A multi-cell switched-inductor converter regulating circuit

Abstract

The application discloses a multi-unit switched-inductor converter regulating circuit and relates to the technical field of electric energy conversion.The multi-unit switched-inductor converter regulating circuit comprises a micro-control module, can control an electric energy conversion module to perform single-path power regulation and output stabilized voltage according to a detection signal output by an electric energy detection module, performs double-path power regulation and electric energy regulation when it is required to change output power, i.e., to increase output voltage, changes an electric energy transmission path by a path control module when output voltage is increased again, performs double-path electric energy conversion regulation by a conversion control module and is supplied in series with the electric energy conversion module, changes the electric energy transmission path by the path control module and controls the conversion control module to perform single-path electric energy conversion and to be supplied in parallel with the electric energy conversion module when output current is increased, and transmits electric energy to a second output module by the path control module when double-path power supply is required.The multi-unit switched-inductor converter regulating circuit can increase the output voltage range of a circuit and increase power supply modes.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric energy conversion, and particularly relates to a multi-unit switching inductor converter regulating circuit. BACKGROUND

[0002] The converter regulating circuit has the advantages of simple structure, low cost, easy control and high reliability, and is widely applied to the fields of photovoltaic power generation, hybrid electric vehicles and energy storage systems. The converter regulating circuit in the prior art usually outputs higher voltage by regulating the duty cycle, and in order to improve the voltage gain of the converter, a coupling inductor or a transformer is generally used to perform electric energy conversion processing by using coupling voltage doubling technology or isolation voltage conversion technology. However, when the coupling inductor or the transformer performs voltage conversion, the primary side leakage inductance of the coupling inductor may be generated, which is easy to cause the instability of the power system and even damage the switching device. In order to control the wide output voltage or improve the output power range, a plurality of coupling inductors or transformers are used to perform electric energy conversion processing in a series-parallel manner, which increases the circuit cost and volume, and thus needs to be improved. SUMMARY

[0003] The embodiment of the present application provides a multi-unit switching inductor converter regulating circuit to solve the problems in the background art.

[0004] According to the embodiment of the present application, a multi-unit switching inductor converter regulating circuit is provided, which comprises:

[0005] The electric energy conversion module is connected with the conversion control module, is used for receiving direct current electric energy, performing series superposition processing on the second electric energy output by the conversion control module and the direct current electric energy, and outputting third electric energy, performing single-path energy storage and single-path electric energy conversion processing on the direct current electric energy or the third electric energy, or performing double-path energy storage, double-path electric energy conversion regulation and electric energy superposition processing on the direct current electric energy or the third electric energy, and outputting first electric energy;

[0006] The micro control module is connected with the electric energy detection module, the second output module, the electric energy conversion module, the conversion control module and the path control module, is used for receiving the first sampling signal and the second sampling signal output by the electric energy detection module, and performing voltage stabilization regulation control on the electric energy conversion module and the conversion control module according to the first sampling signal and the second sampling signal, controlling the electric energy conversion module to perform single-path electric energy conversion work, controlling the electric energy conversion module to perform double-path electric energy conversion work when it is needed to increase the output voltage, controlling the conversion control module to perform double-path electric energy conversion regulation work when it is needed to further increase the output voltage, controlling the electric energy conversion module to perform single-path electric energy conversion work and controlling the path control module to transmit electric energy to the first output module when it is needed to increase the output current, and controlling the second output module to perform electric energy transmission work and controlling the path control module to transmit electric energy to the second output module when it is needed to perform double-path power supply control;

[0007] The conversion control module is connected with the first output module and the second output module, and is configured to form a loop with the first output module or the second output module, to store energy and perform double-way energy conversion and regulation processing on the direct-current electric energy, to output the second electric energy, to perform superposition and single-way energy conversion and regulation processing on the stored electric energy and the direct-current electric energy, and to output the fourth electric energy;

[0008] The passage control module is connected with the energy conversion module, the second output module and the conversion control module, and is configured to control the transmission passage of the electric energy, to transmit the fourth electric energy to the energy conversion module and perform voltage compensation and current boosting processing on the first electric energy, and to output the fifth electric energy, to transmit the fourth electric energy to the second output module.

[0009] The first output module is connected with the passage control module and the energy conversion module, and is configured to perform filtering processing on the fifth electric energy or the first electric energy.

