The demand for smaller, lighter, and more efficient AC/DC USB power delivery (PD) chargers is always a challenge for power-supply design engineers. Below 100 W, the quasi-resonant flyback is still the ...
Figure 2: Power FET compact models are making the transition from a 2-terminal to a 3-terminal resistor model equivalent network to model the drain drift-region. The r3_cmc (henceforth known as ‘R3’) ...