Three-level double boost energy feedback PWM rectification circuit and control method thereof
A rectifier circuit and double-boost technology, applied to electrical components, AC power input to DC power output, output power conversion devices, etc., can solve the performance degradation of high withstand voltage power semiconductor devices and the voltage stress of power switch tubes High, affecting the overall performance of the circuit and other issues, to achieve the effect of no bridge arm through hidden danger, small electromagnetic interference, and no reverse recovery problem
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[0023] The circuit structure and working principle of the embodiment of the present invention will be described below with reference to the accompanying drawings.
[0024] figure 1 It is a structural schematic diagram of a three-level dual-boost energy-feedback PWM rectifier circuit, including an input power supply 2, two boost bridge arm circuits 1, 3 and an output filter circuit 4, and the output filter circuit 4 includes a first filter capacitor C 1 , the second filter capacitor C 2 , the first filter capacitor C 1 The negative pole of the second filter capacitor C 2 The positive pole of the connection, and the connection point is grounded, the first filter capacitor C 1 The positive pole and the second filter capacitor C 2 The negative pole of the three-level double-boost energy-feedback PWM rectifier circuit is characterized in that: the first boost bridge arm circuit 1 includes a first power switch tube Q 1 , the second power switch tube Q 2 , the first diode D 1 ...
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