Inductor Energy Storage Calculator

Inductor Energy Storage Calculator

Inductor Energy Storage Calculator

Understanding Inductor Energy Storage

The energy stored in an inductor is proportional to the square of the current flowing through it.

Formula: E = (1/2) L I2, where:

  • E: Energy in joules (J)
  • L: Inductance in henries (H)
  • I: Current in amperes (A)

Example Calculations

Example 1:

Scenario: You have an inductor with an inductance of 10 mH and a current of 2 A. What is the energy stored?

Steps:

  1. Convert inductance to henries:
    • L = 10 mH = 0.01 H
  2. Apply the formula: E = (1/2) L I2
  3. E = (1/2) × 0.01 × (2)2
  4. E = 0.02 J

Result: The energy stored is 0.02 J.

Example 2:

Scenario: You have an inductor with an inductance of 100 µH and a current of 500 mA. What is the energy stored?

Steps:

  1. Convert inductance and current to base units:
    • L = 100 µH = 0.0001 H
    • I = 500 mA = 0.5 A
  2. Apply the formula: E = (1/2) L I2
  3. E = (1/2) × 0.0001 × (0.5)2
  4. E = 0.0000125 J
  5. Convert energy to millijoules: E = 0.0000125 × 1000 = 0.0125 mJ

Result: The energy stored is 0.0125 mJ.