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. 12, 2018
Filed:
Jan. 25, 2017
Applicant:
Psemi Corporation, San Diego, CA (US);
Inventor:
Jaroslaw Adamski, Streamwood, IL (US);
Assignee:
pSemi Corporation, San Diego, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/02 (2006.01); H03F 1/22 (2006.01); H03F 3/19 (2006.01); H03F 3/21 (2006.01); G05G 1/56 (2008.04); G05F 1/595 (2006.01);
U.S. Cl.
CPC ...
H03F 1/0233 (2013.01); G05F 1/595 (2013.01); H03F 1/223 (2013.01); H03F 3/19 (2013.01); H03F 3/21 (2013.01); H03F 2200/451 (2013.01);
Abstract
Systems, methods and apparatuses for efficient control of a pass device driven into its triode region of operation are described. Output drive capability of an operational amplifier driving the pass device is boosted during a transition of the pass device from operating in a triode region to operating in a saturation region. An exemplary implementation of an LDO controlling pass devices for providing burst RF power to a power amplifier is described. An alternative configuration that boosts the driving capability of the operational amplifier using an asymmetrical mirroring circuit is also described.