Intelligent voltage regulation control circuit for high-frequency transformer

By designing an intelligent voltage regulation control circuit for high-frequency transformers and utilizing the collaborative work of multiple modules, diverse voltage regulation of high-frequency transformers is achieved, solving the problem of low voltage gain in existing technologies and improving power supply efficiency and voltage control flexibility.

CN121546926BActive Publication Date: 2026-05-08GUANGDONG BESTEK E COMMERCE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GUANGDONG BESTEK E COMMERCE CO LTD
Filing Date
2026-01-15
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing high-frequency transformers cannot perform voltage expansion, voltage fine-tuning, or voltage reduction control as required, resulting in low voltage gain.

Method used

A high-frequency transformer intelligent voltage regulation control circuit is designed, including a first voltage regulation module, a second voltage regulation module, a transformer output module, an auxiliary control module, and a microcontroller module. The microcontroller module controls the working state of each module to realize inversion, filtering, transformation, rectification, and energy superposition, achieving diverse voltage regulation.

Benefits of technology

The voltage gain was increased, enabling flexible control of voltage expansion, voltage fine-tuning, and buck power supply, thereby improving power supply efficiency.

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Patent Text Reader

Abstract

The application discloses a high-frequency transformer intelligent voltage regulation control circuit, and relates to the technical field of transformer voltage regulation, which comprises a micro-control module, a control variable output module, direct current power inversion, filtering, voltage transformation and rectification processing and power supply for connected electrical equipment, when expansion voltage supply is needed, the first voltage regulation module is controlled to invert and superimpose power with the variable output module, when voltage fine adjustment is needed, the second voltage regulation module is controlled to self-boost and superimpose power with the variable output module, when voltage reduction is needed, the auxiliary control module is controlled to rectify and store energy, and when the direct current power connected with the variable output module is powered off, the auxiliary control module is controlled to release stored power. The high-frequency transformer intelligent voltage regulation control circuit can realize power distribution, increase output voltage width, improve power supply efficiency, improve voltage gain and realize diverse voltage regulation.
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Description

Technical Field

[0001] This invention relates to the field of transformer voltage regulation technology, specifically a high-frequency transformer intelligent voltage regulation control circuit. Background Technology

[0002] As a key component in power systems responsible for energy transmission, safety isolation, and circuit operation, high-frequency transformers are generally used in conjunction with inverters composed of switching transistors to achieve inversion and AC power regulation. Alternatively, they can be connected in series with a set of auxiliary transformers for voltage amplification. However, this approach cannot perform voltage amplification, voltage fine-tuning, or voltage reduction control as needed, resulting in low voltage gain. Therefore, improvements are needed. Summary of the Invention

[0003] This invention provides an intelligent voltage regulation control circuit for high-frequency transformers to solve the problems mentioned in the background art.

[0004] According to an embodiment of the present invention, a high-frequency transformer intelligent voltage regulation control circuit is provided, comprising:

[0005] The first voltage regulating module is connected to the transformer output module and is used to invert and filter the DC power input to the transformer output module and output the second power, and transmit the second power to the transformer output module.

[0006] The second voltage regulating module is connected to the transformer output module. It is used to perform self-boosting processing on the first electrical energy output by the transformer output module and output the third electrical energy. As the self-boosting working time increases, the third electrical energy is boosted and regulated.

[0007] The transformer output module, connected to the auxiliary control module, is used to invert, filter, and transform the input DC power and output the first power; stabilize the DC power and transmit the first power; rectify the first power; when receiving the second power, superimpose and rectify the first power and the second power; when receiving the third power, superimpose and rectify the third power and the first power; when the auxiliary control module is working, perform voltage division processing on the first power and output the fourth power; and transmit the rectified power or the backup power output by the auxiliary control module to the connected electrical equipment.

[0008] The auxiliary control module is used to rectify and store the fourth electrical energy, release the stored electrical energy and perform voltage boosting to provide backup power.

[0009] The microcontroller module, connected to the transformer output module, the first voltage regulator module, the second voltage regulator module, and the auxiliary control module, is used to control the transformer output module to perform inverter operation. When voltage boosting is required, it controls the first voltage regulator module to perform inverter operation and power transmission, and controls the transformer output module to perform power superposition. When voltage fine-tuning is required, it controls the second voltage regulator module to perform self-boosting, and controls the transformer output module to perform power superposition. When voltage bucking is required, it controls the auxiliary control module to perform rectification operation. When the DC power connected to the transformer output module is interrupted, it controls the auxiliary control module to release the stored power.

