| ??? 01/13/12 05:23 Read: times |
#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 |
| Topic | Author | Date |
| Opamp circuit output invert | 01/01/70 00:00 | |
| Swap pins 5 and 6 | 01/01/70 00:00 | |
| Tricky... | 01/01/70 00:00 | |
| Another circuit... | 01/01/70 00:00 | |
Potential for problems | 01/01/70 00:00 |