Power supply circuit and device

Abstract

The utility model discloses a power supply circuit and device, and relates to the technical field of power supplies, and the power supply circuit comprises an inductive energy storage module, a rectification module and a first filtering module. The input end of the inductive energy storage module is used for being connected with a power supply, the output end of the inductive energy storage module is respectively connected with the input end of the rectifier module and the first end of the first filter module, and the output end of the rectifier module and the second end of the first filter module are connected with a load; in a one-way electric energy transmission power supply circuit formed by an inductive energy storage module and a rectifier module, a first filter module is connected in parallel to two ends of the rectifier module, so that high-frequency signals passing through the rectifier module are filtered; therefore, the phenomenon that the structure formed by the inductive energy storage module and the rectification module prevents the reverse transmission of the negative cycle current in the high-frequency signal to cause the abnormal voltage rise can be prevented. The voltage output to the load can be ensured not to be too high, and the load is protected from being damaged by receiving too high voltage.

Description

Technical Field

[0001] The present application relates to the field of power supply technology, and in particular to a power supply circuit and device. Background Art

[0002] In the prior art, a power supply usually needs to supply power to a variety of loads of different specifications, and each load may have a different required voltage, so a power supply circuit needs to be set up between the power supply and the load. In order to ensure the power supply stability of the power supply and the adjustability of the power supply function, an energy storage module can usually be set up between the power supply and the load to store and release electric energy, and a rectifier module for ensuring unidirectional transmission of electric energy can be set up between the energy storage module and the load to achieve the transmission of electric energy from the power supply to the load and complete the power supply. Generally, an inductive energy storage module with inductance and a rectifier module can be set between the power supply and the load. However, some high-frequency signals are often introduced into the circuit. When the structure of the inductive energy storage module and the rectifier module receives a high-frequency signal in the secondary half-cycle, due to the unidirectional conduction characteristics of the rectifier module, the electric energy of the high-frequency signal will accumulate, thereby causing the actual voltage output to the load to exceed the required voltage of the load, resulting in the possibility that the load may be damaged due to the high voltage received. Utility Model Content

[0003] The main purpose of this application is to provide a power supply circuit and device, aiming to solve the technical problem of how to prevent high-frequency signals from causing the voltage output by the power supply circuit to be abnormally high.

[0004] To achieve the above-mentioned object, an embodiment of the present application provides a power supply circuit, which includes: an inductive energy storage module, a rectifier module and a first filter module;

[0005] The input end of the inductive energy storage module is used to connect to the power supply, the output end of the inductive energy storage module is respectively connected to the input end of the rectifier module and the first end of the first filter module, and the output end of the rectifier module and the second end of the first filter module are connected to the load;

[0006] The inductive energy storage module is used to store the electric energy provided by the power supply to form an electric signal, and transmit the electric signal to the load through the rectifier module;

[0007] The rectifier module is used to rectify the electrical signal transmitted in the connection loop from the inductive energy storage module to the load;

[0008] The first filtering module is used to perform high-frequency filtering on the electrical signal passing through the rectifier module in the connection loop.

[0009] In one embodiment, the first filtering module includes: a first capacitor;

[0010] The first end of the first capacitor is connected to the output end of the inductive energy storage module and the input end of the rectifier module respectively, and the second end of the first capacitor is connected to the output end of the rectifier module and the load respectively.

[0011] In one embodiment, the inductive energy storage module includes: an energy storage inductor;

[0012] The first end of the energy storage inductor is used to connect to the power supply, and the second end of the energy storage inductor is respectively connected to the input end of the rectifier module and the first end of the first filter module.

[0013] In one embodiment, the rectifier module includes: a rectifier diode;

[0014] The anode of the rectifier diode is respectively connected to the first end of the first filter module and the output end of the inductive energy storage module, and the cathode of the rectifier diode is respectively connected to the second end of the first filter module and the load.

