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:
Sep. 10, 2019
Filed:
Jun. 01, 2018
Applicant:
Beijing Huntersun Electronic Co., Ltd., Beijing, CN;
Inventors:
Assignee:
BEIJING HUNTERSUN ELECTRONIC CO., LTD., Beijing, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03G 3/20 (2006.01); H03F 3/21 (2006.01); H03F 3/195 (2006.01); H03F 3/213 (2006.01); H03F 1/30 (2006.01); H03F 1/02 (2006.01);
U.S. Cl.
CPC ...
H03F 3/211 (2013.01); H03F 1/0211 (2013.01); H03F 1/302 (2013.01); H03F 3/195 (2013.01); H03F 3/213 (2013.01);
Abstract
An apparatus for power amplifier control is provided, applied to a multi-stage power amplifier. The apparatus controls an input voltage of an amplification triode in the first amplification stage, by using a detected current change at a base of an amplification triode in the last amplification stage, achieving control of output power and a maximum output current of the multi-stage power amplifier, greatly reducing an influence of current detection on maximum output power and maximum output efficiency of the power amplifier.