1. What is a Ferrite Core Calculator?

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 (nH, μH, mH, or H)
• \( A_L \) — AL value of the ferrite core (nH/turn²)
• \( N \) — Number of turns

Explanation: The AL value is multiplied by the square of the number of turns to determine the inductance.

3. Importance of Ferrite Core Calculation

Details: Proper inductance calculation ensures correct operation of circuits involving inductors, transformers, and electromagnetic components.

4. Using the Calculator

Tips: Enter the AL value (typically provided in the ferrite core datasheet), number of turns, and select your desired output unit.

5. Frequently Asked Questions (FAQ)

Q1: What is AL value?
A: AL value is the inductance factor that specifies the inductance per turn squared for a particular ferrite 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.

Q3: Why does inductance depend on turns squared?
A: Because both the magnetic field strength and flux linkage increase with the number of turns, resulting in a squared relationship.

Q4: Can I use this for air-core inductors?
A: No, this calculator is specifically for ferrite cores. Air-core inductors use different calculations.

Q5: How accurate is this calculation?
A: It provides a good estimate, but actual inductance may vary slightly due to factors like winding technique and core variations.