PFR-100 Series

The GW Instek PFR-100 Series is a fanless multi-range DC power supply delivering 100W with natural convection cooling, eliminating fan noise entirely for use in acoustically sensitive test environments such as audio equipment development, anechoic chambers, and quiet cleanroom facilities. Constant power output across fivefold multi-range voltage and current operation maximizes the usable operating area from a single 100W instrument.

Model Comparison

Model	Power	Voltage	Current	Target Application
PFR-100L	100W	0 - 50V	0 - 10A	Low-voltage, high-current
PFR-100M	100W	0 - 250V	0 - 2A	Higher-voltage, lower-current

Key Features

Feature	Specification
Cooling	Natural convection (fanless)
Multi-Range	Fivefold constant power (V & I)
CV/CC Priority	Selectable mode
Bleeder Circuit	Controllable
Slew Rate	Adjustable (voltage and current)
Memory	Preset memory function
Output Delay	On/off delay function
Output Terminals	Front and rear panel
Protection	OVP, OCP, AC FAIL, OTP
Interface	USB, LAN, RS-232, RS-485 (std), GPIB (opt)
Monitoring	Web server, external analog control/monitor

CV/CC priority mode allows engineers to select whether constant voltage or constant current takes precedence during load transients, which is particularly useful for battery charging applications and LED driver testing. Adjustable slew rate for both voltage and current provides controlled output transitions, preventing inrush damage to sensitive DUTs. Preset memory and output on/off delay functions streamline repetitive test workflows.

A built-in web server enables browser-based monitoring and control from any networked device, while external analog control and monitor functions support integration with custom test fixtures. Front and rear panel output terminals offer flexible connection options for bench and rack-mounted configurations.

GSAS Micro Systems provides the PFR-100 Series across India with application engineering support, calibration services, and prompt delivery.