View Full Version : how to make power supply

07-17-2010, 07:46 PM
i want to make my own power supply at home ,as mentioned in RI "Shopping list before you start"

so pls suggest me how to make it with listed parts in that thread ....:) and circiut too,....

07-17-2010, 09:31 PM
There are quite a lot of designs for power supplies you can build.

The most simple is the common power supply, which uses a transformer to step down the AV voltage, convert it to DC and feed it to a variable voltage regulator, which is usually a LM317. This is a cheap and easy solution, but the maximum current you can typically get is around 1 - 1.5 A, which may not be sufficient to run most robots.

You may also opt for a SMPS, which is the same power supply used in PCs and mobile chargers. It can offer better efficiency and current output, but is a little hard to build.

Google search for "power supply circuit" for further information

07-17-2010, 09:31 PM
Amitdhiman, you should try and search the forum and or other internet sources for a simple effective power supply

07-18-2010, 05:30 PM
thank u both....