CN216290352U - Power supply circuit, power supply device and load - Google Patents
Power supply circuit, power supply device and load Download PDFInfo
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- CN216290352U CN216290352U CN202121155950.3U CN202121155950U CN216290352U CN 216290352 U CN216290352 U CN 216290352U CN 202121155950 U CN202121155950 U CN 202121155950U CN 216290352 U CN216290352 U CN 216290352U
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Abstract
The application discloses a power supply circuit, a power supply device and a load. The power supply circuit includes: the voltage division circuit and the master control circuit; the voltage division circuit comprises a first voltage division resistor and a second voltage division resistor, wherein the first end and the second end of the first voltage division resistor are respectively and electrically connected with the anode and the cathode of an external power supply; one end of the second voltage-dividing resistor is grounded, the other end of the second voltage-dividing resistor is electrically connected with the first end of the first voltage-dividing resistor, and the second end of the first voltage-dividing resistor is used for outputting a power supply with preset voltage; the main control circuit is electrically connected with the first end of the first voltage-dividing resistor, and the main control circuit enables the second end of the first voltage-dividing resistor to output different power supply voltages by adjusting the potential between the first voltage-dividing resistor and the second voltage-dividing resistor. Through the scheme, the power supply circuit can provide power signals with various different voltages, so that the applicability of the power supply circuit is improved.
Description
Technical Field
The application belongs to the technical field of intelligent household electrical appliances, and particularly relates to a power supply circuit, a power supply device and a load.
Background
At present, wireless power supply is applied only in a single way, and the most important application is wireless charging of batteries of terminals such as mobile phones and wireless power supply of heating devices such as induction cookers, so that the heating devices can heat. The wireless power supply mainly comprises an inverter circuit, a coupling coil and a power supply, wherein the inverter circuit converts a power supply into a high-frequency alternating current power supply, then the high-frequency alternating current power supply is connected with the coupling coil, and energy transfer between two different coupling coils is realized through the electromagnetic coupling effect, so that the wireless power supply is realized.
An existing wireless power supply product generally includes a wireless power supply device and a load corresponding to the wireless power supply device, and the load is generally intelligently matched with a specific wireless power supply device.
Disclosure of Invention
The present application provides a power supply circuit, a power supply device and a load, so as to solve the above technical problems.
In order to solve the technical problem, the application adopts a technical scheme that: there is provided a power supply circuit for a wireless power supply device, the power supply circuit comprising:
the voltage division circuit comprises a first voltage division resistor and a second voltage division resistor, wherein the first end and the second end of the first voltage division resistor are respectively and electrically connected with the positive electrode and the negative electrode of an external power supply; one end of the second voltage-dividing resistor is grounded, the other end of the second voltage-dividing resistor is electrically connected with the first end of the first voltage-dividing resistor, and the second end of the first voltage-dividing resistor is used for outputting a power supply with a preset voltage;
the main control circuit is electrically connected with the first end of the first voltage-dividing resistor, and the main control circuit enables the second end of the first voltage-dividing resistor to output different power supply voltages by adjusting the potential between the first voltage-dividing resistor and the second voltage-dividing resistor.
Optionally, a regulating circuit is connected between the power supply circuit and the first end of the first voltage-dividing resistor;
the main control circuit adjusts the level state of the adjusting circuit to adjust the potential between the first voltage-dividing resistor and the second voltage-dividing resistor.
Optionally, the adjusting circuit includes at least one adjusting resistor, one end of the adjusting resistor is electrically connected to the main control circuit, and the other end of the adjusting resistor is electrically connected to the first end of the first voltage dividing resistor.
Optionally, the number of the adjusting resistors is at least two, and each end of the at least two adjusting resistors is electrically connected with the main control circuit; the other ends of the two adjusting resistors are electrically connected with the first end of the first voltage dividing resistor;
the main control circuit is used for independently adjusting the level state of each adjusting resistor.
