# what does input and output mean on a charger

But when you charge your iphone in the car there are variation in the currents and voltage received by the charger which are dependent upon the way the car is driven, how many pits are present on the road.

Can I close my money in HSA and transfer it to another bank account and use it for non-medical purpose? Input is the range of voltages it will operate from Output is the output voltage and the maximum current it can supply. But how does that work? Whereas the output value is the actual nominal continuous output, the input value is the connection value or fuse value, i.e. The output means the constant voltage and the maximum current provided on the USB port of the adapter. As a thought experiment, if you connected the AC input of the charger to a 140V DC supply and the charger's output to a load resistor that took 2.1 Adc (10.71 watt load) and assumed the power conversion efficiency in the charger was 80%, you would expect to see about 14 watts taken from the input DC supply of 140V.

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Are Java programs just instances of the JRE? That is the main reason why both of them take almost the same time to charge your iphone. Getting full power from my backup generator to my electrical panel. Traditionally most AC powered devices have a connection rating, i.e.

So, from what I can infer, the power drawn would just be based on the rated efficiency (based on guidelines), right? Undoubtedly the charger you have is a switching regulator. HTC P/N: 79H00095-01M. You are allowed to choose whichever answer you want to accept if you feel it answers your question. Category:FAQ, It is easy to find that “Input” and “Output” are printed on a wireless mobile charger or its package as below, some manufacturers prefer to mark them in terms of “V/A”, and some manufacturers prefer to mark them in terms of “W”, W=V * A. As we wrote before that the conversion ratio of wireless charging keeps at 60-75%, the higher the better, it means that Output=Input * (60-75)%.

Does Windows know physical size of external monitor? Motorized bicycle power output? To subscribe to this RSS feed, copy and paste this URL into your RSS reader.

For example, a computer has inputs like electricity, the movements and clicks of your mouse, and the keys you type on a keyboard. Would the rest of the UK lose anything more than honor if Scotland exits the UK? Is it okay to regularly turn off lamps (2) via a power strip rather than their individual switches? When choosing a power supply to reduce energy use, pay attention to their efficiency and not their energy use.

I say this because that is what all modern chargers appear to be and the input voltage range is wide enough to make this assumption valid. I chose that answer, even though it's irrelevant to my question, as it explains why the Input and Output ratings on an adapter is as such. Is it 103.5W or 10.71W? “Input” usually can be easily tested via a USB device, but it is difficult to test “Output”. Do all amps need need a little gain to be able to output sound? What do the differences between the input and output mean? Solid white power cord. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Those signals are then interpreted by the computer and displayed, or output, on the monitor as text or images. What is the difference between число and количество?

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Are there any respected rabbis who say that the Avot did not follow all of the laws of the Torah before it was given? Or 1.5 amps? I suspect that "output" is in terms of DC and not actually drawing that much power so I should probably be looking at "input". Can all phones charge super fast? Turn everything else off in all other rooms. I say this because that is what all modern chargers appear to be and the input voltage range is wide enough to make this assumption valid.

How to re-allow Twitter to access my photos? New speed = 0? It can be anything and my main concern is not the iPad charger but a project that I would like to implement, involving various adapters.

Going to leave Pigrew hanging on such an answer!? At 240V, it would be 0.1A, but still 24W. The charger is basically taking the alternating current from your home … What is the difference between a 10a and 15a powerpoint? When using the evocation wizard's Sculpt Spells, can you protect fewer creatures than the maximum you are allowed? When it comes to charge speed, you’re only as fast as your weakest link – that is to say, you can only charge as fast as your charger or phone will allow. Is it safe to use an “18v ~ 20v” power brick/adapter for a device that originally had an 18v adapter?

How to progress a fantasy novel that is also slice of life? Based on the label, we don't know what is the real-life behavior. Flight Levels shall be transmitted by pronouncing each digit separately.

But some people on this site will vote to close any question with the slightest mention of a consumer product in it. Then, that data is printed onto a piece of paper, which is also considered output. Like humans, batteries age.

The actual performance will be somewhere in the middle, as the efficiency will generally decrease as the input voltage increases. Is it safe to wire an AC-DC adapter directly to a DC motor? RIP Pokemon, see you again never? @Passerby I know. The AC connection value is just a safety requirement. The only way to accurately calculate the cost of each device would be to buy a device such as a Kill-A-Watt and take averages. 2:07 pm by, February 25, 2016 This is the symbol for direct current. This, without doing the maths could mean that the input RMS current is twice the "useful" current: -.

