What the working principle of attached Inverter circuit for fluroscent lamp??

Discussion in 'General Electronics Chat' started by gauravpatravali, Sep 21, 2015.

  1. gauravpatravali

    Thread Starter New Member

    Sep 21, 2015
    How this circuit works?
  2. MikeML

    AAC Fanatic!

    Oct 2, 2009
    Blocking oscillator driving a step-up transformer. Hard to buy that transformer ready-made or to wind your own...
    That thing will kill radio reception within 1/4km due to the RFI it generates.
  3. ian field

    AAC Fanatic!

    Oct 27, 2012
    The 3055 is a very old transistor that's just about good enough for (almost) decent Hi Fi. Its frequency limitation should keep the RFI down to a dull roar.

    There are many later power transistors that can produce significant RFI in a circuit like that. Even TV horizontal output transistors with their low gain can be made to work in that kind of circuit, and are very capable of generating loads of RFI.

    Use a closed core ferrite for the inductor and keep all wiring as short as possible, and the results should be at least tolerable.
    Roderick Young likes this.