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:
Jun. 22, 2021
Filed:
May. 12, 2019
Applicant:
Smarter Microelectronics (Guang Zhou) Co., Ltd., Guangzhou, CN;
Inventors:
Assignee:
SMARTER MICROELECTRONICS (GUANG ZHOU) CO., LTD., Guangzhou, CN;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/22 (2006.01); H03F 3/68 (2006.01); H03F 1/26 (2006.01);
U.S. Cl.
CPC ...
H03F 3/68 (2013.01); H03F 1/26 (2013.01); H03F 2200/451 (2013.01);
Abstract
A signal amplifier includes one or more driver stage amplifiers and a power stage amplifier. The one or more driver stage amplifiers are connected in series. The one or more driver stage amplifiers and the power stage amplifier are connected to the same power supply, such that each of the at least one driver stage amplifier forms a loop with the power stage amplifier. The signal amplifier can further include a wave trap unit configured to block an oscillation frequency in the loop. One terminal of the wave trap unit is connected to the loop. The other terminal of the wave trap unit is grounded.