CN220190652U

CN220190652U - Power supply circuit, power output circuit and power supply equipment

Info

Publication number: CN220190652U
Application number: CN202320579800.8U
Authority: CN
Inventors: 韩晓健; 吴东; 陈熙; 王雷
Original assignee: Ecoflow Technology Ltd
Current assignee: Ecoflow Technology Ltd
Priority date: 2023-03-15
Filing date: 2023-03-15
Publication date: 2023-12-15
Anticipated expiration: 2033-03-15

Abstract

The utility model provides a power supply circuit, a power output circuit and a power supply device, wherein the power supply circuit comprises: the first voltage conversion circuit, the second voltage conversion circuit and the control circuit. The input end of the first voltage conversion circuit is used for being connected with a first output end of the power supply circuit and used for receiving first voltage, the input end of the second voltage conversion circuit is used for being connected with a second output end of the power supply circuit, the output end of the second voltage conversion circuit is used for being connected with a first power supply interface, and the second voltage conversion circuit is used for carrying out voltage conversion on second voltage output by the power supply circuit to obtain second output voltage. The control circuit is used for connecting the first power supply interface and also used for connecting a controlled end of the power supply circuit, and when detecting that the first power supply interface is not connected with external equipment, the control circuit outputs a turn-off instruction to the power supply circuit, and the turn-off instruction is used for indicating the power supply circuit to stop outputting the second voltage. The power supply circuit can reduce extra power consumption and improve energy conservation.

Description

Power supply circuit, power output circuit and power supply equipment

Technical Field

The present utility model relates to the field of power supply technologies, and in particular, to a power supply circuit, a power output circuit, and a power supply device.

Background

In the energy storage device, a Power Delivery (PD) module is provided. The PD module may provide functions such as a data display function and a user operation, for example, displaying information such as charging power, discharging power, current power, and the like. In the conventional art, the PD module is powered by an inverter module that provides different voltages for a plurality of functional modules in the PD module. The PD module can provide output interfaces with different specifications for external equipment to access. In practical applications of the PD module, it is found that there is additional power consumption of its power supply circuit.

Disclosure of Invention

The utility model mainly aims to provide a power supply circuit, a power output circuit and power equipment, and aims to solve the problem of high power consumption of the power supply circuit.

In a first aspect, the present utility model provides a power supply circuit comprising: a first voltage conversion circuit, a second voltage conversion circuit, and a control circuit;

the input end of the first voltage conversion circuit is used for being connected with a first output end of the power supply circuit, the output end of the first voltage conversion circuit is connected with the power supply end of the control circuit, and the first voltage conversion circuit is used for performing voltage conversion on a first voltage output by the power supply circuit to obtain a first output voltage and providing the first output voltage for the control circuit;

the input end of the second voltage conversion circuit is used for being connected with the second output end of the power supply circuit, the output end of the second voltage conversion circuit is used for being connected with a first power supply interface, and the first power supply interface is used for being connected with external equipment; the second voltage conversion circuit is used for performing voltage conversion on a second voltage output by the power supply circuit to obtain a second output voltage, and outputting the second output voltage to the first power supply interface;

the control circuit is used for connecting the first power supply interface to detect whether the first power supply interface is connected with external equipment or not; the control circuit is also used for connecting the controlled end of the power supply circuit, and outputting a turn-off instruction to the power supply circuit when detecting that the first power supply interface is not connected with external equipment, wherein the turn-off instruction is used for indicating the power supply circuit to stop outputting the second voltage.

In one embodiment, the control circuit includes a bit detection unit and a main control unit;

the input end of the in-place detection unit is used for being connected with the first power supply interface, the in-place detection unit outputs a first level signal when the first power supply interface is connected with external equipment, and the in-place detection unit also outputs a second level signal when the first power supply interface is not connected with the external equipment;

the input end of the main control unit is connected with the output end of the in-place detection unit, and the output end of the main control unit is connected with the controlled end of the power supply circuit; the main control unit is used for outputting the turn-off instruction to the power supply circuit when receiving the second level signal.

In one embodiment, the power supply circuit further comprises a control switch, and the control switch is connected with a controlled end of the control circuit;

the control switch is used for outputting a first control instruction or a second control instruction to the control circuit according to user operation; the first control instruction is used for instructing the control circuit to output the turn-off instruction to the power circuit, the second control instruction is used for instructing the control circuit to output the turn-on instruction to the power circuit, and the turn-on instruction is used for instructing the power circuit to output the second voltage.

