Inductor spark quenching time.

This phenomenon is also affected by the skin effect, where high frequency currents tend to flow on the surface of a conductor rather than through its entire cross-section.
  • #1
charlieb000
1
0
hi
i saw this page, http://sound.westhost.com/clocks/spark-q.html and he has tried various methods to quench the EMF spark from inductors. when a lot of current is pulled from the inductor during the quench the inductor magnetic field is prolonged - what is this delay called? this is the only information i have found on this to date.
i do have a feeling it occurs because of the skin effect - current, speed, and skin effect don't mix.

he tries nothing (800ns), a resistor that's 10x the coil resistance (10ms), and a 0.8v diode (40ms).
Charlie.
 
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  • #2
The delay you have described is known as the "inductance spike" or "ringing". This is caused by the inductor's magnetic field collapsing rapidly and producing an oscillating EMF (electromotive force) in the inductor. The resistor and diode both act to dampen this oscillation and absorb the energy, thus reducing the amount of time the EMF is present.
 

FAQ: Inductor spark quenching time.

What is inductor spark quenching time?

Inductor spark quenching time refers to the amount of time it takes for an inductor to dissipate the energy stored in its magnetic field and stop conducting electricity. This is an important factor in designing circuits to prevent sparks and damage to components.

Why is inductor spark quenching time important?

Inductor spark quenching time is important because it affects the performance and safety of electronic circuits. If the spark quenching time is too long, it can cause unwanted sparks and potentially damage the circuit or components. It is also important for proper functioning of devices such as ignition systems in cars.

How is inductor spark quenching time calculated?

The inductor spark quenching time can be calculated using the formula T = L/R, where T is the spark quenching time, L is the inductance of the inductor, and R is the resistance of the circuit. This formula assumes a simple circuit with only one inductor and one resistor.

What factors affect inductor spark quenching time?

Several factors can affect the inductor spark quenching time, including the inductance of the inductor, the resistance of the circuit, the type of material used in the inductor, and the rate at which the current is changing in the circuit.

How can inductor spark quenching time be reduced?

There are a few ways to reduce the inductor spark quenching time, including using a lower inductance inductor, increasing the resistance in the circuit, or using a material with a higher resistivity for the inductor. It is also important to design circuits with proper component placement and layout to minimize the potential for sparks.

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