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Calculation: H-Bridge Inverter - 3 Level (Unipolar SPWM)

Operating Conditions
Vin [V_DC]: Iout [A_AC RMS]: PF: N [No. of // FETs]:

PWM Parameters
Ar [V]: Ac [V]: fs [Hz]: fsw [kHz]:

Gate Driver Parameters
Vgdrive [V]: Rg_Ext [Ω]: Rpu [Ω]: Rpd [Ω]: Tdead [s]:

Circuit Parameters
Cin [F]: ESRin [Ω]:

Thermal Parameters
TA [°C]: RthCA [°C/W]: TempCoeff [for Rdson @TA]:

Calculated Parameters
Phi [PF Angle in °]: Ma [Modulation Index]: Ts [s]: Tsw [s]: D:
Vout [V_AC RMS]: Z [Ω]: R [Ω]: Lout [mH]: Sout [VA]:
Pout [W]:


Select Your Power Devices
Use parametric data from datasheet tables        Add measurement data from datasheet graphs

Select Mosfet Part [Q1]

Material Qualification
RDSON [Ohm] - Mounting
VDS [V] Package Area [mm2] -



   OR   

Note: Configuration, VDS [V], RDSon [mOhm] (Typ/Max), Vth_Max [V], Vgp_Typ [V]

Select Mosfet Part [Q2]

Material Qualification
RDSON [Ohm] - Mounting
VDS [V] Package Area [mm2] -



   OR   

Note: Configuration, VDS [V], RDSon [mOhm] (Typ/Max), Vth_Max [V], Vgp_Typ [V]

Select Mosfet Part [Q3]

Material Qualification
RDSON [Ohm] - Mounting
VDS [V] Package Area [mm2] -



   OR   

Note: Configuration, VDS [V], RDSon [mOhm] (Typ/Max), Vth_Max [V], Vgp_Typ [V]

Select Mosfet Part [Q4]

Material Qualification
RDSON [Ohm] - Mounting
VDS [V] Package Area [mm2] -



   OR   

Note: Configuration, VDS [V], RDSon [mOhm] (Typ/Max), Vth_Max [V], Vgp_Typ [V]


Converter Steady State Waveforms (assuming ideal switches)


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  • STEP-1
  • STEP-2
  • STEP-3
  • STEP-4



Loading.. Carrier, Reference Signal Vs. Time


Loading.. Vin, Vout, Iout Vs. Time
Vout_RMS = 82.555 A
Iout_RMS = 10.000 A


Loading.. Iin, ICin Vs. Time
Iin_RMS = 8.052 A
ICin_RMS = 6.029 A


Loading.. Q1_Parameters Vs. Time
Q1_VDS_RMS = 77.758 V
Q1_IDS_RMS = 7.075 A


Loading.. Q2_Parameters Vs. Time
Q2_VDS_RMS = 77.805 V
Q2_IDS_RMS = 7.069 A


Loading.. Q3_Parameters Vs. Time
Q3_VDS_RMS = 78.556 V
Q3_IDS_RMS = 7.002 A


Loading.. Q4_Parameters Vs. Time
Q4_VDS_RMS = 78.556 V
Q4_IDS_RMS = 7.000 A


Loading.. VGS Vs. Time


Loading.. VDS Vs. Time
Q1_VDS_RMS = 77.758 V
Q2_VDS_RMS = 77.805 V
Q3_VDS_RMS = 78.556 V
Q4_VDS_RMS = 78.556 V


Loading.. IDS Vs. Time
Q1_IDS_RMS = 7.075 A
Q2_IDS_RMS = 7.069 A
Q3_IDS_RMS = 7.002 A
Q4_IDS_RMS = 7.000 A


Loading.. PowerLoss Vs. Time