2nd gen AC/DC power supplies provide up to 90% efficiency

10th September 2014

CUI Inc

Nat Bowers

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Expanding the company's VOF series of compact, open frame AC/DC power supplies, CUI has introduced 100, 120 and 150W models. Compared to its previous offering, the single-output supplies have been designed to provide higher efficiencies, improved no-load performance, and higher-power.

The power supplies offer global compatibility for OEM manufacturers with a wide universal input voltage of 90-277VAC at 47-63Hz input. Suited for use in a wide range of ITE, industrial, and consumer electronics applications, the 100, 120 and 150W versions offer output voltage options of 5, 12, 15, 24, 36 and 48VDC. They also include output voltage adjustability of +/-5% via An onboard potentiometer can be used to adjust output voltage by ±5%. The VOF-150 series is also designed with active power factor correction.

Operating over a temperature range from -20 to +60°C, the 100W model measures 101.6x50.75x33.6mm (4.00x2.00x1.32"), while the 120 and 150W VOF models measure 127x76.2x33.1mm (5.00x3.00x1.32"). The VOF-100 is rated for operation at 100% load with 6.7CFM of forced air cooling from -20 to 50°C, derating to 50% load at 60°C. The VOF-120 and VOF-150 models operate at 100% load under convection cooling from -20 to 40°C, also derating to 50% load at 60°C.

The VOF series provides efficiencies of up to 90% and no-load power consumption as low as 0.25W. The power supplies feature over voltage, over current and short circuit protection and primary to secondary isolation voltage of 3kVAC. All models offer UL/cUL and TUV 60950-1 safety certifications and are qualified for the CE mark, EN 55022 Class B and FCC Class B EMI standards.

The VOF series AC/DC power supplies are available now priced from $36.28 each in 100 unit quantities.