Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
Switching loses depends on diode and MOSFET static and dynamic characteristics, switching frequency and MOSFET driver characteristics. In most cases majority of losses on MOSFET happens during transition time betwen ON-OFF and OFF-ON state. Slower transition - bigger loses.
So it is not just simple formula.
For DC or low frequency it is enough to calculate only static characteristics. In that case formula is: Pdiode=Ud*Id and Pmosfet=Ron*I*I
Hi Madhu.b
Switching loss of a mosfet will given by :
1/T integral over Rdson*Id^2 dt from zero up to ton . and fo a diode : 1/T integral over Vdon*id^2 dt
Best Wishes
Goldsmith
Hi Madhu.b
Switching loss of a mosfet will given by :
1/T integral over Rdson*Id^2 dt from zero up to ton . and fo a diode : 1/T integral over Vdon*id^2 dt
Best Wishes
Goldsmith
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
