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Input: 100-240V 0.45A (AC) Output: 5.1V 2.1A (DC) I know that the input and output ratings are maximum. The AC voltage in my country is 230V. Through a simple calculation, I can deduce the following (correct me if I am wrong): Input power: 103.5W. Output Power: 10.71W.
- What is the difference between "Input" and "Output" values on power ...
So, the input power is always larger than the output power....
- Why is there a seemingly big difference in power supply input and ...
The output spec is what is guaranteed to be a deliverable on...
- Do the power ratings on the nameplate of an AC motor indicate ...
The electrical power input to a motor is always higher than...
- What is the difference between "Input" and "Output" values on power ...
22 Μαΐ 2022 · \(P_{out}\) is the output power, \(P_{in}\) is the input power. Generally speaking, the higher the efficiency, the better. This implies less waste. In other words, if a system is 30% efficient, then 70% of the input power is wasted, whereas if a system is 99% efficient, then only 1% of the input power is wasted.
So, the input power is always larger than the output power. In your example, the power adapter is rated to use a maximum of 58 W (0.24*240), but can output only 5*1.5=7.5 W. So, worse case based on the label, it will use 58 W, but only supply 7.5 W to your device, so about 13% efficient.
Output power is often referred as the useful power because only this part is useful for people who manage the system. On the other hand, if we divide by time the total energy produced by the source, we obtain the total or input power.
21 Αυγ 2023 · The output spec is what is guaranteed to be a deliverable on a continuing base, the input spec is what fuses should be rated for to account both for reactive power components and for momentary load spikes (and inrush currents) exceeding the continuous power rating.
21 Αυγ 2023 · The actual power shown on the table is when power is drawn across all rails. The rating of both input and output takes account of absolute peak draw, not just one single rail. The reason they're giving you the 12V rail as the "product number" is because normally that is where the most power is drawn in modern computers.
15 Σεπ 2015 · The electrical power input to a motor is always higher than the mechanical power output due to efficiency being less than 100%. Basically, that whole entire sheet is telling you that power out = power in * efficiency.
