A high-power power supply

Abstract

An embodiment of the present invention discloses a high-power power supply, comprising: a control module, a signal adjustment module, a voltage detection module and a current detection module; the signal adjustment module, the voltage detection module and the current detection module are all electrically connected to the control module; wherein, the control module is configured to generate a control signal according to the voltage detection signal input by the voltage detection module and the current detection signal input by the current detection module; the signal adjustment module includes a first rectifier bridge circuit and a second rectifier bridge circuit, the first rectifier bridge circuit receives the control signal and adjusts the output signal according to the control signal; the second rectifier bridge circuit receives the control signal and rectifies and stabilizes the input signal according to the control signal; so as to output a voltage and a current with controllable precision at the output end of the signal adjustment module. The high-power power supply provided by the embodiment of the present invention can achieve relatively high precision of the output voltage and the output current.

Description

Technical Field

[0001] The embodiments of the present invention relate to power supply technology, and in particular, to a high-power power supply. Background Art

[0002] In various fields of production and life, many devices need to be powered by a power supply to ensure the voltage required for normal operation. For example, when conducting research on optoelectronic display devices, a power supply is needed, and to meet diverse power supply requirements, the output power of the power supply and the accuracy of the output voltage and current are also important research contents.

[0003] Currently, for existing power supplies, generally, the number of power output channels is small, the output power and the accuracy of the output voltage and current are low, the operation is not convenient enough, and it is difficult to meet the high-power and high-precision power supply requirements. Summary of the Invention

[0004] The embodiments of the present invention provide a high-power power supply to achieve relatively high accuracy of the output voltage and output current.

[0005] In a first aspect, the embodiments of the present invention provide a high-power power supply, including: a control module, a signal adjustment module, a voltage detection module, and a current detection module;

[0006] The signal adjustment module, the voltage detection module, and the current detection module are all electrically connected to the control module;

[0007] Among them, the control module is configured to generate a control signal according to the voltage detection signal input by the voltage detection module and the current detection signal input by the current detection module;

[0008] The signal adjustment module includes a first rectifier bridge circuit and a second rectifier bridge circuit. The first rectifier bridge circuit receives the control signal and adjusts the output signal according to the control signal; the second rectifier bridge circuit receives the control signal and rectifies and stabilizes the input signal according to the control signal; so as to output a voltage and a current with controllable accuracy at the output end of the signal adjustment module.

[0009] Optionally, the first rectifier bridge circuit includes a selection switch, a first rectifier bridge, a first MOS transistor, and a second MOS transistor. The first end and the second end of the first rectifier bridge serve as the input end of the first rectifier bridge circuit. The first end and the second end of the first rectifier bridge are connected to the input signal through the selection switch. The first pole of the first MOS transistor is electrically connected to the second end of the first rectifier bridge. The gate of the first MOS transistor is connected to the first power supply signal. When the first MOS transistor is turned on, the current input to the first pole is transmitted to the second pole. The first pole of the second MOS transistor is electrically connected to the third end of the first rectifier bridge. The second pole of the second MOS transistor is electrically connected to the second pole of the first MOS transistor. The second MOS transistor controls its conduction state according to the signal connected to the gate.

[0010] Optionally, the second rectifier bridge circuit includes a second rectifier bridge, a first voltage regulator, and a second voltage regulator. The first end and the second end of the second rectifier bridge serve as the input terminals of the second rectifier bridge circuit. The third end of the second rectifier bridge is connected to the first power supply signal through the first voltage regulator, and the fourth end of the second rectifier bridge is connected to the second power supply signal through the second voltage regulator.

[0011] Optionally, the signal adjustment module further includes a plurality of output control switches, which are electrically connected to the output terminal of the first rectifier bridge circuit and are used to control the output path of the output signal.

