V and corresponding current, and based on the above description, if the PC device needs 12V charging voltage, the 20V voltage output by the power interface of the power switching device may be subjected to voltage reduction processing by the voltage adjusting circuit to obtain 12V voltage, and then the voltage is sent to the PC device through the power adapter, so as to meet the power consumption requirement of the PC device, and ensure reliable and stable operation of the PC device. If the PC equipment needs 20V charging voltage, the power interface in the power switching equipment can be controlled to be directly communicated with the power adapter, so that the 20V voltage output by the power interface can directly supply power for the PC equipment through the power adapter, and the power adapter is very convenient and practical.
Optionally, the voltage regulator in the power supply switching device may set several fixed voltage gears according to market research, and still, for example, the 20V power supply may set fixed gear voltages of 5V, 9V, 12V, and 15V, in this case, an appropriate voltage gear may be selected according to a current required voltage of the PC device, but the present invention is not limited to this implementation.
When the power supply switching equipment is not connected with the PC equipment, the power supply interface of the power supply switching equipment and the power supply adapter can be disconnected, so that the power supply switching equipment cannot be powered on, power consumption caused by power-on of electronic elements of the power supply switching equipment is avoided, and electric energy is saved.
Referring to fig. 3, for a structure diagram of a power supply switching device provided in an embodiment of the present application, the power supply switching device may include: power source 31, power adapter 32, logic control circuit 33, first switch circuit 34 and second switch circuit 35, wherein:
first terminal A of power interface 3131A second terminal B connected to a power supply VCC and a power supply interface 3131Through the first switch circuit 34 and the first input terminal a of the power adapter 3232Is connected to and the second terminal B of the power interface 3131The power supply ports S of the logic control circuit 33 are respectively connected with the second switch circuit 3533And the ground end GND of the power adapter 32;
when the power adapter 32 is connected to the electronic device, the second switch circuit 35 is turned on, and the power voltage output by the power interface 31 supplies power to the logic control circuit 33;
detection terminal C of logic control circuit 3333Connected with the identification terminal CC of the power adapter 32, a first control terminal A33And the first switch circuit 34 is connected to detect that the power adapter 32 is connected to the electronic device, and based on the acquired current required voltage of the electronic device, the power supply voltage output by the power interface 31 is used for supplying power to the electronic device.
In practical application of the embodiment, a signal output from one ground terminal of the power adapter is used as a control signal to control the on/off of the second switch circuit 35, specifically, if the power adapter is connected to an electronic device, the voltage of the ground terminal GND of the power adapter 35 will be close to zero, and it can be seen that the ground terminal GND will change from a high level to a low level, because the second port B of the second switch circuit 35 is connected to the electronic device35Connected to the ground terminal GND of the power adapter 32, the second switch circuit 35 detects the second port B35This level change (i.e. the level change of the ground terminal GND) can control itself to form a path, i.e. the second switch circuit 35 is turned on, so that the power voltage outputted from the power interface 31 passes through the second port B thereof31And a first port A of the second switching circuit 3535And a detection terminal C35To power the logic control circuit 33.
Then, the logic control circuit 33 is powered on to enter the working state, and can pass through the detection terminal C33The identification end CC to power adapter 32 detects, confirms the electronic equipment that power adapter 32 connected this moment to acquire this electronic equipment's current demand voltage, the voltage that charges promptly, thereby based on this electronic equipment's current demand voltage, utilize the mains voltage of power interface 31 output, for this electronic equipment power supply through power adapter 32, satisfy this electronic equipment's power consumption demand.
Alternatively, in the case of determining that the charging voltage of the electronic device is equal to the power supply voltage, the logic control circuit 33 may pass through the first control terminal a thereof in conjunction with the power supply line indicated by the arrow in fig. 333The control of the first switch circuit 34 is realized, and at this time, the first switch circuit 34 can be controlled to be turned on, so that the logic control circuit 33 and the second switch circuit 35 are short-circuited, and the power supply voltage output by the power interface 31 directly reaches the power adapter 32 through the first switch circuit 34 to supply power to the currently connected electronic device.
