Smps (Switching Mode Power Supply) Unit - Xerox WorkCentre Pro 412 Service Manual

Circuit Description
A R3 limits AC current and controls upper and lower REN meter.

5-8 SMPS (Switching Mode Power Supply) Unit.

5-8-1 SMPS Specifications
There are no user-serviceable parts inside the SMPS unit.
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
(Input, load, temp.,
aging)
7
2) Dynamic input
change
3) Dynamic load
change
Refer to ripple & noise
8
27)
5-36
Ch.1
+5.1V
+5.1V
2A
3A continuous
0.5~2.0A
+5.1V±5%
(+4.84 to +5.35V)
Including all
+5.1V±5%
(+4.84 to +5.35V)
including set error
150mVp-p or less
August 2001
Ch.2
+24.0V +12.0V
+24.0V +12.0V
2.5A 1.0A
3.5A continuous 1.0A continuous
0.3~2.5A 0.2~1.0A
+24.0V±10% +12V±5%
(+21.60 to (+11.40 to
+26.40V) +12.60V)
Including all Including all
+24.0V±10% +12V±5%
(+21.60 to (+11.40 to
+26.40V) +12.60V)
including set including set
error error
500mVp-p or 150mVp-p or less
less
Ch.3
WorkCentre Pro 412
Launch Issue