ABSOPULSE Electronics′ DIO 120 Series is a 120W, corona-free 20kV isolated DC-DC converter. The series was developed for powering electronic circuits floating on several kilovolts of operating voltage. The units are typically used for high power gate drivers and similar applications in oil and gas, mining, railway and industrial environments.

The 120W converters accept a 24Vdc or 48Vdc input and deliver a single output of 12Vdc, 15Vdc or 24Vdc (5A current limit). Other inputs and outputs, as well as a built-in redundancy diode for parallel and N+1 operation, are available on request.

The DIO 120 converters are tested for corona (partial discharge) extinction at a minimum of 10kVrms and Hi-Pot tested for 20kVrms. 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 2-5kVrms. 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, 20kV isolation input/output and output/chassis, the use of transformers engineered with ABSOPULSE′s field-proven proprietary technology and comprehensive protection circuitry further contribute to the high MTBF.

Customized versions of this design as well as a dual output version are available.  Please contact ABSOPULSE Electronics to discuss your application requirements.

Please refer to DIO 120 for the data sheet and more detailed product description.