The ground GND of the power adapter 32 is at a high level when the electronic device is not connected to the power adapter 32 of the power adapter, at this time, the second switch circuit 35 is turned off, and the logic control circuit 33 is no longer powered, the logic control circuit 33 is in an off state, and the first switch circuit 34 is maintained in a default off state, so that the power voltage output by the power interface is no longer powered by any electronic element, thereby greatly reducing the passband of the electronic element but not charging the electronic device, and causing unnecessary loss.
Therefore, in the embodiment of the application, under the condition that the charging interface of the electronic equipment is not matched with the power interface model of the power supply equipment and the power supply equipment cannot directly supply power to the electronic equipment, the power supply switching equipment is connected between the power supply equipment and the electronic equipment, and the power adapter in the power supply switching equipment is specifically used for being connected with the charging interface of the electronic equipment, so that the power consumption requirement of the electronic equipment is met, and the technical problem that the power supply interface is not matched with the power supply interface of the electronic equipment is solved.
Referring to fig. 4, another structure diagram of the power adapter device provided in this embodiment of the present application is provided, in this embodiment, a voltage adjusting circuit 36 and a third switch circuit 37 are added on the basis of the above embodiment, so that the power adapter device has a voltage adjusting function, thereby meeting the power consumption requirements of electronic devices with different charging voltages, where regarding other circuit compositions and connection relationships of the power adapter device, reference may be made to the description of the corresponding parts of the embodiment in fig. 3, and this embodiment is not described again here.
As shown in FIG. 4, the first port A of the voltage regulating circuit 3636Connected to the power supply interface 31 via a second switching circuit 35, a second port B36Directly connected to the power supply interface 31, and a third port C36Second control terminal B of AND logic control circuit 3333Connected, output terminal Q36Through the third switch circuit 37 and the first input terminal a of the power adapter 3232And the connection line of the first switching circuit 34.
With reference to the above description of the embodiment, when the power adapter 32 is connected to the electronic device, the second switch circuit 35 is turned on to supply power to the logic control circuit 33, so as to enable the logic control circuit 33 to communicate with the electronic device through the identification terminal CC of the power adapter, and obtain the current required voltage of the electronic device, during which the power voltage output by the power interface 31 can directly supply power to the voltage adjusting circuit 36.
When the logic control circuit 33 determines that the current required voltage of the electronic device is smaller than the power supply voltage, the logic control circuit 33 may notify the current required voltage of the electronic device (which may also include parameters such as the current required current of the electronic device as needed) to the voltage adjusting circuit 36, in this case, the third switching circuit 37 may be triggered to be turned on, and the first switching circuit 34 may be controlled to be turned off, so that the power supply interface 31 may not directly provide the power supply voltage for the power supply adapter 32, but the voltage adjusting circuit 36 adjusts the power supply voltage, and the adjusted voltage is sent to the electronic device through the turned-on third switching circuit 37 and the power supply adapter 32, thereby satisfying the power consumption requirement of the electronic device.
When the logic control circuit 33 determines that the current required voltage of the electronic device is equal to the power supply voltage, the logic control circuit 33 may control the first switch circuit 34 to be turned on, as described in the corresponding part of the above embodiment, at this time, the power supply voltage output by the power interface 31 is directly transmitted to the power adapter through the first switch circuit 34 to supply power to the electronic device.
Optionally, in order to reduce power consumption, the third switching circuit 37 may be controlled to be open, so that the voltage adjusting circuit 36 may not participate in operation, and power consumption caused by electronic components in the voltage adjusting circuit 36 and the third switching circuit 37 is reduced.
In addition, under the condition that the power adapter is not connected with the electronic equipment, the electronic equipment does not need to be charged any more, at this moment, in order to reduce power consumption, the second switch circuit 35 in the power adapter equipment of the present application is in an off state, the logic control circuit 33 stops working, the first switch circuit 34 is maintained in the off state, and the third switch circuit 37 is controlled to be in the off state, so that each electronic component in the power adapter equipment does not work any more, and the loss generated by the power adapter equipment under the condition is greatly reduced.
