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Defense Line

GB21

Powerbox

DC/DC converter for gyros in helicopters

The operating conditions for this converter require that it withstand very strong vibrations. To achieve this, we joined together all major components with powerful adhesive and coated the entire circuit board with varnish. Another important factor is the very good output voltage filter. The converter works with two independent converters, allowing for a higher fail security of the system. Our team integrated high-speed amplifiers developed by our customer in the unit.

Product features

Very low noise outputs

Low ripple < 1 m VRMS Low Spikes < 10 m VPP High speed amplifiers on board Temperature range from –25°C to 85°C Convection cooling Three outputs (5 VDC, +15 VDC, –15 VDC) Conform to MIL-STD-461E standard Ruggedized version Conformal coated Load dump protection Independent operating converters

GB21 models

Model # Input voltage AC Input voltage DCnom
(min-max)
Output power Outputs Vnom (min-max) Outputs A max

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