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You are here: Home / Topics / resonance scanning circuit

resonance scanning circuit

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Electronics › Electronics › resonance scanning circuit

  • This topic has 3 replies, 2 voices, and was last updated 10 years, 8 months ago by Ashutosh Bhatt.
Viewing 4 posts - 1 through 4 (of 4 total)
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  • September 13, 2014 at 5:30 am #3259
    Ayman
    Participant

    i  have an LRC circuit i made change in frequency manually to get resonance in circuit…but when some conditions changed i make try another frequency….any body have an automatic resonance scanning circuit?

    September 14, 2014 at 11:20 am #12176
    Ashutosh Bhatt
    Participant

    there is a one type of DAC available called digital potentiometer. that changes its resistance value as per given digital input. so in your LRC resonance circuit you can use this potentiometer and change its value to change frequency

    September 25, 2014 at 5:55 pm #12229
    Ayman
    Participant

    please if you have a circuit how can i setup digital potentiometer?

     

    September 28, 2014 at 12:06 pm #12236
    Ashutosh Bhatt
    Participant

    digital potentiometers are available from Analog Electronics, TI, MAXIM etc 

    read datasheets and select one that you want

    mostly it has 4bit or 8bit or 12 bit digital input and 2 output terminals that gives variable resistance.

    so you can connect digital input with any micro controller and change resistance by changing digital input.

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