Samsung SCX-5315F Service Manual page 157

3-8 SMPS (Switching Mode Power Supply) Unit.
3-8-1 SMPS Specifications
The SMPS (Switching Mode Power Supply) Unit used here is a PWM (Pulse Width Modulation) type power
supply unit that supplies DC+5V to controller and control panel, and DC+5V, DC+24V and DC+12V to the
engine. It also supplies AC power to fixer heat lamp.
No. Output Channel
Channel Name
1
Rated Output Voltage
2
Rate Output Current
3
Maximum Load Current
4
and Load Pattern
Load Change Range
5
Rate output voltage
6
(For rated I/O)
1) Total Output Voltage
Deviation
7 (Input, Load, Temp., Aging)
2) Dynamic Input Change
3) Dynamic Load Change
Refer to ripple & noise 27
8
Refer to load short and
overload protection 23
9
Refer to load short and
overload protection 23
Samsung Electronics
Ch.1
+5.1V
+5.1V
2A
2.5A Continued
0.5~2.0A
+5.1V±5%
(+4.84~+5.35V)
Including All
+5.1V±5%
(+4.84~+5.35V)
Including Set Error
150mVp-p or less
Must not ignite or
generate smoke
when output shorted
for 5 sec.
- This Document can not be used without Samsung's authorization -
Ch.2
+24.0V +12.0V
+24.0V +12.0V
2.5A 0.8A
3.0A Continued 0.8A Continued
0.1~0.3A 0.1~0.8A
+24.0V±10% +12V±5%
(+21.60~+26.40V) (+11.40~+12.60V)
Including All Including All
+24.0V±10% +12V±5%
(+21.60~+26.40V) (+11.40~+12.60V)
Including Set Error Including Set Error
500mVp-p or less 200mVp-p or less
Output voltage must Must not ignite or
shutdown withing generate smoke
the range of when output shorted
3.5A~6.5A for 5 sec.
Circuit Description
Ch.3
3-37