Optionally, the number of the adjusting resistors is at least two, wherein one end of each of the two adjusting resistors is connected and electrically connected to the main control circuit, and the other end of each of the two adjusting resistors is grounded and electrically connected to the first end of the first voltage dividing resistor.
Optionally, the main control circuit is a controller, and each of the two or more adjusting resistors is electrically connected to a different control pin of the controller.
Optionally, the main control circuit is in communication connection with a preset load to obtain a normal power supply voltage of the load, and the main control circuit adjusts a potential between the first voltage-dividing resistor and the second voltage-dividing resistor according to the normal power supply voltage, so that the preset voltage output by the second end of the first voltage-dividing resistor matches the normal power supply voltage.
Optionally, the power supply circuit further includes a power supply circuit, and the power supply circuit includes a power supply controller, and the power supply controller is configured to be electrically connected to an external voltage and supply power to the voltage dividing circuit.
In order to solve the technical problem, the application adopts a technical scheme that: there is provided a power supply device including the power supply circuit as described above, the power supply device further including:
the inverter circuit is electrically connected with the second end of the first voltage-dividing resistor and is used for receiving a power supply provided by the first voltage-dividing resistor and converting the power supply into alternating current with frequency greater than preset frequency;
and the power supply coil is connected with the inverter circuit and is used for being coupled with a preset load so as to supply power to the load.
In order to solve the technical problem, the application adopts a technical scheme that: providing a load comprising a supply circuit as described hereinbefore, the load further comprising:
the coupling coil is used for being coupled with a preset power supply coil so as to supply power to the voltage division circuit.
The beneficial effect of this application is: the scheme of this application adopts main control circuit to adjust the electric potential of position between first divider resistance and the second divider resistance to can make the second end of first divider resistance can export the power signal that has different voltages, with to the load power supply rather than being connected, thereby can make this power supply circuit can supply power to the load of multiple different power, thereby can improve power supply circuit's suitability. When the power supply circuit is applied to the wireless power supply device, the main control circuit can adjust the voltage of the power supply output by the power supply coil according to the normal working power of the load, so that the power supply device can supply power to different loads; when the power supply circuit is applied to a load, the main control circuit at the end can regulate the power supply voltage generated by the coupling of the coupling coil of the main control circuit and the preset electromagnetic coil according to the normal working power of the load at the functional component, so that the load can be suitable for different power supply devices.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
fig. 1 is a schematic structural diagram of an embodiment of a power supply circuit provided in the present application;
FIG. 2 is a schematic diagram of another embodiment of a power supply circuit provided in the present application;
FIG. 3 is a schematic diagram of another embodiment of a power supply circuit provided in the present application;
fig. 4 is a schematic circuit structure diagram of a power supply device provided in the present application;
fig. 5 is a schematic circuit diagram of a load according to the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 application.
It should be noted that if directional indications (such as up, down, left, right, front, and back … …) are referred to in the embodiments of the present application, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present application, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of a power supply circuit provided in the present application.
The power supply circuit 10 includes a voltage divider circuit 100 and a main control circuit 200. Which may be used in a wireless power supply.
The voltage dividing circuit 100 comprises a first voltage dividing resistor R1 and a second voltage dividing resistor R2, wherein a first end 101 and a second end 102 of the first voltage dividing resistor R1 are respectively electrically connected with a power input signal end VIN and a power output signal end of an external power supply; one end of the second voltage-dividing resistor R2 is grounded, the other end of the second voltage-dividing resistor R2 is electrically connected to the first end 101 of the first voltage-dividing resistor R1, and the second end 102 of the first voltage-dividing resistor R1 is used for outputting a power supply with a preset voltage. Therefore, the voltage dividing circuit 100 can receive an external power source and divide the voltage to output the power source VSS with a predetermined voltage through the second terminal 102 of the first voltage dividing resistor R1.
The main control circuit 200 is electrically connected to the first end 101 of the first voltage-dividing resistor R1, and the main control circuit 200 adjusts the potential at a position between the first voltage-dividing resistor R1 and the second voltage-dividing resistor R2, so that the second end 102 of the first voltage-dividing resistor R1 outputs different supply voltages.