[0012] Optionally, the current detection module includes a first operational amplifier circuit, a second operational amplifier circuit, and a third operational amplifier circuit. The first input terminal of the first operational amplifier circuit and the first input terminal of the second operational amplifier circuit serve as the first input terminal and the second input terminal of the current detection module respectively and are electrically connected to the control module. The second input terminal of the first operational amplifier circuit is connected to the second power supply signal. The second input terminal of the second operational amplifier circuit and the first input terminal of the third operational amplifier circuit are both electrically connected to the output terminal of the first operational amplifier circuit. The output terminal of the first operational amplifier circuit serves as the first output terminal of the current detection module. The second input terminal of the third operational amplifier circuit is grounded, and the output terminal of the third operational amplifier circuit serves as the second output terminal of the current detection module and is electrically connected to the control module.

[0013] Optionally, the voltage detection module includes a fourth operational amplifier circuit and a fifth operational amplifier circuit. The first input terminal of the fourth operational amplifier circuit serves as the first input terminal of the voltage detection module and is electrically connected to the control module. The second input terminal of the fourth operational amplifier circuit is electrically connected to the output terminal of the fourth operational amplifier circuit. The output terminal of the fourth operational amplifier circuit serves as the first output terminal of the voltage detection module. The first input terminal of the fifth operational amplifier circuit is grounded. The second input terminal and the output terminal of the fifth operational amplifier circuit are both electrically connected to the second input terminal of the fourth operational amplifier circuit. The output terminal of the fifth operational amplifier circuit serves as the second output terminal of the voltage detection module and is electrically connected to the control module.

[0014] Optionally, the high-power power supply further includes a current protection module, which is electrically connected to the current detection module.

[0015] Optionally, the high-power power supply further includes a digital-to-analog conversion module and an analog-to-digital conversion module. Both the voltage detection module and the current detection module are electrically connected to the control module through the digital-to-analog conversion module and the analog-to-digital conversion module.

[0016] Optionally, it further includes a plurality of first circuit boards, and each first circuit board integrates a control module, a signal adjustment module, a voltage detection module, and a current detection module. Each first circuit board outputs a path of voltage and current.

[0017] Optionally, the high-power power supply further includes a second circuit board, and multiple first circuit boards are all plugged into the second circuit board; the second circuit board further includes a communication interface, and the communication interface is electrically connected to the control module, and the communication interface is used to transmit the main control signal of the serial port screen or the host computer to the control module on each first circuit board.

[0018] An embodiment of the present invention provides a high-power power supply, including a control module, a signal adjustment module, a voltage detection module, and a current detection module. The signal adjustment module, the voltage detection module, and the current detection module are all electrically connected to the control module. The control module can generate a control signal according to the voltage detection signal input by the voltage detection module and the current detection signal input by the current detection module. The signal adjustment module includes a first rectifier bridge circuit and a second rectifier bridge circuit. The first rectifier bridge circuit receives the control signal and adjusts the output signal according to the control signal. The second rectifier bridge circuit receives the control signal and rectifies and stabilizes the input signal according to the control signal, so as to output a voltage and current with controllable precision at the output end of the signal adjustment module. In the high-power power supply provided by the embodiment of the present invention, the first rectifier bridge circuit can adjust the output signal according to the control signal, and output a voltage and current with controllable precision at the output end of the signal adjustment module, so that the output voltage and output current can be controlled with high precision. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a structural block diagram of a high-power power supply provided by an embodiment of the present invention;

[0020] Figure 2 is a schematic structural diagram of a signal adjustment module provided by an embodiment of the present invention;

[0021] Figure 3 is a schematic structural diagram of a current detection module provided by an embodiment of the present invention;

[0022] Figure 4 is a schematic structural diagram of a voltage detection module provided by an embodiment of the present invention;

[0023] Figure 5 is a schematic structural diagram of a current protection module provided by an embodiment of the present invention;

[0024] Figure 6 is a schematic structural diagram of a first circuit board and a second circuit board provided by an embodiment of the present invention;

[0025] Figure 7 is a schematic structural diagram of a first circuit board, a second circuit board, and a transformer provided by an embodiment of the present invention;

[0026] Figure 8 is a schematic diagram of the main control chip of a second circuit board provided by an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only for explaining the present invention and not for limiting the present invention. In addition, it should be noted that for the convenience of description, only parts related to the present invention rather than all structures are shown in the drawings.

