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High-reliability power converters for airforce applications

By Adam Williams 26 Jan 2021 (Last Updated January 27th, 2021 16:20)

VPT’s DV Series offers state-of-the-art solutions for when your programme needs military-grade high-reliability DC-DC converters, EMI filters, and other power accessories qualified to MIL-PRF-38534 Class H and Class K. By selecting VPT’s isolated DC-DC converters and our dedicated range of non-isolated, synchronous, buck-regulated point-of-load DC-DC converters, you can save weight, cost, heat and board space for your application.

Sponsored by VPT Sponsored by Visit Company
VPT specialises in military-grade high-reliability DC-DC converters.

The DV Series is the ideal solution for military and commercial aircraft, as well as for multiple weapons systems. The series includes isolated, thick-film hybrid converters that as suitable for a range of flight-critical applications. Other products in the range include high-efficiency DC-DC converters, isolated hybrid DC-DC converters with EMI filters and integrated EMI filtering capability, and point-of-load DC-DC converters that can be combined with an isolated DC-DC converter to reduce the system’s weight, heat, size, and cost.

VPT’s EMI filters and transient suppression modules further reduce noise. The DV Series also includes inrush current limiter that controls the inrush current of the DC-DC converters, EMI filters, and discrete input capacitors. Thermal pads provide low thermal resistance, fill air gaps, and offer a high level of thermal performance. All products in the DV Series are operational in temperatures ranging from -55°C to 125°C.

DV Series certifications include:

  • Qualified to MIL-PRF-38534 Class H and Class K
  • MIL-PRF-38534 Class H and Class K certified manufacturing facility
  • MIL-STD-704A input voltage requirements
  • DO-160
  • ISO-9001
  • MIL-STD-883 environmental screening
  • MIL-STD-461 C-F when used with a VPT EMI filter
  • DLA SMDs available for most modules

Other features of the  DV Series include:

  • 100% hermetic
  • No optocouplers
  • High efficiencies
  • 28Vin nominal unless otherwise noted
  • High performance over -55°C to 125°C military temperature range, no power derating required
  • A host of circuit protection features
  • Fault-tolerant magnetic feedback circuits
  • Thick-film hybrid technology for maximum reliability
  • Industry-standard output voltages – single outputs (3.3, 5, 5.2, 12, 15V), dual outputs (±5, ±12, ±15V), and triple outputs (5/±12, 5/±15V)