Electricity: power supply or regulation systems – In shunt with source or load – Using a three or more terminal semiconductive device
Reexamination Certificate
2009-08-11
2011-12-27
Nguyen, Matthew (Department: 2838)
Electricity: power supply or regulation systems
In shunt with source or load
Using a three or more terminal semiconductive device
C323S222000, C323S271000
Reexamination Certificate
active
08085007
ABSTRACT:
A switching power supply circuit, which includes: a switch; a coil serving as an energy transmitting element; and a capacitor serving as an output generation circuit that outputs, as an output voltage, the energy transmitted from the coil. The switching power supply circuit also includes an output voltage detection circuit that generates a detection signal according to the output voltage; a PNP transistor serving as a transmission circuit that outputs a transmission signal according to a value of the detection signal; and a controller that controls the switch according to the transmission signal. The switching power supply circuit further includes a diode serving as a rectifying element connected between the transmission circuit (PNP transistor) and the controller.
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English language Abstract and translation of Fig. 3 of JP 10-191625, Jul. 21, 1998.
English language Abstract of JP 2006-340563, Dec. 14, 2006.
English language Abstract and translation of Fig. 1 of JP 2007-159304, Jun. 6, 2007.
Murata Kazuhiro
Sakimura Hiroko
Greenblum & Bernstein P.L.C.
Nguyen Matthew
Panasonic Corporation
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