-
1
- #1
neo11
Electrical
- Jun 1, 2001
- 3
HEY!!
I am designing a circuit that reads the output from a device and when the output drops below a specified value, I am to output a pulse from a 555 timer chip. The problem is that a 555 timer operates from the positive edge of a pulse and the output from the voltage comparitor will send out a negative pulse as the voltage at the input drops below the reference voltage.
Neo11