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frequency to voltage conversion

frequency to voltage conversion

frequency to voltage conversion

(OP)
hello,
I am doing a freq-voltage conversion. But need to design a feedback element in the design loop(f/v converter)to control the frequency. Do anyone have suggestion?. Is there any realisation software to check a digital output(after converting 0-10v to required digital signal through DAC).

Thanks
Senthil

RE: frequency to voltage conversion

Hi Senthil,

  You need to explain your problem in greater detail.  It appears that you're using an FVC and an ADC to drive a digital meter (no micro-P involved), and that you wish to incorporate feedback in order to control the frequency you're measuring.  Is this correct?

RE: frequency to voltage conversion

(OP)
hello Ve7brz,
   Thanks for the reply. yes I need to control the frequency that I'm measuring. The freq is the output from the sensor interface connnected to a AC motor.What element must be incorporated in the feedback loop of thr F/V converter so that I can control the frequency.

Thanks
Senthil

RE: frequency to voltage conversion

Sorry Setnhil, but I'm still not clear on this.  If the frequency you're measuring is being sensed at a motor controller, is it not logical to vary the speed of the motor?  I'm assuming here that you're using a VFD.  If this is the case then controlling the motor RPM is quite simple.

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