[0015] In one embodiment, the power supply circuit further includes: a voltage regulating module;

[0016] The output end of the voltage regulating module is respectively connected to the output end of the inductive energy storage module, the first end of the first filtering module and the input end of the rectifier module; the control end of the voltage regulating module is used to receive a high-frequency driving signal;

[0017] The voltage regulating module is used to adjust the voltage value of the electrical signal output by the inductive energy storage module when receiving the high-frequency driving signal.

[0018] In one embodiment, the voltage regulating module includes: a switch tube;

[0019] The control end of the switch tube is used to receive the high-frequency drive signal, the input end of the switch tube is respectively connected to the output end of the inductive energy storage module, the first end of the first filter module and the input end of the rectifier module, and the output end of the switch tube is grounded.

[0020] In one embodiment, the power supply circuit further includes: a second filtering module and a third filtering module;

[0021] The second filter module is respectively connected to the power supply and the input end of the inductive energy storage module; the third filter module is respectively connected to the second end of the filter module, the output end of the rectifier module and the load;

[0022] The second filtering module is used to filter the electric energy provided by the power supply;

[0023] The third filtering module is used to filter the electrical signal received by the load.

[0024] In one embodiment, the second filtering module includes: a second capacitor;

[0025] The first end of the second capacitor is connected to the input end of the inductive energy storage module and the power supply respectively; the second end of the second capacitor is grounded.

[0026] In one embodiment, the third filtering module includes: a third capacitor;

[0027] A first end of the third capacitor is respectively connected to the output end of the rectifier module, the second end of the first filter module and the load, and a second end of the third capacitor is grounded.

[0028] In addition, to achieve the above-mentioned purpose, the present application also provides a power supply device, which adopts the power supply circuit described above.

[0029] The present application provides a power supply circuit and device, the power supply circuit comprising: an inductive energy storage module, a rectifier module, and a first filter module; the input end of the inductive energy storage module is used to connect to a power supply, the output end of the inductive energy storage module is respectively connected to the input end of the rectifier module and the first end of the first filter module, and the output end of the rectifier module and the second end of the first filter module are connected to a load; the inductive energy storage module is used to store the electric energy provided by the power supply to form an electric signal, and transmit the electric signal to the load through the rectifier module; the rectifier module is used to rectify the electric signal transmitted in the connection loop from the inductive energy storage module to the load; and the first filter module is used to perform high-frequency filtering on the electric signal passing through the rectifier module in the connection loop. In a power supply circuit with unidirectional power transmission formed by the inductive energy storage module and the rectifier module, by connecting the first filter module in parallel at both ends of the rectifier module to filter out the high-frequency signal passing through the rectifier module, the structure formed by the inductive energy storage module and the rectifier module can be prevented from causing an abnormal voltage increase due to preventing the reverse transmission of negative cycle current in the high-frequency signal. It can ensure that the voltage output to the load will not be too high, protecting the load from being damaged by receiving excessively high voltage. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0031] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0032] Figure 1 A structural connection diagram provided for the first embodiment of the power supply circuit of this application;

[0033] Figure 2 A circuit connection diagram provided for the second embodiment of the power supply circuit of this application;

[0034] Figure 3 A circuit connection diagram provided for the third embodiment of the power supply circuit of this application;

[0035] Figure 4 A waveform diagram showing an example of a high-frequency driving signal and an electrical signal transmitted in a power supply circuit;

[0036] Figure 5 The waveform diagram is another example of the high-frequency driving signal and the electrical signal transmitted in the power supply circuit.

[0037] The purpose, features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0038] It should be understood that the specific embodiments described herein are merely used to explain the technical solutions of the present application and are not intended to limit the present application.

[0039] In order to better understand the technical solution of the present application, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation methods.

