Electronics > Beginners
What's best way to reduce a voltage... (picture)
billbyrd1945:
I just bought a generic looking power supply. It has three 12v terminals. I would like to use one of them to power my Arduino which can use up to 9v. What's the best way to reduce one of the outputs to 9v. Thanks for any help.
See photo.
RES:
Found this (just too small) diagram of a S-400-12: http://www.imajeenyus.com/electronics/20151028_smps_variable_voltage/s-400-12_schematic_thumb.gif
On the left you see a pot.(Voltage ....., can't read it)
Gyro:
That's a hell of a lot of current capability to power an Arduino safety!... at least without additional short circuit protection.
There's an article here http://imajeenyus.com/electronics/20151028_smps_variable_voltage/index.shtml that might help you with the output voltage adjustment though.
Refrigerator:
for an arduino you could get away with a LM7809
Gyro:
You can get 7808s too - and a fuse / PTC mounted at the PSU.
Just one point from the OP...
--- Quote from: billbyrd1945 on March 13, 2019, 06:29:05 pm ---...What's the best way to reduce one of the outputs to 9v. Thanks for any help.
--- End quote ---
There is only one output - multiple terminals are provided to cater for the high output current capability, but they are paralleled on the PCB.
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