TDK-Lambda CHVM1R5 Series, Instruction Manual

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INSTRUCTION MANUAL
CHVM1R5 Series
TDK­Lambda
<Page>
■ Test circuit
(1) The input­output ground lines and the case are connected inside.
(2) Vref is 6V (when external VR is 5KΩ)
(3) ON/OFF can be controlled by a transistor.
■ Block diagram
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12V
SW1
Load
1
2
4
6
3
SW1
Open=OFF
Short=ON
＋
C1
5
7
＋
Output voltage control
(0V to 6V applied)
C1=47μF
（OPEN）
＋Vin
－Vin
Vout (＋ or －）
Vout
(Com)
Vref
Vcont
ON/OFF
CASE
F1
12V
＋
＋
＋Vin
－Vin
Vout (＋ or -）
Vout(Com)
Vcont
Vref
Load
1
2
7
6
3 4
Control IC
Output voltage control
Over current protection
Reference voltage generator
Voltage detection
Case
External voltage
（0～6V）
or
VR （5kΩ）
5 ON/OFF
Open=OFF
Short=ON
ON/OFF
Control
DC­AC
converter
High­voltage
oscillation
transformer
High­voltage
rectifier