Power factor corrected power supplies

17 October 2007 Power Electronics / Power Management

Designed to meet the space and performance needs in low- to moderate-power systems and instrumentation applications, Astrodyne's PMK-150 line of high density open frame switching power supplies provides output power of 150 W with active power factor correction. All models accept universal input from 85 V to 265 V a.c. and four models are available that provide single outputs from 5 V to 24 V d.c. The PMK-150 is fully approved to EN60950 safety specifications.

Utilising high density SMT construction, The PMK-150 devices offer case sizes that are said to be up to 30% smaller than products with similar output power and provide power densities of up to 0,244 W/cubic centimetre. All models in the PMK-150 range feature an integral power-good LED indicator and output adjustment potentiometer and will operate over the ambient temperature range of -10 to +50°C without forced cooling or output power derating. All models contain over-voltage, short circuit protection, and integral input line filtering. Dimensions are 14 cm x 7,6 cm x 3,8 cm (L x W x H) and all models feature screw terminal input/output connections.

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