Circuit and method for controlling a synchronous rectifier conve

Details Circuit and method for controlling a synchronous rectifier conve Circuit and method for controlling a synchronous rectifier conve

1999-07-02

2000-03-14

Wong, Peter S.

Electric power conversion systems

Current conversion

Using semiconductor-type converter

363 89, 363 53, 323239, H02M 542, H02M 7217, H02H 7125, G05F 110

Patent

active

06038154&

ABSTRACT:
For use in a power system having a power train, a rectifier having an input and an output and a method of controlling the rectifier. The rectifier comprises: (1) switching circuitry coupled between the input and the output, the switching circuitry adapted to operate in selected one of (a) a bidirectional mode of operation and (b) an unidirectional mode of operation to rectify substantially alternating current at the input to produce substantially direct current at the output; and (2) control circuitry coupled to a control input of the switching circuitry, the control circuitry capable of sensing a characteristic of the power system and transitions the switching circuitry between the bidirectional mode and the unidirectional mode as a function of the characteristic thereby to prevent substantial reverse power flow through the rectifier.

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patent: 5532914 (1996-07-01), Kageyama et al.
patent: 5636116 (1997-06-01), Milavec et al.

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