A regulator multipath switching power supply circuit

Abstract

The application discloses a kind of voltage stabilizer multipath switching power supply circuit, it is related to voltage stabilizing switching technical field, including power conversion module to direct current energy is inverter, filtering and multipath voltage transformation processing, cooperate first output module, second output module and third output module carry out rectification filtering and voltage stabilizing processing, then provide to road voltage stabilizing direct current energy, by output detection module detects first output module, second output module and third output module and load connection state, so that micro-control module controls multipath switching module will not be connected with load two groups of output module and carry out electric energy superposition processing, then the electric energy after superposition is compensated to direct current energy processing.The voltage stabilizer multipath switching power supply circuit of the application can reduce the input voltage range of direct current energy, improve the utilization rate and conversion efficiency of electric energy.

Description

Technical Field

[0001] This invention relates to the field of voltage regulation switching technology, specifically a voltage regulator multi-channel switching power supply circuit. Background Technology

[0002] Voltage regulator multi-channel power supply circuits generally adopt a DC-AC-AC-DC approach to complete DC-AC conversion, multi-channel AC regulation, and AC-DC conversion. They convert and manage a single, unstable input power supply into multiple different, stable, and clean DC voltages to provide the required power to various chips and modules in electronic systems. Multi-channel AC regulation is generally accomplished using multi-winding transformers. However, when providing multi-channel power supply, the windings that are not undergoing transformation still experience some power loss, reducing the power conversion efficiency. Therefore, improvements are needed. Summary of the Invention

[0003] This invention provides a voltage regulator multi-channel switching power supply circuit to solve the problems mentioned in the background art.

[0004] According to an embodiment of the present invention, a voltage regulator multi-channel switching power supply circuit is provided, comprising:

[0005] The power conversion module is used to invert, filter, and perform multi-channel transformation processing on the input DC power and output the first power, the second power, and the third power.

[0006] The first output module is connected to the power conversion module and is used to rectify and filter the first electrical energy and output the fourth electrical energy, and to regulate the voltage of the fourth electrical energy and supply power to the connected load.

[0007] The second output module is connected to the power conversion module. It is used to rectify and filter the second electrical energy and output the fifth electrical energy, and to regulate the voltage of the fifth electrical energy and supply power to the connected load.

[0008] The third output module is connected to the power conversion module. It is used to rectify and filter the third electrical energy and output the sixth electrical energy, and to regulate the voltage of the sixth electrical energy and supply power to the connected load.

[0009] An output detection module, connected to a first output module, a second output module, and a third output module, is used to output a first detection signal when the first output module is connected to a load, output a second detection signal when the second output module is connected to a load, and output a third detection signal when the third output module is connected to a load.

[0010] The microcontroller module is connected to the output detection module and the power conversion module. It is used to control the power conversion module to perform inverter operation. When the first detection signal and the second detection signal are not received, it outputs the first switching signal. When the second detection signal and the third detection signal are not received, it outputs the second switching signal. When the first detection signal and the third detection signal are not received, it outputs the third switching signal.

[0011] The multi-channel switching module, connected to the power conversion module, the first output module, the second output module, the microcontroller module, and the third output module, is used to switch the power transmission path. When a first switching signal is received, it controls the fourth and fifth power to be superimposed and the superimposed power to compensate for the DC power. When a second switching signal is received, it controls the fifth and sixth power to be superimposed and the superimposed power to compensate for the DC power. When a third switching signal is received, it controls the fourth and sixth power to be superimposed and the superimposed power to compensate for the DC power.

[0012] As a further embodiment of the present invention: the power conversion module includes a power interface, a first capacitor, a first diode, a first inverter, a second capacitor, a first inductor, and an AC bus; the microcontroller module includes a first controller;

[0013] Preferably, the first end of the power interface is connected to the anode of the first diode and the first end of the first capacitor, the cathode of the first diode is connected to the first input end of the first inverter, the second input end of the first inverter is connected to the second end of the first capacitor and the second end of the power port, the first output end of the first inverter is connected to the first end of the first inductor through the second capacitor, the second end of the first inductor is connected to the first end of the AC bus, the second output end of the first inverter is connected to the second end of the AC bus, and the control end of the first inverter is connected to the IO1 end of the first controller.

