Power Supply; Fig. 3-25; Low-voltage power supply- Page 61

CHAPTER 3  THEORY OF OPERATION

3-19

1.6

Power Supply

  1.6.1

Low-voltage power supply

The power supply uses a switching regulation system to generate the regulated DC power
(+5V and +24V), which are converted from the AC line.

The regulated output and the production code of each power supply are listed below;

Regulated Output

Production Code

+5V / 1.6 A
+24V / 2.15 A

100V: MPW1555
200V: MPW1455

For the circuit diagram of the low-voltage power supply PCB, see 

Appendix 20 or 21

.

Heater

Circuit

Thermal

Fuse

Lightning

Surge

Absorber

Feedback

Line

Filter

Fuse

Rectifier

Oscillator

24V

Regulation

Circuit

24V

5V

Lamp

(Heater)

(Engin Circuit)

Fuse

5V

Regulation

Circuit

Fig. 3-25