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HV9931 데이터 시트보기 (PDF) - Supertex Inc
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HV9931
Unity Power Factor LED Lamp Driver
Supertex Inc
HV9931 Datasheet PDF : 8 Pages
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8
Functional Circuit Diagram
D1
L1
D4
V
IN
~AC ~AC
R
CS1
i
L1
C
IN
R
S1
_
V
S1
+
R
T
C1
D2
+
V
C1
_
Q1
L2
i
L2
D3
R
S2
+
V
S2
_
GATE
PWMD
HV9931
-
VO
+
R
CS2
RT
OSC
CS1
Rref
1
VIN
RE G
VDD
SQ
R
CS2
R
ref2
GND
HV9931
7. 5V
C
DD
Switching Waveform
V
DD
GATE
0
t
i
L2
0
t
i
L1
0
t
6
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