Half Wave Fast Rectifier (CB5160E)

This 80's circuit can be made with current comparators. Rectification accuracy is 1% DC up to 100 kHz.

Car Radio Switched Regulator (CB15133E)
This high-performance circuit was found in the 1982 SGS Linear Integrated Circuits Manual. The...
Smart Charger (CB26305E)
This circuit was found in Radio Electronics magazine from the 90's. The circuit is for small NiCad...
Negative Voltage Comparator LM3900 (CB15623E)
The circuit in the figure is a comparator for negative voltages, and a pair of polarization...