Class-AB meets Class-D: Yamaha's EEEngine Topology - where are this Diy Projects?

[andrewlebon]

HD CLASS XP7000

Time to make stereo HD class YAMAHA XP7000

warm regards
Andrew

 

[khalsa]

Nice work mr.andrew.

 

[andrewlebon]

Hi Khalsa
greetings i like the sound of yamaha hd class after many failures i finally made it
designed new output and driver stage pcb now the hard part to wind torridal
transformer 5000VA dc rail supply is 150 DC+/- my old weak fingers i pity them
warm regards
Andrew

 

[andrewlebon]

TN5 HD DRIVE

TN5 HD class also to be tried

 

[andrewlebon]

https://www.youtube.com/watch?v=6FI1rjJ0nkk&feature=youtu.be

 

[andrewlebon]

TN5 HD DRIVE

TN5 step and output board it took a long time but i am

 

[andrewlebon]

TN5 HD DRIVE

TN5 HD class drive tested

 

[andrewlebon]

https://www.facebook.com/video.php?...479547&type=2&theater&notif_t=video_processed

 

[andrewlebon]

TN5 HD DRIVE

SECOND module completed and tested

 

[andrewlebon]

TN5 HD DRIVE

Final HD class module over

 

[nix]

SECOND module completed and tested

Hi andrewlebon im interested with your works would you mind to send me files of this pcb components layout to jackyandrino<at>gmail<dot>com Im gonna try this amp. Thanks in advance.

regards,

nix

 

[andrewlebon]

HD CLASS T5N

Both channels completed hand wound torridal transformer

 

[andrewlebon]

TN5 HD AMPLIFIER

Hello
greetings finally both channels completed and tested and being packed
in home made amplifier chassis and torridal transformer wound at home
only input limiter soft start and dc protection pcbs to be fitted

warm regards
Andrew

 

[waso]

Good work!

 

[andrewlebon]

waso never give up eventually it will WORK

 

[andrewlebon]

Hello Waso
greetings making your qsc limiter pcb design it works good i have tested it
going to put in this amp

warm regards
Andrew

 

[andrewlebon]

HD CLASS T5N

first image qsc LM137000 limiter almost complete
second image short circuit dc protector thermal fan control and overtemprature
shutdown

 

[andrewlebon]

TN5 HD AMPLIFIER

limiter and softstart pcb fitted dc protection pcb left

 

[andrewlebon]

TN5 HD AMPLIFIER

Moving Faster

 

[stewin]

congratulations sir andrew cool lovely work .

what is the minimum impedance the amp can handle safely, when driving the amp at +/-180vlts dc ??