12V PA 200W TRANSFORMER

[john]

Hi guys

I am designing to 200w PA amplifier and it have to run off from a 12v car
battery. I planning to use a pair of power mosfets to drive a step-up
transformer in a push -pull configuration. The speaker is 11 ohm and the
audio frequency response is about 300hz to 5khz . My problem is designing
the transformer, I don't have much knowledge in transformer design and I am
wonder anyone could point me to web sites or have a calculation example they
can lighten me



Thanks



mark

marcoz AT netexpressway.com replace AT with @

to email me

 

[Ban]

john wrote:
|| Hi guys
||
|| I am designing to 200w PA amplifier and it have to run off from a
|| 12v car battery. I planning to use a pair of power mosfets to drive
|| a step-up transformer in a push -pull configuration. The speaker is
|| 11 ohm and the audio frequency response is about 300hz to 5khz . My
|| problem is designing the transformer, I don't have much knowledge in
|| transformer design and I am wonder anyone could point me to web
|| sites or have a calculation example they can lighten me
||

I know of this really good site, but it is in German. Not too difficult to
translate though. Calculates the complete transformer.
http://henry.fbe.fh-darmstadt.de/smps/smps.asp#Edw

 

[Marc H.Popek]

wow sprecken zee deutsch... wish i could remember more of it.... ice
schutcken... ein beer bitte. tish twie...ein bahn strasen... jaeger
schnitzel mit gemuse. wiess wine... maybe I remember all the food groups


Herr Direcktor Marc