Paper thickness detector circuit diagram

Published:2011/8/11 1:46:00 Author:Ecco | Keyword: Paper thickness detector | From:SeekIC

The paper thickness detector circuit is composed of the power supply circuit, infrared detection circuit and control implementation circuit, and it is shown as the chart. Power supply circuit consists of the power transformer T, rectifier diodes VD1 ~ VD4, filter capacitors C1 ~ C3 and three-terminal regulator IC2 and so on. Infrared detection circuit consists of the infrared emitting diode VL1, infrared receiver diode VL2, operational amplifier integrated circuit IC1 and the peripheral components. Control implementation circuit consists of the transistors V1, V2 and relays K1, K2 and so on. R1 ~ R6 use the 1/4W carbon film resistors or metal film resistors.



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