Therefore, in the embodiment of the application, under the condition that the charging voltage required by the electronic equipment connected with the power adapter is equal to the power supply voltage, the power supply voltage can directly supply power to the electronic equipment; under the required charging voltage of the electronic equipment that power adapter connects is not equal to mains voltage's the condition, this application embodiment can utilize voltage regulating circuit to adjust mains voltage, obtains the required charging voltage of electronic equipment, has satisfied different electronic equipment's various charging voltage demands, has improved power switching equipment's flexibility and practicality.
Alternatively, in each of the above embodiments, the end of the second switch circuit 35 not connected to the power interface 31 is grounded via an impedance circuit, and the ungrounded end of the impedance circuit is connected to the first end of the voltage adjustment circuit 36. Therefore, the impedance circuit can perform a voltage division function to control the voltage adjusting circuit 36, and the specific circuit structure of the impedance circuit is not limited in the present application.
Based on the above description of the structure of the power switching device in the embodiments, in order to more clearly illustrate the power switching device, the present application takes a specific circuit structure of the power switching device as an example, but is not limited to the scheme described in the embodiments, and the circuit connection structures of the parts in the power switching device can be adaptively adjusted according to actual needs, which all belong to the protection scope of the present application, and the embodiments of the present application are not described in detail herein.
Referring to fig. 5, a circuit structure diagram of a power supply switching device according to an embodiment of the present disclosure is provided, where each switch circuit in the power supply switching device may include a switch and a corresponding trigger circuit, a voltage adjusting circuit may be a buck \ boost circuit (buck \ boost conversion circuit), a logic control circuit may be a CC logic chip, and a power adapter may be a type-C interface.
In conjunction with the above description, as shown in fig. 5, the power interface may be connected with the first input terminal a of the type-C interface through the first switch K132The power interface can also be directly connected with the buck/boost circuit so as to supply power to the buck/boost circuit when the buck/boost circuit participates in working, and the power interface can also be connected with the first port A of the buck/boost circuit through the second switch K236Connected so that the buck/boost circuit is coupled to the first port A36The input voltage is subjected to buck/boost processing to obtain the charging voltage required by the electronic equipment. Optionally, in order to improve the reliability of the circuit, a unidirectional conducting diode may be disposed between the power interface and the second switch.
Wherein, the second switch K2 and the first port A of the buck/boost circuit36The connected end may also be grounded through an impedance circuit, as shown in fig. 5, the end may be grounded through a first resistor R1 and a second resistor R2, and an enable port of the buck \ boost circuit may be connected to a common end of the first resistor R1 and the second resistor R2, in this embodiment, the first resistor R1 and the second resistor R2 may serve as voltage dividing resistors, and interface to the power supplyThe power voltage transmitted by the second switch K2 is subjected to voltage division processing, and the divided voltage of the second resistor R2 is used as the input voltage of the enabling port of the buck/boost circuit, so that the working condition of the buck/boost circuit is controlled.
In addition, the control terminal of the first switch K1 may be connected to the first control terminal a of the CC logic chip33A detection terminal C of the CC logic chip33Connected with the identification terminal CC of the type-C interface, and a second control terminal B33And a third port C of the buck/boost circuit36Connected to the output Q of the buck/boost circuit36The third switch K3 is connected to the first switch K1 and the connection line of the type-C interface, and the ground GND of the type-C interface is connected to the control terminal of the second switch K2.
Based on the circuit structure, when the type-C interface is not connected with the corresponding type-C device (namely, the electronic device with the type-C type charging interface), the ground terminal GND of the type-C interface is pulled high, and the second switch K2 can be triggered to be in an off state. The control of the on/off state of the second switch K2 may be preset, and is not limited to the manner of opening when the control terminal is at the high level described in the present embodiment.
If the type-C interface is connected with the corresponding type-C equipment, the grounding end GND of the type-C interface is pulled down, the second switch K2 enters a closed conducting state, and therefore the power voltage output by the power interface is sent to the buck \ boost circuit and the CC logic chip.
After the buck \ boost circuit and the CC logic chip start to supply power, the CC logic chip is responsible for communicating with an identification end, namely a CC pin, of a type-C interface, data interaction with type-C equipment is achieved, the current required voltage of the type-C equipment can be obtained specifically, meanwhile, a third switch K3 is closed and conducted, the buck \ boost circuit can adjust the received input voltage, the voltage in a default state is output, if the power voltage is 20V, the buck \ boost circuit outputs 5V voltage in a default mode. In this case, the first switch is controlled by the CC logic chip and remains in a default state, i.e., an off state.
