QPO-1-EVAL3

The QPO-1-EVAL3 is designed to allow full testing of the QPO-1 and its various performance settings to optimize final system design. The board of QPO-1-EVAL3 offers switch settings for the user to select preset values for the Rhr, Rsc, and Rsa resistors. Solder pads are available to mount user-selected values of these components if required. Please refer to the QPO-1 product data sheet, and the following pages for the proper application of this board. The EVAL3 accommodates Vicor's quarter brick DC-DC converters with an input up to 72 Vdc.

The QPO-1-EVAL3 output ripple attenuator SiP uses active filtering to reduce output ripple and noise (PARD) over 20 dB from 50 Hz to 500 kHz. The QPO-1 operates over a voltage range from 3 to 30 Vdc and supports load currents as high as 10A. Output regulation is maintained with remote sense or trim adjustment of the power supply. The closed loop architecture of QPO-1-EVAL3 improves transient response and ensures precise point-of-load regulation.

Other eval boards of QPO-1-EVAL3 (see part numbering description) allow easy evaluation with other DC-DC converters or power supplies with standard terminations.