Drasius said:This is only concept.
Any coments please...
It should work. But not necessary in class A. If You set small bias with the lower part, it can work in class AB as well.
sajti
I wouldn't use this in class AB with feedback
think about phase shift of a trafo- may cause hard to avoid oscilations
in class A it is nice.. something like susan-parker's
regards
think about phase shift of a trafo- may cause hard to avoid oscilations
in class A it is nice.. something like susan-parker's
regards
Drasius said:Right, but with class A (idle current 1.3A) much better results.
What spectrum of simulation?.. 🙂
With this bias it will be class A, up to 25W/8ohms.
The spectrum means low distortion, but the large 5th harmonic looks strange for me...
Feedback can helps to reduce the distortion, but with interstage transformer You can't use more the 14-16dB without instability
sajti
I have built a pair of power followers in the past that were designed by that guy in Italy.... can't rememhber his name. They sounded fine and were a good exercise in amp building but overall a waste of time. I would reccomend building one of the Aleph projects instead of wasting your time and money.
Mark
Mark
sajti said:
The spectrum means low distortion, but the large 5th harmonic looks strange for me...
0.0008% is strange?....
Drasius said:
0.0008% is strange?....
Not too much 😀 I just compared to the others....
sajti
Hi,so new struction of the circuit!
but the driver(transformer) is hard to DIY or Buy somewhere...
if modify the circuit...same as JLH's output stage...
I think many problems will not surv.
😎
but the driver(transformer) is hard to DIY or Buy somewhere...
if modify the circuit...same as JLH's output stage...
I think many problems will not surv.
😎
Thanks to negative feedback, transformer in this circut is no so critical.Did have configuration 1:1:1.
Buy somewhere...http://www.jensen-transformers.com/datashts/123blcf1.pdf
I will try to build amp with circut below
Buy somewhere...http://www.jensen-transformers.com/datashts/123blcf1.pdf
I will try to build amp with circut below
Attachments
None goble feedback!?
have you do any anasisly on your PC?
THD=?,but perhapse..a lettle distration not means it sounds bad..
haha,have fun!😀
have you do any anasisly on your PC?
THD=?,but perhapse..a lettle distration not means it sounds bad..
haha,have fun!😀
Nasty little MOSFET-JLH amp immitations you got there.. cleary not taken any note of the discussion that went on in the JLH-thread.... beware guys this one has nasty cross-conduction problems.... take some time to read my dear four-footed-friend.. me thinks Drasius' circuit is kinda nice....
Drasius said:Spectrum of simulation, output power 15W, sin 1kHz.
1m=0.001%.....
haha,perfeat result!
wish you build it out and enjoy in it..
🙂
- Status
- Not open for further replies.
- Home
- Amplifiers
- Solid State
- Class A power follower