[0014] As a further embodiment of the present invention: the first output module includes a second diode, a third diode, a third capacitor, a first voltage regulator, a twelfth diode, and a first port; the power conversion module also includes a first transformer;

[0015] Preferably, the anode of the second diode is connected to the first terminal of the secondary side of the first transformer, the first terminal and the second terminal of the primary side of the first transformer are respectively connected to the first terminal and the second terminal of the AC bus, the cathode of the second diode is connected to the cathode of the third diode, the first terminal of the third capacitor and the input terminal of the first voltage regulator, the anode of the third diode is connected to the second terminal of the secondary side of the first transformer, the second terminal of the third capacitor, the ground terminal of the first voltage regulator and the cathode of the twelfth diode, the anode of the twelfth diode is connected to the second terminal of the first port, and the output terminal of the first voltage regulator is connected to the first terminal of the first port.

[0016] As a further embodiment of the present invention: the second output module includes a fourth diode, a fifth diode, a fourth capacitor, a second voltage regulator, a thirteenth diode, and a second port; the power conversion module also includes a second transformer;

[0017] Preferably, the anode of the fourth diode is connected to the first end of the secondary side of the second transformer, the first end and the second end of the primary side of the second transformer are respectively connected to the first end and the second end of the AC bus, the cathode of the fourth diode is connected to the cathode of the fifth diode and the input terminal of the second voltage regulator, and is connected to the anode of the fifth diode, the second end of the secondary side of the second transformer, the ground terminal of the second voltage regulator and the cathode of the thirteenth diode through the fourth capacitor, and the first end and the second end of the second port are respectively connected to the output terminal of the second voltage regulator and the anode of the thirteenth diode.

[0018] As a further embodiment of the present invention: the third output module includes a sixth diode, a seventh diode, a fifth capacitor, a third voltage regulator, a fourteenth diode, and a third port; the power conversion module also includes a third transformer;

[0019] Preferably, the anode of the sixth diode is connected to the first terminal of the secondary side of the third transformer, the first and second terminals of the primary side of the third transformer are respectively connected to the first and second terminals of the AC bus, the cathode of the sixth diode is connected to the cathode of the seventh diode and the input terminal of the third voltage regulator, and is connected to the anode of the seventh diode, the second terminal of the secondary side of the third transformer, the ground terminal of the third voltage regulator and the cathode of the fourteenth diode through the fifth capacitor, and the output terminal of the third voltage regulator and the anode of the fourteenth diode are respectively connected to the first and second terminals of the third port.

[0020] As a further embodiment of the present invention: the multiplexing module includes a first thyristor, a second thyristor, a third thyristor, a fourth thyristor, a fifth thyristor, a sixth thyristor, a seventh thyristor, a tenth diode, an eleventh diode, an eighth diode, and a ninth diode.

[0021] Preferably, the cathode of the first thyristor is connected to the cathode of the second thyristor and the first input terminal of the first inverter; the anode of the first thyristor is connected to the cathode of the fifth diode and the anode of the third thyristor; the anode of the second thyristor is connected to the first terminal of the third capacitor; the cathode of the third thyristor is connected to the second terminal of the third capacitor and the cathode of the seventh thyristor; the cathode of the fifth thyristor is connected to the cathode of the fourth thyristor and the anode of the fifth diode; the anode of the fourth thyristor is connected to the cathode of the seventh diode and the anode of the seventh thyristor; the cathode of the sixth thyristor is connected to the anode of the seventh diode; and the anode of the fifth thyristor is connected to the anode of the sixth thyristor. The anode of the thyristor is connected to the first terminal of the first capacitor. The control terminal of the first thyristor is connected to the control terminal of the fourth thyristor, the anode of the eighth diode, and the IO2 terminal of the first controller. The control terminal of the second thyristor is connected to the cathode of the tenth diode and the cathode of the eleventh diode. The anode of the tenth diode is connected to the control terminal of the third thyristor, the control terminal of the fifth thyristor, and the IO3 terminal of the first controller. The anode of the eleventh diode is connected to the control terminal of the seventh thyristor, the anode of the ninth diode, and the IO4 terminal of the first controller. The cathode of the ninth diode is connected to the cathode of the eighth diode and the control terminal of the sixth thyristor.

