Dual mode boost converter and method of operation thereof

Details Dual mode boost converter and method of operation thereof Dual mode boost converter and method of operation thereof

1997-08-22

1998-11-03

Wong, Peter S.

Electric power conversion systems

Current conversion

Using semiconductor-type converter

363143, H02M 700

Patent

active

058318461

ABSTRACT:
A boost converter, a method of operating the same and a power converter employing the boost converter or the method. In one embodiment, the boost converter includes: (1) a rectifier bridge having first and second input nodes and first and second output nodes, the second input node couplable to a source of AC power, (2) an inductor coupled to the first input node and couplable to the source of AC power, (3) first and second switches, coupled to first and second capacitors of the boost converter and the first and second input nodes, respectively, that are controllable to apply AC power from the source of AC power to the inductor and (4) a contactor, coupled between an intermediate node in the rectifier bridge and the node between the first and second capacitors, that is controllable to achieve alternative open and closed states in which: (4a) in the open state, the first and second switches are coupled in series across the source of AC power and (4b) in the closed state, the first switch is coupled across the source of AC power to reduce an overall loss associated with the first and second switches.

REFERENCES:
patent: 3851182 (1974-11-01), Wallace
patent: 4268899 (1981-05-01), Rokas
patent: 5119283 (1992-06-01), Steigerwald et al.

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