Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Reexamination Certificate
2009-03-09
2011-10-18
Sterrett, Jeffrey (Department: 2838)
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
Reexamination Certificate
active
08040698
ABSTRACT:
Disclosed a switching power source apparatus including: a transformer including a primary winding and a secondary winding; a switching element to intermittently apply a voltage to the primary winding by an on-off operation; and a synchronous rectifying element to rectify a current in the secondary winding, wherein the switching power source apparatus is a flyback system switching power source apparatus to receive input of electric power from a primary winding side to perform voltage output to a secondary wiring side, and the switching power source apparatus further comprises a load detection circuit to compare an output voltage to be output onto the secondary winding side with a voltage at a node between the synchronous rectifying element and the transformer by adding predetermined weighting to the voltages to be compared so as to generate a signal indicating a magnitude of an output load.
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Holtz, Holtz, Goodman & Chick, P.C.
Mitsumi Electric Co. Ltd.
Sterrett Jeffrey
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