- #1
Dextrine
- 102
- 7
Hello everyone, so I'm currently trying to find out how much power will be lost during reverse recovery of a MOSFET's diode. I'm using this paper for reference, https://www.fairchildsemi.com/application-notes/AN/AN-6005.pdf
the equation they end up with is
P= Qrr*Vin*Freq_sw
the problem is, for my application this gives an enormous number with the MOSFET I'm using. I have:
Qrr = 1.9uC
Vin = 380V
Freq_sw = 100,000Hz
which gives us a total power loss of 72.2W.
My question is, does this seem right? I can't believe that almost 100 watts will be lost in just the reverse recovery process...
Any help is greatly appreciated!
the equation they end up with is
P= Qrr*Vin*Freq_sw
the problem is, for my application this gives an enormous number with the MOSFET I'm using. I have:
Qrr = 1.9uC
Vin = 380V
Freq_sw = 100,000Hz
which gives us a total power loss of 72.2W.
My question is, does this seem right? I can't believe that almost 100 watts will be lost in just the reverse recovery process...
Any help is greatly appreciated!