Electric power conversion systems – Current conversion – With condition responsive means to control the output...
Reexamination Certificate
2005-08-12
2011-11-22
Laxton, Gary L (Department: 2838)
Electric power conversion systems
Current conversion
With condition responsive means to control the output...
C363S037000, C219S663000, C219S664000, C219S665000, C219S667000, C219S668000
Reexamination Certificate
active
08064233
ABSTRACT:
A supplying power adjusting apparatus has excellent temperature response and excellent stabilities to power supply change and load change. The apparatus is provided with a semiconductor inverter for high-speed switching power control, which converts a direct current rectified by a rectifying circuit (10) into alternating current power in response to a control signal and supplies a heater (7) with the power; a temperature change detecting circuit (24) for detecting the temperature change of the heater (7); a power supply change detecting circuit (22) for detecting the power change of the rectifying circuit (10); a load change detecting circuit (23) for detecting the change of the alternating current power supplied to the heater (7); and a power control signal generating circuit (15) which calculates a power quantity to be supplied to the heater (7) and controls the frequency or duty ratio of a control signal to be added to the power controlling semiconductor inverter in response to the calculated results.
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Japanese Office Action dated Apr. 20, 2011 for Japanese Patent Application No. 2006-531765 (with translation).
Ishizu Hideo
Suzuki Masayuki
Kokusai Electric Semiconductor Service Inc.
Laxton Gary L
Oliff & Berridg,e PLC
Quddus Nusrat
Sanko Co. Ltd.
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