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:
Jun. 22, 2021
Filed:
Jun. 16, 2020
Applicant:
Ablic Inc., Tokyo, JP;
Inventors:
Yusuke Kanazawa, Tokyo, JP;
Yoichi Suto, Tokyo, JP;
Assignee:
ABLIC INC., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F 1/52 (2006.01); G05F 1/56 (2006.01); G05F 3/22 (2006.01); G05F 3/26 (2006.01); H02M 3/156 (2006.01);
U.S. Cl.
CPC ...
G05F 1/561 (2013.01); G05F 1/52 (2013.01); G05F 3/227 (2013.01); G05F 3/262 (2013.01); H02M 3/156 (2013.01);
Abstract
A voltage-current conversion circuit includes a voltage-current conversion resistor connected to an input terminal, and a current mirror circuit which mirrors a current supplied from the voltage-current conversion resistor, wherein the current mirror circuit is constructed to include a depletion-type transistor whose source voltage is biased to be higher than the substrate voltage.