[0010] As a further embodiment of the present invention: the transformer output module includes a power port, a first inverter, a first capacitor, a first inductor, and a first transformer; the microcontroller module includes a first controller;

[0011] Preferably, the first and second ends of the power supply port are respectively connected to the first and second input ends of the first inverter, the first output end of the first inverter is connected to the first end of the primary side of the first transformer through the first capacitor and the first inductor in sequence, the second output end of the first inverter is connected to the second end of the primary side of the first transformer, and the drive end of the first inverter is connected to the IO1 end of the first controller.

[0012] As a further embodiment of the present invention: the transformer output module further includes a voltage regulation device, a first resistor, a first switching transistor, a first diode, a second diode, a first thyristor, and a second transformer;

[0013] Preferably, the first input terminal and the second input terminal of the voltage regulator are respectively connected to the first terminal and the second terminal of the power supply port. The output terminal of the voltage regulator is connected to the collector of the first switching transistor and the control terminal of the first thyristor through the first resistor. The first terminal of the first thyristor is connected to the first terminal and the second terminal of the secondary side of the second transformer. The second terminal of the first thyristor is connected to the second terminal of the secondary side of the second transformer. The emitter of the first switching transistor is grounded. The anode of the first diode and the anode of the second diode are respectively connected to the IO3 terminal and the IO4 terminal of the first controller. The base of the first switching transistor is connected to the cathode of the first diode and the cathode of the second diode.

[0014] As a further embodiment of the present invention: the transformer output module further includes a third diode, a fourth diode, a fifth diode, a sixth diode, a third capacitor, and an output port;

[0015] Preferably, the cathode of the third diode is connected to the cathode of the fifth diode and the first end of the output port, and is connected to the second end of the output port, the anode of the fourth diode, the anode of the sixth diode and the ground terminal through the third capacitor. The anode of the third diode is connected to the cathode of the fourth diode and the first end of the secondary side of the first transformer. The anode of the fifth diode is connected to the cathode of the sixth diode and the second end of the first thyristor.

[0016] As a further embodiment of the present invention: the first voltage regulation module includes a second inverter, a second capacitor, a second inductor, a third thyristor, and a fourth thyristor;

[0017] Preferably, the first input terminal and the second input terminal of the second inverter are respectively connected to the first terminal and the second terminal of the power supply port. The first output terminal of the second inverter is connected to one terminal of the fourth thyristor in sequence through the second capacitor and the second inductor. The second output terminal of the second inverter is connected to one terminal of the third thyristor. The other terminals of the third thyristor and the fourth thyristor are respectively connected to the second terminal and the first terminal of the primary side of the second transformer. The control terminals of the third thyristor and the fourth thyristor are both connected to the IO4 terminal of the first controller. The drive terminal of the second inverter is connected to the IO2 terminal of the first controller.

[0018] As a further embodiment of the present invention: the second voltage regulating module includes a second thyristor, a first power transistor, and a second power transistor;

[0019] Preferably, one end of the second thyristor is connected to the first end of the secondary side of the second transformer, and the other end of the second thyristor is connected to the second end of the primary side of the second transformer. The emitter of the first power transistor is connected to the collector of the second power transistor and the first end of the primary side of the second transformer. The collector of the first power transistor is connected to the cathode of the third diode. The emitter of the second power transistor is connected to the anode of the fourth diode. The control terminal of the second thyristor, the gate of the first power transistor, and the gate of the second power transistor are respectively connected to the IO3, IO6, and IO5 terminals of the first controller.