Therefore, the main control circuit 200 is adopted to adjust the potential at the position between the first voltage-dividing resistor R1 and the second voltage-dividing resistor R2, so that the second terminal 102 of the first voltage-dividing resistor R1 can output power signals with different voltages to supply power to the load connected with the second terminal 102 of the first voltage-dividing resistor R1, and thus the power supply circuit can supply power to loads with different powers, and the applicability of the power supply circuit can be improved.
In this embodiment, an adjusting circuit 300 is connected between the main control circuit 200 and the first terminal 101. The master circuit 200 may establish an electrical connection with the voltage divider circuit 100 through the regulator circuit 300. The main control circuit 200 can adjust the potential between the first voltage-dividing resistor R1 and the second voltage-dividing resistor R2, i.e., adjust the potential of the first terminal 101, by adjusting the level state of the adjusting circuit 300.
The main control circuit 200 may be a control chip such as an IC, or the main control circuit 200 may be a control circuit formed by various electronic components.
When the main control circuit 200 is a control chip, the control pin of the main control circuit 200 may be electrically connected to the adjusting circuit 300, and then a control signal may be output to the adjusting circuit 300, so as to adjust the level state of the adjusting circuit 300.
The adjusting circuit 300 may include at least one adjusting resistor R3. One end of the adjusting resistor R3 may be electrically connected to the main control circuit 200, and the other end thereof is electrically connected to the first end 101.
The adjusting resistor R3 may include at least two states of a high level, a low level, and a high impedance input, and the potential of the first terminal 101 may be adjusted by adjusting the level state of the adjusting resistor R3.
Specifically, when the adjusting resistor R3 is in a high level state, the adjusting resistor R3 further outputs an electrical signal to the first end 101 of the first voltage-dividing resistor R1, so that the potential of the first end 101 can be increased, and at this time, when the external power voltage is not changed, the power VSS voltage output by the second end 102 of the first voltage-dividing resistor R1 is decreased; when the adjusting resistor R3 is in the high impedance state, the adjusting resistor R3 is electrically disconnected from the first end 101 of the first voltage-dividing resistor R1, that is, the voltage value of the power supply VSS output from the second end 102 of the first voltage-dividing resistor R1 is not changed; when the adjusting resistor R3 is in a low level state, the end of the adjusting resistor R3 connected to the main control circuit 200 is equivalently grounded, and at this time, the adjusting resistor R3 and the second voltage-dividing resistor R2 may be connected in parallel, and are connected in series with the first voltage-dividing resistor R1 after being connected in parallel.
Therefore, by providing an adjusting resistor R3, and when the adjusting resistor R3 has three states, i.e., a high level, a low level, and a high impedance state, the state of the adjusting resistor R3 is switched by the main control circuit 200, so that the second terminal 102 can output three power sources with different voltage values to supply power to a preset load.
In other embodiments, the adjusting resistor R3 has two states of three states, i.e., high, low, and high-impedance input, for example, the node resistor 310 has high and high-impedance input states; or have a low level and a high impedance state input state. That is, the main control circuit 200 is used to switch the state of the regulating resistor R3, so that the second terminal 102 can output two power supplies with different voltage values.
Further, in other embodiments, the adjusting circuit 300 may further include two or more adjusting resistors R3.
Referring to fig. 2, fig. 2 is a schematic structural diagram of another embodiment of a power supply circuit provided in the present application.
The power supply circuit 10 in this embodiment is different from the power supply circuit shown in fig. 1 in that, in this implementation, the adjusting circuit 300 may include two adjusting resistors, which are an adjusting resistor R3 and an adjusting resistor R4, respectively, where one end of the adjusting resistor R4 is grounded, the other end of the adjusting resistor R4 is electrically connected to one end of the adjusting resistor R3, and the other end of the adjusting resistor R3 is electrically connected to the first end 101 of the first voltage dividing resistor R1. Furthermore, one end of the adjusting resistor R3 connected to the adjusting resistor R4 is also electrically connected to the main control circuit 200.
