A new type of analog multiplier

A new type of four-quadrant analog multiplier is proposed. Compared to the triangle-averaging and time-division type of multipliers it does not require a triangular-wave generator and thus it is quite simple. Unlike time-division multipliers based on the charge-equalization principle, it immediately acquires the steady state when one particular signal changes from one value to the other. Experimental results closely agree with the theoretical predictions. Improvements towards better accuracy and faster response are suggested.