electromagentic

  1. C

    What is the function of high current induction heater circuit elements?

    Note: English translation is below. Herkese merhaba, Bu devrede komponentin görevleri nelerdir? Örneğin: - Dirençler ne işe yarar? - Bu devrede diyotlar ne işe yarar? - Toroid sargılarının sayısı artarsa ne olur? - Birden fazla kondansatör paralel bağlanırsa ne olur? - Devrenin verimli...
  2. H

    Placement of Termination Resistor

    Dear Team, For series termination, we need to place the termination resistor close to the driver and for parallel termination, we need to place the resistor close to the receiver. what will happen if did not place it close to the driver/receiver and why? Regards Hari
  3. pralayp

    Microwave detection circuit verification

    Dear all, I want to develop a circuitry which is able to detect electromagnetic waves(radio-wave , micro-wave). This circuit will just act as a tamper detect and not physically measure/compute the radiation. I have designed the circuit using toroid ring and few Schottky diodes. The calculation...
  4. skyline977

    Why the voltage is positive while the current is decreasing

    Hi all, The question is: The solution is: The formula used is: Why did he change the formula by putting an additional negative sign in front of the formula? Why does the voltage increase as the current decrease? The question and answer are from: FE Exam Review: Electrical and Computer...
  5. Droneman

    How to prevent back emf when forcing a motor

    Good day everyone, I am designing a sort of winch system, where the user can pull the package freely, and once they are done, the winch reels back up the string around a drum. I would like to use a DC motor connected to the drum to reel back the string. This means that when the user is pulling...
  6. 8

    Purpose of a rectifier in a positive oscillating circuit

    Hello, I found a circuit (transmitter) design that would create an oscillating magnetic field. Another circuit (receiver) would pick the induced voltage up and amplify it. Now as I understand it, the oscillating part has only positive voltage. But in the receiver part they use a recitfier. Why...
  7. R

    I have a monitor with this pcb which has these L+l-r+r- can I directly connect two little speakers with it ????even one would work

  8. S

    Frequency control in a circuit

    Hello! My goal is to power an electromagnetic coil. In this circuit I want to use sine waves at a low Hz (below 10 Hz). Im using a signal generator but it does not have enough power for my coil. How can I hook up my signal generator to a AC power supply to regulate the frequency? Or should I try...
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