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23
mk3d
7y

Rant. Always start debugging with the start point :p

We have a lamp with a dimmer.
A day, the dimmer make some noisy noise. Just down it and the lamp never bright again.

I open the dimmer, check all connection, bullshit what is wrong?
I decide to bypass the dimmer with a standard interrupter. But doesn’t work.
Finally.... I check the bulb 💡 and... burned...

Morality: if the bulb doesn’t work, check the bulb!
:p

question

start at the beginning

debug
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Comments
  • 3
    7y
    😂😂😂 ive done similar things with cars... ended up relpacing tons of parts just to find the real problem
  • 2
    7y
    If the dimmer was making noise maybe that's why the lamp died.
  • 0
    7y
    In my memory, dimmers are supposed to make noise when they are not on full power. This little humming noise... *humming*
  • 2
    7y
    Fun Fact, Dimmers make the buld Flash at a Really high frequency, its like ON OFF ON OFF ON OFF in mere Milliseconds...

    Its not like that it regulates voltage like many people assume...

    Source: School.
  • 0
    7y
    @Mizz141 Question tho. Does that shorten the bulb's life?
  • 0
    7y
    @Mizz141 Yes, that's called Pulse Width Modulation when using a DC component. For AC you must use Phase Angle Control, which turns on the SSR or TRIAC after certain amount of time when zero-cross is detected.
  • 1
    7y
    @World That depends if the bulb. LED lamps has a switching power supply, in that case the bulb will not be damaged. Cheap ones has a capacitor to limit the current. This could be a problem because the reactance it's affected by the waveform and if you are using Phase Angle Control, you are changing the current on the circuit. If the current rises too much for a period of time the LEDs in the bulb will be burned.
  • 0
    7y
    @LuxARTS dimmer making noise but since I’ve replaced the bulb, no more noise.
  • 1
    7y
    @LuxARTS thanks for the info. You learn something new every day.
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