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1. (WO2018057214) DIGITAL SECONDARY CONTROL LOOP FOR VOLTAGE CONVERTER

Pub. No.:    WO/2018/057214    International Application No.:    PCT/US2017/048279
Publication Date: Fri Mar 30 01:59:59 CEST 2018 International Filing Date: Thu Aug 24 01:59:59 CEST 2017
IPC: H02M 3/157
Applicants: APPLE INC.
Inventors: ATTAH, Hubert
FLETCHER, Jay B.
TORRES, Erick O.
GOZZINI, Fabio
Title: DIGITAL SECONDARY CONTROL LOOP FOR VOLTAGE CONVERTER
Abstract:
An apparatus is disclosed, including a driver circuit, a comparator circuit, and a counter circuit. The driver circuit may be configured to source a current to a load circuit. The comparator circuit may be configured to perform a comparison of a reference voltage to a voltage across the load circuit. The counter circuit may be configured to modify a digital count value based on the comparison. The driver circuit may be further configured to adjust a value of the current using the digital count value.