1. What is Inductance Calculation?

The inductance calculation using turns and AL value is a fundamental formula in inductor design. It helps determine the inductance of a coil based on the number of wire turns and the core's AL value.

2. How Does the Calculator Work?

The calculator uses the inductance formula:

Where:

• \( Turns \) — Number of wire turns
• \( AL\ Value \) — Inductance factor in nanohenries per turn squared (nH/turn²)

Explanation: The inductance increases with the square of the number of turns and is directly proportional to the AL value of the core material.

3. Importance of Inductance Calculation

Details: Accurate inductance calculation is crucial for designing inductors for specific applications like power supplies, filters, and RF circuits.

4. Using the Calculator

Tips: Enter the number of turns (must be positive integer) and the AL value in nH/turn² (must be positive number). The calculator will compute the inductance in nanohenries (nH).

5. Frequently Asked Questions (FAQ)

Q1: What is AL value?
A: AL value is a property of the core material that indicates how much inductance you get per turn squared. It's typically provided in the core's datasheet.

Q2: Can I use this for air core inductors?
A: Yes, but the AL value for air cores is very small (about 25-30 nH/turn² for typical air core coils).

Q3: How accurate is this calculation?
A: The calculation is theoretically accurate, but actual inductance may vary due to factors like winding technique, core imperfections, and proximity effects.

Q4: What are typical AL values?
A: AL values range from <1 nH/turn² for high-permeability cores to several thousand nH/turn² for ferrite cores.

Q5: How does core material affect inductance?
A: Core materials with higher permeability will have higher AL values, resulting in more inductance for the same number of turns.