An Electronic Voltage Integrator

The Electronic Numerical Integrator

The Electronic Numerical Integrator

The Electronic Numerical Integrator and Computer

It consisted of 40 panels arranged in a ’horseshoe’ shape in a room measuring 10 by 17 meters. The 40 panels housed the different units making up the ENIAC, connected to each other by electrical cables. The configuration of these cables was part of the way the machine was programmed to solve a specific problem. Instead of writing instructions and loading them into memory, the ENIAC operated bas...

CCCDBA Based Voltage Mode Differentiator and Integrator for Integrated Chips

In the present paper a voltage mode differentiator (First order high pass filter) and voltage mode integrator (First order low pass filter) have been proposed by using current-controlled current differencing buffered amplifier (CCCDBA). In the present work, an effort has been made to control the first order filters parameters electronically, adjusting bias current of CCCDBA. Here, in each circu...

Modified integrator for voltage model flux estimation of induction motors

This paper deals with voltage model flux estimators for speed sensorless induction motor drives. In order to eliminate the drift problems, the pure integrator of the voltage model is replaced with a first-order low-pass filter, and the error due to this replacement is compensated. An effective way to calculate the compensation is presented, and the compensation is carried out before the low-pas...