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:
Jan. 31, 2023
Filed:
Jun. 23, 2021
Applicant:
Richwave Technology Corp., Taipei, TW;
Inventors:
Tien-Yun Peng, Taipei, TW;
Chih-Sheng Chen, Taipei, TW;
Assignee:
RichWave Technology Corp., Taipei, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/32 (2006.01); H03F 3/20 (2006.01);
U.S. Cl.
CPC ...
H03F 1/32 (2013.01); H03F 3/20 (2013.01); H03F 2200/165 (2013.01); H03F 2200/468 (2013.01);
Abstract
A power amplifier includes a transistor, a temperature sensor and a filter. The transistor is used to receive a bias signal and amplify a radio frequency (RF) signal. The temperature sensor is arranged in proximity to the transistor, and is used to detect a temperature of the transistor to provide a voltage signal at a control node accordingly. The filter is coupled to the temperature sensor and is used to filter the voltage signal to generate a filtered voltage. The bias signal is adjusted according to the filtered voltage.