[0040] Currently, power supplies are often required to power a variety of loads of different specifications, each of which may have a different required voltage. Therefore, a power supply circuit needs to be set up between the power supply and the load. To ensure the power supply stability and adjustability of the power supply function, an energy storage module can usually be set up between the power supply and the load to store and release electrical energy, and a rectifier module for ensuring unidirectional transmission of electrical energy can be set up between the energy storage module and the load to achieve the transmission of electrical energy from the power supply to the load and complete the power supply. Generally, an inductive energy storage module with inductance and a rectifier module can be set up between the power supply and the load. However, some high-frequency signals are often introduced into the circuit. When the structure of the inductive energy storage module and the rectifier module receives a high-frequency signal in the secondary half-cycle, due to the unidirectional conduction characteristics of the rectifier module, the electrical energy of the high-frequency signal will accumulate, causing the actual voltage output to the load to exceed the required voltage of the load, resulting in the load being damaged by the high voltage received. Therefore, how to prevent the high-frequency signal from causing the voltage output of the power supply circuit to be abnormally high is a problem that needs to be solved urgently.

[0041] In this application, in a power supply circuit for unidirectional power transmission formed by an inductive energy storage module and a rectifier module, a first filter module is connected in parallel across the rectifier module to filter out high-frequency signals passing through the rectifier module. This prevents the structure formed by the inductive energy storage module and the rectifier module from causing abnormal voltage increases due to blocking the reverse transmission of negative cycle current in the high-frequency signal. This ensures that the voltage output to the load is not excessively high, protecting the load from damage caused by receiving excessively high voltage.

[0042] Based on this, this application proposes a power supply circuit of the first embodiment, please refer to Figure 1 , the power supply circuit includes: an inductive energy storage module 10, a rectifier module 20 and a first filter module 30;

[0043] The input end of the inductive energy storage module 10 is used to connect to the power supply 40, the output end of the inductive energy storage module 10 is respectively connected to the input end of the rectifier module 20 and the first end of the first filter module 30, and the output end of the rectifier module 20 and the second end of the first filter module 30 are connected to the load 50;

[0044] The inductive energy storage module 10 is used to store the electric energy provided by the power supply 40 to form an electric signal, and transmit the electric signal to the load 50 through the rectifier module 20;

[0045] The rectifier module 20 is used to rectify the electrical signal transmitted in the connection loop from the inductive energy storage module 10 to the load 50;

[0046] The first filtering module 30 is used to perform high-frequency filtering on the electrical signal passing through the rectifier module 20 in the connection loop.

[0047] It should be understood that, in this embodiment, the power supply 40 may be a low-voltage DC power supply, and the electrical energy outputted by the power supply 40 may be in the form of a DC electrical signal.

[0048] It should be noted that the inductive energy storage module 10 has an inductive element inside, which has the characteristics of blocking high frequencies and passing low frequencies. In this embodiment, the inductive energy storage module 10 can store the electrical energy provided by the power supply 40 to form an electrical signal, and output the electrical signal in a unidirectional direction to the load 50 through the rectifier module 20, providing the load 50 with power supply of appropriate voltage. In this process, due to the electrical noise existing in the circuit itself or interference from external factors, some high-frequency noise is often superimposed in the circuit. High-frequency noise will also be transmitted to the load 50 through the inductive energy storage module 10 and the rectifier module 20 in turn. Due to the characteristics of the inductive energy storage module 10 that passes low frequencies and blocks high frequencies and the unidirectional conduction characteristics of the rectifier module 20, the high-frequency signal of the secondary half-cycle cannot be transmitted back to the energy storage module through the rectifier module 20, and a phenomenon of accumulation occurs on the load 50 side, causing the actual voltage on the load 50 side to exceed the required voltage of the load 50 (which is also the voltage that the load 50 should theoretically receive). Therefore, it can also be understood that the additional excess portion of the actual voltage is caused by the high-frequency signal passing through the structure formed by the inductive energy storage module 10 and the rectifier module 20 .

