Peter Demchenko

Peter Demchenko

Peter Demchenko studied math at the University of Vilnius and has worked in software development.

Areas of interest of the author: Security Supply Power Measurement Analogue Design Amplifiers

Publications on RadioLocman by the author Peter Demchenko:

  1. Alarm monitors rotational speed of dc motor
    You can use the circuit in Figure 1 to monitor the rotating speed of a dc fan motor and sound...
    19-09-2022
  2. A simple ratiometric technique for measurement of very low resistances
    Maybe the most common applications for very-low-value resistors (i.e., milliohms (mΩ) and...
    11-08-2022
  3. Simple switchable filter
    Figure 1 shows how a Sallen-Key high pass filter (HPF), can be switched on/off using only one...
    14-07-2022
  4. Very Simple Amplifier with Phantom Power
    The circuit in Figure 1 is suited for inductive sources such as a dynamic microphone,...
    26-05-2022
  5. Improved Optocoupler Circuits Reduce Current Draw, Resist LED Aging
    It seems deceptively simple to establish galvanic isolation with the help of optocouplers between...
    17-03-2022
  6. Mains-driven zero-crossing detector uses only a few high-voltage parts
    You can get isolation with low power consumption using this simple circuit The circuit in this...
    17-04-2012