The simple natural wind analog circuit

Published:2011/6/7 4:33:00 Author:Borg | Keyword: natural wind, analog circuit | From:SeekIC

See as Figure 12-4, the circuit includes a step-down rectifier current and a 555-based non-steady multi-resonate oscillator. The voltage after being rectified is VDD≈12V. 555,R1,RP1,D2,D3 and C3 consist a non-steady multi-resonate oscillator. By adjusting RP1, we can change the duty cycle of the output wave. The output period square wave controls the conduction and end of SCR by the current limited resistance R2, so the power supply of the fan gets power now and then, but it keeps rotating due to the inertia, and the result is like the natural wind.



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