In an embodiment, the power supply circuit further includes a wireless communication module, the wireless communication module is communicatively connected with the user equipment, and the wireless communication module is further connected with the control circuit;

the wireless communication module is used for receiving an energy-saving instruction sent by the user equipment, the energy-saving instruction is used for instructing the wireless communication module to output a third control instruction to the control circuit, and the third control instruction is used for instructing the control circuit to output the turn-off instruction to the power supply circuit.

In an embodiment, the second voltage conversion circuits are multiple, the first power supply interfaces are multiple, and each second voltage conversion circuit is connected with each first power supply interface in a one-to-one correspondence manner.

In an embodiment, the second voltage conversion circuit includes a switching tube unit and a filtering unit, the switching tube unit including a plurality of switching tubes; the input end of the switching tube unit is used for being connected with the second output end of the power supply circuit, the output end of the switching tube unit is connected with the first end of the filtering unit, and the second end of the filtering unit is used for being connected with the first power supply interface;

the control circuit is further connected with the controlled end of each switching tube, and is further used for outputting control signals to each switching tube according to preset demand parameters, and the control signals are used for controlling the switching tube units to perform voltage conversion on the second voltage output by the power supply circuit.

In a second aspect, an embodiment of the present utility model further provides a power output circuit, including:

the first power supply interface is used for connecting with external equipment;

the power supply circuit of any of the embodiments, connected to the first power supply interface.

In an embodiment, the power output circuit further includes a third voltage conversion circuit and a second power supply interface, an input end of the third voltage conversion circuit is connected with a second output end of the power supply circuit, an output end of the third voltage conversion circuit is connected with the second power supply interface, and the second power supply interface is further used for connecting with an external device; the third voltage conversion circuit is used for performing voltage conversion on the second voltage to obtain a third output voltage, and outputting the third output voltage to the second power supply interface;

the control circuit in the power supply circuit is also connected with the second power supply interface, and is further used for outputting a turn-off instruction to the power supply circuit when detecting that the first power supply interface and the second power supply interface are not connected with external equipment.

In an embodiment, the power output circuit further comprises a display control circuit and a display device; the input end of the display control circuit is connected with the first output end of the power supply circuit, and the output end of the display control circuit is connected with the display device;

the control circuit in the power supply circuit is also connected with the controlled end of the display control circuit, and is further used for outputting a data display instruction to the display control circuit according to the power supply output parameters of the first power supply interface and the second power supply interface, wherein the data display instruction is used for instructing the display control circuit to control the display device to display the power supply output parameters.

In a third aspect, an embodiment of the present utility model further provides a power supply apparatus, including:

the first output end of the power supply circuit is used for outputting a first voltage, and the second output end of the power supply circuit is used for outputting a second voltage;

the power output circuit of any of the embodiments, connected to a first output terminal and a second output terminal of the power supply circuit, capable of performing voltage conversion on the first voltage and the second voltage.

The embodiment of the utility model provides a power supply circuit, a power output circuit and power equipment. The input end of the first voltage conversion circuit is used for being connected with the first output end of the power supply circuit, and the output end of the first voltage conversion circuit is connected with the power supply end of the control circuit. The input end of the second voltage conversion circuit is used for being connected with the second output end of the power supply circuit, and the output end of the second voltage conversion circuit is used for being connected with the first power supply interface. The first voltage conversion circuit is used for performing voltage conversion on a first voltage output by the power circuit to obtain a first output voltage, and the second voltage conversion circuit is used for performing voltage conversion on a second voltage output by the power circuit to obtain a second output voltage. The control circuit is used for connecting the first power supply interface and also used for connecting a controlled end of the power supply circuit, and when detecting that the first power supply interface is not connected with external equipment, the control circuit outputs a turn-off instruction to the power supply circuit, and the turn-off instruction is used for indicating the power supply circuit to stop outputting the second voltage. When the embodiment of the utility model detects that the first power supply interface is not connected with external equipment, the power supply circuit is instructed to stop outputting the second voltage, and only the output of the first voltage is kept for supplying power to the control circuit, so that the extra power consumption generated when the first power supply interface is not connected with a load can be reduced, and the energy saving performance of the power supply circuit is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic circuit diagram of an implementation of a power supply circuit according to an embodiment of the present utility model;

FIG. 2 is a schematic circuit diagram of an embodiment of a first voltage conversion circuit according to the present utility model;

fig. 3 is a schematic circuit diagram of another implementation of the first voltage conversion circuit according to the embodiment of the present utility model;

FIG. 4 is a schematic circuit diagram of a second voltage converting circuit according to an embodiment of the present utility model;

fig. 5 is a schematic circuit diagram of another implementation of the second voltage conversion circuit according to the embodiment of the present utility model;

FIG. 6 is a schematic circuit diagram of an embodiment of a control circuit according to the present utility model;

