Vicor is aiming at VPX conduction-cooled chassis in avionics and ships with a 1kW multi-output PSU that runs from a 28V dc rail.

Designed for 6U OpenVPX systems, and called VITA-62, it is a VITA 62 compliant power supply running from 18-42Vin, while producing 3.3V (0-30A), 5V (0-32A), 12V (0-70A), 12V (1A), -12V (1A) – the 5V rail and high-power 12V rail have remote sensing.

“Customers requiring different output voltages or power levels can request a customised power supply to meet their own specifications,” according to the company.

Vicor-VITA62-6U-blockProtections include: Input voltage reverse polarity, over-current, over-voltage and over-temperature.

Operation is over –40 to 85°C and the units do not contain aluminium electrolytic capacitors. Size is approx 170 x 230 x 24mm

Control is over I2C and one to four units can be paralleled to increase 5V and 12V output current – sharing is described as “proprietary wireless”, in the data sheet “conventional current sharing pins are eliminated”.

With caveats (see data sheet) compliance is to:

• MIL-STD-704F
• MIL-STD-461G
• MIL-STD-810G
• MIL-STD-1275E
• RTCA/DO-160G

According to Vicor, the PSU was developed using its own ChiP power modules.