T3PSX3200 Series User Manual
14
Principle of Operation
Overview
The power supply consists of the following.
AC input circuit
Transformer
Bias power supply including rectifier, filter,
pre-regulator and reference voltage source
Main regulator circuit including the main
rectifier and filter, series regulator, current
comparator, voltage comparator, reference
voltage amplifier, remote device and relay
control circuit
The block diagram below shows the
CH1
circuit
arrangement. The single phase input power is
connected to the transformer through the input
circuit. Details of each part are described in the
next page.
Block diagram
Voltage
Amplifier
Voltage
Comparator
Series
Regulator
Instant Over
Load
Protection
Current
Comparator
Reference
Voltage
Source
Auxiliary
Rectifier &
Filter
“OR” Gate
Amplifier
Relay
Control
Main
Rectifier &
Filter
AC Input
Transformer
O/P