The separate excitation crossover oscillator used in four recirculating water lantern controller

Published:2011/4/14 2:40:00 Author:Ecco | Keyword: separate excitation rossover oscillator, four recirculating , water lantern , controller | From:SeekIC

The figure shows the separate excitation crossover oscillator used in four recirculating water lantern controller, the circuit only adopts two sets of contactrelay 4088 to control the four water lanterns. The working principle: the six NOT gate CD4069 in ICl and C1, C2, Rl, R2 form the separate excitation crossover oscillator circuit, it controls the transistor VTl, VT2 directly and drives relays Kl, K2 for the cross-phase output, that is the after Kl pulls, then K2 pulls, and Kl disconnects, K2 then disconnects and go in the cycle. (B) shows the lantern connection diagram.



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