[0028] Figure 1 is a structural block diagram of a high-power power supply provided by an embodiment of the present invention. Referring to Figure 1 , the high-power power supply includes a control module 10, a signal adjustment module 20, a voltage detection module 30, and a current detection module 40; the signal adjustment module 20, the voltage detection module 30, and the current detection module 40 are all electrically connected to the control module 10.

[0029] Among them, the control module 10 is used to generate a control signal according to the voltage detection signal input by the voltage detection module 30 and the current detection signal input by the current detection module 40; the signal adjustment module 20 includes a first rectifier bridge circuit 21 and a second rectifier bridge circuit 22. The first rectifier bridge circuit 21 receives the control signal and adjusts the output signal according to the control signal; the second rectifier bridge circuit 22 receives the control signal and rectifies and stabilizes the input signal according to the control signal; so as to output a voltage and a current with controllable precision at the output end of the signal adjustment module 20.

[0030] Specifically, when the high-power power supply is working, the voltage detection module 30 and the current detection module 40 can respectively generate a voltage detection signal and a current detection signal according to the input signal, and respectively transmit the voltage detection signal and the current detection signal to the control module 10. The control module 10 can judge whether the received voltage detection signal and current detection signal are normal. When both the voltage detection signal and the current detection signal are normal, the control module 10 generates a control signal. The second rectifier bridge circuit 22 in the signal adjustment module 20 receives the control signal and rectifies and stabilizes the input signal according to the control signal. The first rectifier bridge circuit 21 receives the control signal and adjusts the output signal according to the control signal, so that the signal adjustment module 20 can output a voltage and a current with controllable precision at the output end. For example, the output voltage of this high-power power supply can be 20V, the output current can reach 1A, the output precision is high (up to five ten-thousandths), and the minimum stable value of the output current is dozens of microamperes, which is suitable for the power supply of optoelectronic display devices.

[0031] For the high-power power supply provided by this embodiment, the first rectifier bridge circuit can adjust the output signal according to the control signal, and output a voltage and a current with controllable precision at the output end of the signal adjustment module, so as to control the output voltage and output current with relatively high precision.

[0032] Figure 2It is a schematic structural diagram of a signal adjustment module provided by an embodiment of the present invention. Refer to Figure 2 Optionally, the first rectifier bridge circuit includes a selection switch K1, a first rectifier bridge D1, a first MOS transistor Q1, and a second MOS transistor Q2. The first end and the second end of the first rectifier bridge D1 serve as the input terminals of the first rectifier bridge circuit. The first end and the second end of the first rectifier bridge D1 are connected to the input signal through the selection switch K1. The first pole of the first MOS transistor Q1 is electrically connected to the second end of the first rectifier bridge D1. The gate of the first MOS transistor Q1 is connected to the first power supply signal +VCC. When the first MOS transistor Q1 is turned on, it transmits the current input at the first pole to the second pole. The first pole of the second MOS transistor Q2 is electrically connected to the third end of the first rectifier bridge. The second pole of the second MOS transistor Q2 is electrically connected to the second pole of the first MOS transistor Q1. The second MOS transistor Q2 controls its conduction state according to the signal applied to its gate.

[0033] Among them, the first rectifier bridge circuit further includes circuit components such as capacitors and resistors. The voltage of the first power supply signal +VCC can be +12V. The selection switch K1 can be a relay switch. The input terminal A1 of the relay of the relay switch is connected to the control signal. The first rectifier bridge circuit is connected to the input signal through the terminal block P1. The selection switch K1 selects the input signal to be connected according to the control signal. For example, when the control signal is at a high level, it controls the first rectifier bridge D1 to connect to the signal input at port 1 of the terminal block P1. When the control signal is at a low level, it controls the first rectifier bridge D1 to connect to the signal input at port 2 of the terminal block P1. The gate of the first MOS transistor Q1 is connected to the first MOS signal through port A2. The first MOS transistor controls the transmission state of the current input at the first pole to the second pole according to the first MOS signal applied to its gate. The gate of the second MOS transistor Q2 is connected to the second MOS signal through port A3. The second MOS transistor controls the transmission state of the current input at the first pole to the second pole according to the second MOS signal applied to its gate. For example, when the first MOS transistor is turned on, the voltage and current output after rectification by the first rectifier bridge D1 are transmitted from the first pole to the second pole, so as to output the voltage and current through the first rectifier bridge circuit.