[0020] As a further embodiment of the present invention: the auxiliary control module includes a fifth thyristor, a sixth thyristor, an energy storage device, a seventh diode, a third power transistor, and a boost converter;

[0021] Preferably, the anode of the fifth thyristor and the cathode of the sixth thyristor are respectively connected to the first and second terminals of the primary side of the second transformer; the cathode of the fifth thyristor is connected to the collector of the third power transistor and the first terminal of the energy storage device; the emitter of the third power transistor is connected to the first input terminal of the boost converter; the anode of the sixth thyristor is connected to the second input terminal of the boost converter and the second terminal of the energy storage device; the first and second output terminals of the boost converter are respectively connected to the first and second terminals of the output port; the control terminal of the fifth thyristor is connected to the control terminal of the sixth thyristor, the anode of the seventh diode, and the IO7 terminal of the first controller; the cathode of the seventh diode is connected to the base of the first switching transistor; and the gate of the third power transistor is connected to the IO8 terminal of the first controller.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows: The intelligent voltage regulation control circuit of the high-frequency transformer of the present invention can control the transformer output module to perform inversion, filtering, transformation and rectification of DC power and supply power to the connected electrical equipment by the micro-control module. When voltage expansion is required, the first voltage regulation module is controlled to perform inversion and superimpose the power with the transformer output module to achieve power distribution and increase the output voltage width. When voltage fine adjustment is required, the second voltage regulation module is controlled to perform self-voltage boost and superimpose the power with the transformer output module to improve voltage gain. When voltage reduction is required, the auxiliary control module is controlled to perform rectification and energy storage. When the DC power connected to the transformer output module is cut off, the auxiliary control module is controlled to release the stored power, improve power supply efficiency and achieve diversified voltage regulation. Attached Figure Description

[0023] 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.

[0024] Figure 1 This is a schematic block diagram of a high-frequency transformer intelligent voltage regulation control circuit provided in an embodiment of the present invention.

[0025] Figure 2 The circuit diagram is provided for an embodiment of the present invention: a high-frequency transformer intelligent voltage regulation control circuit.

[0026] Figure 3 The circuit diagram of the auxiliary control module provided in the embodiment of the present invention. Detailed Implementation

[0027] 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.

[0028] In one embodiment, see Figure 1 A high-frequency transformer intelligent voltage regulation control circuit includes:

[0029] The first voltage regulating module 2 is connected to the transformer output module 1 and is used to invert and filter the DC power input to the transformer output module 1 and output the second power, and transmit the second power to the transformer output module 1.

[0030] The second voltage regulating module 3 is connected to the transformer output module 1 and is used to perform self-boosting processing on the first electrical energy output by the transformer output module 1 and output the third electrical energy. As the self-boosting working time increases, the third electrical energy is boosted and regulated.

[0031] Transformer output module 1, connected to auxiliary control module 4, is used to invert, filter and transform the input DC power and output the first power, stabilize the DC power and transmit the first power, rectify the first power, and when receiving the second power, superimpose and rectify the first power and the second power. When receiving the third power, superimpose and rectify the third power and the first power. When the auxiliary control module 4 is working, it performs voltage division processing on the first power and outputs the fourth power. It also transmits the rectified power or the backup power output by the auxiliary control module 4 to the connected electrical equipment.

[0032] Auxiliary control module 4 is used to rectify and store the fourth electrical energy, release the stored electrical energy and perform voltage boosting to provide backup electrical energy;

[0033] The microcontroller module 5 is connected to the transformer output module 1, the first voltage regulating module 2, the second voltage regulating module 3, and the auxiliary control module 4. It is used to control the transformer output module 1 to perform inverter operation, control the first voltage regulating module 2 to perform inverter and power transmission when voltage boosting is required, and control the transformer output module 1 to perform power superposition. When voltage fine adjustment is required, it controls the second voltage regulating module 3 to perform self-voltage boosting and control the transformer output module 1 to perform power superposition. When voltage bucking is required, it controls the auxiliary control module 4 to perform rectification operation. When the DC power connected to the transformer output module 1 is cut off, it controls the auxiliary control module 4 to release the stored power.

