Title :
An Accurate Analog Multiplier and Divider
Author :
Kettel, E. ; Schneider
Author_Institution :
Telefunken Research Institute, Ulm, Germany.
fDate :
6/1/1961 12:00:00 AM
Abstract :
In the time-division multiplier the product x1·x2 is formed by pulse-duration modulation with x1 and amplitude modulation with X2. The circuit can be arranged in such a manner that division by means of a quantity x3 can be carried out simultaneously, the output being x1·x2/x3. When transistor switches are employed the error is 1·10¿4 machine units only. The zero error for X2, used for amplitude modulation, can be reduced to 2·10¿5 machine units.
Keywords :
Amplitude modulation; Analog computers; Circuits; Commutation; Computer errors; Feedback loop; Flip-flops; Low pass filters; Pulse modulation; Switches;
Journal_Title :
Electronic Computers, IRE Transactions on
DOI :
10.1109/TEC.1961.5219198
