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. 12, 2021
Filed:
Mar. 26, 2019
Applicant:
Murata Manufacturing Co., Ltd., Kyoto, JP;
Inventors:
Takeyuki Okabe, Kyoto, JP;
Fuminori Morisawa, Kyoto, JP;
Mizuho Ishikawa, Kyoto, JP;
Yuri Honda, Kyoto, JP;
Assignee:
MURATA MANUFACTURING CO., LTD., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/04 (2006.01); H03F 3/21 (2006.01); H03F 1/02 (2006.01); H03F 3/213 (2006.01); H03F 1/30 (2006.01);
U.S. Cl.
CPC ...
H03F 3/211 (2013.01); H03F 1/0216 (2013.01); H03F 3/213 (2013.01); H03F 1/302 (2013.01); H03F 3/04 (2013.01); H03F 2200/451 (2013.01); H03F 2200/468 (2013.01); H03F 2203/21127 (2013.01);
Abstract
A control circuit includes a first output unit configured to output a constant bias current for setting an electrical bias state of a bias circuit to the bias circuit; a second output unit configured to output a bias control current or constant voltage for controlling the electrical bias state of the bias circuit to the bias circuit; a resistor having one end connected to a reference potential; and a switch provided between another end of the resistor and an output terminal of the second output unit.