[0034] In a specific embodiment, the aforementioned transformer output module 1 can be a transformer output circuit composed of a power port, inverter, transformer, diode, etc., which can perform inversion, filtering, transformation, power transmission, and rectification of the input DC power, and can complete the voltage regulation work with the first voltage regulating module 2, the second voltage regulating module 3, or the auxiliary control module 4 through the transformer; the aforementioned first voltage regulating module 2 can be a first voltage regulating circuit composed of an inverter, inductor, thyristor, etc., which performs inversion and filtering of DC power and transmits the processed power to the transformer output module 1 so that the transformer output module 1 can perform power superposition and voltage amplification output; the aforementioned second voltage regulating module 3 can be an IGBT. The second voltage regulating circuit, composed of a thyristor and a controllable silicon controlled rectifier (SCR), controls the transformer output module 1 to perform self-boosting processing. The longer the self-boosting operation time, the higher the output voltage of the power energy after self-boosting. The auxiliary control module 4 can be an auxiliary control circuit composed of a thyristor, IGBT, energy storage device, etc., which can rectify the power energy output by the transformer output module 1, store and release the stored power energy, and boost the released power energy. The microcontroller module 5 can be a microcontroller circuit composed of a single-chip microcomputer, which integrates many components such as an arithmetic unit, a controller, a memory, and input / output devices to realize functions such as signal processing, data storage, module control, and timing control.

[0035] In this embodiment, please refer to Figure 2 and Figure 3 The transformer output module 1 includes a power port, a first inverter T1, a first capacitor C1, a first inductor L1, and a first transformer B1; the microcontroller module 5 includes a first controller U1.

[0036] Specifically, the first and second ends of the power supply port are respectively connected to the first and second input ends of the first inverter T1. The first output end of the first inverter T1 is connected to the first end of the primary side of the first transformer B1 through the first capacitor C1 and the first inductor L1 in sequence. The second output end of the first inverter T1 is connected to the second end of the primary side of the first transformer B1. The drive end of the first inverter T1 is connected to the IO1 end of the first controller U1.

[0037] In a specific embodiment, the first inverter T1 may be composed of four IGBTs for DC-AC inversion processing. The first inverter T1 is driven and controlled by four sets of drive signals provided by the IO1 terminal of the first controller U1. The first capacitor C1 and the first inductor L1 are used for resonant filtering. The first controller U1 may be an STM32 microcontroller. The first transformer B1 is the main transformer.

[0038] Furthermore, the transformer output module 1 also includes a voltage regulation device, a first resistor R1, a first switching transistor V1, a first diode D1, a second diode D2, a first thyristor S1, and a second transformer B2;

[0039] Specifically, the first input terminal and the second input terminal of the voltage regulator are respectively connected to the first terminal and the second terminal of the power supply port. The output terminal of the voltage regulator is connected to the collector of the first switching transistor V1 and the control terminal of the first thyristor S1 through the first resistor R1. The first terminal of the first thyristor S1 is connected to the first terminal of the secondary side of the second transformer B2 and the second terminal of the secondary side of the first transformer B1. The second terminal of the first thyristor S1 is connected to the second terminal of the secondary side of the second transformer B2. The emitter of the first switching transistor V1 is grounded. The anode of the first diode D1 and the anode of the second diode D2 are respectively connected to the IO3 terminal and the IO4 terminal of the first controller U1. The base of the first switching transistor V1 is connected to the cathode of the first diode D1 and the cathode of the second diode D2.

[0040] In a specific embodiment, the voltage stabilization device can be composed of a voltage regulator and a filter to perform voltage stabilization and filtering; the first switching transistor V1 can be an NPN transistor; the first thyristor S1 can be a bidirectional thyristor; the second transformer B2 is an auxiliary transformer with a voltage ratio of 1:N, where N is the step-up factor.

[0041] Furthermore, the transformer output module 1 also includes a third diode D3, a fourth diode D4, a fifth diode D5, a sixth diode D6, a third capacitor C3, and an output port;

[0042] Specifically, the cathode of the third diode D3 is connected to the cathode of the fifth diode D5 and the first end of the output port, and is connected to the second end of the output port, the anode of the fourth diode D4, the anode of the sixth diode D6 and the ground terminal through the third capacitor C3. The anode of the third diode D3 is connected to the cathode of the fourth diode D4 and the first end of the secondary side of the first transformer B1. The anode of the fifth diode D5 is connected to the cathode of the sixth diode D6 and the second end of the first thyristor S1.

[0043] In a specific embodiment, the third diode D3, the fourth diode D4, the fifth diode D5, and the sixth diode D6 are used for rectification.

