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. 26, 2017
Filed:
Dec. 22, 2015
Applicant:
Alps Electric Co., Ltd., Tokyo, JP;
Inventors:
Ken Kawahata, Miyagi-ken, JP;
Masahiko Ota, Miyagi-ken, JP;
Assignee:
Alps Electric Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 15/20 (2006.01);
U.S. Cl.
CPC ...
G01R 15/20 (2013.01); G01R 15/207 (2013.01);
Abstract
If an output voltage increases higher than a first limit voltage, a first output transistor is controlled such that the output voltage approaches the first limit voltage, and if the output voltage decreases lower than a second limit voltage, a second output transistor is controlled such that the output voltage approaches the second limit voltage. As a result, it is possible to limit the range of the output voltage and to reduce power consumption, without an increase in an output current at the time of limiter operation, differently from a voltage limiter circuit of the related art.