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snowflake View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote snowflake Quote  Post ReplyReply Direct Link To This Post Posted: 16 June 2016 at 2:53pm
think I need to start modelling rather than thinking about theory. Any idea how to model an autoformer in akabak? is it simply equivalent to transformer with the secondary impedance set to zero?
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odc04r View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote odc04r Quote  Post ReplyReply Direct Link To This Post Posted: 16 June 2016 at 3:29pm
Can you not just model it as a normal transformer with common connection between primary and secondary ground?

You could also model your crossover circuits in LTSpice outside of Akabak and compare the responses, that's my usual route.
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rodneps View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote rodneps Quote  Post ReplyReply Direct Link To This Post Posted: 17 June 2016 at 10:20am
You set the secondary to be the same as the original inductor value, now the auto tap and output.
Primary is set to the whole inductance , ground to winding finish.
If an air core the coupling factor needs to be taken into account.
Here is a screen shot of one I am working on at the moment.

https://drive.google.com/file/d/0By8crwHIJu1uczdXMDhpOUpYdWc/view?usp=sharing

Derek
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