1. What is the AC Power Calculation?

The AC Power calculation determines the input power required from the wall outlet to produce a given DC output power, accounting for power supply efficiency losses. This is particularly important for Cooler Master power supplies and other PSUs.

2. How Does the Calculator Work?

The calculator uses the power conversion formula:

Where:

• \( AC\ Power \) — Input power from wall (watts)
• \( DC\ Power \) — Output power to components (watts)
• \( Efficiency \) — Power supply efficiency (decimal, e.g. 0.90 for 90%)

Explanation: The equation accounts for energy lost as heat during the AC to DC conversion process in the power supply.

3. Importance of Power Conversion

Details: Understanding power conversion helps in selecting appropriate power supplies, estimating electricity costs, and ensuring system stability.

4. Using the Calculator

Tips: Enter DC power in watts and efficiency as a decimal (e.g. 0.85 for 85%). Typical efficiency values range from 0.80 to 0.94 for modern power supplies.

5. Frequently Asked Questions (FAQ)

Q1: Why is efficiency important in power supplies?
A: Higher efficiency means less energy wasted as heat, lower electricity bills, and often better power supply reliability.

Q2: What's a typical efficiency for Cooler Master PSUs?
A: Cooler Master offers PSUs with efficiencies from 80 Plus White (80%) to Titanium (94%) certified.

Q3: How does this affect my electricity bill?
A: The AC power value shows what your meter will actually measure and bill you for, including conversion losses.

Q4: Should I use peak or continuous power for calculations?
A: For safety margins, use your system's maximum continuous power draw, not peak or average.

Q5: Does this account for power factor?
A: This simple calculation doesn't include power factor. For precise measurements, power factor should also be considered.