Op-amp relay delay release circuit diagram

Published:2011/8/17 2:30:00 Author:Rebekka | Keyword: Op-amp relay , delay release | From:SeekIC

The figure shows the relay delay release circuit composed of operational amplifier circuit. When the power switch is turned on, the operational amplifier inverse input is added the voltage VTbetween the 4.7kΩ and 10 k Ω resistor, C1 has not charged, the same phase input is the low level. So operational amplifier output terminal is low level, the relays pulls in. At the same time, the power supply passes the 1.2 M Ω resistance and charge for the capacitor C1. Along with the increase of the capacitance C1, its charge voltage increases gradually. A period of time later the voltage will bein high level.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Basic_Circuit/Op_amp_relay_delay_release_circuit_diagram.html

Print this Page | Comments | Reading(3)