This circuit was found in an old Electronic Design. It makes use of sidacs and operational not very common today. The power supply must be symmetrical.
This circuit, which can be used safely, has been obtained in a 1987 documentation. It consists of a...
We found this circuit in Electronics Now magazine from December 1995. Any operational amplifier can be...
PIC16F19197 Microcontroller Family Combines Battery-Friendly LCD Drive with Core Independent...