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:
Jul. 07, 2015
Filed:
Mar. 06, 2013
Applicant:
Sandisk Technologies Inc., Plano, TX (US);
Inventors:
Shankar Guhados, Fremont, CA (US);
Feng Pan, Fremont, CA (US);
Assignee:
SanDisk Technologies Inc., Plano, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F 3/24 (2006.01); G05F 1/625 (2006.01);
U.S. Cl.
CPC ...
G05F 1/625 (2013.01);
Abstract
A right-half plane (RHP) zero (RHZ) compensation scheme to improve the stability of the operational amplifier. A resistance Ris implemented by a transistor. This transistor tracks process variations of the transistor drive by the op-amp to achieve better stability without requiring a bandwidth reduction. As a current source is not available to bias this transistor, a local bias circuit is used to provide this.