[0022] As a further embodiment of the present invention: the output detection module includes a first resistor, a first optocoupler, a first voltage regulator, a second resistor, a first detection device, and a second detection device;

[0023] Preferably, the first end of the first optocoupler is connected to the second end of the first port through a first resistor, the second end of the first optocoupler is grounded, the third end of the first optocoupler is connected to the first voltage regulator, the fourth end of the first optocoupler is connected to the IO5 terminal of the first controller and grounded through a second resistor, the input and output terminals of the first detection device are respectively connected to the second end of the second port and the IO6 terminal of the first controller, and the input and output terminals of the second detection device are respectively connected to the second end of the third port and the IO7 terminal of the first controller.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows: The multi-channel switching power supply circuit of the voltage regulator of the present invention can perform DC power inversion, filtering and multi-channel transformation processing by the power conversion module, and perform rectification, filtering and voltage regulation processing in conjunction with the first output module, the second output module and the third output module, thereby providing the corresponding regulated DC power. The output detection module detects the connection status of the first output module, the second output module and the third output module with the load, so that the microcontroller module controls the multi-channel switching module to perform power superposition processing on the two sets of output modules not connected to the load, and then the superimposed power is used to compensate the DC power, thereby reducing the input voltage range of DC power and improving the utilization rate and conversion efficiency of power. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic block diagram of a voltage regulator multi-channel switching power supply circuit provided in an embodiment of the present invention.

[0027] Figure 2 This is a circuit diagram of a voltage regulator multi-channel switching power supply circuit provided in an embodiment of the present invention.

[0028] Figure 3 This is a first circuit diagram of the output detection module provided in an embodiment of the present invention.

[0029] Figure 4 This is a second circuit diagram of the output detection module provided in an embodiment of the present invention. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] In one embodiment, please refer to Figure 1 A voltage regulator multi-channel switching power supply circuit, comprising:

[0032] The power conversion module 1 is used to invert, filter, and perform multi-channel transformation processing on the input DC power and output the first power, the second power, and the third power.

[0033] The first output module 2 is connected to the power conversion module 1 and is used to rectify and filter the first electrical energy and output the fourth electrical energy, and to regulate the voltage of the fourth electrical energy and supply power to the connected load.

[0034] The second output module 3 is connected to the power conversion module 1 and is used to rectify and filter the second electrical energy and output the fifth electrical energy, stabilize the fifth electrical energy and supply power to the connected load.

[0035] The third output module 4 is connected to the power conversion module 1. It is used to rectify and filter the third electrical energy and output the sixth electrical energy, and to regulate the voltage of the sixth electrical energy and supply power to the connected load.

[0036] The output detection module 5 is connected to the first output module 2, the second output module 3 and the third output module 4, and is used to output a first detection signal when the first output module 2 is connected to the load, output a second detection signal when the second output module 3 is connected to the load, and output a third detection signal when the third output module 4 is connected to the load.

[0037] The microcontroller module 6 is connected to the output detection module 5 and the power conversion module 1. It is used to control the power conversion module 1 to perform inverter operation. When the first detection signal and the second detection signal are not received, it outputs the first switching signal. When the second detection signal and the third detection signal are not received, it outputs the second switching signal. When the first detection signal and the third detection signal are not received, it outputs the third switching signal.