The hotter the power supply (while plugged in), the less efficient it is. The computer sits between the input and output devices. Which one represents the amount of power being drawn from a circuit? 8.4V===450mA. A battery approaching the end of its life is something we’ve all experienced, whether it was with our cell phone or maybe our car. 2:35 pm by, October 26, 2016 In theory the car adapter can deliver more current than the ac adapter, but the actual current draw is determined by the device it is connected to. A computer program processes and digitises the input information.

Toaster oven makes my kitchen lights flicker. site design / logo © 2020 Stack Exchange Inc; user contributions licensed under cc by-sa. It will draw 0.5A whether it is connected to a 5V 1A adapter or a 5V 10A adapter. Can somebody with the technical acknowledge about this matter explain it and put it in the most discernible way possible for us to absorb it. What do negative phonon frequencies signify? Input on a charger is the voltage which it receives it also specifies the maximum and minimum voltage required to turn the charger on like on the iPhone charger the input is 100-240v AC while on the car charger input is 10-30v DC.

Input power = 140 Vdc x 0.1 Adc = 14 watt, Output power = 5.1 Vdc x 2.1 Adc = 10.7 watt. The AC voltage in my country is 230V.

Let's say it draws 0.5A. Exactly. So, knowing the maximum does not tell you their typical usage. This is used to give the end user a guideline figure of how many devices he can attach to that outlet. And how should be FL200 transmitted? at Address: Room 510, Block B, Bantian International Center, No.5, Huancheng South Road, Bantian, Longgang, Shenzhen, China. Output is the voltage and current that will leave the device.

When I check power adapters, I see things like "input" and "output". Can I connect it to an iPhone charger? Examples of output devices include the following. For additional information and examples, see our output device page.

“Input” is changing at every moment, so is the same for “Output”. Neither of your devices is an actual charger, they are both 5 volt current sources that your iphone will then use for charging purposes. If it’s going to die quickly at least it can charge quickly right? It is a maximum though and you can never know how much the device is actually drawing at any given time because it varies.

This extra power is turned into heat.

As we wrote before that the conversion ratio of wireless charging keeps at 60-75%, the higher the better, it means that Output=Input * (60-75)%. Use MathJax to format equations. Why is it sometimes hard to engage reverse gear in a manual transmission? To make that charger deliver any more power you’d have to change its electrical engineering. Really frustrating. How can I automatically disconnect a coffee maker and space heater without tripping the building's 20A circuit breaker? For example – an iPad charger has a maximum output of 10W (5V*2A), whereas an iPhone has a maximum input of 5W (5V*1A). What Do “Input” & “Output” Of Wireless Charger Mean? you can attach 20 of these devices simultaneously to a wall outlet rated at 2000W, or, when (significantly) more than that current flows in due to for instance an electrical fault within the device, the fuse will trip.

For example, as shown in the top half of the image, a keyboard sends electrical signals, which are received as input. Output: 4.2V===450mA [The === symbols are exactly as on the spec label.] The Overflow #45: What we call CI/CD is actually only CI. Because of inefficiencies in the power adapter not all of the input power is able to be output.

Examples of input devices include the following. Thanks for contributing an answer to Electrical Engineering Stack Exchange!

However, some devices can accept input and display output, and they are referred to as I/O devices (input/output devices).

At 100% efficiency you would think it would draw 3.75 amps at 120V to reach that 450W, but it actually uses only 90 watts (0.75 amps) because it isn't under full load all the time. What is the difference between data and information? How do I change voicemail assistant voice on iPhone? Here is a simple picture to help you understand. You could plug a 100W device into the iPhone charger and it will STILL only deliver 5W of power. Plot3D Equation of motion of a particle in a surface. (I know what those numbers mean: it works in the U.S and most parts of the civilized world, and in most automobiles with power takeoffs.)

EE.SE is all about sharing knowledge, not about collecting points :D My comment in caps is to the people who voted to close your question simply because your question mentioned an ipad.

Is it possible to power an AC-to-DC switching adapter with a DC input? I stated iPad charger since that is what I had beside me. If you haven’t already, you’ll start to hear about USB-C and USB 3.1; but unless you understand what those abbreviations mean, you’ll quickly get lost in the jargon. OUTPUT: 5V=1,0A LPS. So, when you connect it to an AC supply of 100V AC RMS, why could a current of 0.45 A flow? To learn more, see our tips on writing great answers. Making statements based on opinion; back them up with references or personal experience. Chargers and devices are rated for the power they can deliver and/or receive.