DC-DC converter for industrial and military systems

7 March 2012 Power Electronics / Power Management

Vicor debuted its new Picor Cool-Power PI3106 isolated DC-DC converter, delivering 50 W of output power (12 V output at 4,2 A) in a tightly integrated 22 x 16,5 x 6,7 mm surface mount package offering power density of 20,4 W/cm³. The device combines isolation, voltage transformation and output regulation in a form factor less than half the size of a conventional isolated 1/16th brick and available in a wide 28 V military input voltage range (16 V to 50 V) or narrow 24 V industrial input range (18 V to 36 V).

The PI3106 utilises advanced zero voltage switching (ZVS) architecture and control, state-of-the-art planar magnetics and ultra-high density power system in package (PSiP) packaging. The combination of these technologies enables a complete isolated DC-DC power solution within a high-density, encapsulated, IC-like surface mount package. This facilitates PCB layout optimisation, offers the designer the opportunity to employ a variety of cooling techniques and protects the circuit components against mechanical and ambient factors, thus improving reliability.

The converter reduces board area consumption by an estimated 50% compared to conventional designs, allowing for power conversion closer to the point of load, thereby enabling smaller form factors and higher efficiencies. The high switching frequency (900 kHz) reduces input filter and output capacitance requirements, further minimising space and cost constraints.

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