[0038] The multi-channel switching module 7 is connected to the power conversion module 1, the first output module 2, the second output module 3, the microcontroller module 6, and the third output module 4. It is used to switch the power transmission path. When it receives the first switching signal, it controls the fourth power and the fifth power to be superimposed and the superimposed power to compensate the DC power. When it receives the second switching signal, it controls the fifth power and the sixth power to be superimposed and the superimposed power to compensate the DC power. When it receives the third switching signal, it controls the fourth power and the sixth power to be superimposed and the superimposed power to compensate the DC power.

[0039] In specific embodiments, the power conversion module 1 can be a power conversion circuit composed of a power port, inverter, transformer, etc., which can invert, filter, and perform multi-channel voltage transformation on the input DC power to achieve DC-AC and AC-AC operation; the first output module 2 can be a first output circuit composed of diodes, capacitors, voltage regulators, output ports, etc., which can rectify, filter, and regulate the input power and supply power to the connected load; the second output module 3 can be a second output circuit composed of diodes, capacitors, voltage regulators, output ports, etc., which can rectify, filter, and regulate the input power and supply power to the connected load; the third output module 4 can be a third output circuit composed of diodes, capacitors, voltage regulators, output ports, etc., which can rectify, filter, and regulate the input power and supply power to the connected load; the third output module 4 can be a third output circuit composed of diodes, capacitors, voltage regulators, output ports, etc., which can rectify, filter, and regulate the input power and supply power to the connected load. The electrical energy is rectified, filtered, and regulated to supply power to the connected load. The output detection module 5 can be an output detection circuit composed of optocouplers, resistors, and detection devices to detect the connection status of the first output module 2, the second output module 3, and the third output module 4 with the load. The microcontroller module 6 can be a microcontroller circuit composed of a single-chip microcomputer, integrating arithmetic units, controllers, memory, and input / output devices to realize functions such as signal processing, data storage, module control, and timing control. The multiplexing module 7 can be a multiplexing circuit composed of thyristors and resistors to switch the transmission path of electrical energy, enabling the first output module 2, the second output module 3, and the third output module 4 to perform superposition of two sets of electrical energy and to compensate for the DC power.

[0040] In this embodiment, please refer to Figure 2 , Figure 3 and Figure 4 The power conversion module 1 includes a power interface, a first capacitor C1, a first diode D1, a first inverter T1, a second capacitor C2, a first inductor L1, and an AC bus; the microcontroller module 6 includes a first controller U1.

[0041] Specifically, the first end of the power interface is connected to the anode of the first diode D1 and the first end of the first capacitor C1. The cathode of the first diode D1 is connected to the first input end of the first inverter T1. The second input end of the first inverter T1 is connected to the second end of the first capacitor C1 and the second end of the power port. The first output end of the first inverter T1 is connected to the first end of the first inductor L1 through the second capacitor C2. The second end of the first inductor L1 is connected to the first end of the AC bus. The second output end of the first inverter T1 is connected to the second end of the AC bus. The control end of the first inverter T1 is connected to the IO1 end of the first controller U1.

[0042] In a specific embodiment, the power interface can be connected to a smart grid or a battery to access DC power, which can be obtained from the smart grid after rectification or provided by a lithium battery; the first inverter T1 can be composed of four N-channel MOSFETs; the first controller U1 can be an STM32 microcontroller.

[0043] Furthermore, the first output module 2 includes a second diode D2, a third diode D3, a third capacitor C3, a first voltage regulator, a twelfth diode D12, and a first port; the power conversion module 1 also includes a first transformer B1;

[0044] Specifically, the anode of the second diode D2 is connected to the first terminal of the secondary side of the first transformer B1. The first and second terminals of the primary side of the first transformer B1 are connected to the first and second terminals of the AC bus, respectively. The cathode of the second diode D2 is connected to the cathode of the third diode D3, the first terminal of the third capacitor C3, and the input terminal of the first voltage regulator. The anode of the third diode D3 is connected to the second terminal of the secondary side of the first transformer B1, the second terminal of the third capacitor C3, the ground terminal of the first voltage regulator, and the cathode of the twelfth diode D12. The anode of the twelfth diode D12 is connected to the second terminal of the first port. The output terminal of the first voltage regulator is connected to the first terminal of the first port.

