1 Switching losses = P = ½ Coss VDS2𝑓sw + QgVGS 𝑓sw
Indicative Vertical GaN™ switching losses = ½ ∙ 12pf ∙ 400V2 ∙ 1MHz + 16.9nC ∙ 3.3V ∙ 1MHz
Vertical GaN™ switching losses = 1.01577
Indicative Si MOSFET switching losses = ½ ∙ 33pf ∙ 400V2 ∙ 1MHz + 45nC ∙ 10V ∙ 1MHz
Si MOSFET switching losses = 3.09
P= switching loss; Coss = FET output capacitance; 𝑓sw = switching frequency; VDS = Voltage drain to source; Q = total gate charge; VGS = Voltage gate to source