[0010] The second output module is configured to transmit the fourth electric energy and perform filtering processing on the fourth electric energy.

[0011] The electric energy detection module is connected with the first output module and the second output module, and is configured to perform voltage sampling on the first output module and the second output module and output first sampling signals and second sampling signals, respectively.

[0012] As a further scheme of the present application, the energy conversion module comprises a power supply interface, a third capacitor, a first inductor, a second inductor, a first power tube, a first diode, a second diode, a first capacitor and a second power tube; and the micro-control module comprises a first controller.

[0013] Preferably, the first end of the power supply interface is connected with the first end of the third capacitor and one end of the first inductor, and the other end of the first capacitor is connected with the cathode of the first diode and the anode of the second diode, the anode of the first diode is connected with the drain of the first power tube and the other end of the first inductor, the cathode of the second diode is connected with the passage control module, the source of the first power tube is connected with the source of the second power tube, the second end of the third capacitor and the second end of the power supply interface, and the gate of the first power tube and the gate of the second power tube are connected with the IO1 end and the IO2 end of the first controller, respectively.

[0014] As a further scheme of the present application, the first output module comprises a third inductor, a second capacitor, a fourth diode and a first port.

[0015] Preferably, the first end of the third inductor is connected with the cathode of the second diode and the passage control module, the second end of the third inductor is connected with the first end of the first port and the anode of the fourth diode through the second capacitor and the second end of the first port, and the cathode of the fourth diode is connected with the conversion control module.

[0016] As a further scheme of the present application: the conversion control module comprises a third power tube, a fourth inductor, a third diode, a sixth diode and a sixth capacitor;

[0017] Preferably, the drain of the third power tube is connected to the first end of the third capacitor, the source of the third power tube is connected to the cathode of the third diode and the anode of the sixth diode and is connected to the second end of the third capacitor through the fourth inductor, the cathode of the sixth diode is connected to the first end of the sixth capacitor, the second end of the sixth capacitor is connected to the path control module, the anode of the third diode is connected to the cathode of the fourth diode and the second output module, and the gate of the third power tube is connected to the IO3 end of the first controller.

[0018] As a further scheme of the present application: the conversion control module further comprises a fourth power tube, a first resistor, a first thyristor, a first switching tube, a fifth diode, a fifth inductor and a fourth capacitor;

[0019] Preferably, the drain of the fourth power tube is connected to the first end of the third capacitor and is connected to the control end of the first thyristor and the collector of the first switching tube through the first resistor, the emitter of the first switching tube is grounded, the base of the first switching tube is connected to the anode of the fifth diode and the IO4 end of the first controller, the cathode of the first thyristor is connected to the second end of the power interface through the fifth inductor, the anode of the first thyristor is connected to the source of the fourth power tube and the path control module and is connected to the cathode of the fourth diode through the fourth capacitor, and the gate of the fourth power tube is connected to the cathode of the fifth diode and the IO5 end of the first controller.

[0020] As a further scheme of the present application: the path control module comprises a second thyristor, a second resistor, a second switching tube and a third thyristor;

[0021] Preferably, one end of the second thyristor is connected to the cathode of the second diode, the other end of the second thyristor is connected to the second end of the sixth capacitor, the cathode of the third thyristor and the second output module, the control end of the second thyristor is connected to the collector of the second switching tube and is connected to the IO6 end of the first controller and the control end of the third thyristor through the second resistor, the base of the second switching tube is connected to the IO7 end of the first controller, the emitter of the second switching tube is grounded, and the anode of the third thyristor is connected to the source of the fourth power tube.

[0022] As a further scheme of the present application: the path control module further comprises a fourth thyristor;

[0023] Preferably, the cathode of the fourth thyristor is connected to the second end of the power interface, the anode of the fourth thyristor is connected to the second end of the first port, and the control end of the fourth thyristor is connected to the IO6 end of the first controller.

[0024] As a further scheme of the present application: the second output module comprises a fifth thyristor, a sixth inductor, a fifth capacitor, a second port and a seventh diode;

[0025] Preferably, the anode of the fifth thyristor is connected to the cathode of the third thyristor, the cathode of the fifth thyristor is connected to the first end of the second port and one end of the fifth capacitor through the sixth inductor, the other end of the fifth capacitor is connected to the anode of the seventh diode and the second end of the second port, the cathode of the seventh diode is connected to the anode of the third diode, and the control end of the fifth thyristor is connected to the IO7 end of the first controller.