FIG. 7 is a schematic diagram of a power supply circuit according to another embodiment of the present utility model;

FIG. 8 is a schematic diagram of a power output circuit according to an embodiment of the present utility model;

FIG. 9 is a schematic circuit diagram of another embodiment of a power output circuit according to an embodiment of the present utility model;

FIG. 10 is a schematic circuit diagram of a third voltage conversion circuit according to an embodiment of the present utility model;

FIG. 11 is a schematic circuit diagram of a power output circuit according to another embodiment of the present utility model;

FIG. 12 is a schematic circuit diagram of a display control circuit according to an embodiment of the present utility model;

fig. 13 is a schematic structural diagram of a power supply device according to an embodiment of the present utility model.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

It should be noted that the terms "first" and "second" in the description and claims of the present utility model and the accompanying drawings are used to distinguish similar objects, and are not used to describe a specific order or sequence.

It should be further noted that, in the method disclosed in the embodiment of the present utility model or the method shown in the flowchart, one or more steps for implementing the method are included, and the execution order of the steps may be interchanged with each other, where some steps may be deleted without departing from the scope of the claims.

At present, a Power Delivery (PD) module is disposed in the energy storage device, and in the use process of the PD module, because when the PD module does not receive the related operation, all the functional modules are working, and consume the electric energy of the inverter module, although the electric energy is smaller, additional Power consumption is still caused for the whole machine.

In order to solve the above-mentioned problems, an embodiment of the present utility model provides a power supply circuit, which is used for being connected between a power supply circuit and a first power supply interface, and the first power supply interface is used for being connected with an external device. The power supply circuit can detect whether the first power supply interface is connected with the external equipment or not, and when the first power supply interface is not connected with the external equipment, an off instruction is output to the power supply circuit, so that the power supply circuit is instructed to stop outputting the second voltage, the standby power consumption of the power supply circuit can be reduced, and the energy conservation performance of the power supply circuit is improved.

Some embodiments of the present utility model are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without conflict.

Referring to fig. 1, fig. 1 is a schematic circuit diagram of an embodiment of a power supply circuit according to the present utility model. As shown in fig. 1, the illustrated power supply circuit 100 includes a first voltage conversion circuit 110, a second voltage conversion circuit 120, and a control circuit 130.

The input end of the first voltage conversion circuit 110 is used for being connected with the first output end of the power circuit 10, and the output end of the first voltage conversion circuit 110 is connected with the power supply end of the control circuit 130. The first voltage conversion circuit 110 is configured to perform voltage conversion on the first voltage output by the power supply circuit 10 to obtain a first output voltage, and provide the first output voltage to the control circuit 130. The first output voltage is used to provide power to the control circuit 130, and the voltage value of the first output voltage may be the operating voltage value of the control circuit 130.

The input end of the second voltage conversion circuit 120 is used for being connected with the second output end of the power supply circuit 10, the output end of the second voltage conversion circuit 120 is used for being connected with the first power supply interface 20, and the first power supply interface 20 is used for being connected with external equipment. The second voltage conversion circuit 120 is configured to perform voltage conversion on the second voltage output by the power supply circuit 10 to obtain a second output voltage, and output the second output voltage to the first power supply interface 20. The second output voltage is used to supply power to the first power supply interface 20, and the second output voltage can be output to an external device through the first power supply interface 20.

By way of example, the power supply circuit 10 may include, but is not limited to, a circuit module such as a dc power supply, a rectifying circuit, a voltage regulating circuit (e.g., an inverter circuit, a dc-ac converting circuit), etc., and the power supply circuit 10 may be capable of providing the power supply circuit 100 with the first voltage, for example, 12V, and the second voltage, for example, 24V. The first power supply interface 20 may be one or more, and power supply parameters of the first power supply interface 20 may be the same or different, for example, the first power supply interface 20 may include an anderson ADS interface and a CAR charge CAR interface, where voltages and currents provided by the ADS interface and the CAR interface are different. The external device may consume the electric power outputted through the power supply circuit 100, and the external device may include, but is not limited to, an outdoor air conditioner, a vehicle-mounted refrigerator, a mower, and the like.

The control circuit 130 is configured to connect to the first power supply interface 20 to detect whether the first power supply interface 20 is connected to an external device. The control circuit 130 is further configured to connect to a controlled end of the power circuit 10, where the control circuit 130 outputs a shutdown instruction to the power circuit 10 when detecting that the first power supply interface 20 is not connected to an external device, and the shutdown instruction is configured to instruct the power circuit 10 to stop outputting the second voltage.