[0049] It is easy to understand that in this embodiment, the first filter module 30 can be connected in parallel to both ends of the rectifier module 20. The first filter module 30 can filter the high-frequency signals in the electrical signals passing through the rectifier module 20, preventing the high-frequency signals from passing through the rectifier module 20. In other words, the structure formed by the rectifier module 20 and the inductive energy storage module 10 will not cause the voltage output from the second energy storage module to abnormally increase. In this case, the voltage value of the electrical signal actually output by the second energy storage module to the load 50 can be roughly stable near the ideal value required by the load 50. The load 50 can receive the ideal voltage value and operate normally, and the load 50 will not be damaged due to an abnormally high received voltage value.

[0050] The present application provides a power supply circuit, which includes an inductive energy storage module, a rectifier module, and a first filter module; the input end of the inductive energy storage module is used to connect to a power supply, the output end of the inductive energy storage module is respectively connected to the input end of the rectifier module and the first end of the first filter module, and the output end of the rectifier module and the second end of the first filter module are connected to a load; the inductive energy storage module is used to store the electric energy provided by the power supply to form an electric signal, and transmit the electric signal to the load through the rectifier module; the rectifier module is used to rectify the electric signal transmitted in the connection loop from the inductive energy storage module to the load; and the first filter module is used to perform high-frequency filtering on the electric signal passing through the rectifier module in the connection loop. In a power supply circuit with unidirectional power transmission formed by the inductive energy storage module and the rectifier module, by connecting the first filter module in parallel at both ends of the rectifier module to filter out the high-frequency signal passing through the rectifier module, the structure formed by the inductive energy storage module and the rectifier module can be prevented from causing an abnormal voltage increase due to preventing the reverse transmission of negative cycle current in the high-frequency signal. It can ensure that the voltage output to the load will not be too high, protecting the load from being damaged by receiving excessively high voltage.

[0051] Based on the first embodiment of the present application, in the second embodiment of the present application, the same or similar contents as those in the above embodiment 1 can be referred to the above introduction and will not be described in detail later. Figure 2 , the first filtering module 30 includes: a first capacitor C1;

[0052] The first end of the first capacitor C1 is connected to the output end of the inductive energy storage module 10 and the input end of the rectifier module 20 , respectively. The second end of the first capacitor C1 is connected to the output end of the rectifier module 20 and the load 50 , respectively.

[0053] It should be noted that in this embodiment, the first capacitor C1 is connected in parallel with the rectifier module 20. Since the first capacitor C1 has the characteristic of passing high frequencies and blocking low frequencies, when the inductive energy storage module 10 transmits the electrical signal carrying electrical energy to the load 50 unidirectionally through the rectifier module 20, since the electrical signal used to provide electrical energy is a low-frequency signal, the low-frequency electrical signal can be transmitted unidirectionally from the rectifier module 20 to the load 50, but cannot be transmitted bidirectionally through the first capacitor C1. However, high-frequency signals or high-frequency interference signals generated by external factors in the circuit can be transmitted bidirectionally through the first capacitor C1, and the electrical energy of the secondary half-cycle carried by it will not be accumulated and stored separately at the inductive energy storage module 10, thereby avoiding the occurrence of an abnormal increase in the voltage value of the electrical signal received by the load 50 side.

[0054] Furthermore, in this embodiment, the inductive energy storage module 10 includes: an energy storage inductor L0;

[0055] The first end of the energy storage inductor L0 is used to connect to the power supply 40 , and the second end of the energy storage inductor L0 is respectively connected to the input end of the rectifier module 20 and the first end of the first filter module 30 .

[0056] It should be noted that, in this embodiment, the energy storage inductor L0 serves as the energy storage device of the inductive energy storage module 10, and has the characteristic that the voltage at both ends will not change suddenly. When the power supply 40 is turned on, it can absorb the sudden increase in electrical energy in the form of energy storage, prevent the voltage from changing significantly, thereby reducing the impact of the significant voltage change on the power supply circuit and protecting the subsequent circuit.

