ultrasonic generator. .. #2

Thread Starter

Dafe Technologie

Joined Oct 29, 2020
1
Hallo Guys,
we have two ultrasonic generator 20K,2000W
That we use for face mask machine for earloop welding
one of them is defect. ( No output )
But second one is okay
Can some one have experince
from where i can start fault finding
I have checked all Power Transistor and Diode
how i can go further fault finding
Generator are from China
waiting for you reply

Mod: Link to old Thread.
https://forum.allaboutcircuits.com/threads/ultrasonic-generator.103564/post-783025
 

Attachments

Last edited by a moderator:
Hi, I also have one machine broken all the power transistors blown and i can not see the code number to find equivalent, can you please tell me what is your power transistors code number
 
Top