Discharge time relay circuit


Posted on Dec 11, 2010

Discharge time relay circuit The timer field effect tube, and therefore have a high timing accuracy, timing and so long. When the R3-IOOOMfl, C 200VF when a delay time of 8h. P


Discharge time relay circuit
Click here to download the full size of the above Circuit.

ress the button SB, transistor VTi conduction, VT3 conduction, the relay pull KA, delay start. When the capacitor C discharges to a certain value, VT2 is turned on from off, VT3 deadline, KA released. Delay time is determined by R3, RP and C.




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