[0057] Furthermore, in this embodiment, the rectifier module 20 includes: a rectifier diode D0;

[0058] The anode of the rectifier diode D0 is respectively connected to the first end of the first filter module 30 and the output end of the inductive energy storage module 10 , and the cathode of the rectifier diode D0 is respectively connected to the second end of the first filter module 30 and the load 50 .

[0059] It should be noted that in this embodiment, rectifier diode D0 primarily performs a rectifying function. When its anode receives an electrical signal transmitted by the inductive energy storage module 10, because the anode voltage is greater than the cathode voltage, rectifier diode D0 conducts, allowing the electrical signal to be transmitted unidirectionally to the load 50 connected to the cathode. This ensures that electrical energy can be transmitted unidirectionally to the load 50, thereby improving the efficiency of electrical energy transmission. In some special circumstances, such as a sudden high voltage surge on the load 50 side, the voltage on the load 50 side is higher than the voltage at the anode of rectifier diode D0. Rectifier diode D0 is cut off, and voltage backflow does not occur, effectively protecting the power supply 40.

[0060] Based on the first embodiment and / or the second embodiment of the present application, in the third embodiment of the present application, the same or similar contents as those in the first and second embodiments above can be referred to the above introduction and will not be described in detail later. Figure 3 , further, in this embodiment, the power supply circuit further includes: a voltage regulating module 60;

[0061] The output end of the voltage regulating module 60 is respectively connected to the output end of the inductive energy storage module 10, the first end of the first filtering module 30 and the input end of the rectifier module 20; the control end of the voltage regulating module 60 is used to receive a high-frequency driving signal;

[0062] The voltage regulating module 60 is configured to regulate the voltage value of the electrical signal output by the inductive energy storage module 10 upon receiving the high-frequency driving signal.

[0063] It should be noted that the high-frequency driving signal can mainly be a high-frequency PWM signal. The PWM signal can control the inductive energy storage module 10 to store the electric energy provided by the power supply 40 and release the stored electric energy in the form of an electric signal through the rectifier module 20 in a unidirectional manner to the load 50. By changing the frequency and duty cycle of the PWM signal, the electrical parameters of the output electric signal, such as voltage, current, etc., can be changed.

[0064] It is easy to understand that in this embodiment, the voltage regulating module 60 can adjust the voltage at the output end of the inductive energy storage module 10 based on the received high-frequency drive signal so that it changes according to the waveform of the high-frequency drive signal (PWM signal). Since the inductive energy storage module 10 has the characteristics of inductance, the voltage across it will not change suddenly. Therefore, the change time and frequency of the voltage at the output end of the inductive energy storage module 10 can be changed by changing the frequency and duty cycle of the high-frequency drive signal, thereby changing the voltage value at the output end of the inductive energy storage module 10, that is, the voltage value of the electrical signal output by it.

[0065] It is worth noting that in this embodiment, since the high-frequency driving signal is introduced at the switch tube Q0, which is also a high-frequency signal, the voltage of the electrical signal received by the load 50 side can be referred to as Figure 4 as well as Figure 5 .like Figure 4 As shown, the high-frequency square wave signal is the high-frequency driving signal in this application. If the voltage value of the required electrical signal is 12V, if there is no first filter module 30 to filter out the high-frequency signal passing through the rectifier module 20, then the ideal value output to the load 50 side is 12V. However, the actual voltage will rise to about 12.5V due to the high-frequency signal introduced into the circuit under the joint action of the inductive energy storage module 10 and the rectifier module 20. The actual voltage value is as follows Figure 4 As shown by the white line in the middle; correspondingly, Figure 5 As shown, the square wave signal with a higher frequency is also the high-frequency driving signal in this application. If the voltage value of the electrical signal is 12V, if the first filtering module 30 filters out the high-frequency signal passing through the rectifier module 20, the actual voltage output to the load 50 side can be 11.5±0.5V. The voltage value of the actual voltage is as follows Figure 4 As shown by the middle white line, it can be seen that even when a high-frequency driving signal is introduced, the structure formed by the inductive energy storage module 10, the rectifier module 20, and the first filter module 30 can still ensure that the voltage value of the electrical signal received by the load 50 side is not too high, and can effectively protect the load 50 from being damaged by receiving an excessively high voltage.

