amateur_24
Member
Hi
I was thinking of building my own power supply because it's a bit of pain having an old pc power supply on my desk. I was thinking the safest / easiest way was to use an normal 12 Volt DC adapter then lower the voltage to 5V and 3.3V. So I get 12V, 5V and 3.3V. I know there are ready built power supplies but it's expensive and I found the simpler ones only have 1 output voltage.
The only difference is in a pc power supply the amperage it can output pair line is higher but for general electronics one ampere should be fine right?
Also the more expensive power supplies have all these protection features:
Under voltage protection
over voltage protection
over current protection
Short circuit protection
I'm guessing a voltgage regulator would do all this for me right?
Because I have 3 separate voltages, I need 3 channels right?
I was thinking of building my own power supply because it's a bit of pain having an old pc power supply on my desk. I was thinking the safest / easiest way was to use an normal 12 Volt DC adapter then lower the voltage to 5V and 3.3V. So I get 12V, 5V and 3.3V. I know there are ready built power supplies but it's expensive and I found the simpler ones only have 1 output voltage.
The only difference is in a pc power supply the amperage it can output pair line is higher but for general electronics one ampere should be fine right?
Also the more expensive power supplies have all these protection features:
Under voltage protection
over voltage protection
over current protection
Short circuit protection
I'm guessing a voltgage regulator would do all this for me right?
Because I have 3 separate voltages, I need 3 channels right?