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Chicken male and female discriminator 1

2014-11-27 03:40  
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Chicken male and female discriminator 1
The chicken male and female discriminator circuit is composed of the audio detection circuit, active band-pass filter and LED display circuit, and it is shown in Figure 4-11. Audio detection circuit consists of piezoelectric ceramic BC and resistor Rl, R2. Active band-pass filter is composed of the operation integrated circuit IC and resistors R3-R5, capacitors Cl-C3, potentiometer RP. LED display circuit is composed of the capacitor C4, resistor R6 and light-emitting diode VL. Rl-R6 select the 1/8W precision metal film resistors(error is ± 1%). RP uses the small synthetic film variable resistor. Cl-C3 chooses the high-frequency ceramic capacitors, C4 uses the monolithic capacitor.