ac measurement

  1. karol_design

    Frequency meter with MAX22707 - short circuit between digital GND and Neutral

    Hi all, I'm currently designing a low-cost domestic AC frequency meter. I decided to use Analog Device's MAX22707 (datasheet) precision zero crossing detector IC after obtaining promising results in the first stage of prototyping. Then, I designed a custom PCB which I'm currently testing...
  2. J

    Problems with impedance sensor measurement setup

    Dear community, I'm currently working on a setup for testing the accuracy of an impedance sensor. The sensor should be able to measure impedances in the range of 5kOhm-1MOhm. My testing setup consists of resistors and analog switches which are able to change the impedance between the two...