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Re: My (Kinda) Flyback Driver



Original poster: "Malcolm Watts by way of Terry Fritz <twftesla-at-qwest-dot-net>" <m.j.watts-at-massey.ac.nz>

Hi Jon,

On 20 Jun 2002, at 16:28, Tesla list wrote:


> Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<Kidd6488-at-aol-dot-com>
> 
> Hello everyone, This is a flyback driver that I developed with the help of
> a friend. It uses two 555s, one for frequency, and one for duty cycle. It
> is still untested, and I have no clue about the values of the components.
> 
> hot-streamer-dot-com/jonathon/schematics/dual 555 timer flyback driver
circuit.jpg
> 
> tell me what you think,
> -------------------------
> Jonathon Reinhart
> hot-streamer-dot-com/jonathon

I don't know what the targeted peak primary current for the 
transformer is (it will happen at the longest duty cycle at the 
lowest frequency) but I'll bet that there won't be anything like 
enough base current to make the 2N3055 saturate.

Malcolm