Referring to fig. 3, fig. 3 is a schematic structural diagram of another embodiment of a power supply circuit provided in the present application.
One end of each adjusting resistor R3 may be electrically connected to the main control circuit 200; the other end of each tuning resistor R3 may be electrically connected to the first terminal 101.
In this embodiment, each of the adjusting resistors R3 may include at least two level states (any two states of high level, low level, and high resistance state input), and the main control circuit 200 may individually adjust the level state of each of the adjusting resistors R3, so that by setting a plurality of adjusting resistors R3, and by individually adjusting the level state of each of the adjusting resistors R3, and by combining the level states of the plurality of adjusting resistors R3, the potential of the first end 101 of the first voltage divider resistor R1 may have different values, and thus the power VSS output by the second end 102 of the first voltage divider resistor R1 may have different voltages for supplying power.
When the main control circuit 200 is a controller such as a control chip, one end of each adjusting resistor R3 connected to the main control circuit 200 may be electrically connected to different pins of the control chip.
In this embodiment, the resistances of the plurality of adjusting resistors R3 may be set to be the same, for example, may be set to be the same as the resistance of the second divider resistor R2. Or may be configured differently.
In other embodiments, the adjusting circuit 300 may include an adjusting resistor R3 with a variable resistance value, and the magnitude of the resistance value is adjusted, and the level state is adjusted by the main control circuit 200, so that the potential of the first terminal 101 has different values, and thus the second terminal 102 can output the power VSS with a plurality of different voltages.
The resistance variable adjusting resistor R3 may be a knob type adjustable resistor, or a thermistor, a photo-resistor, or the like.
Further, the power supply circuit 10 further includes a power supply circuit 400, and the voltage dividing circuit 100 may be electrically connected to an external power supply through the power supply circuit 400 for receiving a power signal input from the power input signal terminal VIN. The power circuit 400 may convert an external power into a power having a preset voltage value to supply power to the voltage divider circuit 100.
Optionally, the power circuit 400 may include a power controller 410, and the power controller 410 is configured to be electrically connected to an external voltage, so as to control the voltage dividing circuit 100, so that the second terminal 102 outputs a preset voltage.
Therefore, in the solution of the present application, the main control circuit 200 and the regulating circuit 300 are adopted to regulate the potential of the first terminal 101, so that the supply voltage output by the second terminal 102 can be regulated without changing the control signal of the power controller 410.
The main control circuit 200 may be electrically connected to the power supply controller, or may be directly electrically connected to an external power supply to receive power supply.
Further, in this embodiment, the power supply circuit 400 may further include a freewheeling diode D1. The anode of the freewheeling diode D1 is grounded, and the cathode thereof is electrically connected to the second terminal 102. The freewheeling diode D1 is used to supply power to the second end 102 when the phase jump occurs in the power supply circuit 10, so as to ensure the stability of the power supply to the second end 102 of the first divider resistor R1.
The power circuit 400 further includes a voltage-stabilizing capacitor C1 and a current-stabilizing inductor L1. One end of the voltage stabilizing capacitor C1 is electrically connected to the second end 102, and the other end is grounded, so that voltage stabilization of the power received by the power circuit 400 can be realized; one end of the current stabilizing inductor L1 is electrically connected to the second end 102, and the other end is electrically connected to the power controller 410, so that current stabilization of the power received by the power circuit 400 can be realized.
Further, in this embodiment, the second terminal 102 of the first voltage-dividing resistor R1 supplies power to the load, so that the load can operate normally, and the supply voltage of the second terminal 102 may be the normal supply voltage. Therefore, the main control circuit 200 may further perform communication connection with a preset load, so as to obtain the power of the load during normal operation, and output a corresponding control signal to the adjusting circuit 300 according to the power of the load during normal operation, so as to adjust the potential at the position of the first end 101, and further enable the second end 102 to output a normal power supply voltage matched with the normal power supply power of the load.