In practical application, the CC logic chip can know parameters such as current required voltage and current of the type-C device through communication with the type-C device, and can obtain the parameters through the second control end B of the type-C device33And sending the voltage to a buck/boost circuit, so that the buck/boost circuit adjusts the output voltage and current of the buck/boost circuit based on the current required voltage, current and other parameters of the type-C equipment, taking 20V power voltage as an example, at the moment, any voltage between 5V and 18V and corresponding current can be obtained through voltage adjustment, and the power consumption requirements of different types of type-C equipment are met.
If the CC logic chip is communicated with the type-C equipment, the current required voltage of the type-C equipment is determined to be the power supply voltage, the first switch K1 can be directly controlled to be closed to enter a conducting state, and therefore the power supply voltage output by the power supply interface is directly transmitted to the type-C interface to supply power for the type-C equipment. Meanwhile, the third switch K3 can be switched off, so that the power supply voltage is prevented from flowing backwards to the buck/boost circuit, unnecessary power consumption is avoided, and even the reliable operation of the type-C device is influenced.
Optionally, corresponding logic circuits may be provided for the first switch K1, the second switch K2, and the third switch K3 in the foregoing embodiments, so that on and off of the corresponding switches are controlled by the logic circuits, and the specific structure of the logic circuits is not limited in this application.
In addition, each switch circuit can comprise a contact switch, a control switch, a limit switch and the like, and can also be a relay, a breaker and the like.
As another embodiment of the present application, in the circuit structure of the power switching device, the voltage adjusting circuit is not limited to the buck \ boost circuit shown in fig. 5, and the voltage adjusting circuit may be replaced by a common voltage adjusting circuit, such as a buck circuit implemented in a PWM (Pulse Width Modulation) manner, so that the voltage adjusting circuit outputs a voltage at a fixed gear, and the PWM buck circuit can be used to output fixed voltages of 5V, 9V, 12V, and the like, taking a power voltage of 20V as an example.
It should be noted that, in order to reduce the cost, the present application may also adopt a voltage adjustment circuit with another structure, and the present application does not limit the specific circuit structure of the voltage adjustment circuit, and can adjust the power supply voltage, and the circuit structure that obtains the voltage required by the electronic device all belongs to the protection scope of the present application, and the present application is not described in detail herein.
In addition, the type and structure of the power adapter described in the foregoing embodiments of the present application are not limited to the type-C interface described in the foregoing embodiments, and may specifically be determined according to the type of the charging interface of the electronic device to be charged, and when necessary, the power adapter may include a plurality of power adapters, and the type and structure of the plurality of power adapters may be different, so that the power adapter may be applicable to charging of more electronic devices incompatible with the power interface, and the practicability of the power adapter is improved. The operation principle of each power adapter is similar to the process described in the above embodiments, and the detailed description of the present application is omitted here.
For the Logic control chip in the embodiment of the present application, the Logic control chip may also be correspondingly changed according to a structural change of the power adapter, for example, when the Logic control chip is a type-C interface, the Logic control chip may be a CC Logic chip (CC Logic chip) which is determined according to Logic detection and control of a CC pin in the type-C interface, and in practical applications, a CC pin is usually also provided at a charging interface of the type-C device, so that it may be determined whether the type-C interface is connected to the type-C device by performing plug detection on the CC pin, and communication with the type-C device may also be realized through the pin.
In summary, in the embodiment of the present application, when an electronic device with incompatible power interfaces needs to be charged, the type of the charging interface of the electronic device may be determined first, and then a power adapter device with a power adapter of the same type as the charging interface is selected to be connected between a power supply and the electronic device, so as to supply power to the electronic device.
Moreover, the power supply switching equipment can also perform voltage reduction/voltage boosting treatment on the received power supply voltage according to the current required voltage of the connected electronic equipment, flexibly meets the power consumption requirements of different electronic equipment, greatly improves the practicability and flexibility of the power supply switching equipment, and enables the power supply switching equipment to have a wider market.