[0026] As a further scheme of the present application: the electric energy detection module comprises a third resistor and a fourth resistor;

[0027] Preferably, one end of the third resistor is connected to the first end of the first port, and the other end of the third resistor is connected to the IO8 end of the first controller and connected to the second end of the first port through the fourth resistor.

[0028] As a further scheme of the present application: the electric energy detection module further comprises a fifth resistor and a sixth resistor;

[0029] Preferably, one end of the fifth resistor is connected to the first end of the second port, and the other end of the fifth resistor is connected to the IO9 end of the first controller and connected to the second end of the second port through the sixth resistor.

[0030] Compared with the prior art, the present application has the following beneficial effects: the multi-cell switching inductor converter regulating circuit can control the electric energy conversion module to perform single-path power regulation and output stable voltage according to the detection signal output by the electric energy detection module. When it is necessary to change the output power, i.e. to increase the output voltage, the electric energy conversion module can be controlled to perform double-path power regulation and electric energy regulation processing. When it is necessary to further increase the output voltage, the electric energy transmission path is changed by the path control module, and the double-path electric energy conversion regulation work is performed by the conversion control module, and the electric energy conversion module is supplied in series to increase the output voltage range of the circuit. When it is necessary to increase the output current, the electric energy transmission path is changed by the path control module, and the single-path electric energy conversion work is controlled by the conversion control module, and the electric energy conversion module is supplied in parallel. When double-path power supply is required, the electric energy is transmitted to the second output module by the path control module to increase the power supply mode. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the description of the embodiments of the present application will be briefly introduced. Obviously, 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 creating laborious work.

[0032] Figure 1 A principle block diagram of a multi-cell switched-inductor converter regulating circuit is provided for the embodiment of the present application.

[0033] Figure 2 A circuit diagram of a multi-cell switched-inductor converter regulating circuit is provided for the embodiment of the present application.

[0034] Figure 3 A circuit diagram of a conversion control module is provided for the embodiment of the present application.

[0035] Figure 4 A first circuit diagram of a channel control module is provided for the embodiment of the present application.

[0036] Figure 5 A second circuit diagram of a channel control module is provided for the embodiment of the present application.

[0037] Figure 6 A circuit diagram of a second output module is provided for the embodiment of the present application.

[0038] Figure 7 A circuit diagram of an electric energy detection module is provided for the embodiment of the present application. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0040] In one embodiment, referring to Figure 1 A multi-cell switched-inductor converter regulating circuit includes:

[0041] The electric energy conversion module 1 is connected with the conversion control module 2, used for receiving direct current electric energy, performing series superposition processing on the second electric energy output by the conversion control module 2 and the direct current electric energy, and outputting third electric energy, performing single-path energy storage and single-path electric energy conversion processing on the direct current electric energy or the third electric energy, or performing double-path energy storage, double-path electric energy conversion regulation and electric energy superposition processing on the direct current electric energy or the third electric energy, and outputting first electric energy.

[0042] The micro control module 7 is connected with the electric energy detection module 6, the second output module 5, the electric energy conversion module 1, the conversion control module 2 and the passage control module 3, and is used for receiving the first sampling signal and the second sampling signal output by the electric energy detection module 6, and performing voltage stabilizing adjustment control on the electric energy conversion module 1 and the conversion control module 2 according to the first sampling signal and the second sampling signal, controlling the electric energy conversion module 1 to perform single-path electric energy conversion work, controlling the electric energy conversion module 1 to perform double-path electric energy conversion work when the output voltage needs to be increased, controlling the conversion control module 2 to perform double-path electric energy conversion adjustment work when the output voltage needs to be increased again, controlling the electric energy conversion module 1 to perform single-path electric energy conversion work and controlling the passage control module 3 to transmit electric energy to the first output module 4 when the output current needs to be increased, and controlling the second output module 5 to perform electric energy transmission work and controlling the passage control module 3 to transmit electric energy to the second output module 5 when double-path power supply control is needed.