[0045] In a specific embodiment, the first voltage regulator can be an LM317 voltage regulator.

[0046] Furthermore, the second output module 3 includes a fourth diode D4, a fifth diode D5, a fourth capacitor C4, a second voltage regulator, a thirteenth diode D13, and a second port; the power conversion module 1 also includes a second transformer B2;

[0047] Specifically, the anode of the fourth diode D4 is connected to the first terminal of the secondary side of the second transformer B2. The first and second terminals of the primary side of the second transformer B2 are respectively connected to the first and second terminals of the AC bus. The cathode of the fourth diode D4 is connected to the cathode of the fifth diode D5 and the input terminal of the second voltage regulator. Through the fourth capacitor C4, it is connected to the anode of the fifth diode D5, the second terminal of the secondary side of the second transformer B2, the ground terminal of the second voltage regulator, and the cathode of the thirteenth diode D13. The first and second terminals of the second port are respectively connected to the output terminal of the second voltage regulator and the anode of the thirteenth diode D13.

[0048] In a specific embodiment, the second voltage regulator can be an LM317 voltage regulator.

[0049] Furthermore, the third output module 4 includes a sixth diode D6, a seventh diode D7, a fifth capacitor C5, a third voltage regulator, a fourteenth diode D14, and a third port; the power conversion module 1 also includes a third transformer B3;

[0050] Specifically, the anode of the sixth diode D6 is connected to the first terminal of the secondary side of the third transformer B3. The first and second terminals of the primary side of the third transformer B3 are connected to the first and second terminals of the AC bus, respectively. The cathode of the sixth diode D6 is connected to the cathode of the seventh diode D7 and the input terminal of the third voltage regulator, and is connected to the anode of the seventh diode D7, the second terminal of the secondary side of the third transformer B3, the ground terminal of the third voltage regulator, and the cathode of the fourteenth diode D14 through the fifth capacitor C5. The output terminal of the third voltage regulator and the anode of the fourteenth diode D14 are connected to the first and second terminals of the third port, respectively.

[0051] In a specific embodiment, the third voltage regulator mentioned above can be an LM317 voltage regulator.

[0052] Furthermore, the multiplexing module 7 includes a first thyristor S1, a second thyristor S2, a third thyristor S3, a fourth thyristor S4, a fifth thyristor S5, a sixth thyristor S6, a seventh thyristor S7, a tenth diode D10, an eleventh diode D11, an eighth diode D8, and a ninth diode D9.

[0053] Specifically, the cathode of the first thyristor S1 is connected to the cathode of the second thyristor S2 and the first input terminal of the first inverter T1; the anode of the first thyristor S1 is connected to the cathode of the fifth diode D5 and the anode of the third thyristor S3; the anode of the second thyristor S2 is connected to the first terminal of the third capacitor C3; the cathode of the third thyristor S3 is connected to the second terminal of the third capacitor C3 and the cathode of the seventh thyristor S7; the cathode of the fifth thyristor S5 is connected to the cathode of the fourth thyristor S4 and the anode of the fifth diode D5; the anode of the fourth thyristor S4 is connected to the cathode of the seventh diode D7 and the anode of the seventh thyristor S7; the cathode of the sixth thyristor S6 is connected to the anode of the seventh diode D7; and the anode of the fifth thyristor S5 is connected to the anode of the sixth thyristor S6. The anode of silicon S6 is connected to the first terminal of the first capacitor C1. The control terminal of the first thyristor S1 is connected to the control terminal of the fourth thyristor S4, the anode of the eighth diode D8, and the IO2 terminal of the first controller U1. The control terminal of the second thyristor S2 is connected to the cathode of the tenth diode D10 and the cathode of the eleventh diode D11. The anode of the tenth diode D10 is connected to the control terminal of the third thyristor S3, the control terminal of the fifth thyristor S5, and the IO3 terminal of the first controller U1. The anode of the eleventh diode D11 is connected to the control terminal of the seventh thyristor S7, the anode of the ninth diode D9, and the IO4 terminal of the first controller U1. The cathode of the ninth diode D9 is connected to the cathode of the eighth diode D8 and the control terminal of the sixth thyristor S6.

