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DC/DC converters feature 20-kV isolation

Mon, 06/03/2013 - 10:51am

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120W DC/DC convertersABSOPULSE Electronics′ DIO 120 Series of DC/DC converters were developed for powering electronic circuits floating on several kilovolts of operating voltage. They are typically used for high power gate drivers and similar applications in oil and gas, mining, railway and industrial environments. The 120-W converters accept a single input 24 VDC or 48 VDC and deliver 12 VDC, 15 VDC or 24 VDC (5 A current limit). They are tested for corona (partial discharge) extinction at a minimum of 10 kVrms and Hi-Pot tested for 20 kVrms. The feedback system on the primary side employs a special sensing circuit instead of optical components, further enhancing reliability. Typical operating voltage potential between primary and secondary is 2-5 kVrms. This value depends on the specific application and contamination class, and is limited by the creepage distance of 76 mm (3.0″) on the PCB. Generous design headroom, 20 kV input/output and output/chassis isolation, comprehensive protection circuitry and the use of transformers engineered with the company′s proprietary technology further contribute to system reliability.

ABSOPULSE Electronics, www.absopulse.com

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