This circuit makes use of comparators and common operational amplifiers, having been found in Motorola Linear Interface ICs of 1993. The circuit requires symmetrical source.
This circuit for the car was found in the April 1990 Radio Electronics magazine. The speaker is...
We found this circuit in a Texas Instruments documentation from 1973. Other operational amplifiers can...
This circuit was found in a 90's EDN. The circuit has a well-known configuration. The voltage...