Absopulse's opto-less wide-input DC/DC converter works for up to 30 years



ABSOPULSE DHR 150-24 converter

The DHR 150-24 is the latest addition to ABSOPULSE’s line of wide input range, long-life power conversion products developed for rugged industrial environments, designed for an operating life of up to 30 years. By eliminating optocouplers in the feedback loop and significantly reducing component count, the MTBF of the unit is greatly improved over conventional designs. Large design headroom, full electronic protection and 5000Vdc input to output isolation also contribute to the long operating life of the unit.

All heat generating components are installed on aluminum heat-sink blocks which are cooled via baseplate to a heat-sinking surface and by natural convection. The DHR 150-24 delivers the full 150W continuous output power over an extended temperature range from 0ºCto +70ºC, with no derating. Conformal coating provides additional environmental protection. The unit has a total footprint of just 114 x 51 x 201 mm
(4.5” x 2” x 7.9”). 

The DHR 150-24 converter accepts any single dc-input from 90V to 360Vdc and delivers 24Vdc ± 0.3V. Hold up time is a 20ms at a nominal input voltage. Regulation is better than 1% from no load to full load across all line and load conditions. Custom input and output voltages are available on request.

The unit is filtered to meet EN55022 Class B conducted and radiated requirements, which minimizes interference in the operation of other electronic equipment.  It complies with EN/IEC60950-1 and corresponding UL and CSA industrial safety standards.