- #1

Thayalan

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hi guys.... i quiet new here...

just wondering ,.. how to measure a inductor....

TQ

just wondering ,.. how to measure a inductor....

TQ

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- Thread starter Thayalan
- Start date

- #1

Thayalan

- 2

- 0

hi guys.... i quiet new here...

just wondering ,.. how to measure a inductor....

TQ

just wondering ,.. how to measure a inductor....

TQ

- #2

berkeman

Mentor

- 63,216

- 14,133

If you don't have an LCR meter or other AC impedance-measuring device, you can do it youself with a signal generator, a resistor and an oscilloscope. Use the fact that you will get a 45 degree phase shift through the resistor-inductor series combination when the reactance of the inductor equals the value of the resistor. Are you familiar with how the reactance of the inductor varies with frequency?

- #3

Thayalan

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Can an Inductor reduce voltage

- #4

berkeman

Mentor

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Can an Inductor reduce voltage

Yes, in several ways. Here is some basic info on RLC circuits:

http://en.wikipedia.org/wiki/RLC_circuits

An inductor has a reactive impedance, which can interact with other impedances in a circuit and provide an AC voltage drop. A real inductor also has an associated DC resistance (DCR), which will act like any other resistor and provide a DC and AC voltage drop when a current flows through it. You usually will chose an inductor that has a small DCR compared to its reactive impedance at the frequencies of interest, though. Make sense?

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