GW Instek PSW Series User Manual

PSW Series User Manual
30
Considerations
The following situations should be taken into consideration when
using the power supply.
Inrush current
When the power supply switch is first turned
on, an inrush current is generated. Ensure there
is enough power available for the power
supply when first turned on, especially if a
number of units are turned on at the same
time.
Caution
Cycling the power on and off quickly can cause the
inrush current limiting circuit to fail as well as
reduce the working life of the input fuse and power
switch.
Pulsed or Peaked
loads
When the load has current peaks or is pulsed, it
is possible for the maximum current to exceed
the mean current value. The PSW power
supply ammeter only indicates mean current
values, which means for pulsed current loads,
the actual current can exceed the indicated
value. For pulsed loads, the current limit must
be increased, or a power supply with a greater
capacity must be chosen. As shown below, a
pulsed load may exceed the current limit and
the indicated current on the power supply
ammeter.

GW Instek PSW Series Specifications

General

Ripple & Noise (CC)	≤ 3mArms
Protections	OVP, OCP, OTP
Remote Sense	Yes
Programmable	Yes
Operating Temperature	0°C to 40°C
Storage Temperature	-20°C to 70°C
Voltage Resolution	1mV
Current Resolution	1mA
Current Accuracy	±0.1% + 10mA
Ripple & Noise (CV)	≤1mVrms
Load Regulation (CC)	≤0.1% + 5mA
Line Regulation (CC)	≤0.1% + 5mA
Remote Interface	USB, RS232
Display	LCD