[0034] Optionally, the second rectifier bridge circuit includes a second rectifier bridge D2, a first voltage regulator U1, and a second voltage regulator U2. The first end and the second end of the second rectifier bridge D2 serve as the input terminals of the second rectifier bridge circuit. The third end of the second rectifier bridge D2 is connected to the first power supply signal +VCC through the first voltage regulator U1. The fourth end of the second rectifier bridge D2 is connected to the second power supply signal -VCC through the second voltage regulator U2.

[0035] Specifically, the second rectifier bridge circuit further includes a plurality of capacitors electrically connected to two voltage regulators. The first end and the second end of the second rectifier bridge D2 are connected to an input signal through a terminal block P1. The input signal is rectified by the second rectifier bridge D2, and the rectified signal is output to the first voltage regulator U1 and the second voltage regulator U2 through the third end and the fourth end respectively. The first voltage regulator U1 and the second voltage regulator U2 stabilize the rectified signal to ensure the stability of the output voltage.

[0036] Optionally, the signal adjustment module further includes a plurality of output control switches, which are electrically connected to the output end of the first rectifier bridge circuit and used to control the output path of the output signal.

[0037] Specifically, each output control switch is electrically connected to a resistor device. The plurality of output control switches include a first output control switch K2, a second output control switch K3, and a third output control switch K4. Each output control switch can be a relay switch. Each output control switch is connected to a switch signal through a port A4. The input end A5 of the relay of the first output control switch K2 is connected to a first switch control signal, the input end A6 of the relay of the second output control switch K3 is connected to a second switch control signal, and the input end A7 of the relay of the third output control switch K4 is connected to a third switch control signal. Each output control switch controls the on / off of its own switch according to the respective switch control signal it receives, thereby controlling the output path of the output signal OUT. For example, when the switch of the first output control switch K2 is closed, the signal output by the first rectifier bridge circuit is output through the first output control switch.

[0038] Figure 3 is a schematic structural diagram of a current detection module provided by an embodiment of the present invention. Refer to Figure 3 , optionally, the current detection module includes a first operational amplifier circuit 41, a second operational amplifier circuit 42, and a third operational amplifier circuit 43. The first input end B1 of the first operational amplifier circuit 41 and the first input end B2 of the second operational amplifier circuit 42 are respectively used as the first input end and the second input end of the current detection module and are electrically connected to the control module. The second input end of the first operational amplifier circuit 41 is connected to a second power supply signal +VCC. The second input end of the second operational amplifier circuit 42 and the first input end of the third operational amplifier circuit 43 are both electrically connected to the output end B3 of the first operational amplifier circuit 41. The output end B3 of the first operational amplifier circuit 41 is used as the first output end of the current detection module. The second input end of the third operational amplifier circuit 43 is grounded, and the output end B5 of the third operational amplifier circuit 43 is used as the second output end of the current detection module and is electrically connected to the control module.

[0039] Among them, the first operational amplifier circuit 41, the second operational amplifier circuit 42, and the third operational amplifier circuit 43 respectively include a first operational amplifier Z1, a second operational amplifier Z2, and a third operational amplifier Z and their respective peripheral circuits including resistors, capacitors, and transistors. The voltage of the power supply signal +VDD accessed by the current detection module can be +3.3V. The port B4 of the current detection module is electrically connected to the control module. The first input terminal B1 of the first operational amplifier circuit 41, that is, the positive input terminal of the first operational amplifier Z1, can access an input signal, and a current detection signal is generated through the operational amplifier. This current detection signal can be transmitted from the output terminal B5 of the third operational amplifier circuit 43, that is, the output terminal of the third operational amplifier Z, to the control module.