[0044] Furthermore, the first voltage regulating module 2 includes a second inverter T2, a second capacitor C2, a second inductor L2, a third thyristor S3, and a fourth thyristor S4;

[0045] Specifically, the first input terminal and the second input terminal of the second inverter T2 are connected to the first terminal and the second terminal of the power supply port, respectively. The first output terminal of the second inverter T2 is connected to one terminal of the fourth thyristor S4 through the second capacitor C2 and the second inductor L2 in sequence. The second output terminal of the second inverter T2 is connected to one terminal of the third thyristor S3. The other terminals of the third thyristor S3 and the fourth thyristor S4 are connected to the second terminal and the first terminal of the primary side of the second transformer B2, respectively. The control terminals of the third thyristor S3 and the fourth thyristor S4 are both connected to the IO4 terminal of the first controller U1. The drive terminal of the second inverter T2 is connected to the IO2 terminal of the first controller U1.

[0046] In a specific embodiment, the second inverter T2 can be composed of four IGBTs for DC-AC inversion. The second inverter T2 is driven and controlled by four sets of drive signals provided by the IO2 terminal of the first controller U1. The second inductor L2 and the second capacitor C2 are used for resonant filtering. The third thyristor S3 and the fourth thyristor S4 can both be bidirectional thyristors.

[0047] Furthermore, the second voltage regulating module 3 includes a second thyristor S2, a first power transistor Q1, and a second power transistor Q2;

[0048] Specifically, one end of the second thyristor S2 is connected to the first end of the secondary side of the second transformer B2, and the other end of the second thyristor S2 is connected to the second end of the primary side of the second transformer B2. The emitter of the first power transistor Q1 is connected to the collector of the second power transistor Q2 and the first end of the primary side of the second transformer B2. The collector of the first power transistor Q1 is connected to the cathode of the third diode D3. The emitter of the second power transistor Q2 is connected to the anode of the fourth diode D4. The control terminal of the second thyristor S2, the gate of the first power transistor Q1, and the gate of the second power transistor Q2 are respectively connected to the IO3, IO6, and IO5 terminals of the first controller U1.

[0049] In a specific embodiment, both the first power transistor Q1 and the second power transistor Q2 can be IGBTs to form an auxiliary half-bridge. When the first power transistor Q1 is turned on, the secondary side of the first transformer B1, the third diode D3, the first power transistor Q1, the primary side of the second transformer B2, and the second thyristor S2 form a circuit. The second transformer B2 then performs isolation transformation. The electrical energy output from the secondary side of the second transformer B2 is superimposed with the electrical energy output from the secondary side of the first transformer B1. The primary side of the second transformer B2 then performs isolation transformation on the superimposed electrical energy. This cycle repeats, thereby achieving a higher electrical energy output from the secondary side of the second transformer B2 as the conduction time of the first power transistor Q1 increases, thus completing self-boosting. The second thyristor S2 can be a bidirectional thyristor.

[0050] Furthermore, the auxiliary control module 4 includes a fifth thyristor S5, a sixth thyristor S6, an energy storage device, a seventh diode D7, a third power transistor Q3, and a boost converter;

[0051] Specifically, the anode of the fifth thyristor S5 and the cathode of the sixth thyristor S6 are connected to the first and second terminals of the primary side of the second transformer B2, respectively. The cathode of the fifth thyristor S5 is connected to the collector of the third power transistor Q3 and the first terminal of the energy storage device. The emitter of the third power transistor Q3 is connected to the first input terminal of the boost converter. The anode of the sixth thyristor S6 is connected to the second input terminal of the boost converter and the second terminal of the energy storage device. The first and second output terminals of the boost converter are connected to the first and second terminals of the output port, respectively. The control terminal of the fifth thyristor S5 is connected to the control terminal of the sixth thyristor S6, the anode of the seventh diode D7, and the IO7 terminal of the first controller U1. The cathode of the seventh diode D7 is connected to the base of the first switching transistor V1. The gate of the third power transistor Q3 is connected to the IO8 terminal of the first controller U1.

[0052] In a specific embodiment, the fifth thyristor S5 and the sixth thyristor S6 can both be unidirectional thyristors; the third power transistor Q3 can be an IGBT; the boost device can be composed of a boost converter and a filter; and the energy storage device can be a lithium battery.

