1. What is Flyback Power Calculation?

The flyback power calculation determines the power handling capability of a flyback transformer in switch-mode power supplies. It's essential for designing efficient power conversion systems.

2. How Does the Calculator Work?

The calculator uses the flyback power equation:

Where:

• \( P \) — Power in watts (W)
• \( L \) — Inductance in henries (H)
• \( I \) — Current in amperes (A)
• \( f \) — Frequency in hertz (Hz)

Explanation: The equation calculates the energy stored in the inductor during each switching cycle and multiplies it by the switching frequency to determine total power.

3. Importance of Flyback Power Calculation

Details: Accurate power calculation is crucial for designing efficient power supplies, selecting appropriate components, and ensuring thermal stability of the system.

4. Using the Calculator

Tips: Enter inductance in henries, current in amperes, and frequency in hertz. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is a typical frequency range for flyback converters?
A: Common frequencies range from 50 kHz to 250 kHz, with higher frequencies allowing smaller transformers but increasing switching losses.

Q2: How does inductance affect flyback power?
A: Higher inductance stores more energy per cycle but may limit maximum power output due to saturation constraints.

Q3: What safety margin should be used in design?
A: Typically 20-30% margin above calculated power to account for losses and component variations.

Q4: How does current affect the calculation?
A: Power increases with the square of current, making current the most significant factor in the equation.

Q5: What are common applications of flyback converters?
A: Used in AC/DC adapters, LED drivers, and low-to-medium power isolated power supplies.