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Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Is it kind of like the transistor allows you to draw more voltage or current from the battery than it's rating? Obviously it can't be just increasing the total energy in the circuit or there would be no energy crisis.
I think I get it, but in this example you're not really amplifying the current right? I mean the water's shooting out faster in a smaller stream but it's still the same amount of water leaving the hose. I could imagine calling this increasing the voltage because it would cause the water pressure...
Gotcha, so it's not like the charger "pushes" extra current, but this is only when the load contains sufficient circuitry to prevent overload right? Otherwise why is it a different scenario for applying too much current to an LED? How can an LED be rated for 3V but then when you apply 3V it's...
And the hot plug pack in question would be supplying 800 or 300mA? 300 right because that's it's max, which would force the device to function at 300mA? And it gets hot because it's dispersing current through internal resistors as heat?
Sorry, trying to understand the basics. So let's say a wall charger says "OUTPUT: 3V 500mA"...why is it telling me the amperage? Isn't the amperage based on whatever the device draws? Or does that mean 500mA max? If I use a different charger that says it outputs 3V and 800mA, would it fry the...
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