The microwave probe delay lighting circuit diagram with RD627

Published:2012/8/16 21:25:00 Author:Ecco | Keyword: microwave , probe , delay lighting | From:SeekIC

The microwave probe delay lighting circuit diagram with RD627 concistsofIC1, IC2 , and Triac VTH, and it is shown as the figure. The internal circuit of IC1 is composed of oscillator , emission, amplifier, detector, limiter, delay and regulator circuits, and it has few external components, and loop antenna TX can be usedforemission and receiving. IC2 is usedas amplifier and comparator. After the power is connected, antenna TX will launch the microwave signal out.When nobody comes intothe effective detection area ( an area of ​​approximately 100m2), IC1's pin 6 outputs 6V, and IC2's pin 1 and pin 7 output low level, then diodes VD1 and VD2 are closed, the thyristor VTH is cut off because gate pole has no trigger voltage, and light EL is not bright.



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