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:
Apr. 17, 2018
Filed:
Aug. 02, 2016
Applicant:
Apex Microtechnology, Inc., Tucson, AZ (US);
Inventors:
Alan Lee Varner, Tucson, AZ (US);
Gregory Michael Patchin, Tucson, AZ (US);
Kirby Neil Gaulin, Tucson, AZ (US);
Assignee:
APEX MICROTECHNOLOGY, INC., Tucson, AZ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/52 (2006.01); H03F 1/02 (2006.01); H03F 3/45 (2006.01);
U.S. Cl.
CPC ...
H03F 1/0233 (2013.01); H03F 3/45179 (2013.01); H03F 2200/555 (2013.01); H03F 2203/45022 (2013.01);
Abstract
A selectable current limiter circuit to limit the current an amplifier with a load. The limiter circuit limits the current of an amplifier by comparing a voltage reference that follows the output swing of the amplifier to voltage drop across a current limiting resistor coupled to the output of the amplifier. The limiter circuits are operatively coupled to buffer and switch circuits that delay the current limiting until the limiter circuits are activated.