Left panel, superconducting rectifier circuit used to convert AC currents into DC using four superconducting diodes (blue) connected by superconducting interconnects and one smoothing capacitor (C ...

Diode D1 and capacitor C3 forms the output rectifier and filter circuit. If possible, try to replace D1 with a UF4001 fast diode for better efficiency. Zener diode D2 sets the output voltage to near ...

It is the same circuit as the classic simple precision rectifier (set to pass the negative half-sine), but with the non-inverting input of the op-amp connected to the voltage-to-clamp-to rather than ...