Leakage inductance causes a voltage spike across the primary MOSFET. The Usual Fix: Increase the voltage rating of the MOSFET (expensive) or add a big snubber (inefficient).
Most engineers believe that increasing the switching frequency makes a power supply smaller. That is true—until it isn't. Leakage inductance causes a voltage spike across the
: A deep study of controlling and measuring EMI, including the design and stability of input filters. Thermal Management Leakage inductance causes a voltage spike across the