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Title: Hybrid zero-voltage switching (ZVS) control for power inverters

A power inverter combination includes a half-bridge power inverter including first and second semiconductor power switches receiving input power having an intermediate node therebetween providing an inductor current through an inductor. A controller includes input comparison circuitry receiving the inductor current having outputs coupled to first inputs of pulse width modulation (PWM) generation circuitry, and a predictive control block having an output coupled to second inputs of the PWM generation circuitry. The predictive control block is coupled to receive a measure of Vin and an output voltage at a grid connection point. A memory stores a current control algorithm configured for resetting a PWM period for a switching signal applied to control nodes of the first and second power switch whenever the inductor current reaches a predetermined upper limit or a predetermined lower limit.
Authors:
; ;
Publication Date:
OSTI Identifier:
1330713
Report Number(s):
9,484,840
14/471,961
DOE Contract Number:
EE0003176
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Aug 28
Research Org:
University of Central Florida Research Foundation, Inc. Orlando, FL (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 24 POWER TRANSMISSION AND DISTRIBUTION