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1. (WO2015119961) DIFFERENTIAL OUTPUT MODE FOR A MULTI-MODE POWER CONVERTER

Pub. No.:    WO/2015/119961    International Application No.:    PCT/US2015/014292
Publication Date: Fri Aug 14 01:59:59 CEST 2015 International Filing Date: Wed Feb 04 00:59:59 CET 2015
IPC: H03F 1/02
H03F 3/181
H03F 3/217
Applicants: CIRRUS LOGIC, INC.
Inventors: MELANSON, John, L.
KING, Eric, J.
Title: DIFFERENTIAL OUTPUT MODE FOR A MULTI-MODE POWER CONVERTER
Abstract:
A method may include sequentially applying a plurality of switch configurations in a power converter to selectively activate or deactivate each of the plurality of switches in order operate the power converter as a differential output buck converter, such that: during a charging phase of the power converter, the power inductor is coupled between (i) one of a first terminal of a power source and a second terminal of the power source and (ii) one of a first terminal of the output load and a second terminal of the output load; during a transfer phase of the power converter, at least one of the plurality of switches is activated in order to couple the power inductor between the first terminal of the output load and a second terminal of the output load; and the output voltage comprises a differential voltage between the first and second terminal of the output load.