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:
May. 06, 2008
Filed:
Jan. 11, 2006
Applicant:
Katsumi Inaba, Tondabayashi, JP;
Inventor:
Katsumi Inaba, Tondabayashi, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H 3/00 (2006.01); H02H 3/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
To reduce the electric power wasted in an overvoltage protection circuit, a regulator ICincorporates an overvoltage protection circuitthat stops the output operation of the regulator when the output voltage Vo becomes higher than a predetermined threshold voltage Vth. The overvoltage protection circuitincludes switch means FETthat turns on and off the overvoltage protection operation thereof according to a predetermined control signal.