User's Manual

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14-B DC Power Supply
AC power is received at the IEC socket
i
ntake and passes the line filter. There are
safety fuses on both lines. There are control
power supply and FET drain power supply .
Start up is usually made by turning on and off
of control power supply. DC 12V, 24V and 100V
are available when control power supply is
turned on, and are always outputted once the
POWER is turned on.
There are a magnet relay at primary side and
DC ON/OFF function at secondary side.
Depending on the operating condition, this
power supply is turned on and off through the
control circuit, and is provided in this power
supply to meet IEC61000-3-2 harmonics
regulation.
１4 Block Diagram and Explanation of Major Circuitry
14-C Control Circuit
Control circuit performs various control using
m
icro-processor PIC18F8722 chip. Also, basic
interface meet the necessary rules and
conditions using the specialized semiconductor
devices.