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Master
Phase Reg
SyncIn
En
X
CNT=Zero
CNT=CMPB
X
1
SyncOut
NOTE: Θ = X indicates value in phase register is a "don't care"
Figure 7-74. H-Bridge LLC Resonant Converter PWM Waveforms
P
I
period/4
P
EPWMxA
EPWMxB
P
Indicates this event triggers an interrupt
I
SPRUH22I – April 2012 – Revised November 2019
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Figure 7-73. Control of Two Resonant Converter Stages
Ext Sync In
V
(optional)
EPWM1A
EPWM1B
period
period/2
CB
CA
A
Copyright © 2012–2019, Texas Instruments Incorporated
Integrated
DC_bus
Magnetcis
LLC Resonant
EPWM1A
Transformer
EPWM1B
Cr
P
I
P
CB
CA
A
RED
ZVS
transition
CB
Indicates this event triggers an ADC
A
start of conversion
C28 Enhanced Pulse Width Modulator (ePWM) Module
Applications to Power Topologies
V
OUT
P
I
P
FED
ZVS
transition
731
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