This circuit is from 1994, from a technical documentation from National Semiconductor, but can be adapted to work with more modern components.
The circuit shown in the figure can either be used to activate a high-power lamp or LED for...
This circuit was found in a 1999 British magazine (ETI). It is a device that receives the signal...
The figure shows how to couple two CMOS circuits using an optical coupler to achieve isolation. The...