GW Instek PSW Series User Manual

PSW Series User Manual
22
Theory of Operation
The theory of operation chapter describes the basic principles of
operation, protection modes and important considerations that
must be taken into account before use.
Operating Area Description
Background
The PSW power supplies are regulated DC
power supplies with a high voltage and current
output. These operate in CC or CV mode
within a wide operating range limited only by
the output power.
The operating area of each power supply is
determined by the rated output power as well
as the voltage and current rating. For example
the operating area and rated power output for
the PSW 30-36 is shown below.
Voltage
Current
30
360W rated power
10
12 36
PSW 30-36 Operating Area
When the power supply is configured so that
the total output (current x voltage output) is
less than the rated power output, the power
supply functions as a typical constant current,
constant voltage power supply.
If however, the power supply is configured
such that the total output (current x voltage
output) exceeds the rated power output, the

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