Using only one integrated circuit this control was found in an 80's Electronic Engineering. The circuit has the drive's logic information and must be powered by an isolated power source.
July 2017 - Microchip's new MCP39F511 demonstration and development boards, which consist of...
This circuit, which controls both the temperature and the level of a liquid in a reservoir, was...
This circuit provides a constant current of 1 mA, stabilized by an LED, which can be equivalent to that...