Here’s the project which gives out various output voltages and this voltage can be easily controlled by two switches. The switches are connected to P3.0 and P3.1.The variable voltages are obtained with help of the LM317. This IC is an variable voltage regulator IC which can give regulated output from 1.2v to 37v. This voltage regulator can withstand upto 1.5A of current. Since LM317 is protected against short-circuit, no fuse is necessary. Thanks to automatic thermal shutdown, it will turn off if heating excessively.
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Tags: lm317, power supply, digital power supply