SFS5 Datasheet, PDF (19/21 Pages) List of Unclassifed Manufacturers – AC-DC Converter Compact Miniature Type

DATASHEET
SEP 05, 2007
SFS5 Series AC-DC Converter Compact Miniature Type
Instruction manual
1. Basic connection
L
N
Input
AC85~264V
50~60Hz
Output
GND
Load
NOTE: To avoid excessive voltage drop and for
improved noise, and short and thick wire should be
used to connect the load. Length below 50Cm & wire
thickness of 4.0A/mm² are recommended for reducing
wire loss when wire connection is necessary.
2. Parallel Operation
This supply can be operated the following ways.
Choose a diode in accordance with voltage, power
dissipation and heat radiation.
- Voltage : V ＞ Vo × 3
- Current : I ＞ Io × 3
- Design a proper heat sink according to power loss
at diode ( Pw = VF × Io )
- Use a schottky or fast recovery diode this has
a low VF.
3. Series Operation
Choose a diode in accordance with voltage,
power dissipation and heat radiation.
- Voltage : V ＞ Vo × 3
- Current : I ＞ Io × 3
- Design a proper heat sink according to
power loss at diode ( Pw = Vf × Io ).
- Use a schottky or fast recovery diode
this has a low VF.
+
+
-
Load
+
-
-
+
+
Load
-
-
+
+
Load
-
-
+
4. Over Current Protection
-
+
Load
Output current is grown, this is mainly due to
the poor coupling between the auxiliary winding
+
-
and the power winding. Which prevents proper
-
collapsing. When Vout goes low.
With Your Electronics POWERPLAZA
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