[0066] Furthermore, in this embodiment, the voltage regulating module 60 includes: a switch tube Q0;

[0067] The control end of the switch tube Q0 is used to receive the high-frequency drive signal, the input end of the switch tube Q0 is respectively connected to the output end of the inductive energy storage module 10, the first end of the first filter module 30 and the input end of the rectifier module 20, and the output end of the switch tube Q0 is grounded.

[0068] It is easy to understand that in this embodiment, the on / off state of the switch tube Q0 can be controlled by a high-frequency drive signal, thereby conducting the connection loop between the output end of the inductive energy storage module 10 and the ground line. When the switch tube Q0 is in the on state due to the high-frequency drive signal, the output end of the inductive energy storage module 10 is equivalent to ground, and the voltage at the input end of the rectifier module 20 is also equivalent to 0. When the switch tube Q0 is in the off state due to the high-frequency drive signal, the output end of the inductive energy storage module 10 is normally connected to the input end of the rectifier module 20, and the electrical signal can be normally transmitted unidirectionally to the load 50 through the rectifier module 20. Because the high-frequency drive signal is a periodic PWM signal, the on / off state is repeatedly switched according to the frequency and duty cycle of the PWM signal, and the voltage value of the electrical signal can be maintained at a specific voltage value.

[0069] Furthermore, in this embodiment, the power supply circuit further includes: a second filter module 70 and a third filter module 80;

[0070] The second filter module 70 is connected to the power supply 40 and the input end of the inductive energy storage module 10 respectively; the third filter module 80 is connected to the second end of the filter module, the output end of the rectifier module 20 and the load 50 respectively;

[0071] The second filtering module 70 is used to filter the electric energy provided by the power supply 40;

[0072] The third filtering module 80 is configured to filter the electrical signal received by the load 50 .

[0073] It should be noted that, in this embodiment, the second filter module 70 is used to filter out the high-frequency noise generated when the power supply 40 provides power to the inductive energy storage module 10, so as to reduce the noise interference on the input side of the power supply circuit. The third filter module 80 is used to filter out the high-frequency noise in the electrical signal output by the rectifier module 20 to the load 50, so as to reduce the noise interference on the output side of the power supply circuit.

[0074] Furthermore, in this embodiment, the second filtering module 70 includes: a second capacitor C2;

[0075] A first end of the second capacitor C2 is connected to the input end of the inductive energy storage module 10 and the power supply 40 , respectively; a second end of the second capacitor C2 is grounded.

[0076] It should be noted that in this embodiment, a grounded second capacitor C2 is also connected between the energy storage inductor L0 and the power supply 40. The second capacitor C2 mainly plays the role of filtering and supporting the voltage to ensure that the voltage between the power supply 40 and the energy storage inductor L0 is stable at a specific voltage output by the power supply 40. In addition, the second capacitor C2 can also be used to improve the influence of the parasitic inductance in the wiring between the power supply 40 and the energy storage inductor L0 on the circuit operation, thereby ensuring the operating stability of the circuit.

[0077] Furthermore, in this embodiment, the third filtering module 80 includes: a third capacitor C3;

[0078] A first end of the third capacitor C3 is respectively connected to the output end of the rectifier module 20 , the second end of the first filter module 30 , and the load 50 , and a second end of the third capacitor C3 is grounded.

[0079] It should be noted that, in this embodiment, the third capacitor C3 mainly plays the role of energy storage, voltage support and filtering, which can ensure that the voltage of the electrical signal received by the load 50 side is more stable, so that the load 50 can work more stably.

