Email: Password: Remember Me | Create Account (Free)

Back to Subject List

Old thread has been locked -- no new posts accepted in this thread
Chico Magalhães
01/12/12 22:23
Read: 1507 times
Florianópolis
Brazil


 
#185455 - Opamp circuit output invert
Hello guys...
I was a long time looking for a circuit to detect sound beats using an electret mic, about a month ago I had a laser show device in hand (borrowed from a friend) and made a copy of the audio circuit, I believe it has a low pass filter and a comparator or something like that but I dont understand anything about this.
This circuit is active low but I need it active high to drive some LEDs (maybe with a mosfet).
I need some help to invert its output.
Thank you very much.


http://www.8052.com/users/chico/soundsensor.jpg

List of 5 messages in thread
TopicAuthorDate
Opamp circuit output invert      Chico Magalhães      01/12/12 22:23      
   Swap pins 5 and 6      Oliver Sedlacek      01/13/12 03:34      
   Tricky...      Kai Klaas      01/13/12 07:14      
      Another circuit...      Chico Magalhães      01/19/12 17:38      
         Potential for problems      Per Westermark      01/20/12 02:43      

Back to Subject List