Single-phase five-level power factor correction circuit based on hybrid H bridge
A power factor correction and five-level technology, which is applied in high-efficiency power electronic conversion, output power conversion device, AC power input conversion to DC power output, etc., can solve the problem of insufficient reliability, difficult control system design, and controllable There are many devices and other problems, so as to improve the working reliability, control system design is simple and easy, and the effect of fewer driving circuits
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[0038] Such as figure 1 As shown, a single-phase five-level power factor correction circuit based on a hybrid H bridge, including an inductor L, a switch tube Q 1 , Q 2 , Q 3 , Diode D 1 ~D 9 , capacitance C 1 、C 2 ;
[0039] Diode D is connected to one side of the AC power supply Vs 1 anode, diode D 2 a cathode, the connection node forming terminal b;
[0040] The other side of the AC power supply Vs is connected to one end of the inductor L, and the other end of the inductor L is connected to the diode D 3 anode, diode D 4 Cathode; the other end of the inductor L and the diode D 3 、D 4 The connected nodes of constitute the endpoint a;
[0041] Switch tube Q 3 The drains are connected to the diode D 1 cathode, diode D 3 cathode, diode D 7 Anode, switching tube Q 1 Drain; switch tube Q 3 Drain and Diode D 1 、D 3 、D 7 , switch tube Q 1 The connection node of the drain constitutes terminal c;
[0042]Switch tube Q 3 The source is connected to the diode D...
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