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. 02, 2020
Filed:
Sep. 14, 2018
Applicant:
Nxp B.v., Eindhoven, NL;
Inventors:
Mark Pieter Van Der Heijden, Eindhoven, NL;
Gerben Willem De Jong, Veldhoven, NL;
Xin Yang, Eindhoven, NL;
Assignee:
NXP B.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/30 (2006.01); H03F 1/22 (2006.01); H03F 3/343 (2006.01); H03F 1/20 (2006.01); H03F 3/19 (2006.01);
U.S. Cl.
CPC ...
H03F 1/223 (2013.01); H03F 1/20 (2013.01); H03F 1/302 (2013.01); H03F 3/19 (2013.01); H03F 3/3432 (2013.01);
Abstract
A bias circuit for a bipolar RF amplifier is described. The bias circuit includes a current source coupled to a bias network. The bias network supplies a base current to the transistors in the amplifier circuit of the bipolar RF amplifier. The bias circuit includes a buffer coupled to the bias network and to the bipolar RF amplifier. The buffer provides additional base current to the amplifier circuit of bipolar RF amplifier and sinks avalanche current generated by the amplifier circuit of the bipolar RF amplifier.