The PRM Constant Current (CC) Demonstration Board is suitable for light-emitting diode (LED) applications such as street & stadium lighting, high-end projectors, active outdoor advertising and architectural installations. The board provides a precisely regulated current as required for direct drive multi-LED applications where the intensity and brightness are controlled by regulating the current through the LEDs.

The PRM CC board can be used to provide adjustable current up to 240 W
(5 A at 48 V) when employed as a standalone non-isolated source or can be combined with a range of VTM™ voltage transformers to provide an adjustable isolated current up to 100 A.

The board has Kelvin connections for measuring the efficiency of the V•I Chip components independent of load losses. Oscilloscope probe jacks are available for measuring output voltage, including output voltage ripple. The board is equipped with fused PRM inputs, system enable and disable, and option for mounting a V•I chip pushpin heat sink. For more details, see the User’s Guide (UG: 007) and the Applications Note: AN: 018 Providing a Constant Current for Powering LEDs using the PRM and VTM.