Using L144 operational, this circuit applies to other equivalent operational. The circuit is from a documentation two years 90. The power supply must be symmetrical.
This circuit was obtained from Linear Technology documentation from the 80's. Powered by 5 V it...
We found this circuit in a 1967 Electronic design. However, it can be easily implemented even...
This circuit serves to prevent devices powered by 6 V from being left with a power cut. The...