この DC電力計算機 helps determine the power output or consumption in a direct current (DC) electrical system. It is widely used in electrical engineering, automotive systems, solar panels, and battery-powered devices. By inputting voltage and current values, users can quickly calculate power in watts, ensuring efficiency and proper power management in circuits.
This tool is essential for engineers, technicians, and DIY enthusiasts working with DC electrical systems, helping them optimize power usage and prevent overloading.
式
計算する DC power (P)、次の式を使用します。
DC Power Calculation:
P = V * 私
どこ：
- P = power in watts (W)
- V = voltage in volts (V)
- I = current in amperes (A)
This formula applies to pure DC circuits, where power is simply the product of voltage and current.
DC Power Conversion Table
Below is a quick reference table with common voltage and current values along with their corresponding power output.
| 電圧（V） | 電流（A） | 電力（W） |
|---|---|---|
| 5V | 1A | 5W |
| 12V | 2A | 24W |
| 24V | 5A | 120W |
| 48V | 10A | 480W |
| 120V | 15A | 1800W |
| 230V | 10A | 2300W |
この表が提供するのは、 quick estimates 手動計算を必要とせずに。
Example of DC Power Calculator
計算してみましょう the power output of a 12V battery supplying 3A of current:
- 式を使用する:
P = V * 私 - Substituting the values:
P = 12V * 3A - 結果:
P=36W
だから、 12V電源 配信する 3A 生成されます 36ワット 力の。
最も一般的な FAQ
Calculating DC power ensures that electrical components operate within safe limits, preventing overheating, overloading, and energy waste. It also helps in バッテリー寿命 estimation and power efficiency optimization.
No, this calculator is specifically for DC回路. AC circuits involve factors like power factor (PF) と リアクタンス, requiring a different formula.
In 太陽光発電システム, you can use this calculator to estimate power output from 太陽電池パネル を乗算することで voltage and current values generated by the panel.