ing the gate capacitances from the auxiliary voltage to turn the MOSFET ON,
and this discharging the capacitances to ground when turning the MOSFET
OFF. The equation for the gate drive loss is given in Equation 4.5.
(4.5)
There is not much that can be done about this loss except to select a MOSFET
with lower values for C
iss
and C
rss
and to possibly slightly lower the maximum
gate drive voltage.
Losses associated with the magnetic components
This area is very complicated for the average design engineer because of the
unusual nature of magnetic terminology. The losses described next are typically
presented in graphical form by the core manufacturers, which ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month, and much more.