Conduction-cooled power supply from Vox Power delivers 300W

Vox Power has introduced the VCCR300 conduction cooled DC/DC power supply. Described as robust, rugged and reliable it is capable of silently delivering 300W in a compact footprint.
It measures just 7.43” x 4.6” x 1” (18.87 x 11.68 x 2.54mm) for easy integration in virtually any orientation, said the company, for flexibility and space saving advantages.
The VCCR300 Series provide a broad DC input voltage range, catering to standard 48V, 72V, 96V, and 110V railway battery requirements as outlined in EN50155. Its high-efficiency design minimises heat output and has a wide operating temperature range of -40 to +70 degrees C (+85 degrees C for 10 minutes) with minimal cooling requirement. It offers standard output voltages of 12V, 24V, 36V, and 48V, and all models have a wide adjustment range of 90 to 125 per cent.
The broad input range accommodates trends in today’s markets, for example battery electric vehicles (BEVs), where bus voltages are being raised for efficiency due to increased circuit requirements. The VCCR300 is also suitable for telecomms, roadside boxes, 5G applications, electrified moving equipment and transportation devices aimed at reducing space constraints while providing reliable, robust, and sustainable power, advised Carley.
Higher power solutions of 300, 600 and 900W and beyond can be achieved by using the onboard droop current share function, which allows end users to scale up or down depending on their power requirements while sharing the power load equally between each 300W product.
Internal fusing and full power 10ms holdup are included as standard and a remote shutdown signal can place the unit in a low power standby mode and the input under-voltage level can be programmed to meet specific application requirements.
David Carley, Vox Power’s director of global business development said: “The VCCR300 series delivers reliable power solutions for harsh and rugged environments, where higher power is essential.  It offers the ability to adjust and customise the power supply’s trimmable voltages, ensuring easy integration and versatility for customers.”
The VCCR300 power supplies meet the requirements of the latest railway standards (EN50155), MIL-STD-810G (Shock & Vibration) and is approved to the latest industrial safety standards (IEC/UL62368-1 3RD Edition). EMC emissions and immunity exceed the requirements of EN50121-3-2, EN55035 and EN55032 class B.
Conformal coating technology enhances reliability and performance by safeguarding against environmental factors and providing additional mechanical support. Calculated MTBF exceeds two million hours.

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