This circuit interrupts the power supply when grounding is missing. The circuit is from an old documentation (from the 80's) using current transformers and other components of the time.
This audio signal relay was found in an American 1980s documentation. The relay is in accordance...
We found this circuit in 2005 Linear Technology documentation. MPOSFET is load-matched. The...
The operational amplifier of this low current source may be any of the JFET type. The output...