In this embodiment, the power supply circuit 10 further includes a voltage stabilizing circuit 500, wherein the main control circuit 200 is electrically connected to the power supply circuit 400 through the voltage stabilizing circuit 500. Therefore, by providing the voltage stabilizing circuit 500, it is possible to ensure that the power voltage transmitted to the main control circuit 200 is stable, so that the main control circuit 200 operates stably.
The voltage stabilizing circuit 500 may include a three-terminal regulator 510 and two voltage stabilizing capacitors C2. The three-terminal regulator 510 includes an input terminal 511, an output terminal 512, and a common terminal 513. Wherein, the input terminal 511 of the three-terminal regulator 510 is electrically connected with the power circuit 400; the output 512 of the three-terminal regulator 510 can be electrically connected to the main control circuit 200; one end of each of the two voltage-stabilizing capacitors C2 is electrically connected to the input terminal 511 and the output terminal 512, and the other end of each of the two voltage-stabilizing capacitors C2 is electrically connected to the common terminal 513. The common terminal 513 may also be a ground terminal. The output 512 of the output 512 can output the power supply signal VDD, so as to supply power to the main control circuit 200 to determine that the main control circuit 200 is operating normally.
Further, in the above embodiment, the second end 102 may directly supply power to a preset load; or the second end 102 may also supply power to a predetermined solenoid coil and then receive power from a predetermined load by coupling the load to the solenoid coil.
The second terminal 102 may also be used to electrically connect with the main control circuit 200 to supply power to the main control circuit 200. When the main control circuit 200 is a controller such as a chip, a power pin of the controller may be connected to the second end 102, so as to be electrically connected to an external power source. Or in other embodiments, the main control circuit 200 may be directly electrically connected to an external power source.
Specifically, when the second terminal 102 of the first divider resistor R1 can supply power to a predetermined electromagnetic coil, and then the predetermined load is coupled to the electromagnetic coil so that the load receives power. The power supply circuit 10 can be applied to a power supply device.
Referring to fig. 4, fig. 4 is a schematic circuit structure diagram of a power supply device provided in the present application.
Wherein the power supply means 60 comprises a power supply circuit and a power supply coil as described hereinbefore.
Specifically, the power supply device 60 includes a power supply coil 610, an inverter circuit 620, and any one of the power supply circuits 10 described above.
The second end 102 of the first voltage-dividing resistor R1 in the power supply circuit 10 may be electrically connected to the inverter circuit 620, so as to supply power to the inverter circuit 620, and the inverter circuit 620 may convert the received power supply into an alternating current with a preset frequency.
The inverter circuit 620 includes a control module 621 and four switches S1, S2, S3 and S4 respectively connected to two ends of the power supply coil 610. The control module 621 includes four signal control terminals a1, a2, A3, and a 4. The four signal control terminals a1, a2, A3 and a4 can respectively control the on and off of the four switches S1, S2, S3 and S4, so that the transmission direction of the power supply electrical signal VSS received by the power supply coil 610 can be adjusted. So as to realize the conversion of the power supply electrical signal VSS into an alternating current with a preset frequency.
The inverter circuit 620 is further electrically connected to the power supply coil 610, and the power supply coil 610 can receive the alternating current provided by the inverter circuit 620, so as to generate an alternating magnetic field. The power supply coil 610 may be used as a coupling coil of an output end, and the coupling coil of the output end may be electromagnetically coupled with other loads, so as to wirelessly supply power to the loads.
The load may be an electronic product such as a mobile phone or a tablet, and the power supply device 60 may be configured to wirelessly charge the load; or the load may also be a heating terminal such as a water heater, a coffee machine, an induction cooker, or a wall breaking machine, and the power supply device 60 may be configured to wirelessly supply power to the load, so that the heating terminal performs a heating operation.
