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:
Dec. 04, 2007
Filed:
Oct. 28, 2004
Jungwoo Song, Irvine, CA (US);
Jungwoo Song, Irvine, CA (US);
Broadcom Corporation, Irvine, CA (US);
Abstract
Provided is an amplifier including a system for controlling output stage quiescent current. The amplifier includes a driving stage including first pmos and nmos transistors coupled together, and an output stage connected to the driving stage. The output stage includes second pmos and nmos transistors coupled together. The amplifier also includes a quiescent control stage connected to the driving stage and including third pmos and nmos transistors coupled together, fourth pmos coupled to third pmos and 4nmos coupled to 3nmos. A topology of the coupled third pmos and nmos transistors substantially matches a topology of the coupled first pmos and nmos transistors, and 4pmos and nmos match to 2nd pmos and nmos.