Murata Bulk Power DC-DC Supply Suits Distributed Power Systems

Murata Power Solutions announced the availability of the D1U4CS front-end 2,100W dc-dc power supply. This highly efficient unit, typically 93% efficient at half load power, is designed to deliver bulk power to 54Vdc distributed power applications. With a floating output, the design engineer can wire the power supply in a +54V configuration for data centre environment or -54V configuration for telco central office environment. A 5Vdc, 0.75A standby output is also provided. Typical applications include use in telephone exchanges in-line from the battery-bank providing a highly reliable and regulated supply.

Capable of operating over a wide input range, from -40 to -72Vdc, this compact 1U unit measures 344.4 x 101.6 x 40.6 mm (13.5 x 4 x 1.6 inches) and has an extremely high power density of 24.3W per cubic inch. Two internal fans provide forced air cooling.

The D1U4CS is N+1 redundant, hot-swappable and capable of droop current sharing. It has a comprehensive set of power control, logic signaling and operational status functions. The supply can automatically recover from over current and over temperature faults. These faults and all other signals are available though the I²C / PMBus interface together with status information by front panel LEDs.