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| Consequences of changing Voltage and Amps question |
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| figure1a:
I have limited electronics knowledge. Mostly a tinkerer. I have always understood amps to be the measurement of current. Also, I know that volts x amps = watts. So, for example, if I have a DC project that is 20V and capable of delivering 5A, it can output 100W of power. Here is my question. If we were to alter the power supply so that it still equals 100W of output (let's do an extreme like 5V and 20A), what are the consequences? I am asking this because recently I read somewhere where someone wrote about changing a circuit slightly to a lower voltage but with more amps but the exclaimed that the amps would be more and that could be bad. It was also a fairly low voltage DC setup. |
| xavier60:
Designing power supplies for higher current is more challenging. What type of design is it? |
| Nerull:
It's not as simple as the output power of the supply, you have power dissipated in the components of the power supply. This is unlikely to be the same. |
| figure1a:
Re: Designing power supplies for higher current is more challenging. What type of design is it? It's mostly a hypothetical question. But it was dealing with a low voltage DC circuit. Besides a component in the design needing a certain amount of voltage to be more efficient or something, is there a difference between 20V/5A and 5V/20? Safety? One run hotter than the other? |
| figure1a:
--- Quote from: Nerull on April 18, 2019, 01:31:04 am ---It's not as simple as the output power of the supply, you have power dissipated in the components of the power supply. This is unlikely to be the same. --- End quote --- Gotcha. Thanks! |
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