TDK-Lambda CHVM2 Series, Инструкция по эксплуатации

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INSTRUCTION MANUAL
CHVM2 Series
TDK­Lambda
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■ To reduce output noise further
The CHVM series does need any external parts, however to lower the output noise even farther, connect a
capacitor C2 like the figure below.
When lowering the output noise even more, keep in mind the input/output wiring, creepage and area distance,
while keeping the wiring as thin as possible and layout the C2 near the Load.
Point!
(1) When choosing a capacitor that connect to the input, choose one which is a high frequency characteristic
capacitor.
(2) Common line should be designed thick and short to make same impeadance small.
(3) The capacitor which is connected to the output side should be able to withstand the pressure, and connect to
the load side.
At this time, the capacitor lead should be shortened. Also, when the load response time is a problem, please be
aware of the time constant.
■ Safety standard
The CHVM series has attained the UL60950­1, CSA60950­1 certification.
When using the CHVM series as a Recognized certified product please mount an input fuse as shown below.
Choose a fuse(F1) from below:
･ UL Listed products
･
DC250V
､
Rated current 2A type
11/11
12V
+
Vin
-
Vin
Vout (+ or -)
Vout
(Com)
Vref Vcont
Load
1
2
(OPEN)
4
6
3
+
C1
C2
7
+
C1=47
μ
F
C2=4700pF
5
ON/OFF
SW1
SW1
Open=ON
Short=OFF
Output voltage control
0 V to 4V impressed
CHVM
F1
12V
+Vin
-Vin
Vout (+ or -)
Vout
(Com)
Vref Vcont
Load
1
2
(OPEN )
4
6
3
+
C1
C2
7
+
C1=22 to 47 μ F
C2=0.047 to 0.1
μ
F
5
ON/OFF
SW1
SW1
Open =ON
Short=OFF
Output voltage control
(Impress 0V to 4 V)
CHVM
F1