Fabri fibra guerra e pace download mega4/22/2023 Yes, there are formulaeavailable for calculating the capacitance. The higher the dutycycle, the higher the required capacitance for C1. Thus, the lowerthe frequency, the higher the required capacitance for C1. C1 must also not be too large that charging is tooslow and the voltage level does not rise sufficiently to keep the MOSFET on.The higher the on time, the higher the required capacitance. A large enoughcapacitance must be chosen for C1 so that it can supply the charge required tokeep Q1 on for all the time. When LIN = 0 and HIN = 1, this charge onthe C1 and C2 is used to add the extra voltage – VB in this case – above thesource level of Q1 to drive the Q1 in high-side configuration. ![]() When LIN = 1 and Q2 is on, C1 and C2 get charged to the level on VB,which is one diode drop below +VCC. ![]() D1, C1 and C2 along with the IR2110 form the bootstrapcircuitry.
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