[0053] The working principle of the intelligent voltage regulation control circuit for a high-frequency transformer of the present invention is as follows: DC power is input through the power port. The IO1 terminal of the first controller U1 controls the first inverter T1 to perform inversion. The first capacitor C1, the first inductor L1, and the first transformer B1 perform filtering and voltage transformation processing and output the first electrical energy. After voltage regulation by the voltage stabilization device, the first thyristor S1 is triggered to conduct. The first electrical energy is rectified and filtered by the third diode D3, the fourth diode D4, the fifth diode D5, the sixth diode D6, and the third capacitor C3, and then supplies power to the electrical equipment connected to the output port. When voltage amplification is required, the IO2 terminal of the first controller U1 controls the second inverter T2 to perform inversion. The second capacitor C2 and the second inductor L2 filter the output, producing a second electrical energy. Simultaneously, the IO4 terminal of the first controller U1 controls the first switch V1, the third thyristor S3, and the fourth thyristor S4 to conduct. This allows the second electrical energy to be transformed by the second transformer B2, and then output from the second transformer B2. This second energy is then superimposed with the first electrical energy output from the first transformer B1, rectified, and transmitted to the power-consuming equipment. When voltage fine-tuning is required, the IO2 terminal of the first controller U1... The first controller U1 controls the second thyristor S2 and the first switching transistor V1 to conduct, while the first thyristor S1 is turned off. Simultaneously, the first controller U1's IO6 terminal controls the first power transistor Q1 to conduct, causing the second transformer B2 to perform a self-boosting process on the first electrical energy. The longer the first power transistor Q1 is on, the higher the output energy from the secondary side of the second transformer B2 becomes, thus continuously boosting the voltage. This boosted energy is then superimposed on the first electrical energy output from the first transformer B1, achieving voltage gain regulation. When the first controller U1's IO5 terminal controls the second power transistor Q2 to conduct, the boosting process stops. After rectification, the power is transmitted to the electrical equipment. When step-down power supply is required, the IO7 terminal of the first controller U1 can control the first switching transistor V1, the fifth thyristor S5 and the sixth thyristor S6 to conduct, and the first thyristor S1 to turn off. The second transformer B2 divides the first electrical energy and outputs the fourth electrical energy by stepping down the voltage. The energy storage device stores the fourth electrical energy. When the DC power connected to the transformer output module 1 is interrupted, the IO8 terminal of the first controller U1 can control the third power transistor Q3 to conduct. The energy storage device releases the stored electrical energy and boosts it through the boost device to provide backup power for the output port.

[0054] 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.

[0055] 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 high-frequency transformer intelligent voltage regulation control circuit, characterized in that, The circuit includes: The first voltage regulating module is connected to the transformer output module and is used to invert and filter the DC power input to the transformer output module and output the second power, and transmit the second power to the transformer output module. The second voltage regulating module is connected to the transformer output module. It is used to perform self-boosting processing on the first electrical energy output by the transformer output module and output the third electrical energy. As the self-boosting working time increases, the third electrical energy is boosted and regulated. The transformer output module, connected to the auxiliary control module, is used to invert, filter, and transform the input DC power and output the first power; stabilize the DC power and transmit the first power; rectify the first power; when receiving the second power, superimpose and rectify the first power and the second power; when receiving the third power, superimpose and rectify the third power and the first power; when the auxiliary control module is working, perform voltage division processing on the first power and output the fourth power; and transmit the rectified power or the backup power output by the auxiliary control module to the connected electrical equipment. The auxiliary control module is used to rectify and store the fourth electrical energy, release the stored electrical energy and perform voltage boosting to provide backup power. The microcontroller module, connected to the transformer output module, the first voltage regulator module, the second voltage regulator module, and the auxiliary control module, is used to control the transformer output module to perform inverter operation. When voltage boosting is required, it controls the first voltage regulator module to perform inverter operation and power transmission, and controls the transformer output module to perform power superposition. When voltage fine-tuning is required, it controls the second voltage regulator module to perform self-boosting, and controls the transformer output module to perform power superposition. When voltage bucking is required, it controls the auxiliary control module to perform rectification operation. When the DC power connected to the transformer output module is interrupted, it controls the auxiliary control module to release the stored power. The transformer output module includes a power port, a first inverter, a first capacitor, a first inductor, and a first transformer; the microcontroller module includes a first controller. The first and second ends of the power port are respectively connected to the first and second input ends of the first inverter. The first output end of the first inverter is connected to the first end of the primary side of the first transformer in sequence through the first capacitor and the first inductor. The second output end of the first inverter is connected to the second end of the primary side of the first transformer. The drive end of the first inverter is connected to the IO1 end of the first controller. The transformer output module also includes a voltage regulator, a first resistor, a first switching transistor, a first diode, a second diode, a first thyristor, and a second transformer; The first input terminal and the second input terminal of the voltage regulator are respectively connected to the first terminal and the second terminal of the power supply port. The output terminal of the voltage regulator is connected to the collector of the first switching transistor and the control terminal of the first thyristor through the first resistor. The first terminal of the first thyristor is connected to the first terminal and the second terminal of the secondary side of the second transformer. The second terminal of the first thyristor is connected to the second terminal of the secondary side of the second transformer. The emitter of the first switching transistor is grounded. The anode of the first diode and the anode of the second diode are respectively connected to the IO3 terminal and the IO4 terminal of the first controller. The base of the first switching transistor is connected to the cathode of the first diode and the cathode of the second diode.

