The inductance controlled switch circuit (5)

Published:2011/7/2 22:48:00 Author:Borg | Keyword: inductance controlled, switch circuit | From:SeekIC

This is to introduce an inductance controlled switch circuit which is produced according to the Doppler effect, the circuit is effective when people is within 5m away from it. This circuit can be used in homes, factories, schools and other public spots as the corridor light control or the burglarproof alarm control. The inductance controlled switch circuit consists of the power supply circuit, the Doppler effect oscillator, voltage amplifier, single steady trigger, photo control circuit and control executing circuit and so on, see as the figure. By adjusting R2, the sensibility of the switch can be changed.



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