So I have increaced my class AB amp biasing, Much more current and is idleing at 10watts.
However, NPN and pnp are not ballanced. One side drwas more current which is pnp and draws about 20-40ma more
My biasing setting is pretty much same as the honey badgers adjustible vr at
Q13.
http://www.diyaudio.com/forums/solid-state/211905-diyab-amp-honey-badger-build-thread.htm
I wounder how I can solve this and make both sides use same current. Or are there alternative ways I can biasing this into near class a biasing?
I have tired to use base bias to bias the transitors, with a 56K to bias my npn decive and zero resitor for pnp device the amp is still drawing more current on pnp side. I tried removing bias transitor for two diodes instead and use the good old base bias again, still same results pnp draws more current. Not only my amp meter shows up as more, but my temp meter shows that pnp is also 3-4c hotter
However, NPN and pnp are not ballanced. One side drwas more current which is pnp and draws about 20-40ma more
My biasing setting is pretty much same as the honey badgers adjustible vr at
Q13.
http://www.diyaudio.com/forums/solid-state/211905-diyab-amp-honey-badger-build-thread.htm
I wounder how I can solve this and make both sides use same current. Or are there alternative ways I can biasing this into near class a biasing?
I have tired to use base bias to bias the transitors, with a 56K to bias my npn decive and zero resitor for pnp device the amp is still drawing more current on pnp side. I tried removing bias transitor for two diodes instead and use the good old base bias again, still same results pnp draws more current. Not only my amp meter shows up as more, but my temp meter shows that pnp is also 3-4c hotter
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