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.:

US 8970302 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 03, 2015

Filed:

Aug. 05, 2013
Applicant:

Power Integrations, Inc., San Jose, CA (US);

Inventor:

Frank Joseph Schulz, Ottawa, CA;

Assignee:

Power Integrations, Inc., San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/45 (2006.01);
U.S. Cl.
CPC ...
H03F 3/45273 (2013.01);
Abstract

An operational amplifier includes a selective differential stage including a first current mirror and a current distribution circuit. First and second legs of the first current mirror are responsive to current in first and second paths of the current distribution circuit, which distributes a tail current in response to a first signal received by a first input of the operational amplifier. Current in a first path of a selection circuit in the second path of the current distribution circuit is responsive to a second signal received by a second input of the operational amplifier. Current in the second path of the selection circuit is responsive to a third signal received by a third input of the operational amplifier. An output stage generates an output signal responsive to a difference between the first signal and one of the second and third signals.


Find Patent Forward Citations

Schulz, Frank. (2015). Operational amplifier with selective input (U.S. Patent No. 8970302). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8970302

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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