This circuit was found in Motorola's Linear Interface ICs of 1993. The integrated circuit used is not common and the load current depends on the Triac.
This current meter with many scales was found in a 80s American documentation. The operational amplifier...
This 90s Motorola circuit from, has current limiting foldback. The power transistor is from the...
This circuit was found in an Electronic Design from the 90s. The shapes of the signals obtained as result...