[0043] The conversion control module 2 is connected with the first output module 4 and the second output module 5, and is used for forming a loop with the first output module 4 or the second output module 5 to perform energy storage and double-path electric energy conversion adjustment processing on the direct-current electric energy, output the second electric energy, superimpose the stored electric energy on the direct-current electric energy, perform single-path electric energy conversion adjustment processing, and output the fourth electric energy.

[0044] The passage control module 3 is connected with the electric energy conversion module 1, the second output module 5 and the conversion control module 2, and is used for controlling the transmission passage of electric energy, transmitting the fourth electric energy to the electric energy conversion module 1 and performing voltage compensation and current increase processing on the first electric energy, outputting the fifth electric energy, and transmitting the fourth electric energy to the second output module 5.

[0045] The first output module 4 is connected with the passage control module 3 and the electric energy conversion module 1, and is used for performing filtering processing on the fifth electric energy or the first electric energy.

[0046] The second output module 5 is used for transmitting the fourth electric energy and performing filtering processing on the fourth electric energy.

[0047] The electric energy detection module 6 is connected with the first output module 4 and the second output module 5, and is used for performing voltage sampling on the first output module 4 and the second output module 5 and outputting the first sampling signal and the second sampling signal respectively.

[0048] In a specific embodiment, the above-mentioned electric energy conversion module 1 can adopt an electric energy conversion circuit composed of a power interface, an inductor, a field effect transistor, a diode, etc., can be connected to direct current, and can perform single-channel energy storage or double-channel energy storage on the connected direct current. When single-channel energy storage is performed, single-channel power regulation is performed, and when double-channel energy storage is performed, double-channel power regulation and electric energy superposition processing are performed. The above-mentioned conversion control module 2 can adopt a conversion control circuit composed of a field effect transistor, a thyristor, a triode, an inductor, etc., can perform single-channel energy storage or double-channel energy storage, and when single-channel energy storage is performed, electric energy superposition is performed with the electric energy conversion module 1 and single-channel power regulation is performed, and when double-channel energy storage is performed, double-channel power regulation and electric energy superposition processing are performed, and then series superposition with the electric energy conversion module 1 is performed. The above-mentioned path control module 3 can adopt a path control circuit composed of a thyristor, a resistor, and a triode, can change an electric energy transmission path, control the conversion control module 2 and the first output module 4 to form a loop, control the electric energy conversion module 1 and the first output module 4 to form a loop, and control the conversion control module 2 and the second output module 5 to form a loop. The above-mentioned first output module 4 can adopt a first output circuit composed of an inductor, a capacitor, a diode, and an output port, and can perform filtering and electric energy output. The above-mentioned second output module 5 can adopt a second output circuit composed of an inductor, a thyristor, an output port, etc., can control the transmission state of electric energy and perform filtering and electric energy output. The above-mentioned electric energy detection module 6 can adopt an electric energy detection circuit composed of a resistor, and can perform voltage sampling on the first output module 4 and the second output module 5. The above-mentioned micro control module 7 can adopt a micro control circuit composed of a single-chip microcomputer, integrates an operator, a controller, a memory, and an input-output device, etc., and can realize signal processing, data storage, module control, timing control, etc.

[0049] In another embodiment, please refer to Figure 1 , Figure 2 and Figure 3 , the electric energy conversion module 1 includes a power interface, a third capacitor C3, a first inductor L1, a second inductor L2, a first power tube Q1, a first diode D1, a second diode D2, a first capacitor C1, and a second power tube Q2. The micro control module 7 includes a first controller U1.

[0050] Specifically, the first end of the power interface is connected to the first end of the third capacitor C3 and the first end of the first inductor L1, and is connected to the first end of the first capacitor C1 and the drain of the second power transistor Q2 through the second inductor L2. The other end of the first capacitor C1 is connected to the cathode of the first diode D1 and the anode of the second diode D2. The anode of the first diode D1 is connected to the drain of the first power transistor Q1 and the other end of the first inductor L1. The cathode of the second diode D2 is connected to the path control module 3. The source of the first power transistor Q1 is connected to the source of the second power transistor Q2, the second end of the third capacitor C3 and the second end of the power interface. The gate of the first power transistor Q1 and the gate of the second power transistor Q2 are respectively connected to the IO1 and IO2 terminals of the first controller U1.