In this embodiment, the main control circuit 200 may establish a communication connection with a preset load through the power supply coil 610. The main control circuit 200 may obtain the normal power supply power of the load, and according to the normal power supply power, the main control circuit 200 may further adjust the level state of the adjusting resistor R3, so as to adjust the potential of the first end 101, so that the second end 102 may output a voltage matched with the normal power supply power to the load.
Therefore, the main control circuit 200 of the power supply device 60 in this embodiment can adjust the voltage of the power source output by the power supply coil 610 according to the normal operating power of the load, so that the power supply device 60 can supply power to different loads.
When the second terminal 102 of the first divider resistor R1 supplies power directly to the predetermined load. The supply circuit 10 may then be applied in a load.
Referring to fig. 5, fig. 5 is a schematic circuit diagram of a load according to the present disclosure.
Wherein the load comprises a supply circuit as described hereinbefore.
Specifically, the load 70 may include a coupling coil (not shown), the power supply circuit 10 as described in any of the foregoing, and the load functional component 720.
The coupling coil may be configured to couple with a predetermined electromagnetic coil to form a coupling current, and the coupling coil is electrically connected to the power circuit 400 of the power supply circuit 10 to be used as an external power input to supply power to the power circuit 400. The second terminal 102 of the power supply circuit 10 may be electrically connected to the load function 720, so as to supply power to the load function 720.
Optionally, the external power input may also provide a power signal VA to the voltage stabilizing circuit 500, and the power signal VA is subjected to voltage stabilization processing by the voltage stabilizing circuit 500 and then transmitted to the main control circuit 200 to supply power to the main control circuit 200.
Wherein the load functional component 720 may be a battery, that is, the second end 102 may charge the load functional component 720; or the load functional component 720 may be a heating resistor, i.e., the second end 102 may power the load functional component 720, thereby enabling the load functional component 720 to heat.
Or in other embodiments, the load function component 720 may also be an electroluminescent component, and the lighting function may be realized by supplying power to the load function component 720 through the second end 102.
In this embodiment, the main control circuit 200 may be electrically connected to the load function module 720 through the switch 730. The switch 730 can be used to control the connection and disconnection between the main control circuit 200 and the load function component 720.
When the switch 730 makes the main control circuit 200 and the load functional component 720 electrically connected, the main control circuit 200 may obtain the normal power supply power of the load functional component 720, and then according to the normal power supply power, the main control circuit 200 may further adjust the level state of the adjusting resistor R3, and further adjust the potential of the first end 101, so that the second end 102 may output a voltage matched with the normal power supply power to the load functional component 720.
The load 70 may be a load that can be wirelessly charged, such as a mobile phone and a tablet, or may also be a heating load, such as a wall breaking machine, a kettle, an induction cooker, and the like; or may be an electroluminescent load.
Therefore, the main control circuit 200 at the load end in this embodiment can adjust the power supply voltage generated by coupling the coupling coil of the load end with the predetermined electromagnetic coil according to the normal operating power of the load at the functional component 720, so that the load 70 can be suitable for different power supply devices.
In summary, those skilled in the art can easily understand that the beneficial effects of the present application are: the scheme of this application adopts main control circuit to adjust the electric potential of position between first divider resistance and the second divider resistance to can make the second end of first divider resistance can export the power signal that has different voltages, with to the load power supply rather than being connected, thereby can make this power supply circuit can supply power to the load of multiple different power, thereby can improve power supply circuit's suitability. When the power supply circuit is applied to the wireless power supply device, the main control circuit can adjust the voltage of the power supply output by the power supply coil according to the normal working power of the load, so that the power supply device can supply power to different loads; when the power supply circuit is applied to a load, the main control circuit at the end can regulate the power supply voltage generated by the coupling of the coupling coil of the main control circuit and the preset electromagnetic coil according to the normal working power of the load at the functional component, so that the load can be suitable for different power supply devices.
The above embodiments are merely examples, and not intended to limit the scope of the present disclosure, and all modifications, equivalents, and flow charts using the contents of the specification and drawings of the present disclosure, or their direct or indirect application to other related arts, are included in the scope of the present disclosure.
