Iron Core Inductor Calculator

Number of turns:

Core area:mm²

Path length:mm

Permeability:

Current:A

Application Examples

1. Power Applications

Iron core inductors are commonly used in power applications:

Switching power supplies
Line filters
Motor drives
Power factor correction

2. Signal Processing

Applications in signal processing include:

Low frequency filters
Audio transformers
Impedance matching
Harmonic filters

3. Energy Storage

Energy storage applications:

DC-DC converters
Flyback transformers
Energy storage chokes
Pulse transformers

4. What is Iron Core Inductor?

Understanding iron core inductors:

Basic Structure:
- Coil wound around magnetic core
- Uses iron or ferrite material
- Higher inductance per turn
- Magnetic flux concentration
Core Types:
- Laminated iron core
- Powdered iron core
- Ferrite core options
- Hybrid core designs

5. Core Materials

Different core materials and their characteristics:

Laminated Cores:
- High permeability
- Good for low frequencies
- Cost-effective
- Higher core losses
Powdered Iron:
- Distributed air gap
- Stable with DC bias
- Moderate cost
- Lower permeability
Material Selection:
- Application requirements
- Frequency range
- Cost constraints
- Performance needs

6. Design Considerations

Key factors in iron core inductor design:

Core Selection:
- Material properties
- Size requirements
- Loss considerations
- Cost factors
Winding Design:
- Wire gauge selection
- Layer arrangement
- Insulation needs
- Thermal management

Theory

The inductance of an iron core inductor depends on both the coil geometry and the core material properties.

L = (μ0 × μr × N² × A) / l

where:
L = inductance in H
μ0 = permeability of free space
μr = relative permeability of core
N = number of turns
A = core cross-sectional area
l = mean magnetic path length

Core Properties

Initial permeability
Saturation flux density
Core losses
Temperature stability
Frequency response

Design Factors

Key considerations in iron core inductor design:

Core material selection
Air gap optimization
Winding configuration
Thermal management
Saturation prevention