33 lines
1.1 KiB
Matlab
33 lines
1.1 KiB
Matlab
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%https://www.infineon.com/dgdl/Infineon-IPA95R130PFD7-DataSheet-v02_01-EN.pdf?fileId=8ac78c8c81ae03fc0181f72507e62e68
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fs = 100e3; %Switching frequency [Hz]
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n = 12;
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V_in_max = 600; %Maximum input voltage [V]
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Ip_rms = 3; %Primary RMS Current [A]
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R_DS = 0.13; %Drain-Source-Resistance [Ohm]
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C_oss = 53e-12; %Output Capacitance [F]
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V_DS_meas = 400; %Drain-Source-Voltage during measurement of Coss [V]
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C_oss_avg = C_oss*sqrt(V_DS_meas/V_in_max); %Average output capacitance [F]
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Q_g = 141e-9; %Total gate charge [nC]
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V_GS = 10; %Applied Gate Voltage [V]
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%Calculate losses
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P_cond = power(Ip_rms,2)*R_DS; %Conduction Losses [W]
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P_cap = Q_g*V_GS*fs; %Capacitive switching losses [W]
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P_loss = 4*(P_cond+P_cap); %Losses of the full bridge [W]
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%Calculate Shim Inductor
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Ipp = 4.4; %Peak to Peak primary Current at 300W and 600V [A]
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dI_L = 5.1; %Output Inductor ripple [A]
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Ls_min = 2*C_oss_avg*power(V_in_max/((Ipp-dI_L/n)/2),2); %Necessary leakage inductance [H]
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