Electric power conversion systems – Current conversion – Using semiconductor-type converter
Patent
1996-08-06
1999-04-20
Wong, Peter S.
Electric power conversion systems
Current conversion
Using semiconductor-type converter
323282, 323267, H02M 700, G05F 1577, G05F 140
Patent
active
058962840
ABSTRACT:
A switching power supply apparatus which effectively utilizes energy accumulated in a leak inductance of a circuit to enhance the efficiency. The switching power supply apparatus having a switch element on/off controlled by a driving signal generated from a driver circuit, wherein a first capacitor and a first diode are inserted in series between both terminals of the switch , and a second capacitor and a second diode are further connected in series between a connecting point of the first capacitor and the first diode and a grounding terminal of the switch element to use charges accumulated on the second capacitor as a voltage source.
REFERENCES:
patent: 3736495 (1973-05-01), Calkin et al.
patent: 4363067 (1982-12-01), Randomski
Kanno Mitsuru
Murasato Michihisa
Tamoto Sadaharu
Nippon Steel Corporation
Vu Bao Q.
Wong Peter S.
Yutaka Electric Mfg. Co. Ltd.
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