In combination with the above analysis on the composition structure of the power supply adapter device, in practical application of the present application, as shown in fig. 6, the power supply adapter device may be directly connected to an external power supply, that is, the power supply interface of the power supply adapter device may be a plug, which may be directly plugged into an external power socket, so as to supply power to the electronic device connected to the power supply adapter.
Of course, the power interface of the power adapter device may also be connected to a power device, and the power device is connected to an external power source, which may specifically refer to the following description of the power supply system, and this embodiment is not described in detail here.
Referring to fig. 7, a block diagram of a control apparatus of a power switching device provided in an embodiment of the present application may include
The monitoring module 71 is used for monitoring that a power adapter of the power adapter is connected with electronic equipment;
in practical application, the charging interface of the electronic equipment is the same as the power adapter in type, and the charging interface and the power adapter can be connected in a matching mode.
An obtaining module 72, configured to obtain a current required voltage of the electronic device;
and the control module 73 is configured to control the power supply voltage output by the power supply interface of the power supply adapter device to supply power to the electronic device according to the acquired current required voltage.
Optionally, in practical applications of the present application, as shown in fig. 8, the control module 73 may include:
the voltage adjusting unit 731 is configured to determine that a current required voltage of the electronic device is smaller than a power supply voltage output by the power supply interface of the power supply switching device, and the voltage adjusting circuit adjusts the power supply voltage and supplies power to the electronic device by using the adjusted voltage;
the first control unit 732 is configured to determine that a current required voltage of the electronic device is equal to a power supply voltage output by the power interface of the power adapter, and control the power supply voltage to directly supply power to the electronic device.
As another embodiment of the present application, on the basis of the above embodiment, as shown in fig. 8, the control module includes:
the second control unit 733 is configured to control the power interface to be disconnected from the power adapter when it is monitored that the power adapter of the power interface switching device is not connected to the electronic device.
To sum up, this application embodiment can utilize power adapter to connect the unmatched electronic equipment of power source, has solved the unmatched technical problem of power source and electronic equipment's power supply interface, simultaneously, can also be according to this electronic equipment's actual demand voltage, the power supply voltage of nimble adjustment power source output satisfies electronic equipment's power consumption demand, has strengthened power switching equipment's practicality, convenience.
As shown in fig. 9, a block diagram of a power supply system provided in an embodiment of the present application may include a power supply device 91 and a power supply adapter device 92;
the configuration structure and the working principle of the power supply switching device may refer to the description of the above embodiment of the power supply switching device to supply power to the electronic device 93 incompatible with the power supply device, and the configuration structure of the power supply switching device is not described herein again in this embodiment.
The power supply equipment can comprise a power adapter and a power connecting wire, a power interface of the power connecting wire is matched with a power interface of the power switching equipment, plugging and unplugging can be achieved, and the specific type is not limited.
Therefore, in practical application of this embodiment, a plug of the power adapter may be connected to an external power source, and one end of the plug is connected to the power adapter device through a power connection line.
Optionally, the power supply device may also include an energy storage battery (or other mobile power source) and a power connection line, where the energy storage battery is connected to the power interface of the power adapter device through the power connection line, so as to supply power to the electronic device connected to the power adapter of the power adapter device, thereby meeting the power consumption requirement of the electronic device.
As another embodiment of the present application, the power supply device may also be an external power supply, and at this time, the power supply adapter device may be directly connected to the power supply device through a power interface (such as a plug/socket), or may be connected to the power supply device through a power connection line by the power interface of the power supply adapter device, and the like.
In summary, when the electronic device with the incompatible power interface needs to be charged, the power supply switching device with the power adapter with the compatible power interface of the electronic device can be selected, so that the power supply can supply power to the electronic device through the power supply switching device, and for the electronic devices with different voltage requirements, the power supply switching device can also adjust the power supply voltage, so that the corresponding voltage requirements are met, and the practicability and flexibility of the power supply switching device are improved.
