Piezoelectric high level automatic control and alarming circuit

Published:2011/6/30 10:51:00 Author:John | Keyword: automatic control | From:SeekIC

The shown circuit consists of the piezoelectric material level sensor, relay control mechanical circuit, analog voice circuit and AC buck rectifier circuit. When the material level rises to the high material level, the circuit can be issued for a given analog sound and also cut off the power supply of the feeding equipment. Then the feeding process stops in order to ensure safe operation. IC1 is a piezoelectric material level sensing circuit, which consists of self-excited oscillator, rectifier circuit, voltage comparator circuit and output stage of the open circuit.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Signal_Processing/Noise_Generator/Piezoelectric_high_level_automatic_control_and_alarming_circuit.html

Print this Page | Comments | Reading(3)