DC/DC Converters for Curved, Uneven or Thermally Non-conductive Surfaces

ABSOPULSE Electronics' BAP 236TH Series dc/dc converters generate up to 250W output power. Cooling is by heat-sink fins on the top of the units - no fans and no attachment to a heat-sinking surface are required. The converters can be installed on curved, uneven and non-conductive surfaces, such as plastic, and are ideal for installation on the curved surfaces of vehicles or machine chassis. They have generous design headroom and are rated for operation over a -20oC to +50oC temperature range for full specification. The units comply with EN/UL60950 and equivalent industrial safety standards. A railway grade version which meets EN50155 is also available.

These converters operate from inputs of 24V (21-30V), 48V (42-60V) or 125V (105-145V) and provide tightly regulated outputs of 24V, 48V or 125Vdc. Other input/output configurations are available on request. An optional built-in redundancy diode allows for paralleling and N+1 operation. The redundancy diode also allows for connection to a back-up battery. Efficiency is 85% at full load, depending on the input/output configuration.

The converters are filtered to meet EN55022 Class B conducted and radiated requirements. Protection features include 2250Vdc input/output isolation, overload, over-voltage and short circuit protection with thermal shutdown and self-resetting. An output fail alarm (Form C) is available as an option. Other options include conformal coating, heavy ruggedizing and extended temperature ranges. The units are housed in compact, ruggedly constructed 113 x 115 x 261mm chassis-mount enclosures.

Standard versions of the series are priced in the US$260 range in quantities of 100.