2. The intelligent voltage regulation control circuit for a high-frequency transformer according to claim 1, characterized in that, The transformer output module also includes a third diode, a fourth diode, a fifth diode, a sixth diode, a third capacitor, and an output port; The cathode of the third diode is connected to the cathode of the fifth diode and the first end of the output port, and is connected to the second end of the output port, the anode of the fourth diode, the anode of the sixth diode and the ground terminal through the third capacitor. The anode of the third diode is connected to the cathode of the fourth diode and the first end of the secondary side of the first transformer. The anode of the fifth diode is connected to the cathode of the sixth diode and the second end of the first thyristor.

3. The intelligent voltage regulation control circuit for a high-frequency transformer according to claim 2, characterized in that, The first voltage regulation module includes a second inverter, a second capacitor, a second inductor, a third thyristor, and a fourth thyristor; The first input terminal and the second input terminal of the second inverter are respectively connected to the first terminal and the second terminal of the power supply port. The first output terminal of the second inverter is connected to one terminal of the fourth thyristor in sequence through the second capacitor and the second inductor. The second output terminal of the second inverter is connected to one terminal of the third thyristor. The other terminals of the third thyristor and the fourth thyristor are respectively connected to the second terminal and the first terminal of the primary side of the second transformer. The control terminals of the third thyristor and the fourth thyristor are both connected to the IO4 terminal of the first controller. The drive terminal of the second inverter is connected to the IO2 terminal of the first controller.

4. The intelligent voltage regulation control circuit for a high-frequency transformer according to claim 3, characterized in that, The second voltage regulation module includes a second thyristor, a first power transistor, and a second power transistor; One end of the second thyristor is connected to the first end of the secondary side of the second transformer, and the other end of the second thyristor is connected to the second end of the primary side of the second transformer. The emitter of the first power transistor is connected to the collector of the second power transistor and the first end of the primary side of the second transformer. The collector of the first power transistor is connected to the cathode of the third diode. The emitter of the second power transistor is connected to the anode of the fourth diode. The control terminal of the second thyristor, the gate of the first power transistor, and the gate of the second power transistor are respectively connected to the IO3, IO6, and IO5 terminals of the first controller.

5. The intelligent voltage regulation control circuit for a high-frequency transformer according to claim 4, characterized in that, The auxiliary control module includes a fifth thyristor, a sixth thyristor, an energy storage device, a seventh diode, a third power transistor, and a boost converter; The anode of the fifth thyristor and the cathode of the sixth thyristor are respectively connected to the first and second terminals of the primary side of the second transformer. The cathode of the fifth thyristor is connected to the collector of the third power transistor and the first terminal of the energy storage device. The emitter of the third power transistor is connected to the first input terminal of the boost converter. The anode of the sixth thyristor is connected to the second input terminal of the boost converter and the second terminal of the energy storage device. The first and second output terminals of the boost converter are respectively connected to the first and second terminals of the output port. The control terminal of the fifth thyristor is connected to the control terminal of the sixth thyristor, the anode of the seventh diode, and the IO7 terminal of the first controller. The cathode of the seventh diode is connected to the base of the first switching transistor. The gate of the third power transistor is connected to the IO8 terminal of the first controller.

Citation Information

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