Electronics > Beginners

How do I make an LED light up using a comparator?

(1/7) > >>

renzoms:
This is my circuit that lights up an LED for less than 4 seconds of volts using 4V. How do I make the LED light up? TLC372 comparator

james_s:
Many comparators have an open collector output, in which case you need to connect the LED (through the required resistor) from 5V to the output of the comparator. When the comparator triggers it will pull the output low and light the LED.

renzoms:
I tried 5V to the current limiting resistor and (anode and cathode of the) LED, in series, then the output of the comparator the LED to ground. Didn't work

T3sl4co1l:
+in is grounded. Connect it to the other side of C1. ;)

Tim

renzoms:
Greatness  :clap:. Still doesn't work.

Navigation

[0] Message Index

[#] Next page

There was an error while thanking
Thanking...
Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod