Explain in layman's terms hysteresis

AI Thread Summary
Hysteresis refers to the lag between the input and output in a system, particularly in magnetic materials, where energy is lost as heat during magnetization and demagnetization cycles. This phenomenon contributes to heat generation in electromagnets, especially in applications like tattoo machines and doorbell circuits that operate at high frequencies. The rapid magnetization and demagnetization of coils can lead to significant energy loss, resulting in unwanted heat. Minimizing hysteresis loss involves selecting materials with lower hysteresis loops and optimizing circuit design. Understanding these principles is crucial for improving efficiency and reducing heat in electromagnetic applications.
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could someone explain in layman's terms hysteresis, and why this would contribute to heat in electromagnets
 
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That is one awesome link, Jim. Thanks! :cool:
 
I think I understand hysteresis, This is in relation to a tatoo machine, I posted a question which no one responded too earlier. I figured hysteresis would cause somebody to give some info. any way this is a "doorbell" circuit two coils a switch/contact with a capacitor. or an oscillating? circuit the coils magnetize and demagnetize rapidly 100 to 150 times per second. heat is my problem and how to minimize it.
 
Very basic question. Consider a 3-terminal device with terminals say A,B,C. Kirchhoff Current Law (KCL) and Kirchhoff Voltage Law (KVL) establish two relationships between the 3 currents entering the terminals and the 3 terminal's voltage pairs respectively. So we have 2 equations in 6 unknowns. To proceed further we need two more (independent) equations in order to solve the circuit the 3-terminal device is connected to (basically one treats such a device as an unbalanced two-port...
suppose you have two capacitors with a 0.1 Farad value and 12 VDC rating. label these as A and B. label the terminals of each as 1 and 2. you also have a voltmeter with a 40 volt linear range for DC. you also have a 9 volt DC power supply fed by mains. you charge each capacitor to 9 volts with terminal 1 being - (negative) and terminal 2 being + (positive). you connect the voltmeter to terminal A2 and to terminal B1. does it read any voltage? can - of one capacitor discharge + of the...
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