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Retrofitted LEDs on tailight of my P150 Classic

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  • abhijeet080808
    replied
    Thanks for the appreciation!

    Leave a comment:

  • sajjt
    replied
    Originally posted by abhijeet080808 View Post
    Yeah, in case of brake light which is DC, you don't need diode and caps. Just resistors are enough. Refer to my diag in the 1st page.
    Abhi, Even after 7 months ur thread is still live, Congrats for posting such a simple but useful mod.

    Leave a comment:

  • abhijeet080808
    replied
    Originally posted by fayad555 View Post
    the park lights(in the tail lamp) are connected to the ac and brake lights to dc,,
    so only the park lights will have this problem. right?
    Yeah, in case of brake light which is DC, you don't need diode and caps. Just resistors are enough. Refer to my diag in the 1st page.

    Leave a comment:

  • fayad555
    replied
    Originally posted by abhijeet080808 View Post
    Actually depends on the LEDs and caps used. It can occur anywhere. But It is a problem only in case of brake light.

    And if the brake light is on DC from the battery without any caps, it will not occur.
    the park lights(in the tail lamp) are connected to the ac and brake lights to dc,,
    so only the park lights will have this problem. right?

    Leave a comment:

  • rahul9985
    replied
    Originally posted by abhijeet080808 View Post
    I would say a "Pi" filter is an overkill. Anyways, my LEDs never flickered with the cap! Why add an inductor to the mix, when a cap does the job satisfactorily.
    Hmm.. Right. Probably we dont need perfect filtering here.

    Originally posted by abhichotu.abhi View Post
    Thanks.
    Here, you are talking about a filter.(am i right)
    Yeah.. Capacitors and inductors and their combinations are used as filters in electronic circuits to block AC signal (by shorting it) and allow DC signal.
    Last edited by rahul9985; 12-09-2009, 01:52 PM. Reason: typo

    Leave a comment:

  • abhichotu.abhi
    replied
    Originally posted by abhijeet080808 View Post
    Caps in series with source will block DC and allow AC. Caps in parallel will short ckt AC and allow DC to pass through!

    In simple terms, it smooths AC signals.
    Thanks.
    Here, you are talking about a filter.(am i right)

    Leave a comment:

  • abhijeet080808
    replied
    Originally posted by rahul9985 View Post

    Exactly. Pulsed or Pulsating DC. Is a capacitor filter enough to smoothen all the ripples? Isnt "Pi" filter the best one?
    I would say a "Pi" filter is an overkill. Anyways, my LEDs never flickered with the cap! Why add an inductor to the mix, when a cap does the job satisfactorily.

    Leave a comment:

  • rahul9985
    replied
    Originally posted by abhijeet080808 View Post
    Thanks for the correction. IMO. the actual word is "Pulsed DC". Ideal DC is already smooth without any ripples!

    Exactly. Pulsed or Pulsating DC. Is a capacitor filter enough to smoothen all the ripples? Isnt "Pi" filter the best one?

    Leave a comment:

  • abhijeet080808
    replied
    Originally posted by rahul9985 View Post
    I think it should be smooths DC signals.
    Thanks for the correction. IMO. the actual word is "Pulsed DC". Ideal DC is already smooth without any ripples!

    Leave a comment:

  • rahul9985
    replied
    Originally posted by abhijeet080808 View Post
    Caps in series with source will block DC and allow AC. Caps in parallel will short ckt AC and allow DC to pass through!

    In simple terms, it smooths AC signals.
    I think it should be smooths DC signals.

    Leave a comment:

  • abhijeet080808
    replied
    Originally posted by abhichotu.abhi View Post
    Abhijeet why you used capacitor in a LED circuit.
    AFAIK, Capacitor blocks DC and allows AC to pass through.
    Caps in series with source will block DC and allow AC. Caps in parallel will short ckt AC and allow DC to pass through!

    In simple terms, it smooths AC signals.

    Leave a comment:

  • abhichotu.abhi
    replied
    Originally posted by abhijeet080808 View Post
    Actually depends on the LEDs and caps used. It can occur anywhere. But It is a problem only in case of brake light.

    And if the brake light is on DC from the battery without any caps, it will not occur.
    Abhijeet why you used capacitor in a LED circuit.
    AFAIK, Capacitor blocks DC and allows AC to pass through.

    Leave a comment:

  • abhijeet080808
    replied
    Actually depends on the LEDs and caps used. It can occur anywhere. But It is a problem only in case of brake light.

    And if the brake light is on DC from the battery without any caps, it will not occur.

    Leave a comment:

  • fayad555
    replied
    Originally posted by abhijeet080808 View Post
    If the cap value is too high, it may take some time. Just use a lower value capacitor as suitable.
    ok..
    only the park lights will have this prob and not the brake lights, right?

    Leave a comment:

  • abhijeet080808
    replied
    If the cap value is too high, it may take some time. Just use a lower value capacitor as suitable.

    Leave a comment:

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