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:
Dec. 15, 2015
Filed:
Nov. 22, 2013
Applicant:
Analog Devices, Inc., Norwood, MA (US);
Inventors:
Hio Leong Chao, San Jose, CA (US);
A. Paul Brokaw, Tucson, AZ (US);
Assignee:
Analog Devices, Inc., Norwood, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 5/22 (2006.01); G05F 3/26 (2006.01); G01R 19/00 (2006.01); H01L 23/38 (2006.01); G01R 19/14 (2006.01);
U.S. Cl.
CPC ...
G05F 3/262 (2013.01); G01R 19/0092 (2013.01); G01R 19/14 (2013.01); H01L 23/38 (2013.01);
Abstract
A bidirectional current sensor circuit can be configured to generate a scaled version of a load current using a first transistor from a power regulator output stage and a second transistor that can be a mirror or scaled version of the first transistor. A trim circuit can be provided to correct gain errors under current sinking or current sourcing conditions. In an example, the bidirectional current sensor circuit can be configured to detect a polarity or a magnitude of a current signal that is used to operate a thermoelectric device.