Soft switch full-bridge phase-shift circuit with clamping circuit and its clamping method
A full-bridge phase-shifting and clamping circuit technology, which is applied in the direction of high-efficiency power electronic conversion, electrical components, and adjustment of electrical variables, can solve problems such as reducing circuit reliability, and achieve improved reliability, avoiding shocks, high reliability and The effect of versatility
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[0029] The present invention will be described in further detail below through specific embodiments and in conjunction with the accompanying drawings.
[0030] A kind of novel phase-shifting full-bridge circuit that the present invention proposes sees figure 2 , it uses the clamp winding of the resonant inductor to realize the voltage clamping of the resonant inductor. While retaining the original soft switching characteristics, it can solve the problem caused by the reverse diode recovery, so it is called "soft switching with resonant inductor clamping Phase-shifted full-bridge circuit". This circuit also has its practical improved circuit, that is, a resistor Rc ( image 3 ). This method ensures that the excess energy of the resonant inductor is consumed in time in each switching cycle of the circuit, eliminates the influence caused by the recovery of the reverse diode, and improves the reliability of the circuit.
[0031] figure 2 The new type of resonant inductor cla...
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