This CMOS circuit for LED displays is from a Radio Electronics magazine from February 1989. The circuit has an enable pulse for storing the value shown on the display.
This bargraph circuit is from an ancient American documentation. It indicates the charge state of...
Launched in 2017 the Microchip CL88020 is an LED driver optimized for 120 VAC input applications with an...
Like the previous circuit, this is used in the analog part of the telephone lines. The same...