UcD like topology amp.

Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
Here is my first selfoscillated (UcD like) amp.
Later i'm gonna gonna post schematic & pcb layout with measurements result.

Driver: IRS20955
Mosfet: IRFI4212H-117P
 

Attachments

  • cakeamp_1.0.jpg
    cakeamp_1.0.jpg
    52.6 KB · Views: 8,832
Hello MaxS, power supply is 40V per rail, higher voltage possible with IRFI4020H-117P (or something like that). Output power can be easily calculated.
Project will be shared after all measurements be done.

Next 20kHz sine:

1st: input 0.2V/div*10us/div
2nd: output 10V/div*10uS/div

load: 6.5Ohm resistor.
 

Attachments

  • in_out_20khz.jpg
    in_out_20khz.jpg
    77.3 KB · Views: 5,430
Here is some thd measurements, nothing incredible or outstanding :D. Next pcb version is comming soon (or not soon).

Equipment: emu1212m, 24k lowpass filter (AES-17), load - good old 6.5Ohm resistor, PSU 250W torroid with 20000uF per 40V rail.

1st: 1W.
 

Attachments

  • 1w_6r5.png
    1w_6r5.png
    9.8 KB · Views: 5,468
Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.