LM317T Voltage Regulator with Pass Transistor

LM3914 Resistor Variable LED display. By adjusting the voltage on the 1k Ohm potentiometer, we can achieve a simple voltage divider that ranges from 0 to 5 volts on the wiper arm. This signal fed into the input of the LM3914N and is displayed out to the 10LED array. A separate potentiometer is used to set the threshold voltage so that when the input reads 2.5 volt the output only turns on 5LED's. Take a look and have fun, wiring this circuit up should be fun and simple.



http://www.youtube.com/watch?v=gxio_dP_ARg&hl=en

www.element-14.com - To introduce the new architecture of adjustable linear regulators from Linear Technology



http://www.youtube.com/watch?v=gsaFmmIaqwM&hl=en

bit.ly - This tutorial will provide a general overview of the LT3080 voltage regulator family as well as discussing some benefits and advantages to implementing the part in a design



http://www.youtube.com/watch?v=7JtRsfG5ir4&hl=en