[0051] In a specific embodiment, the first power transistor Q1 can be an N-channel MOSFET, which controls the first inductor L1 to store and discharge energy and works with the first diode D1 and the second diode D2 to perform single-channel power conversion and regulation. The second power transistor Q2 can be an N-channel MOSFET, which controls the second inductor L2 to store and discharge energy and works with the first capacitor C1 to perform single-channel power conversion and regulation and power superposition. The first controller U1 can be an STM32 microcontroller.

[0052] Furthermore, the first output module 4 includes a third inductor L3, a second capacitor C2, a fourth diode D4, and a first port;

[0053] Specifically, the first end of the third inductor L3 is connected to the cathode of the second diode D2 and the path control module 3, the second end of the third inductor L3 is connected to the first end of the first port and connected to the anode of the fourth diode D4 and the second end of the first port through the second capacitor C2, and the cathode of the fourth diode D4 is connected to the transformation control module 2.

[0054] In a specific embodiment, the third inductor L3 and the second capacitor C2 are subjected to filtering processing.

[0055] Furthermore, the conversion control module 2 includes a third power transistor Q3, a fourth inductor L4, a third diode D3, a sixth diode D6, and a sixth capacitor C6;

[0056] Specifically, the drain of the third power transistor Q3 is connected to the first terminal of the third capacitor C3, the source of the third power transistor Q3 is connected to the cathode of the third diode D3 and the anode of the sixth diode D6 and is connected to the second terminal of the third capacitor C3 through the fourth inductor L4, the cathode of the sixth diode D6 is connected to the first terminal of the sixth capacitor C6, the second terminal of the sixth capacitor C6 is connected to the path control module 3, the anode of the third diode D3 is connected to the cathode of the fourth diode D4 and the second output module 5, and the gate of the third power transistor Q3 is connected to the IO3 terminal of the first controller U1.

[0057] In specific embodiments, the third power tube Q3 can be an N-channel field effect tube, and the fourth inductor L4 is used for energy storage, and the third diode D3 is used for power regulation.

[0058] Further, the conversion control module 2 further comprises a fourth power tube Q4, a first resistor R1, a first thyristor S1, a first switch tube V1, a fifth diode D5, a fifth inductor L5, and a fourth capacitor C4.

[0059] Specifically, the drain of the fourth power tube Q4 is connected to the first end of the third capacitor C3 and the control end of the first thyristor S1 and the collector of the first switch tube V1 through the first resistor R1, the emitter of the first switch tube V1 is grounded, the base of the first switch tube V1 is connected to the anode of the fifth diode D5 and the IO4 end of the first controller U1, the cathode of the first thyristor S1 is connected to the second end of the power interface through the fifth inductor L5, the anode of the first thyristor S1 is connected to the source of the fourth power tube Q4 and the path control module 3 and the cathode of the fourth diode D4 through the fourth capacitor C4, and the gate of the fourth power tube Q4 is connected to the cathode of the fifth diode D5 and the IO5 end of the first controller U1.

[0060] In specific embodiments, the fourth power tube Q4 can be an N-channel field effect tube, the first thyristor S1 can be a single-phase thyristor, and the first switch tube V1 is controlled and cut off.

[0061] In another embodiment, please refer to Figure 1 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 The path control module 3 comprises a second thyristor S2, a second resistor R2, a second switch tube V2, and a third thyristor S3.

[0062] Specifically, one end of the second thyristor S2 is connected to the cathode of the second diode D2, the other end of the second thyristor S2 is connected to the second end of the sixth capacitor C6, the cathode of the third thyristor S3, and the second output module 5, the control end of the second thyristor S2 is connected to the collector of the second switch tube V2 and the IO6 end of the first controller U1 and the control end of the third thyristor S3 through the second resistor R2, the base of the second switch tube V2 is connected to the IO7 end of the first controller U1, the emitter of the second switch tube V2 is grounded, and the anode of the third thyristor S3 is connected to the source of the fourth power tube Q4.

[0063] In specific embodiments, the second thyristor S2 can be a bidirectional thyristor, the third thyristor S3 can be a unidirectional thyristor, and the second switch tube V2 can be an NPN triode.

[0064] Further, the path control module 3 further comprises a fourth thyristor S4.

