Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Reexamination Certificate
2005-07-12
2005-07-12
Berhane, Adolf (Department: 2838)
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
C363S071000, C363S095000
Reexamination Certificate
active
06917527
ABSTRACT:
A low-cost, easily-miniaturized switching power supply restrains voltage stress on first and second main switches. The switching power supply has small loss and low noise, enables setting of duty factors over a broad range, and has reduced thickness. The first main switch has one end connected with a negative electrode of an input voltage, and the second main switch has one end connected with a positive electrode of the input voltage. A first magnetic element is connected to the first main switch, and a second magnetic element is connected to the second main switch and the first magnetic element. The switching power supply has: a first diode connected to the first main switch, the first magnetic element, and the second magnetic element; a second diode connected to the first diode, the second main switch, and the second magnetic element; and an auxiliary switch between the diodes.
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