When detecting that the first power supply interface 20 is not connected to an external device, the control circuit 130 instructs the power supply circuit 10 to stop outputting the second voltage by outputting a turn-off command, so that the power supply circuit 10 is turned off and outputs the second voltage to the power supply circuit of the first power supply interface 20 through the second voltage conversion circuit 120, and the second voltage conversion circuit 120 in the power supply circuit 100 stops operating and only keeps outputting the first voltage to supply power to the control circuit, thereby reducing the additional power consumption of the power supply circuit 100 and improving the energy saving performance of the power supply circuit 100.

In an embodiment, as shown in fig. 2, the first voltage conversion circuit 110 includes a first voltage conversion unit 111 and a second voltage conversion unit 112, where an input terminal of the first voltage conversion unit 111 is used as an input terminal of the first voltage conversion circuit 110, and is used for receiving the first voltage output by the power supply circuit 10. The input end of the second voltage conversion unit 112 is connected to the output end of the first voltage conversion unit 111, and the output end of the second voltage conversion unit 112 serves as the output end of the first voltage conversion circuit 110 and is connected to the power supply end of the control circuit 130.

The first voltage conversion unit 111 is configured to perform a first-stage voltage conversion on a first voltage output by the power circuit 10, and the second voltage conversion unit 112 is configured to perform a second-stage voltage conversion on an input voltage, so as to obtain a first output voltage. The gradation voltage conversion of the first voltage can be achieved by the first voltage converting unit 111 and the second voltage converting unit 112, thereby improving stability and accuracy of converting the first voltage into the first output voltage.

As illustrated in fig. 3, the first voltage conversion circuit 110 includes a first voltage conversion unit 111 and a second voltage conversion unit 112, the first voltage conversion unit 111 includes a BUCK chip (BUCK chip), and the second voltage conversion unit includes an LDO chip (low drop out voltage regulator chip). The power circuit 10 outputs a first voltage of 12V to the BUCK chip, the BUCK chip converts the first voltage to 5V, and the LDO chip converts the voltage of 5V to a first output voltage of 3.3V, and outputs the first output voltage of 3.3V to the power supply terminal of the control circuit 130.

In an embodiment, as shown in fig. 4, the second voltage conversion circuit 120 includes a switching tube unit 121 and a filtering unit 122, and the switching tube unit 121 may include a plurality of switching tubes. The input end of the switching tube unit 121 is used for being connected with the second output end of the power circuit 10, the output end of the switching tube unit 121 is connected with the first end of the filtering unit 122, and the second end of the filtering unit 122 is used for being connected with the first power supply interface 20. It should be noted that, through the plurality of switching transistors in the switching transistor unit 121, the second voltage output by the power supply circuit 10 can be voltage-converted, and the second voltage after voltage conversion can be voltage-stabilized and filtered through the filtering unit 122, and the second output voltage is output, so that the second output voltage is more stable.

In an embodiment, the first power supply interfaces 20 may be provided in plural, the second voltage conversion circuits 120 may be provided in plural ways, and each of the second voltage conversion circuits 120 is connected to each of the first power supply interfaces 20 in a one-to-one correspondence. The voltage conversion circuit 120 can convert the second voltage output by the power supply circuit 10 into different voltage, so that the power supply circuit 100 can access external devices with different specifications by outputting electrical signals with different power supply parameters through the corresponding connected first power supply interfaces 20, and the applicability of the power supply circuit 100 is improved.

As illustrated in fig. 4 and 5, the first power supply interface 20 includes a CAR interface 21 and an ADS interface 22, and the second voltage conversion circuit 120 includes a first path voltage conversion circuit and a second path voltage conversion circuit. The p+/P-output in the second output end XT90 of the power supply circuit 10 is a 24V supply voltage, and the first path voltage conversion circuit includes a first switching tube unit 1211 and a first filtering unit 1221, where the first switching tube unit 1211 includes two switching tubes Q1 and Q8 connected in series, and the first filtering unit 1221 includes an inductance L1 and capacitances C1 and C2. The first end of the inductor L1 is connected to the midpoint of the switching tubes Q1 and Q8, the second end of the inductor L1 is used for connecting the CAR interface 21, one end of the two capacitors C1 and C2 connected in parallel is connected to the second end of the inductor L1, and the other end is grounded. The second voltage conversion circuit includes a second switching tube unit 1212 and a second filter unit 1222, where the second switching tube unit 1212 includes four switching tubes Q3, Q4, Q5, and Q6, the switching tubes Q3 and Q5 are connected in parallel, and the switching tubes Q4 and Q6 are connected in parallel, and the switching tubes Q3 and Q4 are connected in series. The second filter unit 1222 includes an inductor L2 and four capacitors C3, C4, C5, and C6 connected in parallel, the inductor L2 is connected between the midpoint of the switching transistors Q3 and Q4 and the ADS interface 22, one end of the four capacitors C3, C4, C5, and C6 is connected to the inductor L2, and the other end is grounded.

