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Topic: 24v power supply (Read 1 time) previous topic - next topic

jose_francisco

Hello.

I'm working in a board for Arduino and now the problem is to give the correct volts in the Vin pin from 24volts. Now I'm using a 7810 voltage regulator but....

is this correct?
Vin uses the internal voltage regulator?

Thanks in advance

retrolefty

#1
Jun 03, 2010, 07:30 pm Last Edit: Jun 03, 2010, 07:30 pm by retrolefty Reason: 1
Quote
I'm working in a board for Arduino and now the problem is to give the correct volts in the Vin pin from 24volts. Now I'm using a 7810 voltage regulator but....

is this correct?
Vin uses the internal voltage regulator?

Thanks in advance



That will work, the 24vdc is being regulated down to 10vdc, wired to the Vin pin and then the on-board regulator regulates it down to the +5vdc required for the board. However depending on how much current your board and external components draw that external 7810 regulator may be very hot and require a large heat sink.

Lefty

jose_francisco


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