[0040] Figure 4 is a schematic structural diagram of a voltage detection module provided by an embodiment of the present invention. Refer to Figure 4 , optionally, the voltage detection module includes a fourth operational amplifier circuit 31 and a fifth operational amplifier circuit 32. The first input terminal C1 of the fourth operational amplifier circuit 31 serves as the first input terminal of the voltage detection module and is electrically connected to the control module. The second input terminal of the fourth operational amplifier circuit 31 is electrically connected to the output terminal C2 of the fourth operational amplifier circuit 31. The output terminal C2 of the fourth operational amplifier circuit 31 serves as the first output terminal of the voltage detection module. The first input terminal of the fifth operational amplifier circuit 32 is grounded. Both the second input terminal and the output terminal of the fifth operational amplifier circuit 32 are electrically connected to the second input terminal of the fourth operational amplifier circuit. The output terminal C3 of the fifth operational amplifier circuit 32 serves as the second output terminal of the voltage detection module and is electrically connected to the control module.

[0041] Among them, the fourth operational amplifier circuit 31 and the fifth operational amplifier circuit 32 respectively include a fourth operational amplifier Z4 and a fifth operational amplifier Z5 and their respective peripheral circuits including resistors, capacitors, and transistors. The positive input terminal and the negative input terminal of the fourth operational amplifier Z4 are respectively connected to the power supply signals V+ and V-. The port C4 of the voltage detection module is electrically connected to the control module. The output terminal C2 of the fourth operational amplifier circuit 31, that is, the output terminal of the fourth operational amplifier Z4, can be electrically connected to the output terminal of the first operational amplifier circuit. The first input terminal C1 of the fourth operational amplifier circuit 31, that is, the positive input terminal of the fourth operational amplifier Z4, can access an input signal, and a voltage detection signal is generated through the operational amplifier. This voltage detection signal can be transmitted from the output terminal C3 of the fifth operational amplifier circuit 32, that is, the output terminal of the fifth operational amplifier Z5, to the control module.

[0042] Figure 5 is a schematic structural diagram of a current protection module provided by an embodiment of the present invention. Refer to Figure 5 , optionally, the high-power power supply further includes a current protection module, and the current protection module is electrically connected to the current detection module.

[0043] Among them, the current protection module includes a triode Q3, a diode D3, and resistor-capacitor components electrically connected to the triode Q3 and the diode D3. The input end E1 of the current protection module is electrically connected to the output end of the first operational amplifier circuit to access the current signal output by the output end of the first operational amplifier circuit. The output end E2 of the current protection module is electrically connected to the output end of the second operational amplifier. When the current corresponding to the current signal accessed by the input end E1 of the current protection module is small, the current is transmitted to the output end E2 of the current protection module through the diode D3. The base of the triode Q3 is electrically connected to the output end E2, and the base current of the triode Q3 is also small. Therefore, the triode Q3 is not turned on. When the current corresponding to the current signal accessed by the input end E1 of the current protection module is large, when the current is transmitted to the output end E2 of the current protection module through the diode D3, the base current of the triode Q3 is large and the triode Q3 is turned on. The current is transmitted to the first pole of the triode Q3 through the diode D3 and is transmitted from the first pole to the second pole of the triode Q3 to be introduced into the ground, thereby limiting the output current. For example, the current protection module can limit the output current to 1.2A to avoid damage to the power supply due to excessive current.

[0044] Optionally, the high-power power supply further includes a digital-to-analog conversion module and an analog-to-digital conversion module. Both the voltage detection module and the current detection module are electrically connected to the control module through the digital-to-analog conversion module and the analog-to-digital conversion module.

