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. 29, 2007
Filed:
Oct. 14, 2005
Applicants:
Iwao Fukushi, Gunma-ken, JP;
Noriaki Okada, Ota, JP;
Inventors:
Iwao Fukushi, Gunma-ken, JP;
Noriaki Okada, Ota, JP;
Assignee:
Sanyo Electric Co., Ltd., Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
H03K 5/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
A voltage detection circuit, comprises a constant-current circuit, a current mirror circuit operated by the constant-current circuit, at least one diode-connected first transistor disposed between an output of the current mirror circuit and a detected voltage, and an output circuit outputting one logic voltage in response to a turn-on of the first transistor when the detected voltage is a predetermined voltage or higher, and outputting the other logic voltage in response to a turn-off of the first transistor when the detected voltage is lower than the predetermined voltage.