In an embodiment, the control circuit 130 is further connected to the controlled end of each switching tube in the switching tube unit 121, and the control circuit 130 is configured to output a control signal to each switching tube according to a preset requirement parameter, where the control signal is configured to control the switching tube unit 121 to perform voltage conversion on the second voltage output by the power circuit 10. The preset demand parameter may be determined according to a power supply parameter set at the first power supply interface 20, for example, the preset demand parameter is a voltage of 6V, and the control circuit 130 may generate a corresponding control signal according to the preset demand parameter, so as to control the plurality of switching tubes in the switching tube unit 121, for example, control the on and off of the plurality of switching tubes, so that the second voltage conversion circuit 120 may accurately output the second output voltage that meets the preset demand parameter.

For example, as shown in fig. 5, the control circuit 130 may control the switching transistors Q1-Q6 to be turned on and off, so as to convert the 24V supply voltage, and then output different voltages and currents to the corresponding CAR interface 21 and ADS interface 22, where it should be noted that the voltages and currents output by the CAR interface 21 and ADS interface 22 may be rated, and the frequency at which the control circuit 130 controls the switching transistors Q1-Q6 may also be rated.

In one embodiment, as shown in FIG. 6, the control circuit 130 includes a bit detection unit 131 and a main control unit 132. The input end of the in-place detecting unit 131 is used for being connected with the first power supply interface 20, the in-place detecting unit 131 outputs a first level signal when the first power supply interface 20 is connected with an external device, and the in-place detecting unit 131 also outputs a second level signal when the first power supply interface 20 is not connected with the external device.

Wherein, the input end of the main control unit 132 is connected with the output end of the in-situ detection unit 131, and the output end of the main control unit 132 is connected with the controlled end of the power circuit 10; the main control unit 132 is configured to output a shutdown instruction to the power supply circuit 10 when receiving the second level signal, where the shutdown instruction is configured to instruct the power supply circuit 10 to stop outputting the second voltage.

It should be noted that, the in-place detecting unit 131 may include, for example, a switching tube, which may be turned on or off when the first power supply interface 20 is connected to an external device, so as to output the second level signal to the main control unit 132. The in-place detection unit 131 can accurately detect whether the first power supply interface 20 is connected with an external device, so that the main control unit 132 can accurately output a turn-off instruction to the power supply circuit 10 when the first power supply interface 20 is not connected with the external device, and accurately instruct the power supply circuit 10 to stop outputting the second voltage, so that the second voltage conversion circuit 120 in the power supply circuit 100 stops working, and the second voltage conversion circuit 120 is prevented from continuously converting the second voltage and outputting the second output voltage to the first power supply interface 20, thereby reducing standby power consumption of the power supply circuit 100.

In one embodiment, the power supply circuit 100 further includes a control switch, and the control switch is connected to the controlled end of the control circuit 130. The control switch is used for outputting a first control instruction or a second control instruction to the control circuit 130 according to a user operation. The first control instruction is used for instructing the control circuit 130 to output an off instruction to the power circuit 10, and the second control instruction is used for instructing the control circuit 130 to output an on instruction to the power circuit 10. The off command is used for instructing the power circuit 10 to stop outputting the second voltage, and the on command is used for instructing the power circuit 10 to output the second voltage. By providing the control switch, the user can easily control the power supply circuit 10 to output or stop outputting the second voltage by outputting the first control command or the second control command to the control circuit 130.

For example, when the user confirms that the first power supply interface 20 is not connected to an external device, the control switch may be controlled by the user operation, so that the control circuit 130 outputs a turn-off instruction to the power supply circuit 10, thereby accurately instructing the power supply circuit 10 to stop outputting the second voltage, and reducing the standby power consumption of the power supply circuit 100. The user may also control the control switch through the user operation when confirming that the first power supply interface 20 is connected or ready to be connected to an external device, so that the control circuit 130 outputs a conducting instruction to the power supply circuit 10, thereby accurately indicating the power supply circuit 10 to output the second voltage, and ensuring that the power supply circuit 100 can normally supply power to the external device.

In one embodiment, the power supply circuit 100 further includes a wireless communication module, which is communicatively connected to the user device, and is further connected to the control circuit 130. The wireless communication module is configured to receive an energy saving instruction sent by the user equipment, where the energy saving instruction is configured to instruct the wireless communication module to output a third control instruction to the control circuit 130, and the third control instruction is configured to instruct the control circuit 130 to output a turn-off instruction to the power circuit 10, so that the power circuit 10 is accurately instructed to stop outputting the second voltage, and standby power consumption of the power supply circuit 100 can be reduced.

