This circuit simulates a resistor controlled by digital signals. We found it in American documentation from the 90s. The basic component is a CMOS 4016 or 4066 digital switch.
This circuit was found in ancient American documentation. The configuration can be implemented with...
This circuit was found in the May 1989 issue of Radio Electronics magazine. The components can be...
With this circuit it is possible to control a relay up to 100 mA with an extremely low input...