[0065] Specifically, the cathode of the fourth SCR S4 is connected to the second end of the power interface, the anode of the fourth SCR S4 is connected to the second end of the first port, and the control terminal of the fourth SCR S4 is connected to the IO6 terminal of the first controller U1.

[0066] In specific embodiments, the fourth SCR S4 can be a unidirectional SCR.

[0067] Further, the second output module 5 includes a fifth SCR S5, a sixth inductor L6, a fifth capacitor C5, a second port, and a seventh diode D7.

[0068] Specifically, the anode of the fifth SCR S5 is connected to the cathode of the third SCR S3, the cathode of the fifth SCR S5 is connected to the first end of the second port and one end of the fifth capacitor C5 through the sixth inductor L6, the other end of the fifth capacitor C5 is connected to the anode of the seventh diode D7 and the second end of the second port, the cathode of the seventh diode D7 is connected to the anode of the third diode D3, and the control terminal of the fifth SCR S5 is connected to the IO7 terminal of the first controller U1.

[0069] In specific embodiments, the fifth SCR S5 can be a unidirectional SCR.

[0070] Further, the power detection module 6 includes a third resistor R3 and a fourth resistor R4.

[0071] Specifically, one end of the third resistor R3 is connected to the first end of the first port, and the other end of the third resistor R3 is connected to the IO8 terminal of the first controller U1 and the second end of the first port through the fourth resistor R4.

[0072] In specific embodiments, the third resistor R3 and the fourth resistor R4 sample the voltage of the first port by voltage division.

[0073] Further, the power detection module 6 also includes a fifth resistor R5 and a sixth resistor R6.

[0074] Specifically, one end of the fifth resistor R5 is connected to the first end of the second port, and the other end of the fifth resistor R5 is connected to the IO9 terminal of the first controller U1 and the second end of the second port through the sixth resistor R6.

[0075] In specific embodiments, the fifth resistor R5 and the sixth resistor R6 sample the voltage of the second port by voltage division.

[0076] The first controller U1 controls the first power tube Q1 to be conductive, and controls the energy storage and discharge state of the first inductor L1. The first diode D1 and the second diode D2 are used for power regulation. When the conversion control module 2 does not work, the IO6 end of the first controller U1 controls the fourth thyristor S4 to be conductive, so that the power supply interface and the first port form a loop. The adjusted power is filtered by the third inductor L3 and the second capacitor C2, and then transmitted to the first port. When the output voltage needs to be further improved and the conversion control module 2 still does not work, the IO2 end of the first controller U1 controls the conduction state of the second power tube Q2. The second inductor L2 stores and discharges energy, and the released energy is superimposed with the energy transmitted by the first capacitor C1 and the first diode D1. The superimposed energy is transmitted to the first port after being processed by the third inductor L3 and the second capacitor C2. When the output voltage needs to be further improved, the IO6 end of the first controller U1 does not work, and the IO3 end and the I05 end of the first controller U1 control the conduction states of the third power tube Q3 and the fourth power tube Q4 respectively, thereby controlling the energy storage and discharge states of the fourth inductor L4 and the fifth inductor L5 respectively. The first resistor R1 triggers the first thyristor S1 to be conductive, and the fourth capacitor C4, the third diode D3 and the fourth diode D4 are used for double-channel power conversion regulation and energy superposition processing. The superimposed energy is supplied in series with the direct current power supplied by the power supply interface. The conversion control module 2 and the power conversion module 1 are connected in series to supply power to the first port. When the output current needs to be improved, the IO4 end of the first controller U1 controls the first switch V1 and the fourth power tube Q4 to be conductive, and the first thyristor S1 is cut off. The IO6 end of the first controller U1 controls the second thyristor S2, the third thyristor S3 and the fourth thyristor S4 to be conductive. At this time, the IO3 end of the first controller U1 controls the conduction state of the third power tube Q3. The fourth inductor L4, the third diode D3, the sixth capacitor C6, the sixth diode D6 and the fourth capacitor C4 are used for single-channel power conversion processing. The output energy is transmitted by the second thyristor S2 and is used for compensating and increasing the current of the energy transmitted by the second diode D2. The third inductor L3 and the second capacitor C2 filter the energy and transmit it to the first port. When double-channel power supply is needed, the conversion control module 2 works in single-channel power conversion mode, and the IO7 end of the first controller U1 controls the second switch V2 and the fifth thyristor S5 to be conductive, so that the second thyristor S2 is cut off. The energy output by the conversion control module 2 is transmitted by the fifth thyristor S5, filtered by the sixth inductor L6 and the fifth capacitor C5, and then transmitted to the second port. The third resistor R3 and the fourth resistor R4 sample the voltage of the first port, and the fifth resistor R5 and the sixth resistor R6 sample the voltage of the second port. The sampled signals are received by the IO8 end and the I09 end of the first controller U1 respectively.So that the first controller U1 controls the conducting state of the first power tube Q1, the second power tube Q2, the third power tube Q3 and the fourth power tube Q4, adjusts the output power of the electric energy conversion module 1 and the conversion control module 2, then meets the required electric energy power output, realizes the steady voltage power supply control.

