DC-DC Converter with 20kV Isolation Delivers 120W
18 June 2007
Absopulse Electronics' DIO 122 is a dual output, high voltage isolated DC-DC converter developed for high power gate drivers and similar applications in railway, oil and gas, mining, medical, and industrial environments.
The DIO 122 is corona (partial discharge) free at 12kVrms (minimum) and each unit is Hi-POT tested for 20kVrms isolation. The typical operating voltage potential between primary and secondary is 6.5V 10kVrms with the same isolation provided between the outputs.
Both outputs are highly regulated and have individual current limiting and short circuit protection. Isolation design features include encapsulating the output regulators in two separate insulation chambers, and the use of transformers engineered with Absopulse's field-proven proprietary technology. Creepage distances are more than 75mm.
This 120W converter provides 20Vdc at 3A from each output, with a higher number of outputs available on custom versions. It accepts a 48Vdc input (44Vdc to 56Vdc range).
The DIO 122 is filtered to meet EN55022 Class A EMI as a minimum. It is convection cooled and rated for operation over 0aC to 50aC without de-rating. The open-frame package measures 4inch x 12inch x 2.75inch and weighs 2.4 lbs.
