Hi Forum!
I'm currently building a 0-20V power supply using a L200, and would like to make 5 led bar display as a 'look good' feature. Im planning on using a lm3914 driver since I have one laying around.
I looked at the datasheets and simply did not understand how this driver works.
How would I have the driver light up one led every 4V? What is the reference voltage used for? and do I need to be concerned about excessive current draw, since it is a power supply and I dont want to waste too much power on LED's and drivers.
Thank you very much!
Regards
I'm currently building a 0-20V power supply using a L200, and would like to make 5 led bar display as a 'look good' feature. Im planning on using a lm3914 driver since I have one laying around.
I looked at the datasheets and simply did not understand how this driver works.
How would I have the driver light up one led every 4V? What is the reference voltage used for? and do I need to be concerned about excessive current draw, since it is a power supply and I dont want to waste too much power on LED's and drivers.
Thank you very much!
Regards