The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 18, 2007
Filed:
Aug. 10, 2005
Applicants:
Yuan-ho Liu, Fengyuan, TW;
Chun-hsiung Chen, Hsinchu, TW;
Chun-ku Lin, Boashan Shiang, TW;
Inventors:
Assignee:
Holtek Semiconductor, Hsinchu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 6/68 (2006.01);
U.S. Cl.
CPC ...
Abstract
A power control apparatus for electric cookers includes an input unit, an output unit, a micro controller unit (MCU), having a programmer pulse generator (PPG) and at least an analog/digital converter built therein, a power circuit, an exciter-coil circuit, an output circuit of insulated gate bipolar transistor (IGBT), and a drive circuit of insulated gate bipolar transistor (IGBT). A command can be inputted externally to the MCU for restarting or stopping the output of the PPG and the PPG is capable of outputting pulses of programmable pulse width.