Transformer Voltage Converter

Discussion in 'General Electronics Chat' started by Razor Concepts, Dec 12, 2009.

  1. Razor Concepts

    Thread Starter Active Member

    Oct 7, 2008
    212
    1
    Trying to make the circuit attached work.

    I am using a 200ohm resistor instead of 350ohm. 2n2222 transistor, 4007 diodes.

    Instead of the fluorescent I tried it with a string of LED christmas lights. No-go.

    Measuring on a multimeter, I get varying readings, peak of about 49v AC.

    Is there a reason why the voltage is not getting high enough?
     
  2. bertus

    Administrator

    Apr 5, 2008
    15,648
    2,346
    Hello,

    The fluorescent works on high voltage and low current.
    The leds work on a much lower voltage and will draw much more current.
    The small transformer probably will not manage that.

    Greetings,
    Bertus
     
  3. Audioguru

    New Member

    Dec 20, 2007
    9,411
    896
    I think your 1.5v battrey voltage drops to 1V or less when you overload the circuit with the Christmas lights. The little transistor should blow up instead.
     
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