Enter the core power loss (watts), the dc resistance power loss (watts), and the ac resistance power loss (watts) into the calculator to determine the Inductor Power Loss.

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## Inductor Power Loss Formula

The following formula is used to calculate the Inductor Power Loss.

**PiL = Pcore + Pdcr + Pacr**

- Where PiL is the Inductor Power Loss (watts)
- Pcore is the core power loss (watts)
- Pdcr is the dc resistance power loss (watts)
- Pacr is the ac resistance power loss (watts)

## How to Calculate Inductor Power Loss?

The following example problems outline how to calculate Inductor Power Loss.

**Example Problem #1**

- First, determine the core power loss (watts). In this example, the core power loss (watts) is determined to be 10 .
- Next, determine the dc resistance power loss (watts). For this problem, the dc resistance power loss (watts) is measured to be 98 .
- Next, determine the ac resistance power loss (watts). In this case, the ac resistance power loss (watts) is found to be 745.
- Finally, calculate the Inductor Power Loss using the formula above:

PiL = Pcore + Pdcr + Pacr

Inserting the values from above and solving yields:

PiL = 10 +98+745 = 853 (watts)

**Example Problem #2**

Using the same method as above, determine the variables required by the formula. For this example problem, these are:

core power loss (watts) = 47

dc resistance power loss (watts) = 4

ac resistance power loss (watts) = 3

Enter these given values into the calculator or above yields:

PiL = 47 + 4 + 3 = 54 (watts)