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:
May. 05, 2020
Filed:
Aug. 24, 2018
Applicant:
Allegro Microsystems, Llc, Manchester, NH (US);
Inventors:
Soo-Chang Choe, Andover, MA (US);
Craig S. Petrie, Merrimack, NH (US);
Assignee:
Allegro MicroSystems, LLC, Manchester, NH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/16 (2006.01); H03F 3/45 (2006.01); G01R 19/25 (2006.01);
U.S. Cl.
CPC ...
H03F 3/16 (2013.01); G01R 19/2513 (2013.01); H03F 3/45183 (2013.01); H03F 2200/151 (2013.01); H03F 2200/219 (2013.01); H03F 2200/69 (2013.01); H03F 2203/45006 (2013.01); H03F 2203/45144 (2013.01);
Abstract
A buffer amplifier comprises a source follower and a feedback amplifier. The feedback amplifier may be configured to control a drain current of the source follower to remain substantially constant independent of a load.