I don't have pdf. Lay is here: https://forum.cxem.net/index.php?/t...td-ямаха-7000/&do=findComment&comment=3547198
thanks dj joul , i have seen your work , great build , nice job sir .I don't have pdf. Lay is here: https://forum.cxem.net/index.php?/topic/226328-усилитель-класса-td-ямаха-7000/&do=findComment&comment=3547198
did you ever try to load a 2ohm speaker , how was the heat ?
is a big heat sink heat required ( since the amp is 90% effecient) ?
I didn't test for 2 ohms. A radiator without blowing at such capacities cannot be used. Therefore, even from a small radiator, the cooler will blow away heat. But within reason. For protection and control, I used the following scheme: https://forum.cxem.net/index.php?/t...-мощного-умзч/&do=findComment&comment=3337751
He may have also called it Lightstar.
Attachments
Yamaha 7000D version 2022. The PWM tracker has been redesigned, self-power has been added as similar as Lab Gruppen, efficiency and reliability have been improved. SPL7 & Lay6 PCB file - see the attach.
Attachments
I will show you the current version of the printed circuit board, and I would also like to share the idea of increasing the efficiency of the tracker by eliminating "analog" tracking.

The points of comparison of potentials remain the same as in the original, only the power is modulated exclusively by the PWM tracker. Due to the Schmitt trigger in the optodriver, there is no transition of MOSfet keys to "analog" mode of operation.

The points of comparison of potentials remain the same as in the original, only the power is modulated exclusively by the PWM tracker. Due to the Schmitt trigger in the optodriver, there is no transition of MOSfet keys to "analog" mode of operation.
Attachments
Bună ziua, cred ca d3 nu este alimentat bine cu tensiune, d4 nu este alimentat deloc în schema.Schema este și fizică sau doar pe hârtie? Este foarte interesant și dacă funcționează este un pas mare spre clasa td.In .zip there is no wiring with changes.
Second page in S-Plan file have no release. Idea only. Both switch implementations (upper and lower rails) are possible.
Please see a current routing for OpAmps power rails (+\- 15V)
Please see a current routing for OpAmps power rails (+\- 15V)
https://www.diyaudio.com/community/threads/andrew-lebon.400145/post-73726702 ohms steven
good bye andrew lebon . we will miss you andrew 😢
- Home
- Amplifiers
- Solid State
- Class-AB meets Class-D: Yamaha's EEEngine Topology - where are this Diy Projects?