Power supply for an electric precipitator

Details Power supply for an electric precipitator Power supply for an electric precipitator

H - Electricity

03

K

317/2.5

H03K 17/60 (2006.01) B03C 3/66 (2006.01)

Patent

CA 1094148

Abstract of the Disclosure An improved power supply for an electric precipitator which includes a d-c voltage source and a pulsed a-c voltage source coupled to the high- voltage electrodes of the precipitator. The improvement of the invention comprises the pulsed a-c voltage source comprising a high-voltage transformer including a primary winding and a secondary winding, the latter of which is coupled to the high-voltage electrodes of the precipitator. A d-c voltage source has one of the voltage terminals thereof coupled by means of a center tap to the primary winding of the transformer and the other of its voltage terminals coupled to a pair of thyristors and a pair of diodes connected to the ends of the primary winding of the transformer. The thyristors are coupled in anti-parallel relationship with the diodes and are adapted to be triggered in alternating fashion at the frequency of the voltage pulses desired to be generated.

299110

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