This calculator will help you to design and find the optimal inductor value for a boost (step-up) converter circuit, ensuring that your circuit works with an efficient operation with a 30% ripple current.
Boost Converter Inductor Calculator
Enter the values below to calculate the optimal inductor value based on a ripple current of 30% of the load current.
Results:
Duty Cycle: 0 %
Optimal Inductor Value: 0 µH
How to Use the Boost Converter Inductor Calculator
Steps to Use:
Enter the Input Voltage (Vin) → The voltage from your power source which you want to boost (e.g lets say 12V).
Enter the Output Voltage (Vout) → The desired boosted voltage value which you want at the output (e.g let us say 220V).
Enter the Switching Frequency (kHz) → The PWM switching frequency of your astable multivibrator circuit (e.g you can set it up to work with 50 kHz).
Enter the Output Current (A) → The expected load current, which you want to supply the connected load at the output (e.g 1A).
Click the "Calculate" Button → The results will then show up in the relevant fields:
- Duty Cycle (%) → How long the switch stays ON in one cycle.
- Optimal Inductor Value (µH) → The required inductor size for stable operation.
Example Calculation
Given:
Vin = 12V
Vout = 220V
Switching Frequency = 50 kHz
Load Current = 1A
Click "Calculate" → The tool provides:
Duty Cycle = ~94.5%
Inductor Value = ~756 µH