LiquidOrb24
New Member
Hello All,
I have an easy question to ask, but yet I do not know the answer.
When you build a circuit lets just say for argument a microcontroller that runs off of 5 volts and maybe a 555 timer circuit connected to it with a few LED's that flash from the 555 timer and flash from the microcontroller. If I want to run this circuit from the wall outlet and decide to use a general transformer that steps 120 down to 5 volts and say 1A at the output and I hook it up to my circuit will it fry my circuit?
The 5 volts would be fine I believe but since the transformer has 1A at the output does that mean that no matter what 1A will go through my microcontroller and 555 timer, or does it mean that it has the capability to supply 1A but if my circuit doesn't draw that much current it will only draw the necessary current to make my circuit run.
On that note would it be better to get a transformer that has higher current at the output or less?
Thanks Everyone.
I have an easy question to ask, but yet I do not know the answer.
When you build a circuit lets just say for argument a microcontroller that runs off of 5 volts and maybe a 555 timer circuit connected to it with a few LED's that flash from the 555 timer and flash from the microcontroller. If I want to run this circuit from the wall outlet and decide to use a general transformer that steps 120 down to 5 volts and say 1A at the output and I hook it up to my circuit will it fry my circuit?
The 5 volts would be fine I believe but since the transformer has 1A at the output does that mean that no matter what 1A will go through my microcontroller and 555 timer, or does it mean that it has the capability to supply 1A but if my circuit doesn't draw that much current it will only draw the necessary current to make my circuit run.
On that note would it be better to get a transformer that has higher current at the output or less?
Thanks Everyone.