Citizen CLP-631 - Power Supply

2-5. Power Supply
2-5. Power Supply
2-55 CLP-621 & CLP-631
The power supply is a frequency-fixed reverse type switching regulator which outputs +5V and
+24V DC. Power supply will be 120V AC type or 220-240V AC type.
2-5-1. Block diagram
The following shows a block diagram for this power supply. For the circuit corresponding blocks A
to E, r
efer to the circuit diagram on the following pages:
Block C
Converter and driver
circuit
Block D
Output
circuit
Block E
Control circuit
Block A
Noise filter circuit
and rush current
p
reventin
g
circuit
Block B
Current
smoothing
circuit