In message <CAK-wn_6=bn+xLOd_mBp9qofHnHq+39rP=WLhM8V0BH5DLuJ+XA@...>, dated Mon, 26 May 2014, "Sam Jesse revrvr@... [LTspice]" <LTspice@...> writes:
In the example of Files/Temp/ transformer.asc
L1, L2 and L3. how can I build this home transformer project to "play" with?i.e. how to wind it to match the LTspice design?
That is a VERY big question, and nothing to do with simulation. The inductance values, with 1000:1 ratio, you show are hardly feasible for a practical transformer (except a toroid with a single-turn primary - that *might* work). K = 0.9 is difficult to achieve with a transformer having a magnetic core. 0.98 would be more practicable, and it hardly affects the simulation.
Is the transformer supposed to work with the pulse input of 1.5 V and no load on the output other than the capacitor? The voltage applied and the current output determine the core size and winding area you need. It looks as though a ferrite toroid is your best choice but you need quite a big one to get 100 mH twice. I doubt you can get enough design guidance on the web; you really need a very good textbook.
--
OOO - Own Opinions Only. With best wishes. See www.jmwa.demon.co.uk
Nondum ex silvis sumus
John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK
