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:
Oct. 06, 2009
Filed:
Feb. 13, 2007
Hideo Ishii, Osaka, JP;
Tetsuro Ikeda, Osaka, JP;
Kenzo Danjo, Osaka, JP;
Sansha Electric Manufacturing Company, Limited, Osaka-shi, Osaka-fu, JP;
Abstract
A rectifying circuit () converts inputted AC power to DC power. An inverter circuit () converts the DC power to high-frequency power in accordance with a switching control signal applied thereto from a control circuit (). A voltage transformer () voltage-transforms the voltage of the high-frequency power. An output-side rectifying circuit () rectifies the voltage-transformed power. An output detecting circuit () detects the magnitude of the voltage of the rectified power, and a signal representative of the detected voltage is applied to the control circuit (). The control circuit () generates such a switching control signal as to make the rectified power have a predetermined value. The value of the voltage from the rectifying circuit () is detected by an input detecting circuit (), and a signal representative of the detected voltage is applied to the control circuit (). The control circuit () controls the operation of the inverter circuit () in accordance with the detected voltage representative signal from the input detecting circuit () and the saturation magnetic characteristic of the voltage-transformer ().