Enhanced Pulse Width Modulator (ePWM) Reference Guide

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Power phase
EPWM1A
EPWM1B
RED
300
Φ2=variable
TBPHS
=(1200−Φ2)
RED
EPWM2A
EPWM2B
Power phase
FED
200
600
1200
FED
ZVS transition
ZVS transition
ZCA
Z
I
Z
I
Z
I
Z
CB
A
CA
CB
A
Z
Z
CB
A
CA
Z
Z
CB
A
CA
Controlling Zero Voltage Switched Full Bridge (ZVSFB) Converter
Figure 3-16. ZVS Full-H Bridge Waveforms
90 Applications to Power Topologies SPRU791D – November 2004 – Revised October 2007
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