[0045] Specifically, the digital-to-analog conversion module may include a D / A conversion chip, and the analog-to-digital conversion module may include an A / D conversion chip. For example, the voltage signal and current signal output by the control module are respectively transmitted to the voltage detection module and the current detection module through the digital-to-analog conversion module. The voltage detection signal generated by the voltage detection module and the current detection signal generated by the current detection module are both converted into digital signals through the analog-to-digital conversion module and transmitted to the control module, so that the control module generates a control signal according to the voltage detection signal and the current detection signal.

[0046] Figure 6 It is a schematic structural diagram of a first circuit board and a second circuit board provided by an embodiment of the present invention. Figure 7 It is a schematic structural diagram of a first circuit board, a second circuit board, and a transformer provided by an embodiment of the present invention. Combining Figure 6 and Figure 7 , optionally, the high-power power supply further includes a plurality of first circuit boards 100. Each first circuit board 100 integrates a control module, a signal adjustment module, a voltage detection module, and a current detection module. Each first circuit board 100 outputs a path of voltage and current.

[0047] Among them, an input power terminal 110 is further provided on the first circuit board 100 for accessing power to supply power to the first circuit board 100. The high-power power supply further includes a transformer 300 electrically connected to the first circuit board 100. The transformer 300 is used to provide an input voltage and an input current to the first circuit board 100. Each first circuit board 100 has one output, and each output does not affect each other. Thus, multiple first circuit boards 100 form a multi-channel output. For example, if there are eight first circuit boards 100, a high-power power supply with eight channels can be formed.

[0048] Optionally, the high-power power supply further includes a second circuit board 200. Multiple first circuit boards 100 are all plugged into the second circuit board 200. The second circuit board 200 further includes a communication interface 210. The communication interface 210 is electrically connected to the control module. The communication interface 210 is used to transmit the main control signal of the host computer to the control module on each first circuit board 100.

[0049] Specifically, the main control signal of the host computer is transmitted to each first circuit board 100 through the communication interface 210 provided on the second circuit board 200. The main control signal of the serial port screen can be transmitted to each first circuit board 100 through another communication interface provided on the second circuit board 200. The serial port screen or the host computer realizes the programmable control of the high-power power supply through the main control signal transmitted to the control module of the first circuit board 100. Moreover, a cooling fan 220 is further provided on the second circuit board 200, which can dissipate heat for the second circuit board 200 and the first circuit board 100 close to the cooling fan 220. The second circuit board 200 further includes a main control chip. Figure 8 It is a schematic diagram of the main control chip of a second circuit board provided by an embodiment of the present invention. The main control chip is an STM chip. The main control chip communicates with the serial port screen and the host computer. The main control chip transmits the main control signal of the serial port screen or the host computer to each first circuit board 100 through the communication interface 210. The control module on the first circuit board 100 can also adopt an STM chip.

[0050] For the high-power power supply provided in this embodiment, multiple first circuit boards can form a multi-channel output. The serial port screen or the host computer realizes the programmable control of the high-power power supply through the main control signal transmitted to the control module of the first circuit board. The first rectifier bridge circuit can adjust the output signal according to the control signal, and output a voltage and a current with controllable precision at the output end of the signal adjustment module. Thus, the output voltage and output current can be controlled with high precision, that is, the high-precision, multi-channel and programmable control of the high-power power supply can be realized.

[0051] Note that the above is only the preferred embodiment of the present invention and the technical principles applied. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments only. Without departing from the concept of the present invention, more other equivalent embodiments can be included, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A high-power power supply, characterized in that, Including: A control module, a signal adjustment module, a voltage detection module, and a current detection module; The signal adjustment module, the voltage detection module, and the current detection module are all electrically connected to the control module; Wherein, the control module is used to generate a control signal according to the voltage detection signal input by the voltage detection module and the current detection signal input by the current detection module; The signal adjustment module includes a first rectifier bridge circuit and a second rectifier bridge circuit. The first rectifier bridge circuit receives the control signal and adjusts the output signal according to the control signal; the second rectifier bridge circuit receives the control signal and rectifies and stabilizes the input signal according to the control signal; to output a voltage and a current with controllable precision at the output end of the signal adjustment module; It further includes a plurality of first circuit boards, and each first circuit board integrates the control module, the signal adjustment module, the voltage detection module, and the current detection module, and each first circuit board outputs a path of voltage and current; The high-power power supply further includes a second circuit board, and a plurality of the first circuit boards are all plugged into the second circuit board; the second circuit board further includes a communication interface, the communication interface is electrically connected to the control module, and the communication interface is used to transmit the main control signal of the serial port screen or the upper computer to the control module on each first circuit board; The high-power power supply further includes a current protection module, and the current protection module is electrically connected to the current detection module.

