C&D Technologies Intros CD1244 DC/DC Converter
C&D Technologies Inc. (UK) and test and measurement specialist Acterna Corp. have developed a custom dc/dc converter design and mounting solution that delivers space savings and improves thermal management. Developed to address the size requirements of Acterna’s latest hand-held copper line and ADSL communications tester, the new dc/dc converter solution is suitable for other applications where space between PCBs prevents the use of conventional board-mounted devices.
Acterna’s HST-3000 is a rugged, battery-operated tester that is just 3in (76.2mm) high. The unit allows the addition of an optional copper analogue test board. A key component is the 2W, dual-output, dc/dc converter that provides the high-voltage isolation barrier between the line under test and the test circuitry. The custom converter solution was required as the available headroom of just under quarter of an inch (6.3mm) prevented the use of a standard part.
The custom CD1244 dc/dc converter is based on the modification of a C&D Technologies NMS0505 2W isolated dc/dc converter to allow it to be mounted to make use of the available space both above and below the CAT PCB. The CD1244 converter combines a 5V input with regulated ±5V outputs and features an isolation rating of 6kVdc. Housed in a UL 94V-0 compliant package, the device has dimensions of 0.58in x 1.28in x 0.037in (14.72mm x 32.60mm x 9.40mm) and incorporates a toroidal magnetic construction that minimizes external noise.
