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:
Mar. 07, 2017
Filed:
Oct. 30, 2015
Qualcomm Incorporated, San Diego, CA (US);
Ngai Yeung Ho, San Diego, CA (US);
Hua Guan, San Diego, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
The embodiments described herein relate to an improved regulator circuit technique having a dual-loop configuration with a current regulation loop to provide the transient response and a voltage regulation loop to provide accurate DC voltage regulation. The current regulation loop comprises a pass transistor, a current sensing transistor, a current summation circuit, and a series of current mirrors to provide a fast load transient response current. The voltage regulation loop includes an output voltage feedback network, an error amplifier, a compensation capacitor, and the current sensing transistor and is configured to provide accurate DC offset regulation to diminish output voltage errors introduced by the transient load currents.