Hi all . I have a problem with Lm331. I connect Fout pin in Lm331 to B pin 2n2222 transistor. And i really want to know transistor 2N2222 can work on off with frequency about 1kHz. Because i want to measure voltage Dc by counting frequency use Microcontroller 8051! Thank !
It surely can. But there's no reason to use a transistor in this place. Just connect Fout to the 8051, with a pull-up resistor as suggested in the datasheet.
Hi dryvu,
Sorry, me isnt possible to download your file:-(!
Firefox,Opera & IntExplorer, all 3 are not enough to get it...
Pls send it me as PM & attached file or put it public on...
K.