Datasheet

Q1T
CRES
CRES
LM
LK
Q1B
VBUS
VBUS
Transformer
COUT1
QSR1
QSR2
LRES
DPWM0A
DPWM0B
DPWM1A
DPWM1B
Driver
Driver
Driver
Driver
RS
RS1
RS2
CS
RF2 CF
RF1
RLRES
ESR1
COUT2
ESR2
EAP0
EAN0
NP
NS
NS
AD04
ADC13
EAP1
AD03
Oring Circuitry
V
OUT
I
LR
(t)
I
LM
(t)
I
SEC
(t)
V
CR
(t)
V
OUT
(t)
Rectifier and filter
UCD3138
www.ti.com SLUSAP2F –MARCH 2012–REVISED NOVEMBER 2013
Figure 4-4. Secondary-Referenced Half-Bridge Resonant LLC Control
With Synchronous Rectification
Copyright © 2012–2013, Texas Instruments Incorporated Functional Overview 43
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