[0054] In a specific embodiment, the first thyristor S1, the second thyristor S2, the third thyristor S3, the fourth thyristor S4, the fifth thyristor S5, the sixth thyristor S6, and the seventh thyristor S7 can all be unidirectional thyristors.

[0055] Furthermore, the output detection module 5 includes a first resistor R1, a first optocoupler J1, a first voltage regulator VCC1, a second resistor R2, a first detection device, and a second detection device;

[0056] Specifically, the first end of the first optocoupler J1 is connected to the second end of the first port through the first resistor R1, the second end of the first optocoupler J1 is grounded, the third end of the first optocoupler J1 is connected to the first voltage regulator VCC1, the fourth end of the first optocoupler J1 is connected to the IO5 terminal of the first controller U1 and grounded through the second resistor R2, the input and output terminals of the first detection device are respectively connected to the second end of the second port and the IO6 terminal of the first controller U1, and the input and output terminals of the second detection device are respectively connected to the second end of the third port and the IO7 terminal of the first controller U1.

[0057] In a specific embodiment, the first optocoupler J1 can be a PC817 optocoupler; the circuit composition structure of the first detection device and the circuit composition structure of the second detection device are the same as the circuit composition structure of the first resistor R1, the first optocoupler J1, the first voltage regulator VCC1 and the second resistor R2.

[0058] The working principle of a voltage regulator multi-channel switching power supply circuit in this embodiment is as follows: DC power is input through the power interface. The IO1 terminal of the first controller U1 provides a PWM signal to the first inverter T1, controlling the first inverter T1 to perform inversion operation, processing the DC power. Then, the second capacitor C2 and the first capacitor C1 filter the DC power. The first transformer B1, the second transformer B2, and the third transformer B3 respectively perform voltage transformation and output the first, second, and third electrical energies. The first electrical energy is rectified and filtered by the second diode D2, the third diode D3, and the third capacitor C3 to output the fourth electrical energy. The fourth electrical energy is regulated by the first voltage regulator and supplies power to the load connected to the first port. The second electrical energy is rectified and filtered through the fourth diode D4, the fifth diode D5, and the fourth capacitor C4 to output the fifth electrical energy. The fifth electrical energy is regulated by the second voltage regulator and supplies power to the load connected to the second port. The third electrical energy is rectified and filtered through the sixth diode D6, the seventh diode D7, and the fifth capacitor C5 to output the sixth electrical energy. The sixth electrical energy is regulated by the third voltage regulator and supplies power to the load connected to the third port. The connection status between the first port and the load is detected by the first resistor R1, the first optocoupler J1, the first voltage regulator VCC1, and the second resistor R2. That is, when the first port is connected to the load, a first detection signal with a high level is provided to the IO5 terminal of the first controller U1. Similarly, the third... When the first and second detection devices detect that the second and third ports are connected to the load, respectively, they output a second detection signal and a third detection signal, which are received by the IO6 and IO7 terminals of the first controller U1, respectively. When the first controller U1 does not receive the first and second detection signals, its IO3 terminal outputs a first switching signal to control the third thyristor S3, the second thyristor S2, and the fifth thyristor S5 to conduct. The third thyristor S3 causes the third capacitor C3 and the fourth capacitor C4 to superimpose the fourth and fifth electrical energies, which are then transmitted through the second thyristor S2 and the fifth thyristor S5 and compensated for with the DC energy stored in the first capacitor C1. Similarly, when the first controller U1 does not receive the second and third detection signals, the IO2 terminal of the first controller U1 outputs a second switching signal, controlling the first thyristor S1, the fourth thyristor S4, and the sixth thyristor S6 to conduct. The fifth and sixth electrical energies are superimposed and used to compensate for the DC power. When the first controller U1 does not receive the first and third detection signals, the IO4 terminal of the first controller U1 outputs a third switching signal, controlling the seventh thyristor S7, the second thyristor S2, and the sixth thyristor S6 to conduct. This allows the fourth and sixth electrical energies to be superimposed and used to compensate for the DC power, reducing the input voltage range of the DC power and improving the utilization rate and conversion efficiency of the electrical energy.

