GWINSTEK PEL-500 DC Electronic Load

The PEL-500 series single-channel electronic loads comprise five models offering voltage ranges of 0–80 V or 0–500 V and power ranges of 250–700 W. They are suited to R&D, quality control, ATE systems and production testing, including voltage/current source testing, switching power supply transient response, constant-voltage mode current-limit testing, battery simulation and battery discharge testing. The PEL-500 series provides 5-digit voltage, current and power displays, allowing users to monitor DUT measurement data simultaneously. To help users evaluate whether a DUT can withstand surge currents, the PEL-500 series offers a Surge test that simulates turn-on inrush current and hot-plug transient current. A built-in battery discharge test function lets users define discharge stop conditions according to DUT test requirements, including the discharge cutoff voltage (Vbatt), discharge capacity (AH, WH) and discharge stop time. Users can set the load-on and load-off voltages of the PEL-500 series to suit DUT characteristics: loading begins when the DUT output voltage rises to the load-on voltage and stops when it falls to the load-off voltage. Using the GO/NG function, users can preset judgment criteria based on DUT functions and specifications, and the PEL-500 series automatically generates judgment results against these criteria during testing. For power supply safety testing, the PEL-500 series provides not only a Short test function but also automatic overcurrent protection (OCP) and overpower protection (OPP) testing, simplifying tedious manual operations to verify DUT OCP/OPP trip points. The resulting measurements help users confirm whether the actual OCP/OPP trip points fall within specification. The PEL-500 series can output the load current waveform via an Imonitor BNC terminal to an oscilloscope, and also provides overvoltage, overcurrent, overpower and overtemperature protection plus reverse polarity detection; when any of these is triggered, the PEL-500 series takes protective or alerting measures to prevent damage from abnormal operating ranges.

• 5-digit voltage, current and power display

• Simultaneous display of voltage, current and power

• Short circuit time can be set during short circuit testing

• Automatic test function for overcurrent protection/overpower protection

• Battery discharge test function can set discharge stop voltage (Vbatt), discharge capacity (AH, WH) and discharge stop time

• Surge test can simulate power-on inrush current and hot-plug instantaneous current

• Constant current, constant resistance, constant voltage, constant power and Dynamic modes

• Overvoltage, overcurrent, overpower, overtemperature protection and reverse polarity detection

• Voltage polarity display can be set to positive ("+") or negative ("-")

• Communication interfaces: RS-232C, USB