GW Instek SPS-1230 - Page 15

OVERVIEW
15
CV/CC Crossover Characteristics
Background
SPS power supplies automatically switch between
constant voltage mode (CV) and constant current
mode (CC), according to the load conditions.
When the current level is smaller than
the output setting, SPS operates in
Constant Voltage mode. The C.V.
indicator on the front panel turns green.
The Voltage level is kept at the setting
and the Current level fluctuates
according to the load condition until it
reaches the output current setting.
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When the current level reaches the
output setting, SPS starts operating in
Constant Current mode. The indicator
on the front panel turns red (C.C.) The
Current level is kept at the setting but
the Voltage level becomes lower than
the setting, in order to suppress the
output power level from overload.
When the current level becomes lower
than the setting, SPS goes back to the
Constant Voltage mode.
Diagram
Vmax
Imax
Constant
Voltage
Constant
Current
Vout
Iout