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AC-to-DC Converter Drives Amplifiers in IFF Systems

Thu, 04/15/2010 - 11:05am
BC Systems BC 751BC Systems introduced the BC-751, an 800 W AC-to-DC converter with eight outputs that is designed to provide power for solid-state RF amplifiers in airborne Identification Friend or Foe (IFF) applications.

The BC-751 accepts a three-phase 155 VAC, 400 Hz input with a power factor of at least 0.88 and maximum inrush current of less than 13 A, and has overall efficiency of 77%. It provides eight outputs: +3.3 VDC at 45 A and +5 VDC at 40 A with ripple and noise of less than 100 mVpp, -5 VDC at 600 mA with ripple and noise of less than 50 mVpp, +51 VDC at 10 A and +24 VDC at 1 A, and +12 VDC at 8 A, -12 VDC at 5 A, and +15 VDC at 3 A with ripple and noise of less than 120 mVpp.

The converter provides full protection for over-current, over-voltage, and over-temperature conditions, operates over a temperature range of -40o C to +85o C (-55o C to +85o C non-operating), and is designed for use with forced-air cooling. The BC-751 meets CE101 and CE 102 conducted emissions requirements per MIL-STD-461, and shock and vibration to IAW MIL-STD-810D. It measures 8.51 x 8.43 x 3.69 in. and weighs less than 12 lb.

The BC-751 is a custom AC-to-DC converter and many of its specifications as well as mounting and configuration can be modified by BC Systems to meet customer requirements.

About BC Systems

Founded in 1985, BC Systems, Inc., designs and manufactures high-performance switching and linear power supplies, power control products, and solid-state RF power amplifiers using state-of-the-art device technologies including gallium nitride (GaN) RF power transistors. The veteran-owned, ISO 9001:2008-certified company is headquartered in a modern 22,000 sq. ft. facility in Setauket, N.Y. Typical applications for the company’s products include radar, electronic warfare, electronic countermeasures, and satellite and terrestrial communications systems. BC Systems customers include BAE Systems, EADS, Lockheed Martin, Northrop Grumman, Raytheon, Telephonics, United Technologies, and the U.S. government.

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