It should be noted that the wireless communication module may be communicatively connected to the user equipment, so as to implement data interaction with the user equipment. When the wireless communication module receives the energy saving instruction sent by the user equipment, a third control instruction is output to the control circuit 130, so that the control circuit 130 is instructed to output a turn-off instruction to the power circuit 10, and the power circuit 10 is accurately instructed to stop outputting the second voltage, so that the standby power consumption of the power supply circuit 100 can be reduced.

As shown in fig. 7, the power supply circuit 100 further includes a wireless communication module 140, where the wireless communication module 140 is, for example, an internet of things IOT (Internet of Things), and the control circuit 130 is, for example, a control unit MCU. The power supply end of the wireless communication module 140 is connected to the output end of the first voltage conversion circuit 110, and the power supply end of the control circuit 130 is also connected to the output end of the first voltage conversion circuit 110. Specifically, the first voltage conversion circuit 110 includes a first voltage conversion unit 111 and a second voltage conversion unit 112, the first voltage conversion unit 111 includes a BUCK chip, and the second voltage conversion unit 112 includes an LDO chip. The power circuit 10 outputs a first voltage of 12V to the BUCK chip, the BUCK chip converts the first voltage into 5V, the LDO chip converts the voltage of 5V into a first output voltage of 3.3V, and the first output voltage of 3.3V is output to power supply ends of the MCU and the IOT, so that power supply to the MCU and the IOT is accurately realized.

The power supply circuit 100 of the above embodiment includes the first voltage conversion circuit 110, the second voltage conversion circuit 120, and the control circuit 130. The input end of the first voltage conversion circuit 110 is used for being connected with the first output end of the power circuit 10, and the output end of the first voltage conversion circuit 110 is connected with the power supply end of the control circuit 130. An input terminal of the second voltage conversion circuit 120 is connected to a second output terminal of the power supply circuit 10, and an output terminal of the second voltage conversion circuit 120 is connected to the first power supply interface 20. The control circuit 130 is configured to connect to the first power supply interface 20 and is further configured to connect to a controlled end of the power supply circuit 10, and when the control circuit 130 detects that the first power supply interface 20 is not connected to an external device, the control circuit 130 outputs a shutdown instruction to the power supply circuit 10, where the shutdown instruction is used to instruct the power supply circuit 10 to stop outputting the second voltage, so that the power supply circuit 10 is turned off and outputted to the power supply circuit of the first power supply interface 20 through the second voltage conversion circuit 120, so that the second voltage conversion circuit 120 in the power supply circuit 100 stops working, thereby reducing additional power consumption of the power supply circuit 100 and improving energy saving performance of the power supply circuit 100.

Referring to fig. 8, fig. 8 is a schematic circuit diagram of a power output circuit according to an embodiment of the utility model.

As shown in fig. 8, the power output circuit 200 includes a first power supply interface 210 and a power supply circuit 220. The power supply circuit 220 is connected to the first power supply interface 210.

The first power supply interface 210 is further configured to connect to an external device, and the first power supply interface 210 may be the first power supply interface 20 of the foregoing embodiment. As the first power interface 210 may include an anderson ADS interface and a CAR charge CAR interface. When the first power supply interface 210 is plural, power supply parameters of different first power supply interfaces 210 may be the same or different, for example, output voltages and output currents provided by the ADS interface and the CAR interface may be different, so as to be capable of meeting power supply requirements of different external devices.

The power supply circuit 220 is further configured to be connected to a first output terminal and a second output terminal of the power supply circuit 10, where the first output terminal of the power supply circuit 10 is configured to output a first voltage, and the second output terminal of the power supply circuit 10 is configured to output a second voltage. The power supply circuit 220 may be the power supply circuit 100 of the above-described embodiment. The power supply circuit 220 can be connected between the power supply circuit 10 and the first power supply interface 210, and the power supply circuit 220 can detect whether the first power supply interface 210 is connected with an external device, and output a turn-off instruction to the power supply circuit 10 when the first power supply interface 210 is not connected with the external device, so as to instruct the power supply circuit 10 to stop outputting the second voltage, and stop the second voltage conversion circuit in the power supply circuit 220, so that standby power consumption of the power supply circuit 220 can be reduced, and energy saving performance of the power supply circuit can be improved.