[0059] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0060] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A voltage regulator multi-channel switching power supply circuit, characterized in that, The circuit includes: The power conversion module is used to invert, filter, and perform multi-channel transformation processing on the input DC power and output the first power, the second power, and the third power. The first output module is connected to the power conversion module and is used to rectify and filter the first electrical energy and output the fourth electrical energy, and to regulate the voltage of the fourth electrical energy and supply power to the connected load. The second output module is connected to the power conversion module. It is used to rectify and filter the second electrical energy and output the fifth electrical energy, and to regulate the voltage of the fifth electrical energy and supply power to the connected load. The third output module is connected to the power conversion module. It is used to rectify and filter the third electrical energy and output the sixth electrical energy, and to regulate the voltage of the sixth electrical energy and supply power to the connected load. An output detection module, connected to a first output module, a second output module, and a third output module, is used to output a first detection signal when the first output module is connected to a load, output a second detection signal when the second output module is connected to a load, and output a third detection signal when the third output module is connected to a load. The microcontroller module is connected to the output detection module and the power conversion module. It is used to control the power conversion module to perform inverter operation. When the first detection signal and the second detection signal are not received, it outputs the first switching signal. When the second detection signal and the third detection signal are not received, it outputs the second switching signal. When the first detection signal and the third detection signal are not received, it outputs the third switching signal. The multi-channel switching module is connected to the power conversion module, the first output module, the second output module, the microcontroller module, and the third output module. It is used to switch the power transmission path. When it receives the first switching signal, it controls the fourth power and the fifth power to be superimposed and the superimposed power to compensate the DC power. When it receives the second switching signal, it controls the fifth power and the sixth power to be superimposed and the superimposed power to compensate the DC power. When it receives the third switching signal, it controls the fourth power and the sixth power to be superimposed and the superimposed power to compensate the DC power. The multiplexing module includes a first thyristor, a second thyristor, a third thyristor, a fourth thyristor, a fifth thyristor, a sixth thyristor, a seventh thyristor, a tenth diode, an eleventh diode, an eighth diode, and a ninth diode; the microcontroller module includes a first controller; The cathode of the first thyristor is connected to the cathode of the second thyristor and the first input terminal of the first inverter. The anode of the first thyristor is connected to the cathode of the fifth diode and the anode of the third thyristor. The anode of the second thyristor is connected to the first terminal of the third capacitor. The cathode of the third thyristor is connected to the second terminal of the third capacitor and the cathode of the seventh thyristor. The cathode of the fifth thyristor is connected to the cathode of the fourth thyristor and the anode of the fifth diode. The anode of the fourth thyristor is connected to the cathode of the seventh diode and the anode of the seventh thyristor. The cathode of the sixth thyristor is connected to the anode of the seventh diode. The anode of the fifth thyristor is connected to the cathode of the sixth thyristor. The anode of the thyristor is connected to the first terminal of the first capacitor. The control terminal of the first thyristor is connected to the control terminal of the fourth thyristor, the anode of the eighth diode, and the IO2 terminal of the first controller. The control terminal of the second thyristor is connected to the cathode of the tenth diode and the cathode of the eleventh diode. The anode of the tenth diode is connected to the control terminal of the third thyristor, the control terminal of the fifth thyristor, and the IO3 terminal of the first controller. The anode of the eleventh diode is connected to the control terminal of the seventh thyristor, the anode of the ninth diode, and the IO4 terminal of the first controller. The cathode of the ninth diode is connected to the cathode of the eighth diode and the control terminal of the sixth thyristor. The output detection module includes a first resistor, a first optocoupler, a first voltage regulator, a second resistor, a first detection device, and a second detection device; The first end of the first optocoupler is connected to the second end of the first port through the first resistor, the second end of the first optocoupler is grounded, the third end of the first optocoupler is connected to the first voltage regulator, the fourth end of the first optocoupler is connected to the IO5 terminal of the first controller and grounded through the second resistor, the input and output terminals of the first detection device are respectively connected to the second end of the second port and the IO6 terminal of the first controller, and the input and output terminals of the second detection device are respectively connected to the second end of the third port and the IO7 terminal of the first controller.

