Timer circuit with Miller integrator

Published:2011/4/24 21:30:00 Author:Nicole | Keyword: timer, Miller integrator | From:SeekIC

Miller integrator's negative feedback is connected from transistor collector to its base by capacitance. It adopts composite pipe to improve the current amplification. After pressing key T, the capacitance is charged to power voltage. The time constant of this process is 33ms. Relay is no delay pull-in. When the key is cut off, Miller integrator starts to work.



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