A power sharing series power BJT array with isolated low voltage control for AC power control applications
Kularatna, N & Cho, P. (2006) A power sharing series power BJT array with isolated low voltage control for AC power control applications. Proceedings of the 32nd Annual Conference of the IEEE Industrial Electronics Society (CD). IEEE, Paris, France; 7-10 November, 2006 (pp.1715-1720). Washington, DC, USA: IEEE.
Permanent Research Commons link: https://hdl.handle.net/10289/3717
A technique for a continuously variable AC resistance using a series BJT array is presented. This array provides high power dissipation capability and uniform voltage and power distribution across the individual transistors. The array, controlled using a set of optoisolators to maintain the electrical isolation between the control circuits and the power stage, could be used as the basis to develop several useful techniques including a solid state AC regulator with comparable performance to the commonly used ferro-resonant systems; a linear AC electronic load suitable for testing UPS and other power conditioners; and, in other AC power control applications such as switching capacitors in AC resonant circuits.
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