Christmas light mod

Discussion in 'The Projects Forum' started by PrinzEugen, Jan 7, 2016.

  1. PrinzEugen

    Thread Starter New Member

    Jan 24, 2012
    13
    1
    Hi, I need modification of cheap Christmas garland lights for my diorama

    it is going to be battery operated (2x CR2032 6v in series or even 1 battery if possible 3v) an I will use only four 3mm led, i need ic yt803a for different programs (it has 8 modes)

    This schematic of circuit is originally 220v ac powered. Which modification of circuit do I need for it to be operational for my diorama (probably modification of resistors and diode); I need minimum number of parts because the circuit is battery operated.

    Enclosed images show versions with 2 and 3 transistors but circuit is the same.

    Thank you in advance!
    Cheers!
     
  2. ErnieM

    AAC Fanatic!

    Apr 24, 2011
    7,394
    1,606
    Note to mods: the intent of the TS is to replace the HV source with batteries. This is NOT a LED off mains project. ;-)

    Prinz: I could not locate a data sheet for that device, but my feeling is it would be easier to start another way to light some lights from batteries.

    What exactly do you want the light to do in your project? Blink? Rotate in a pattern?

    Inquiring minds want to know.
     
  3. Dodgydave

    Distinguished Member

    Jun 22, 2012
    4,998
    745
    It wont work, the led is wired in reverse on the common connection, also its a forbidden topic leds to mains,transformerless psu.
     
  4. PrinzEugen

    Thread Starter New Member

    Jan 24, 2012
    13
    1
    hm, if i remove diode 1n4007 and capacitor, and recalculate resistors maybe it is possible to use battery on circuit?

    for diecast 1/200 airplane i need this lights https://www.youtube.com/watch?v=FMBZdIs6QLs at 1.50min
    two flickering red chasing led (one up first and one down after), and two non flickering yellow wing led
    condition is to use minimal wires and maybe one 3v cr2032 battery with magnet , throwie concept maybe ?
     
  5. ErnieM

    AAC Fanatic!

    Apr 24, 2011
    7,394
    1,606
    PrinzEugen come back. Your thread is now unlocked as long as you keep to using batteries.
     
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