1. What is an Inductance Calculator for Ferrite Core?

Definition: This calculator estimates the inductance of a coil wound on a ferrite core based on the AL value and number of turns.

Purpose: It helps electronics engineers and hobbyists design inductors and transformers for various applications.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( L \) — Inductance (henrys)
• \( A_L \) — Inductance factor (henrys per turn squared)
• \( N \) — Number of turns

Explanation: The AL value is a core-specific parameter that relates the number of turns to the resulting inductance.

3. Importance of Inductance Calculation

Details: Accurate inductance calculation is crucial for designing power supplies, filters, and RF circuits where precise inductance values are required.

4. Using the Calculator

Tips: Enter the AL value (typically provided in the ferrite core datasheet) and the number of turns. Both values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is AL value?
A: AL is the inductance factor that specifies how much inductance you get per turn squared for a particular core.

Q2: Where can I find the AL value?
A: The AL value is provided in the ferrite core's datasheet, typically in nH/turn² or μH/turn².

Q3: Does this calculator work for air-core inductors?
A: No, this formula is specific to ferrite cores. Air-core inductors use different calculation methods.

Q4: How does core material affect the calculation?
A: Different core materials have different AL values, which are already accounted for in the provided AL parameter.

Q5: What if my AL value is in nH/turn²?
A: Convert to H/turn² by dividing by 1,000,000,000 (1 nH = 10⁻⁹ H) before entering the value.