In an embodiment, as shown in fig. 9, the power output circuit 200 further includes a third voltage conversion circuit 230 and a second power supply interface 240. An input terminal of the third voltage conversion circuit 230 is connected to the second output terminal of the power circuit 10, and is configured to receive the second voltage; the output terminal of the third voltage conversion circuit 230 is connected to the second power supply interface 240, and the second power supply interface 240 is further used for connecting to an external device. The third voltage conversion circuit 230 is configured to perform voltage conversion on the second voltage to obtain a third output voltage, and output the third output voltage to the second power supply interface 240.

The second power supply interface 240 may be one or more, and the second power supply interface 240 may include different interface TYPEs, e.g., the second power supply interface 240 may include a TYPE-C interface, a USB interface, etc. One or more third voltage conversion circuits 230 may be provided, and the number of the third voltage conversion circuits 230 may be the same as or different from the number of the second power supply interfaces 240, i.e. when the number of the third voltage conversion circuits 230 is several, several second power supply interfaces 240 may be correspondingly provided according to actual situations.

It should be noted that, when the number of the second power supply interfaces 240 is plural, the third output voltages output by the respective connected third voltage conversion circuits 230 may be the same or different, so that the power supply parameters provided by different second power supply interfaces 240 may be the same or different, and the user may access the second power supply interfaces 240 by using the corresponding data lines to obtain the corresponding power supply voltages or power supplies.

For example, as shown in FIG. 10, the second power supply interfaces 240 are four, including two power supply interfaces TypeC-1, typeC-2 of the TypeC specification, and two power supply interfaces USBA-1, USBA-2 of the USBA specification. The third voltage conversion circuit 230 is three-way and includes two third voltage conversion circuits 230 composed of a BUCK circuit and a protocol chip, and one third voltage conversion circuit 230 including a BUCK circuit. The p+/P-of the output terminal XT30 may be the first output terminal of the power supply circuit 10, or may be an output terminal of a first voltage conversion circuit of the power supply circuit 220, such as an output terminal of a first voltage conversion unit or a second voltage conversion unit of the first voltage conversion circuit. The third voltage conversion circuits 230 can output electrical signals with different power supply parameters for the corresponding connected second power supply interfaces TypeC-1, typeC-2, USBA-1 and USBA-2, so that the power output circuit 200 can be connected into external devices with different specifications, and the applicability of the power output circuit 200 is improved.

In an embodiment, the control circuit in the power supply circuit 220 may be further connected to the second power supply interface 240, where the control circuit is further configured to output a shutdown instruction to the power supply circuit 10 when detecting that neither the first power supply interface 210 nor the second power supply interface 240 is connected to an external device, where the shutdown instruction is used to instruct the power supply circuit 10 to stop outputting the second voltage. In the embodiment of the present utility model, when detecting that neither the first power supply interface 210 nor the second power supply interface 240 is connected to an external device, the power supply circuit 10 is instructed to stop outputting the second voltage, so that the power supply circuit 10 is turned off and outputs the second voltage to the power supply circuit of the first power supply interface 210 through the second voltage conversion circuit, so that the second voltage conversion circuit in the power supply circuit 220 stops working, thereby reducing the additional power consumption of the power supply circuit 220 and improving the energy saving performance of the power output circuit 200.

In addition, the first power supply interface 210 and the second power supply interface 240 in the power output circuit 200 can meet various power supply requirements, including, but not limited to, power supply interfaces of ADS, CAR, TYPE-C, USB and other specifications, and can stop outputting the voltage of the second voltage, such as 24V, when there is no related consumption (no external device is connected to the first power supply interface 210 and the second power supply interface 240, and no power supplied by the power supply circuit 10 is consumed at this time), so as to reduce the power consumption of the power output circuit 200.

In one embodiment, as shown in fig. 11, the power output circuit 200 further includes a display control circuit 250 and a display device 260; an input terminal of the display control circuit 250 is connected to a first output terminal of the power supply circuit 10, and an output terminal of the display control circuit 250 is connected to the display device 260. The control circuit in the power supply circuit 220 is further connected to the controlled end of the display control circuit 250, and the control circuit is further configured to output a data display instruction to the display control circuit 250 according to the power supply output parameters of the first power supply interface 210 and the second power supply interface 240, where the data display instruction is used to instruct the display control circuit 250 to control the display device 260 to display the power supply output parameters. The power supply output parameters include information such as charging power, discharging power, current electric quantity, etc., and the display device 260 is, for example, a display screen, such as an LED display screen, an LCD display screen, etc.

