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2W AC/DC eliminates EMI input filter

Posted: 24 Jan 2007     Print Version  Bookmark and Share

Keywords:power management  AC/DC  power supply  Bias Power  EMI 

Bias Power's BPS-2 series AC/DCs

Bias Power's BPS-2 series of universal single- and dual-output 2W AC/DC supplies features a patented circuit design that effectively eliminates line EMI without need for an input filter, all in a package measuring under 1 inch³.

Suited for a variety of low-power consumer and standby mode "drop-in" applications requiring no additional external components, the supply, which is available in 8Vdc or 14Vdc single-output versions, and a 5 and 8 dual-output version, has a line/load regulation of ±one per cent, ripple of 250mV at 100Hz and nominal efficiency of 73 per cent. Input-to-output isolation is 3kVac. MTBF is greater than 200,000hrs at ±25°C. No-load power consumption of less than 30mW. The module is protected against short-circuits.

The BPS-2 series meets EN55022, FCC Part 15, and UL/CSA specifications. The BPS-2, measuring 1.09-by-1.35-by-0.57 inches and rated for operation over 0 to 70°C, is priced under Rs.271.92 ($6) in small OEM quantities.

- Vince Biancomano

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