2. The voltage regulator multi-channel switching power supply circuit according to claim 1, characterized in that, The power conversion module includes a power interface, a first capacitor, a first diode, a first inverter, a second capacitor, a first inductor, and an AC bus. The first end of the power interface is connected to the anode of the first diode and the first end of the first capacitor. The cathode of the first diode is connected to the first input end of the first inverter. The second input end of the first inverter is connected to the second end of the first capacitor and the second end of the power port. The first output end of the first inverter is connected to the first end of the first inductor through the second capacitor. The second end of the first inductor is connected to the first end of the AC bus. The second output end of the first inverter is connected to the second end of the AC bus. The control end of the first inverter is connected to the IO1 end of the first controller.

3. The voltage regulator multi-channel switching power supply circuit according to claim 2, characterized in that, The first output module includes a second diode, a third diode, a third capacitor, a first voltage regulator, a twelfth diode, and a first port; the power conversion module also includes a first transformer; The anode of the second diode is connected to the first terminal of the secondary side of the first transformer. The first terminal and the second terminal of the primary side of the first transformer are respectively connected to the first terminal and the second terminal of the AC bus. The cathode of the second diode is connected to the cathode of the third diode, the first terminal of the third capacitor, and the input terminal of the first voltage regulator. The anode of the third diode is connected to the second terminal of the secondary side of the first transformer, the second terminal of the third capacitor, the ground terminal of the first voltage regulator, and the cathode of the twelfth diode. The anode of the twelfth diode is connected to the second terminal of the first port. The output terminal of the first voltage regulator is connected to the first terminal of the first port.

4. The voltage regulator multi-channel switching power supply circuit according to claim 3, characterized in that, The second output module includes a fourth diode, a fifth diode, a fourth capacitor, a second voltage regulator, a thirteenth diode, and a second port; the power conversion module also includes a second transformer; The anode of the fourth diode is connected to the first end of the secondary side of the second transformer. The first and second ends of the primary side of the second transformer are respectively connected to the first and second ends of the AC bus. The cathode of the fourth diode is connected to the cathode of the fifth diode and the input terminal of the second voltage regulator, and is connected to the anode of the fifth diode, the second end of the secondary side of the second transformer, the ground terminal of the second voltage regulator, and the cathode of the thirteenth diode through the fourth capacitor. The first and second ends of the second port are respectively connected to the output terminal of the second voltage regulator and the anode of the thirteenth diode.

5. A voltage regulator multi-channel switching power supply circuit according to claim 4, characterized in that, The third output module includes a sixth diode, a seventh diode, a fifth capacitor, a third voltage regulator, a fourteenth diode, and a third port; the power conversion module also includes a third transformer; The anode of the sixth diode is connected to the first end of the secondary side of the third transformer. The first and second ends of the primary side of the third transformer are respectively connected to the first and second ends of the AC bus. The cathode of the sixth diode is connected to the cathode of the seventh diode and the input terminal of the third voltage regulator, and is connected to the anode of the seventh diode, the second end of the secondary side of the third transformer, the ground terminal of the third voltage regulator, and the cathode of the fourteenth diode through the fifth capacitor. The output terminal of the third voltage regulator and the anode of the fourteenth diode are respectively connected to the first and second ends of the third port.

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