Finally, it should be noted that, in the embodiments, relational terms such as first, second and the like may be used solely to distinguish one operation, unit or module from another operation, unit or module without necessarily requiring or implying any actual such relationship or order between such units, operations or modules. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method or system that comprises the element.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the device disclosed by the embodiment, the description is relatively simple because the device corresponds to the method disclosed by the embodiment, and the relevant part can be referred to the method part for description.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. The control method of the power supply switching equipment is characterized in that the power supply switching equipment comprises a power supply interface, a power supply adapter, a logic control circuit, a first switch circuit and a second switch circuit; the voltage regulator circuit also comprises a voltage regulating circuit and a third switch circuit; the method comprises the following steps:
when the power adapter is connected with electronic equipment, the second switch circuit is conducted, and power voltage output by the power interface supplies power to the logic control circuit, so that when the logic control circuit monitors that the power adapter of the power adapter is connected with the electronic equipment, based on the acquired current required voltage of the electronic equipment, when the current required voltage is determined to be not equal to the power voltage, the first switch circuit is controlled to be disconnected, the voltage adjusting circuit adjusts the power voltage, and the adjusted voltage is used for supplying power to the electronic equipment through the conducted third switch circuit and the power adapter; when the current required voltage is determined to be equal to the power supply voltage, controlling the first switch circuit to be conducted, so that the power supply interface is communicated with the power supply adapter, and the power supply voltage directly supplies power to the electronic equipment;
the first end of the power interface is connected with a power supply, the second end of the power interface is connected with the first input end of the power adapter through the first switch circuit, and the second end of the power interface is respectively connected with the power supply port of the logic control circuit and the grounding end of the power adapter through the second switch circuit;
the first end of the voltage adjusting circuit is connected with the power interface through the second switch circuit, the second end of the voltage adjusting circuit is directly connected with the power interface, the third end of the voltage adjusting circuit is connected with the second control end of the logic control circuit, and the output end of the voltage adjusting circuit is connected with the first input end of the power adapter and the connecting line of the first switch circuit through the third switch circuit;
the detection end of the logic control circuit is connected with the identification end of the power adapter, and the first control end is connected with the first switch circuit.
2. The method of claim 1, further comprising:
monitoring that a power adapter of the power switching equipment is not connected with electronic equipment;
and controlling the power interface to be disconnected with the power adapter.
3. A power switching apparatus, comprising: the power supply comprises a power supply interface, a power supply adapter, a logic control circuit, a first switch circuit and a second switch circuit; the voltage regulator circuit also comprises a voltage regulating circuit and a third switch circuit;
the first end of the power interface is connected with a power supply, the second end of the power interface is connected with the first input end of the power adapter through the first switch circuit, and the second end of the power interface is respectively connected with the power supply port of the logic control circuit and the grounding end of the power adapter through the second switch circuit;
when the power adapter is connected with the electronic equipment, the second switch circuit is conducted, and the power voltage output by the power interface supplies power to the logic control circuit;
the first end of the voltage adjusting circuit is connected with the power interface through the second switch circuit, the second end of the voltage adjusting circuit is directly connected with the power interface, the third end of the voltage adjusting circuit is connected with the second control end of the logic control circuit, and the output end of the voltage adjusting circuit is connected with the first input end of the power adapter and the connecting line of the first switch circuit through the third switch circuit;
the detection end of the logic control circuit is connected with the identification end of the power adapter, the first control end is connected with the first switch circuit, the connection of the power adapter and the electronic equipment is detected, based on the acquired current required voltage of the electronic equipment, when the current required voltage is determined not to be equal to the power voltage, the first switch circuit is controlled to be disconnected, the voltage adjustment circuit adjusts the power voltage, and the adjusted voltage is used for supplying power to the electronic equipment through the conducted third switch circuit and the power adapter;
and when the current required voltage is determined to be equal to the power supply voltage output by the power supply interface, controlling the first switch circuit to be switched on, so that the power supply interface is communicated with the power supply adapter.
4. The power switching device of claim 3,
when the power adapter is not connected with the electronic equipment, the second switch circuit is disconnected.
5. The power switching device of claim 3, further comprising an impedance circuit;
one end of the second switch circuit, which is not connected with the power interface, is grounded through the impedance circuit;
the ungrounded end of the impedance circuit is connected to the first end of the voltage regulation circuit.
