Table 7 Loss calculation model of main components.

\({P_{{\text{con}}}}=I_{{{\text{ds}}rms}}^{2}{R_{{\text{ds}}}}\)

R_ds: on-resistance

\({P_{{\text{sw}}}}=0.5{V_{{\text{ds}}}}{I_{{\text{ds}}}}{f_s}({t_{{\text{on}}}}+{t_{{\text{off}}}})\)

t_on/t_off: switching times

\({P_{\operatorname{coss} }}=0.5V_{{{\text{ds}}}}^{{\text{2}}}{C_{{\text{oss}}}}{f_s}\)

C_oss: output capacitor

\({P_{{\text{drive}}}}={V_{gs}}{Q_{gs}}{f_s}\)

V_gs/Q_gs: gate voltage/charge

\({P_{L{\text{f}}}}=I_{{L{\text{frms}}}}^{2}{R_{L{\text{f}}}}\)

R_Lf: ESR

\({P_{{\text{rest}}}}=I_{{{\text{Crms}}}}^{2}{R_{\text{C}}}+I_{{{\text{Trms}}}}^{2}{R_{\text{T}}}\)

R_C/R_T: ESR