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The combination sine wave circuit of 400Hz LED and operation

2014-12-23 09:27  
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The combination sine wave circuit of 400Hz LED and operational amplifier
In dimensional calculation bridge circuit, LED with norlinear resistor usage and operational amplifier are used in combination, and the power supply voltage is 15V. If R,C values change, this circuit can work at other frequency. R can adjust output width and its range is 10~20Vp-p, and the circuit total harmonic distortion is 1%.


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