Questions tagged [power-consumption]
Power consumption is the actual energy demand made on an existing power supply (e.g. battery). Consumption of electric energy is measured in joule (J), but for practicality often watt-hours (Wh) are used.
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Can power theft on a large scale be stopped
Reading this article, I started wondering if there is any way to stop people stealing electricity from a power grid. Let me clarify, the only techniques I have seen (and can think of) is either to
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If I plug in a USB wall adapter but don't have a device hooked up, will it use power?
So let's say I have a phone and a USB Wall Adapter. If it is plugged up, but I don't have my phone hooked up, will it use power? And if so, will it be a noticeable amount when left plugged in for ...
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Interpreting the power rating of the refrigerator [closed]
My refrigerator is rated as 130W of power. I need to know how to interpret this. Does that mean if the compressor works for a whole hour then only it consumes 130W? Or is 130W the average power ...
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what is the best solution to high electrical bill [closed]
My friends and colleagues are always complaining to me now, the more wages grow, the higher prices rise, particularly electricity high unacceptably, when sitting at home, nothing to do, just leave the ...
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Performance analysis of embedded firmware
I'm working on a project where I want to make the software the most power efficient it can be on the system.
What ways can I do performance analysis of my system?
I'd like to run the system off AAA ...
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Can I make power consumption analysis much harder by temporarily disconnecting the power supply?
I am thinking about building a dongle that acts as a USB or PS/2 keyboard device and is capable of doing some cryptographic things for me, e.g. provide time-based authentication codes, store passwords ...
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Power analysis of a simple circuit and battery lifetimes
I only do electronics stuff as a hobby so forgive my simple question.
I have a simple IR LED/photodiode detector circuit hooked up to an arduino microcontroller. It's not important but the purpose is ...
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How can I reduce the power consumed with wall warts?
I have been designing a project that requires a 5V for some components and 12V for others. I am planning to leave this plugged in 24/7 so I want it pretty efficient. I know they don't waste that much ...
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What is typical power consumption of FPGA devices
I am new to this site and had one question. I know typical CPUs have power consumption (TDP) in range of 100-200W, for example Intel Core2. I wanted to know what is typical power consumption of FPGAs. ...
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Relation between power consumed and MCPS (million cycles per second) consumed on a processor
I have been working on a ARM cortex A8 board on MP3 decoder.
While doing this I have a requirement saying the MP3 decoder solution I am doing should consume 50 mW. This generated few questions in my ...
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