bootstrap capacitor calculator

[cann]

http://www.silabs.com/support/Pages/bootstrap-calculator.aspx

Parameters to Enter

Number of MOSFETS or IGBTs in parallel (#)
System modulation frequency (Hz)
Maximum and minimum duty cycle (%)
Driver output-side quiescent current from driver data sheet (mA)
Driver output side voltage (V)
Percent bootstrap cap ripple voltage as a percentage of VDDO (%)


Parameters Returned

Bootstrap capacitor total gate charge (nC)
Bootstrap capacitor value (nF)
Maximum bootstrap capacitor recharge current at maximum duty cycle (mA)