Search International and National Patent Collections

1. (WO2018165991) METHOD AND APPARATUS OF DEAD TIME TUNING IN AN INVERTER

Pub. No.:    WO/2018/165991    International Application No.:    PCT/CN2017/077379
Publication Date: Fri Sep 21 01:59:59 CEST 2018 International Filing Date: Tue Mar 21 00:59:59 CET 2017
IPC: H02M 1/38
Applicants: HONG KONG APPLIED SCIENCE AND TECHNOLOGY RESEARCH INSTITUTE COMPANY LIMITED
Inventors: CHEN, Zi'ang
CHEN, Jun
LEE, Hang Sang
Title: METHOD AND APPARATUS OF DEAD TIME TUNING IN AN INVERTER
Abstract:
A method prevents shoot-through currents and reduces body-diode conduction time in an inverter circuit by changing dead times for transistors in the inverter circuit. A sensing resistor senses temperatures of transistors in the inverter circuit. A delay generator changes delay times in response to receiving the temperatures of the transistors from the sensing resistor. A dead time generation unit changes the dead times for the transistors in response to changes in the delay times.