GW Instek PSU Series - Master-Slave Series Operation Overview

OPERATION
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Master-Slave Series Overview
Background
When connecting PSU power supplies in series, up
to 2 units can be used in series and all units must
be of the same model. When operated in series, the
power supplies can be used to increase the voltage
output or setup the power supplies to output both
positive and negative polarities. Unlike with the
parallel operation, the series operation does not
require any special configuration as each power
supply is operated and controlled individually.
When the units are used in series, a number of
precautions and limitations apply. Please read this
overview before operating the power supplies in
series.
Master
Load
Ext-V
Ext-R
Slave
VMON
IMON
Ext-V
Ext-R
VMON
IMON
Limitations
Display
 Master and slave units display both the current
and the voltage. The total voltage is the sum of
the units.
OVP/OCP/UVL
 OVP, OCP and UVL level for each unit must be
set separately.
 The OVP and OCP protections are tripped
independently on the master and slave.