[0080] Furthermore, to achieve the aforementioned objectives, embodiments of the present application further provide a power supply device that utilizes all of the embodiments of the power supply circuit described above. Compared to the prior art, the power supply device provided in embodiments of the present application has the same beneficial effects as the power supply circuit provided in the aforementioned embodiments, and other technical features of the power supply device are the same as those disclosed in the aforementioned embodiments, which are not further described here.

[0081] The above are only preferred embodiments of the present application and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent processing scope of the present application.

Claims

1. A power supply circuit, characterized in that: The power supply circuit includes: an inductive energy storage module, a rectifier module and a first filter module; The input end of the inductive energy storage module is used to connect to the power supply, the output end of the inductive energy storage module is respectively connected to the input end of the rectifier module and the first end of the first filter module, and the output end of the rectifier module and the second end of the first filter module are connected to the load; The inductive energy storage module is used to store the electric energy provided by the power supply to form an electric signal, and transmit the electric signal to the load through the rectifier module; The rectifier module is used to rectify the electrical signal transmitted in the connection loop from the inductive energy storage module to the load; The first filtering module is used to perform high-frequency filtering on the electrical signal passing through the rectifier module in the connection loop.

2. The power supply circuit according to claim 1, wherein: The first filtering module includes: a first capacitor; The first end of the first capacitor is connected to the output end of the inductive energy storage module and the input end of the rectifier module respectively, and the second end of the first capacitor is connected to the output end of the rectifier module and the load respectively.

3. The power supply circuit according to claim 1, wherein: The inductive energy storage module includes: an energy storage inductor; The first end of the energy storage inductor is used to connect to the power supply, and the second end of the energy storage inductor is respectively connected to the input end of the rectifier module and the first end of the first filter module.

4. The power supply circuit according to claim 1, wherein: The rectifier module includes: a rectifier diode; The anode of the rectifier diode is respectively connected to the first end of the first filter module and the output end of the inductive energy storage module, and the cathode of the rectifier diode is respectively connected to the second end of the first filter module and the load.

5. The power supply circuit according to claim 1, wherein: The power supply circuit further includes: a voltage regulating module; The output end of the voltage regulating module is respectively connected to the output end of the inductive energy storage module, the first end of the first filtering module and the input end of the rectifier module; the control end of the voltage regulating module is used to receive a high-frequency driving signal; The voltage regulating module is used to adjust the voltage value of the electrical signal output by the inductive energy storage module when receiving the high-frequency driving signal.

6. The power supply circuit according to claim 5, wherein: The voltage regulating module includes: a switch tube; The control end of the switch tube is used to receive the high-frequency drive signal, the input end of the switch tube is respectively connected to the output end of the inductive energy storage module, the first end of the first filter module and the input end of the rectifier module, and the output end of the switch tube is grounded.

7. The power supply circuit according to claim 3, wherein: The power supply circuit further includes: a second filtering module and a third filtering module; The second filter module is respectively connected to the power supply and the input end of the inductive energy storage module; the third filter module is respectively connected to the second end of the filter module, the output end of the rectifier module and the load; The second filtering module is used to filter the electric energy provided by the power supply; The third filtering module is used to filter the electrical signal received by the load.

8. The power supply circuit according to claim 7, wherein: The second filtering module includes: a second capacitor; The first end of the second capacitor is connected to the input end of the inductive energy storage module and the power supply respectively; the second end of the second capacitor is grounded.

9. The power supply circuit according to claim 7, wherein: The third filtering module includes: a third capacitor; A first end of the third capacitor is respectively connected to the output end of the rectifier module, the second end of the first filter module and the load, and a second end of the third capacitor is grounded.

10. A power supply device, characterized in that: The power supply device adopts the power supply circuit according to any one of claims 1 to 9.

Images