This shield circuit with an optical coupler was found in an 90s EDN. The circuit can be used with voltages from 0 to 600 V with the indicated component values.
Suggested by National Semiconductor in a documentation of the 90s, this circuit uses a power...
August 2016 - It can be obtained from Mouser Electronics the battery protectors series bq7790x of...
This circuit was found in a 1978 British magazine, but it can still be mounted by simply replacing the...