This circuit uses CMOS integrated circuits and can operate with CMOS logic from 3 to 15 V or TTL with 5 V power. The power is obtained from the circuit under analysis.
We found this circuit in a year 2000 documentation. It must be powered by a voltage of 5 V as it...
This circuit was found in the February 1990 issue of Radio Electronics magazine. The circuit uses...
Voltage comparators, such as those in the LM139/239/339 series, consist of devices that can be...