Texas Instruments UCD3138 Digital Resonant LLC Converter Evaluation Module UCD3138LLCEVM-028 UCD3138LLCEVM-028 데이터 시트
제품 코드
UCD3138LLCEVM-028
40.0
60.0
80.0
100.0
120.0
140.0
5
10
15
20
25
30
Load Current (A)
S
w
it
ch
in
g
F
re
q
u
e
n
cy
(k
H
z)
400Vdc
380Vdc
350Vdc
Performance Data and Typical Characteristic Curves
9.3
Switching Frequency Control
Figure 9. Switching Frequency Control in LLC Mode
9.4
Load Operation with LLC and PWM
Figure 10. LLC Resonant Mode Operation at Full Load
Figure 11. PWM Mode Operation after F
SW
= 150 kHz
(Ch1 = V
GS
of Q7, Ch2 = current in resonant network, 2
(Ch1 = V
GS
of Q7, Ch2 = V
GS
of Q6, Ch3 = V
GS
of SR2,
A/div, Ch3 = V
DS
of Q7, Ch4 = V
O
ripple)
Ch4 = V
GS
of SR3)
15
SLUU979A – August 2012 – Revised July 2013
Digitally Controlled LLC Resonant Half-Bridge DC-DC Converter
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