6. The control device of the power supply switching equipment is characterized in that the power supply switching equipment comprises a power supply interface, a power supply adapter, a logic control circuit, a first switch circuit and a second switch circuit; the voltage regulator circuit also comprises a voltage regulating circuit and a third switch circuit; when the power adapter is connected with the electronic equipment, the second switch circuit is conducted, and the power voltage output by the power interface supplies power to the logic control circuit; the device comprises:
the monitoring module is used for monitoring that the power adapter of the power adapter equipment is connected with the electronic equipment through the logic control circuit;
the acquisition module is used for acquiring the current required voltage of the electronic equipment through the logic control circuit;
the control module is used for controlling the first switch circuit to be switched off when the logic control circuit determines that the current required voltage is not equal to the power supply voltage, the voltage adjusting circuit adjusts the power supply voltage, and the adjusted voltage is used for supplying power to the electronic equipment; when the current required voltage is determined to be equal to the power supply voltage, controlling the first switch circuit to be conducted, so that the power supply interface is communicated with the power supply adapter, and the power supply voltage directly supplies power to the electronic equipment;
the first end of the power interface is connected with a power supply, the second end of the power interface is connected with the first input end of the power adapter through the first switch circuit, and the second end of the power interface is respectively connected with the power supply port of the logic control circuit and the grounding end of the power adapter through the second switch circuit;
the first end of the voltage adjusting circuit is connected with the power interface through the second switch circuit, the second end of the voltage adjusting circuit is directly connected with the power interface, the third end of the voltage adjusting circuit is connected with the second control end of the logic control circuit, and the output end of the voltage adjusting circuit is connected with the first input end of the power adapter and the connecting line of the first switch circuit through the third switch circuit;
the detection end of the logic control circuit is connected with the identification end of the power adapter, and the first control end is connected with the first switch circuit.
7. A power supply system, characterized in that the power supply system comprises: a power supply apparatus and a power switching apparatus as claimed in any one of claims 3 to 5.
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| CN201810001236.5A CN108123519B (en) | 2018-01-02 | 2018-01-02 | Power supply switching equipment, control method and device thereof and power supply system |
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| CN201810001236.5A CN108123519B (en) | 2018-01-02 | 2018-01-02 | Power supply switching equipment, control method and device thereof and power supply system |
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| WO2020062138A1 (en) * | 2018-09-29 | 2020-04-02 | Oppo广东移动通信有限公司 | Adapter testing apparatus and method, and computer storage medium |
| CN109713527A (en) * | 2018-12-26 | 2019-05-03 | 与德科技有限公司 | A kind of electrifying method of socket, plug and electrical equipment |
| CN110162497A (en) * | 2019-04-15 | 2019-08-23 | 深圳市普威技术有限公司 | Interconnecting device, adapting system, host system and the terminal system of data-interface |
| CN110492717A (en) * | 2019-07-01 | 2019-11-22 | 联想(北京)有限公司 | A kind of processing equipment and processing method |
| CN110336353A (en) * | 2019-07-09 | 2019-10-15 | Oppo广东移动通信有限公司 | Battery, circuit system and its control method, electronic equipment |
| CN110601326A (en) * | 2019-09-27 | 2019-12-20 | 深圳市绿联科技有限公司 | Double-path intelligent quick-charging adaptive device and charging management method thereof |
| WO2021217316A1 (en) * | 2020-04-26 | 2021-11-04 | 深圳市大疆创新科技有限公司 | Charging control circuit, charging box, and charging system |
| CN111756069A (en) * | 2020-07-15 | 2020-10-09 | 珠海格力电器股份有限公司 | Light storage converter, control method and device thereof and computer readable storage medium |
| CN112421601A (en) * | 2020-10-20 | 2021-02-26 | 安克创新科技股份有限公司 | Circuit for interface switching equipment and interface switching equipment |
| CN112765081A (en) * | 2021-01-26 | 2021-05-07 | 维沃移动通信有限公司 | Interface control method and device and electronic equipment |
| CN115207997A (en) * | 2021-04-14 | 2022-10-18 | 舜宇光学（浙江）研究院有限公司 | Power supply system, control method and power supply equipment |
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