RFQ/BOM 0 Sign In / Register

Select Your Location

user image

Regarding the elimination of spikes at the moment when the mos tube is turned on, what can you do to improve it?

Hardware design
January 13, 2021 by Jenson 1413

The circuit diagram is as follows:

The switching power supply chip viper22a DS pole voltage waveform is as follows:

Do you have any good ways to eliminate the spikes at the moment when the mos tube is turned on? Thank you!

All Comments

user image

Terry Posted on January 13, 2021

The problem with the oscilloscope?

0
user image

Elsa Posted on January 13, 2021

You can parallel RC absorption on the secondary rectifier tube to see the effect. In addition, according to the ringing, the design of the transformer seems to be problematic. Adjust the primary turns and inductance to see.

0
user image

Edith Posted on January 13, 2021

There are many ways to eliminate DS spikes, reduce the turns ratio, strengthen the absorption of the secondary diode, and use a slow tube for the primary RCD absorption loop diode.

0

Write an answer

You need to log in to reply. Sign In | Register