[0077] It is apparent for the person skilled in the art that the present application is not limited to the details of the above described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and not restrictive, the scope of the present application being defined by the appended claims rather than by the above description, and it is therefore intended that all changes which come within the meaning and range of equivalency of the claims are embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

[0078] Furthermore, it should be understood that although the present specification is described in terms of embodiments, not every embodiment according to the present specification needs to exhibit each and every characteristic specified in the specification. The specification can also be described in terms of a single method or process, even though only a portion of the procedures of the method or process are specifically mentioned, or even though a procedure that is not specifically mentioned is inherent in the method or process. The specification can also be described in terms of a system or apparatus, even though only a portion of the system or apparatus is specifically mentioned, or even though a portion of the system or apparatus that is not specifically mentioned is inherent in the system or apparatus.

Claims

1. A regulating circuit for a multi-unit switching inductor converter, characterized in that, The circuit includes: The power conversion module, connected to the conversion control module, is used to receive DC power, perform series superposition processing of the second power output from the conversion control module and the DC power to output the third power, perform single-channel energy storage and single-channel power conversion processing on the DC power or the third power, or perform dual-channel energy storage, dual-channel power conversion regulation and power superposition processing on the DC power or the third power to output the first power; The microcontroller module, connected to the power detection module, the second output module, the power conversion module, the conversion control module, and the path control module, receives the first and second sampling signals output by the power detection module. Based on these signals, it regulates and controls the power conversion module and the conversion control module. Specifically, it controls the power conversion module to perform single-channel power conversion, and when an increase in output voltage is needed, it controls it to perform dual-channel power conversion. When an increase in output voltage is required again, it controls the conversion control module to perform dual-channel power conversion regulation. When an increase in output current is needed, it controls the power conversion module to perform single-channel power conversion and controls the path control module to transmit power to the first output module. When dual-channel power supply control is required, it controls the second output module to perform power transmission and controls the path control module to transmit power to the second output module. The conversion control module is connected to the first output module and the second output module. It is used to form a circuit with the first output module or the second output module to store DC power and perform dual-channel power conversion and regulation processing, output the second power, superimpose the stored power and DC power and perform single-channel power conversion and regulation processing, and output the fourth power. The path control module, connected to the power conversion module, the second output module and the conversion control module, is used to control the power transmission path, transmit the fourth power to the power conversion module and perform voltage compensation and current boosting on the first power, output the fifth power, and transmit the fourth power to the second output module. The first output module is connected to the path control module and the power conversion module, and is used to filter the fifth power or the first power. The second output module is used to transmit the fourth electrical energy and filter it. The power detection module is connected to the first output module and the second output module, and is used to sample the voltage of the first output module and the second output module and output the first sampling signal and the second sampling signal respectively. The conversion control module includes a third power transistor, a fourth inductor, a third diode, a sixth diode, and a sixth capacitor; the microcontroller module includes a first controller; The drain of the third power transistor is connected to the first terminal of the third capacitor. The source of the third power transistor is connected to the cathode of the third diode and the anode of the sixth diode and is connected to the second terminal of the third capacitor through the fourth inductor. The cathode of the sixth diode is connected to the first terminal of the sixth capacitor. The second terminal of the sixth capacitor is connected to the path control module. The anode of the third diode is connected to the cathode of the fourth diode and the second output module. The gate of the third power transistor is connected to the IO3 terminal of the first controller. The conversion control module also includes a fourth power transistor, a first resistor, a first thyristor, a first switching transistor, a fifth diode, a fifth inductor, and a fourth capacitor; The drain of the fourth power transistor is connected to the first terminal of the third capacitor and is connected to the control terminal of the first thyristor and the collector of the first switching transistor through the first resistor. The emitter of the first switching transistor is grounded. The base of the first switching transistor is connected to the anode of the fifth diode and the IO4 terminal of the first controller. The cathode of the first thyristor is connected to the second terminal of the power interface through the fifth inductor. The anode of the first thyristor is connected to the source of the fourth power transistor and the path control module and is connected to the cathode of the fourth diode through the fourth capacitor. The gate of the fourth power transistor is connected to the cathode of the fifth diode and the IO5 terminal of the first controller.

