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  1. z0d

    Reduce the effect of C as well as the Parameterization

    Hello fellow Electronites, I'll just dive straight in. Here's a picture of a circuit I'm simulating. 1ST ENQUIRY : So the blue line has a bounce (caused by the internal capacity of the conductivity sensor which is represented here by R7 & C2 ) that I'd like to eliminate. Any ideas? 2ND...
  2. z0d

    How to get Cs and Rs?

    Hello, I'd like to know how to get Cs and Rs.. Here I've substituted arbitrary values for both Rs And Cs; only R1 is set at 100Ω[ I varied this from 10Ω - 150Ω ] . So from ltspice I got an output like this But if I hook this circuit up to an osci [with Cs and Rs unknown] I get this. Any...
  3. z0d

    Programmable Resistor suggestions?

    Hello world, I'd like to create a sensor circuit say for either temp/pressure/conductivity [OR ALL THREE, SEPARATELY OFC] that incorporates a wheatstone bridge. In it, I'd like to have a programmable resistor that'll auto-compensate ( no manual adjustments necessary ) the changes in Rsensor...
  4. z0d

    Selection of Op Amps

    Hello, I'd like to get some perspective in this area. 2 main enquiries. 1st being, in a Relaxation Oscillator Circuit, what are the parameters of the Op Amp that define the output voltage? [eg. slew rate, GBW, R-to-R] So say for example I have a ±5V supply [not V- or V+] for the OpAmp and I'd...
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