Reflective Object Sensor- Infra Red Optical Proximity Switch Using PLL LM567
Reflective Object Sensor- Optical Proximity Switch Using PLL LM567 The simple circuit is based on LM567 PLL IC and optical sensor QRD1114 from Fairchild semiconductor. The QRD11114 reflective sensor consists of an infrared emitting diode and an NPN silicon photo Darlington mounted side by side in a black plastic housing. The on-axis radiation of the emitter and the on-axis response
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