No voltage rating for inductors

Mar 05, 2022 Last reply: 4 years ago 26 Replies

My own home is illuminated almost entirely by low voltage lamps. Probably someone in the past fell for the notion that low voltage means low power consumption.

I replaced all the previous incandescent low voltage lamps with low voltage LEDs with the same fitting. When the caps wear out, which is within a few years, they start flashing. Next time it happens, I'll try removing the caps entirely. I'm not that hopeful, but you never know.

Sylvia.

On a sunny day (Mon, 07 Mar 2022 20:11:59 -0500) it happened legg snipped-for-privacy@nospam.magma.ca> wrote in snipped-for-privacy@4ax.com:

The Chinese LED lamps from ebay I have use a much smaller electrolytic capacitor that you could probably leave out: circuit:

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A look inside :
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current is limited by the 1 uF cap in series with the AC. The voltage on the eletrolytics is limited by the LEDs working as zeners.

simple... Some LEDs died Transients on the mains commom here.

You might be surprised. I recall being totally demoralized by an

0.08 transformer quote in 2008. If you stick to the right commodity materials, it's a completely different market, or perhaps the demoralization was intentional. I'm being paranoid here.

I visualize being paid to use parts, under corporate, tax or political circumstances, that I'd really rather not consider . . .

RL

If your inductor has a decent Q value (low resistance) then the DC voltage drop across the inductor is almost zero. Should be no DC arcing within the inductor itself.

Skittles

Yes. The issue related to short pulses.

Sylvia.

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