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1kHz Wien Bridge Signal Generator Circuit Composed of LM358

2016-05-19 03:09  
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1kHz Wien Bridge Signal Generator Circuit Composed of LM358
As seen in the figure is 1kHz signal generator composed of components such as double operational amplifier LM358, Rl~R15, Cl~C5 and so on. The 1kHz weak signal generated from Wien Bridge(C2、C3、R4 and R6) is amplified by A1, and then is buffer amplified by operational amplifier A2 and A3. These two OPRAMs have the opposite output, making a double-end balanced output out of a single-end one.