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One of the inductive anti-theft alarm circuits using RD627 sensor
Source: InternetPublisher:同住地球村 Keywords: Sensor inductive anti-theft alarm circuit BSP Updated: 2021/08/17
RD627 is a single row 7-pin in-line plastic package Doppler effect sensor. It can convert the displacement signal of the moving object
into an electrical signal. It has the advantages of high sensitivity and wide monitoring range.
The circuit is shown in Figure 13-163. It consists of RD627 sensor Ai, LM358 operational amplifier Az (amplification),
KD5608 music integrated circuit Fan and power tube (VT).
Adjust the potentiometer RP to change the sensitivity of the device.
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