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. 04, 2018
Filed:
Dec. 28, 2017
Applicant:
Rohm Co., Ltd., Kyoto, JP;
Inventors:
Yusuke Yoshii, Kyoto, JP;
Yuki Inoue, Kyoto, JP;
Assignee:
Rohm Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F 1/575 (2006.01); H03F 3/45 (2006.01); H03K 5/24 (2006.01); G05F 3/30 (2006.01);
U.S. Cl.
CPC ...
G05F 1/575 (2013.01); G05F 3/30 (2013.01); H03F 3/45475 (2013.01); H03K 5/24 (2013.01); H03F 2203/45522 (2013.01); H03F 2203/45534 (2013.01);
Abstract
As one example of the invention disclosed herein, a reference voltage generation circuit has: a first reference voltage source generating a first reference voltage; a second reference voltage source generating a second reference voltage having a temperature response different from that of the first reference voltage; a first comparator comparing the first and second reference voltages to generate a first comparison signal; and a selector selectively outputting one of the first and second reference voltages as a reference voltage according to the first comparison signal.