Power Supply - Citizen CLP-621 Technical Manual

2-5. Power Supply

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, refer to the circuit diagram on the following pages:
Block A
Noise filter circuit
and rush current
preventing circuit
Block B
Block C
Current
Converter and driver
smoothing
circuit
circuit
2-55
Block E
Control circuit
2-5. Power Supply
Block D
Output
circuit
CLP-621 & CLP-631