An isolated high and low voltage switching self-holding circuit
A high-low voltage conversion and self-holding circuit technology, which is applied in the direction of output power conversion devices, electrical components, and adjustment of electrical variables, can solve the problem of no real-time feedback of high and low voltage conversion status
Active Publication Date: 2021-11-16
BEIJING AEROSPACE INST OF THE LONG MARCH VEHICLE +1
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Problems solved by technology
[0003] The technical problem solved by the present invention is: in view of the current prior art, the traditional high and low voltage conversion circuit is relatively simple, mainly realized by discrete components such as transformers and MOS tubes, and the state of high and low voltage conversion has no real-time feedback. An isolated high and low voltage switching self-holding circuit
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[0026] An isolated high-voltage and low-voltage conversion self-holding circuit, with a controller circuit as the core, can collect environmental overload information and the state of the high-voltage conversion circuit in real time through the AD conversion circuit. At the same time, the state of the circuit can be fed back to the external receiving system in real time through the 1553B interface circuit, and the control of the primary MOS tube switch of the high-voltage conversion isolation feedback circuit is realized through the overload detection circuit and the isolation self-protection circuit, and the control signal is sent through the controller to control The dynamic switch isolation circuit realizes the control of another MOS tube switch of the high-voltage conversion isolation feedback circuit, such as figure 1 As shown, it mainly includes: overload detection circuit, isolation self-protection circuit, high voltage conversion isolation feedback circuit, AD conversio...
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An isolated high-voltage and low-voltage conversion self-holding circuit, including an overload detection circuit, an isolation self-protection circuit, a high-voltage conversion isolation feedback circuit, an AD conversion circuit, a dynamic switch isolation circuit, a controller circuit, and a 1553B communication interface circuit. The isolation self-protection circuit realizes the control of the first-level MOS tube switch of the high-voltage conversion isolation feedback circuit, and sends a control signal through the controller to control the dynamic switch isolation circuit to realize the control of the other-level MOS tube switch of the high-voltage conversion isolation feedback circuit, which solves the problem of The traditional high and low voltage conversion circuit structure and control methods are relatively simple, and the problem of no state feedback is overcome by adding a 1553B communication interface circuit.
Description
technical field [0001] The invention relates to an isolated high-voltage and low-voltage conversion self-holding circuit, which belongs to the technical field of voltage conversion. Background technique [0002] High-voltage and low-voltage conversion circuits are widely used in the fields of power conversion, energy storage and high-voltage discharge. The conversion from low DC voltage to high DC voltage can be realized by using a forward or flyback transformer with a certain peripheral circuit. The traditional high-voltage and low-voltage conversion circuit is relatively simple, and it is mainly realized by discrete components such as transformers and MOS tubes. At the same time, the control of low voltage to high voltage conversion is relatively simple. Closed-loop control is not realized after low voltage is converted to high voltage. There is no real-time feedback on the status of high and low voltage conversion. The proportional coefficient of high and low voltage con...
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IPC IPC(8): H02M3/335
CPCH02M3/33515H02M3/33523
Inventor 任昌健李宝李骥王硕谷静苏峰寇宇王丰关莹王强王伟伟修展马瑞华烈葛立高枫钟晓卫王小珲苏晓东高宗刘欣相干吴丽萍龙小武徐晓波
Owner BEIJING AEROSPACE INST OF THE LONG MARCH VEHICLE