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automatic motor starting circuit with Doppler-effect sensor

2016-09-01 15:59  
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automatic motor starting circuit with Doppler-effect sensor RD9481
automatic motor starting circuit with Doppler-effect sensor RD9481
The circuit is just as shown. It includes the Doppler -effect sensor control circuit, thyristor control circuit, music sound output circuit, large circuit and AC buck rectifier circuit and so on. Doppler-effect sensor IC RD9481 is the core device of the circuit, whose internal functional block circuit is also shown.