Claims (10)
1. A power supply circuit, characterized in that the power supply circuit comprises:
the voltage division circuit comprises a first voltage division resistor and a second voltage division resistor, wherein the first end and the second end of the first voltage division resistor are respectively and electrically connected with the positive electrode and the negative electrode of an external power supply; one end of the second voltage-dividing resistor is grounded, the other end of the second voltage-dividing resistor is electrically connected with the first end of the first voltage-dividing resistor, and the second end of the first voltage-dividing resistor is used for outputting a power supply with a preset voltage;
the main control circuit is electrically connected with the first end of the first voltage-dividing resistor, and the main control circuit enables the second end of the first voltage-dividing resistor to output different power supply voltages by adjusting the potential between the first voltage-dividing resistor and the second voltage-dividing resistor.
2. The power supply circuit of claim 1,
a regulating circuit is connected between the power supply circuit and the first end of the first divider resistor;
the main control circuit adjusts the level state of the adjusting circuit to adjust the potential between the first voltage-dividing resistor and the second voltage-dividing resistor.
3. The power supply circuit of claim 2,
the adjusting circuit comprises at least one adjusting resistor, one end of the adjusting resistor is electrically connected with the main control circuit, and the other end of the adjusting resistor is electrically connected with the first end of the first voltage dividing resistor.
4. The power supply circuit of claim 3,
the number of the adjusting resistors is at least two, and one end of each of the at least two adjusting resistors is electrically connected with the main control circuit; the other ends of the two adjusting resistors are electrically connected with the first end of the first voltage dividing resistor;
the main control circuit is used for independently adjusting the level state of each adjusting resistor.
5. The power supply circuit of claim 3,
the number of the adjusting resistors is at least two, wherein one ends of the two adjusting resistors are connected and electrically connected with the main control circuit, and the other ends of the two adjusting resistors are respectively grounded and electrically connected with the first end of the first divider resistor.
6. The power supply circuit of claim 4,
the main control circuit is a controller, and one end of each of the at least two adjusting resistors is electrically connected with different control pins of the controller.
7. The power supply circuit according to any one of claims 1 to 6,
the main control circuit is in communication connection with a preset load and used for obtaining a normal power supply voltage of the load, and the main control circuit adjusts the potential between the first voltage-dividing resistor and the second voltage-dividing resistor according to the normal power supply voltage so that the preset voltage output by the second end of the first voltage-dividing resistor is matched with the normal power supply voltage.
8. The power supply circuit of claim 7,
the power supply circuit further comprises a power supply circuit, and the power supply circuit comprises a power supply controller which is used for being electrically connected with external voltage and supplying power to the voltage division circuit.
9. A power supply device characterized in that the power supply device comprises the power supply circuit according to any one of claims 1 to 8, the power supply device further comprising:
the inverter circuit is electrically connected with the second end of the first voltage-dividing resistor and is used for receiving a power supply provided by the first voltage-dividing resistor and converting the power supply into alternating current with frequency greater than preset frequency;
and the power supply coil is connected with the inverter circuit and is used for being coupled with a preset load so as to supply power to the load.
10. A load, characterized in that the load comprises a supply circuit according to any of claims 1-8, the load further comprising:
the coupling coil is used for being coupled with a preset power supply coil so as to supply power to the voltage division circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121155950.3U CN216290352U (en) | 2021-05-26 | 2021-05-26 | Power supply circuit, power supply device and load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121155950.3U CN216290352U (en) | 2021-05-26 | 2021-05-26 | Power supply circuit, power supply device and load |
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| Publication Number | Publication Date |
|---|---|
| CN216290352U true CN216290352U (en) | 2022-04-12 |
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| CN202121155950.3U Active CN216290352U (en) | 2021-05-26 | 2021-05-26 | Power supply circuit, power supply device and load |
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| CN (1) | CN216290352U (en) |
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2021
- 2021-05-26 CN CN202121155950.3U patent/CN216290352U/en active Active
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