Rev. 4.0 5/22/2010
International Rectifier
Page 11 of 16
PROPRIETARY INFORMATION - This document and the information contained therein are proprietary and are not to be reproduced, used or disclosed
to others for manufacture or any other purpose except as specifically authorized in writing by
INTERNATIONAL RECTIFIER.
5 SYSTEM PERFORMANCE CHARACTERIZATION
Test Conditions – V
IN
=400V DC; Full Load (24V/6A, 12V/6A); No Load (24V/0A, 12V/0A)
5.1 Steady-State and Start-up Waveforms
Ch 1: Low-side device V
GS
–
Ch 3
: Voltage at VS pin
Ch 4
: Resonant tank current
Full Load Operation
No Load Operation
Full Load Start-up
No Load Start-up