Gate Driver Bootstrap Calculator

Calculate bootstrap capacitor value for high-side gate drivers. Accounts for gate charge, quiescent current, switching frequency, diode drop, and safety factor for reliable MOSFET/IGBT driving.

How to Use Gate Driver Bootstrap Calculator

Enter gate charge from the MOSFET datasheet, quiescent current, switching frequency, VCC supply voltage, diode forward drop, minimum bootstrap voltage, and safety factor. Click Calculate to get the recommended bootstrap capacitor value.

Step-by-Step Instructions

  1. Enter gate charge Qg and quiescent current
  2. Enter switching frequency and VCC supply voltage
  3. Set diode drop, min Vboot, and safety factor
  4. Click Calculate Bootstrap Capacitor for results

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