This circuit works like a solid-state contactor. We find it in General Electric documentation from 1965. SCRs can be modern equivalents according to the controlled load.
August 2017 - Texas Instruments is making available through Mouser Electronics the new integrated...
This circuit was found in a 90s EDN. In it we have the use of LEDs and diodes to stabilize the supply...
August 2017 - Mouser Electronics already has to supply the new Darlington MAAM-011206 Broadband...