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:
Aug. 16, 2016
Filed:
Sep. 30, 2013
Broadcom Corporation, Irvine, CA (US);
Xuezhen Wang, Fort Collins, CO (US);
Russell Eliot Radke, Fort Collins, CO (US);
Kerry Alan Thompson, Fort Collins, CO (US);
BROADCOM CORPORATION, Irvine, CA (US);
Abstract
A multimode battery charger circuit supporting switch mode and linear mode charging operations. In various embodiments, the multimode battery charging circuit includes mode control circuitry, a linear gate driver, a pulse width modulation (PWM) control circuit, a programmable constant current control loop circuit, and a programmable constant voltage control loop circuit. In operation, the mode control circuitry receives a charge mode indication signal corresponding to a desired charge mode. Based on this signal, the mode control circuitry enables either the linear gate driver or PWM control circuit to provide control signals to output transistors coupled between an adapter power port and a battery pack, thereby supporting a plurality of charging modes. In some embodiments, one or more of the output transistors are formed on a common substrate with the multimode battery charger circuit.