Gresham Power Electronics has introduced a 500W dc-dc converter for military and non-tactical vehicle mounted communications and security systems.
Called GPD500 is now available from the Salisbury-based power supply maker, which accepts inputs between 10 to 20Vdc and delivers regulated 24Vdc output, designed to meet the requirements of MIL-STD 1275D.
“Sophisticated electronics developed for military vehicles, is designed to be powered from 24/28Vdc and in most cases is unable to operate from the 12Vdc electrical systems found on non-tactical vehicles,” said Gresham. “Instead of making significant changes to the equipment design, this issue is solved by the GPD500.”
Efficiency is typically 96% at full load and operation is over ambients from -40 to 70°C.
The IP67 epoxy-sealed enclosure is 149 x 27 x 119mm, weighs 750g and meets MIL-STD-1275A.
Built-in thermal sensing provides over-temperature shut-down with automatic recovery, and other protections include: reverse input, current limit, short-circuit, input under-voltage shut down and input over-voltage protection.
Several units can be paralleled for more power.
Other foreseen applications include recreational vehicles, marine and other rugged environments, mobile broadcast, cellular base-station power, industrial controls, emergency back-up and solar power systems.
Source: electronics weekly
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