2. The high-power power supply according to claim 1, wherein The first rectifier bridge circuit includes a selection switch, a first rectifier bridge, a first MOS transistor, and a second MOS transistor. The first end and the second end of the first rectifier bridge are used as the input end of the first rectifier bridge circuit. The first end and the second end of the first rectifier bridge are connected to the input signal through the selection switch. The first pole of the first MOS transistor is electrically connected to the second end of the first rectifier bridge. The gate of the first MOS transistor is connected to a first power supply signal. When the first MOS transistor is turned on, the current input to the first pole is transmitted to the second pole. The first pole of the second MOS transistor is electrically connected to the third end of the first rectifier bridge. The second pole of the second MOS transistor is electrically connected to the second pole of the first MOS transistor. The second MOS transistor controls its conduction state according to the signal connected to the gate.

3. The high-power power supply according to claim 2, characterized in that, The second rectifier bridge circuit includes a second rectifier bridge, a first voltage regulator, and a second voltage regulator. The first end and the second end of the second rectifier bridge are used as the input end of the second rectifier bridge circuit. The third end of the second rectifier bridge is connected to the first power supply signal through the first voltage regulator. The fourth end of the second rectifier bridge is connected to the second power supply signal through the second voltage regulator.

4. The high-power power supply according to claim 1, characterized in that, The signal adjustment module further includes a plurality of output control switches, and the plurality of output control switches are electrically connected to the output end of the first rectifier bridge circuit and are used to control the output path of the output signal.

5. The high-power power supply according to claim 3, wherein The current detection module includes a first operational amplifier circuit, a second operational amplifier circuit, and a third operational amplifier circuit. The first input terminal of the first operational amplifier circuit and the first input terminal of the second operational amplifier circuit are respectively used as the first input terminal and the second input terminal of the current detection module and are electrically connected to the control module. The second input terminal of the first operational amplifier circuit is connected to the second power supply signal. The second input terminal of the second operational amplifier circuit and the first input terminal of the third operational amplifier circuit are both electrically connected to the output terminal of the first operational amplifier circuit. The output terminal of the first operational amplifier circuit is used as the first output terminal of the current detection module. The second input terminal of the third operational amplifier circuit is grounded. The output terminal of the third operational amplifier circuit is used as the second output terminal of the current detection module and is electrically connected to the control module.

6. The high-power power supply according to claim 1, characterized in that, The voltage detection module includes a fourth operational amplifier circuit and a fifth operational amplifier circuit. The first input terminal of the fourth operational amplifier circuit is used as the first input terminal of the voltage detection module and is electrically connected to the control module. The second input terminal of the fourth operational amplifier circuit is electrically connected to the output terminal of the fourth operational amplifier circuit. The output terminal of the fourth operational amplifier circuit is used as the first output terminal of the voltage detection module. The first input terminal of the fifth operational amplifier circuit is grounded. The second input terminal and the output terminal of the fifth operational amplifier circuit are both electrically connected to the second input terminal of the fourth operational amplifier circuit. The output terminal of the fifth operational amplifier circuit is used as the second output terminal of the voltage detection module and is electrically connected to the control module.

7. The high-power power supply according to claim 1, characterized in that, The high-power power supply further includes a digital-to-analog conversion module and an analog-to-digital conversion module. Both the voltage detection module and the current detection module are electrically connected to the control module through the digital-to-analog conversion module and the analog-to-digital conversion module.

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