HV9906X データシートの表示（PDF） - Supertex Inc
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HV9906X Datasheet PDF : 10 Pages
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Application Information - continued
Power Factor Corrected Average Current LED Lamp Power Supply
HV9906
D1 D2
80VAC
to
135VAC
D4 D3
C1
D6
D7
L2
Negative Voltage
C9
D8
LED-1
Row 1
L1
R10
M1
LED-2
Row 1
R1
U1
C6
Q1
D5 C3
R2
C2
R3
C4
+Vin GATE
R6
Von
NS
HV9906
C5
Vdd
PS
AGND PGND R4
R5
R7
R8
C7
C8
LED-5
Row 1
R9
LED-1
Row 2
LED-2
Row 2
LED-5
Row 2
LED-1
Row 3
LED-2
Row 3
LED-5
Row 3
This power factor corrected circuit provides a constant average
current output to power LED lamps.
It is intended to meet the following specifications:
Input Voltage
80VAC to 135VAC
LED String Forward Voltage 20V
Power Factor
>0.95
THD
<15%
P
10W
12V (6 cell) Lead-Acid Battery Charger
12VDC to 400VDC
or
65VAC to 280VAC
1N4007
D1 D2
D4 D3
C1
0.1uF
400V
R1
8M
R1
100k
C2
10uF
D5
D6
MURS120T3 MURS120T3
C3
L1
D7
MURS120T3
U1
+Vin GATE
M1
Von
NS
HV9906
Vdd
PS
AGND PGND
L2
- 12V
Lead-Acid
+ Battery
R3
225k
R5
13.3k
R6
500
R4
150k
R7
0.5
This floating battery charger circuit will charge a 6 cell 12V lead-
acid battery to a float voltage of 13.8V and provides a 1A charging
current limit for a severely discharged or shorted battery.
When the discharged battery terminal voltage is at 12V, the
charging current is 130mA. The charging current decreases as the
battery charges and the terminal voltage rises. When the
maximum float voltage of 13.8V is reached the current into the
battery will be essentially zero.
10
07/23/02
Supertex, Inc. 1235 Bordeaux Drive, Sunnyvale, CA 94089 TEL: (408) 744-0100 FAX: (408) 222-4895 www.supertex.com
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