Power Supply Efficiency Calculator

Calculate Power Supply Efficiency



Formula

To calculate the Power Supply Efficiency (Eps):

\[ Eps = \left( \frac{OP}{IP} \right) \times 100 \]

Where:

What is Power Supply Efficiency?

Power supply efficiency refers to the ratio of the output power to the input power of a power supply unit, expressed as a percentage. It indicates how effectively the power supply converts the input electrical power into usable output power. Higher efficiency means less energy is wasted as heat, resulting in better performance and lower energy costs.

Example Calculation 1

Let's assume the following values:

Using the formula:

\[ Eps = \left( \frac{120}{150} \right) \times 100 = 80 \% \]

The Power Supply Efficiency is 80%.

Example Calculation 2

Let's assume the following values:

Using the formula:

\[ Eps = \left( \frac{180}{200} \right) \times 100 = 90 \% \]

The Power Supply Efficiency is 90%.