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Engineering
Electrical Engineering
Novice question about Relays, Capacitors, and Diodes
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[QUOTE="shushi, post: 6209375, member: 664645"] Ahahaha 😅 the entire circuit of the led button that controls the relay isn't directly connected to the battery (which is a portable charger; although there's another led button switch that is, that is connected in parallel with the switch that controls almost the entire device I'm building by acting as an on and off switch), that specific led button that controls the relay gets its power from a usb hub port that provides at most 2.4amps (which through my estimations, it seems only one and a half amp will be available to that hub) and I believe that hub has smart current limiting technology, but I'm not really positive on that, I have to double check since I'm still touching up on some areas in this total project. [ATTACH type="full" alt="project USB Hub.png"]246956[/ATTACH] in the schematics, the usb port that has a star is where the led switch and relay get their power from. But about current draws, although a battery or power source may provide more amperage than is required for a specific circuit, doesn't the resistance from the devices and the voltage of the circuit limits current draw on their own? Or in other words, that circuits and the devices will only draw on the current that they need despite what the battery provides? (and if this was the case, would that damage batteries since they are designed to drain at an appropriate rate?) Or is the amperage that the battery or power source provides forced onto the entire circuit which will wear out the entire circuit at a faster rate? Oh! and here's the pdf specifications for the led button switches, [URL='https://www.galco.com/techdoc/idec/al8m-a11-y_cp.pdf']PDF for the Galco AL8 Illuminated Pushbuttons[/URL] Thank you for raising an important question, I'm going to look into this further! [/QUOTE]
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Electrical Engineering
Novice question about Relays, Capacitors, and Diodes
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