Booster circuit and inverter topology with cascade diode circuit
A boost circuit and diode technology, applied in the field of improved topology, PFC boost circuit, power factor correction boost circuit, and power module, can solve the problems of high manufacturing cost of conventional circuits, and achieve improved switching characteristics and reverse recovery charge The effect of reducing and improving efficiency
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[0059] The invention will now be explained in more detail with reference to the accompanying drawings. refer to figure 1 , reference will first be made to a conventional neutral boost power factor correction (PFC) circuit in order to better understand the basic principles of the invention. The neutral boost PFC circuit uses a first input node 102 via an inductor L to connect to an alternating current power supply AC. The first transistor T1 and the second transistor T2 are connected in series between the first input node 102 and the second input node 104 connected to a reference potential, eg ground. In the illustrated embodiment, transistors T1 and T2 comprise insulated gate bipolar transistors (IGBTs). Accordingly, each of transistors T1, T2 is connected in anti-parallel with diodes D5 and D6, respectively. However, it is obvious to a person skilled in the art that other semiconductor switches can be used instead of IGBTs, such as field-effect transistors FETs, such as me...
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