The 555 controller circuit of auto-switch wind speed of 10 degrees

Published:2011/5/30 3:11:00 Author:Borg | Keyword: controller circuit, wind speed | From:SeekIC

See as Figure 12-2, the controller includes clock signal generator, counting, decoding and synchronous moving-phase circuit, and controllable silicon controller,etc. The voltage, after being stepped down and rectified, keeps between 9 to 10.5V, and it is the power supply of the controller. A non-steady multi-resonate oscillator is formed based on the 555, the frequency depends on R2,R3,RP1,RP2 and C3, and the frequency and duty cycle can be changed by adjusting RP1 and RP2. The low-frequency square wave generated by the circuit is used as the timing pulse, and the pulse is imposed on the CP terminal(14-pin).



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