As shown in fig. 12, the display control circuit 250 includes a resistor R1, a resistor R2, a capacitor C7, a switching tube Q7, and a resistor R3, and the display control circuit 250 is configured to convert a first voltage of 12V and supply power to the display device 260. The led_on is a data display instruction output by a control circuit in the power supply circuit 220 to the display control circuit 250, so as to instruct the display control circuit 250 to control the display device 260 to display a power supply output parameter, where the led_on is connected to one end of a resistor R1 in the display control circuit 250, the other end of the resistor R1 is connected to a controlled end of a switching tube Q7, a first end of the switching tube Q7 is grounded, and a second end of the switching tube Q7 is connected to a first voltage, such as 12V, through a resistor R3. The resistor R2 is connected in parallel with the capacitor C7, and the resistor R1, the resistor R2 and the capacitor C7 are used for performing voltage stabilizing filtering on the data display instruction output by the control circuit in the power supply circuit 220, so that the data display instruction is more stable.

In an embodiment, the power output circuit 200 may include a power strip and a power output PD board, the power supply circuit may be integrated with the power strip, and the third voltage conversion circuit 230 and the second power supply interface 240 may be integrated with the power output PD board. The power output circuit 200 may further include a display control Key board, where the Key board is a control board of the display device 260, and the display control circuit 250 may be integrated on the Key board.

It should be noted that, KEYs and light emitting diodes may be set in the power panel, the PD panel and the KEY panel, and when the power panel, the PD panel or the KEY is in a working state, the KEYs are pressed to be in a conducting state, and the light emitting diodes are turned on, so as to indicate that the power panel, the PD panel or the KEY is in a working state.

Referring to fig. 13, fig. 13 is a schematic structural diagram of a power supply device according to an embodiment of the utility model.

As shown in fig. 13, the power supply apparatus 300 includes a power supply circuit 310 and a power output circuit 320.

Wherein, the first output terminal of the power circuit 310 is used for outputting a first voltage, and the second output terminal of the power circuit 310 is used for outputting a second voltage; the power output circuit 320 is connected to the first output terminal and the second output terminal of the power circuit 310, and is capable of performing voltage conversion on the first voltage and the second voltage.

It should be noted that, the power circuit 310 may include, but is not limited to, a circuit module including a dc power source, a rectifying circuit, a voltage regulating circuit (e.g., an inverter circuit, a dc-ac converting circuit), etc., and the power circuit 310 is capable of providing the first voltage and the second voltage to the power output circuit 320.

For example, the power device 300 may be an energy storage device, which may include one or more electrical energy storage units, such as one or more batteries, and a plurality of batteries may be connected in series-parallel to form a battery module.

In an embodiment, the power supply circuit 310 may be the power supply circuit 10 of the above embodiment, and the power output circuit 320 may be the power output circuit 200 of the above embodiment. It can be appreciated that the beneficial effects of the power supply device 300 provided in the embodiment of the present utility model can refer to the beneficial effects of the power supply circuit 100 and the power output circuit 200 provided in the corresponding embodiments, and are not described herein.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims

1. A power supply circuit, the power supply circuit comprising: a first voltage conversion circuit, a second voltage conversion circuit, and a control circuit;

2. The power supply circuit of claim 1, wherein the control circuit comprises a bit detection unit and a main control unit;

3. The power supply circuit of claim 1, further comprising a control switch connected to a controlled end of the control circuit;

4. The power supply circuit of claim 1, further comprising a wireless communication module communicatively coupled to the user device, the wireless communication module further coupled to the control circuit;

5. The power supply circuit according to claim 1, wherein the second voltage conversion circuits are multiple, the first power supply interfaces are multiple, and each second voltage conversion circuit is connected to each first power supply interface in a one-to-one correspondence.

6. The power supply circuit according to any one of claims 1 to 5, wherein the second voltage conversion circuit includes a switching tube unit including a plurality of switching tubes and a filter unit; the input end of the switching tube unit is used for being connected with the second output end of the power supply circuit, the output end of the switching tube unit is connected with the first end of the filtering unit, and the second end of the filtering unit is used for being connected with the first power supply interface;

7. A power output circuit, comprising:

the power supply circuit of any one of claims 1-6, connected to the first power supply interface.

8. The power output circuit of claim 7, further comprising a third voltage conversion circuit having an input connected to a second output of the power supply circuit and a second power supply interface having an output connected to the second power supply interface, the second power supply interface further configured to connect to an external device; the third voltage conversion circuit is used for performing voltage conversion on the second voltage to obtain a third output voltage, and outputting the third output voltage to the second power supply interface;

9. The power output circuit of claim 7, further comprising a display control circuit and a display device; the input end of the display control circuit is connected with the first output end of the power supply circuit, and the output end of the display control circuit is connected with the display device;

10. A power supply apparatus, characterized by comprising:

a power output circuit as claimed in any one of claims 7 to 9, connected to first and second output terminals of the power supply circuit, and capable of voltage converting the first and second voltages.