This simple circuit is powered by the logic circuit itself. Components are still common, although they were obtained from somewhat old documentation.
July 2017 - The new Texas Instruments UCC20520 isolated drivers are already in the stock of Mouser...
The circuit shown in the figure can be used to detect the operation of infrared sources whose...
This 2005 circuit from a Linear Technology manual makes use of the LTC610HV and an optical coupler that...