2. The multi-unit switching inductor converter adjustment circuit according to claim 1, characterized in that, The power conversion module includes a power interface, a third capacitor, a first inductor, a second inductor, a first power transistor, a first diode, a second diode, a first capacitor, and a second power transistor. The first end of the power interface is connected to the first end of the third capacitor and the first end of the first inductor, and is connected to the first end of the first capacitor and the drain of the second power transistor through the second inductor. The other end of the first capacitor is connected to the cathode of the first diode and the anode of the second diode. The anode of the first diode is connected to the drain of the first power transistor and the other end of the first inductor. The cathode of the second diode is connected to the path control module. The source of the first power transistor is connected to the source of the second power transistor, the second end of the third capacitor, and the second end of the power interface. The gate of the first power transistor and the gate of the second power transistor are respectively connected to the IO1 and IO2 terminals of the first controller.

3. The multi-unit switching inductor converter adjustment circuit according to claim 2, characterized in that, The first output module includes a third inductor, a second capacitor, a fourth diode, and a first port; The first end of the third inductor is connected to the cathode of the second diode and the path control module. The second end of the third inductor is connected to the first end of the first port and is connected to the anode of the fourth diode and the second end of the first port through the second capacitor. The cathode of the fourth diode is connected to the transformation control module.

4. The multi-unit switching inductor converter adjustment circuit according to claim 3, characterized in that, The path control module includes a second thyristor, a second resistor, a second switch, and a third thyristor; One end of the second thyristor is connected to the cathode of the second diode, and the other end of the second thyristor is connected to the second terminal of the sixth capacitor, the cathode of the third thyristor, and the second output module. The control terminal of the second thyristor is connected to the collector of the second switching transistor and is connected to the IO6 terminal of the first controller and the control terminal of the third thyristor through the second resistor. The base of the second switching transistor is connected to the IO7 terminal of the first controller. The emitter of the second switching transistor is grounded. The anode of the third thyristor is connected to the source of the fourth power transistor.

5. The multi-unit switching inductor converter adjustment circuit according to claim 4, characterized in that, The pathway control module also includes a fourth thyristor; The cathode of the fourth thyristor is connected to the second end of the power interface, the anode of the fourth thyristor is connected to the second end of the first port, and the control terminal of the fourth thyristor is connected to the IO6 terminal of the first controller.

6. The multi-unit switching inductor converter adjustment circuit according to claim 5, characterized in that, The second output module includes a fifth thyristor, a sixth inductor, a fifth capacitor, a second port, and a seventh diode; The anode of the fifth thyristor is connected to the cathode of the third thyristor. The cathode of the fifth thyristor is connected to the first end of the second port and one end of the fifth capacitor through the sixth inductor. The other end of the fifth capacitor is connected to the anode of the seventh diode and the second end of the second port. The cathode of the seventh diode is connected to the anode of the third diode. The control terminal of the fifth thyristor is connected to the IO7 terminal of the first controller.

7. The multi-unit switching inductor converter adjustment circuit according to claim 2, characterized in that, The power detection module includes a third resistor and a fourth resistor; One end of the third resistor is connected to the first end of the first port, and the other end of the third resistor is connected to the IO8 terminal of the first controller and connected to the second end of the first port through the fourth resistor.

8. The multi-unit switching inductor converter adjustment circuit according to claim 2, characterized in that, The power detection module also includes a fifth resistor and a sixth resistor; One end of the fifth resistor is connected to the first end of the second port, and the other end of the fifth resistor is connected to the IO9 terminal of the first controller and connected to the second end of the second port through the sixth resistor.

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