All Questions
Tagged with power-consumption power-supply
22
questions
1
vote
2
answers
3k
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How do I calculate the required batteries and solar panels for my needs?
I am building my camper and want to know how to calculate exactly what batteries I need, and what solar panels to meet my needs.
Here is my list of the main and most powerful devices that I will use, ...
- 181
0
votes
0
answers
48
views
Arduino board consumption benchmark
I know consumption depend of the type of application, but I would like to know if a comparison of average consumption exist between arduino and similar boards (Teeny/Dfrduino...).
The board I am ...
- 21
0
votes
2
answers
56
views
Camera + Accessories and power
I work with movie cameras. Unlike normal cameras, they have many types of batteries, sizes, etc that can power them. Many attachments (wireless video transmitters, follow focus systems, monitors, etc) ...
0
votes
1
answer
96
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How many devices consuming 6.5W peak can I connect to a 100VA transformer?
Our customer wants to know the number of devices that they can connect to a transformer rated at 100VA. Our devices consume 6.5W peak when the batteries are charging. Here is my calculation and please ...
- 111
1
vote
1
answer
632
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How to calculate the power consumption of an ultrasonic distance sensor?
I’m working on a project that will be using an ultrasonic distance sensor continuously throughout the day. I want to figure out what the theoretical power consumption would be over a number of hours ...
0
votes
1
answer
2k
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Real consumption of SMD5050 Led Strips
I'm building my home lights with an SMD5050 Led strips.
And I'm completely lost after comparing specs consumptions with real measured data.
So on, I have 5 stripes and 1-to-5 Splitter from my ...
1
vote
1
answer
484
views
How to calculate check practically POWER of SMPS required for desktop computer
How to calculate check practically POWER of SMPS required for desktop computers
I have 10 desktop pc in one PC i have a high end gaming gigabyte motherboard with AMD processor graphic card and ...
- 121
0
votes
1
answer
88
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AC noise to electronic circuitry
I find some random issues that is still unknown. I'm using mean well SMPS 12v, 3A for supply and charging 2 cell battery 7.4v with a charging current 1.2A. The supplies are parallel which is switched ...
0
votes
1
answer
4k
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How to chose between 9V or 12V (or others) DC power supply [closed]
I see a lot of devices working either with a 9V DC input or a 12V DC input, usually provided through a DC jack connector. I was wondering about advantages and/or inconvenients of both voltages.
...
- 127
0
votes
4
answers
2k
views
Does the switching frequency and ON/OFF time duration of LED affect the power consumption of LED?
I want to drive the electronics consisting a controller with different peripherals on its I/O pins, one of which is LED, with 3V coin cell battery supply.
I want to determine if its switching ...
0
votes
2
answers
1k
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Needed capacitance calculation
I have a circuit in which I have a Li-Ion 3.6V battery, then a voltage regulator that outputs 3.3V and then the circuit. Also it contains a couple of tiny 1uF decoupling capacitors in front of and in ...
1
vote
1
answer
38
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variable regulation source
I am learning electronics and I want to make a , variable regulation source for a soldering iron, which works at 50W, how much voltage and amps should have the output? For the soldering iron works ...
- 13
0
votes
0
answers
33
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Required Power Supply Driver for Peltier Module TEC12715? [duplicate]
I am making a Mini-Air conditioner based on Peltier TEC12715. I'm going to use 10 peltier elements for better cooling. 1 peltier module requires: Umax(V):15.4 Imax(A):15 Max power consumption (watt):...
0
votes
1
answer
2k
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Power consumption of Nucleo L432KC board
I'm currently developing an IoT LoRa node using a Nucleo L432KC.
I want the node to be alive more than a year, so I want to test its energy consumption very carefully.
I intended to cut off any ...
- 1
0
votes
1
answer
3k
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Does a rated 5V, 2.1/1A charger provide a constant current? [closed]
I use power banks often to charge my iPhone. The default charger is a 5V/1A charger (which I assume provides constant current).
However, the power bank has 2 output ports - able to provide 5V=1A and ...
- 117