Settling performance of operational amplifiers (opamps) is of great importance in analog signal-processing applications. Among different architectures, three-stage amplifiers are gaining more attention between analog circuit designers of modern technologies with small supply voltages where few devices can be stacked. Previous attempts to design and optimize a three-stage opamp based on settling...

We study in this paper the problem of robust and perfect tracking for discrete-time linear multivariable systems. By robust and perfect tracking, we mean the ability of a controller to track a given reference signal with arbitrarily small settling time in the face of external disturbances and initial conditions. A set of necessary and su$cient conditions under which the proposed problem is solv...

The DC open-loop voltage Gain is a very important specification for amplifiers. In order to increase this specification, in this paper, we have proposed an improved folded cascode gain boosted amplifier (improved FCGBA) which has extremely large DC open-loop voltage gain. Compared to traditional FCGBA, this novel structure needs only one auxiliary amplifier, so it is energy saving. Finally, wit...

In learning to use software, people spend at least 30% of their time on dealing with errors. It could therefore be desirable to exploit users’ errors rather than to avoid them. That is, to include error information in a manual to support users in dealing with errors. An experiment was performed to examine the functionality of such error information in a manual for a word processor. Two manuals ...

Settling disputes, even disputes about meaning, by third party arbitration is different from settling them by negotiation. Moreover, disputes can be settled by a procedure in which the disputing parties follow a protocol that prohibits them from simply following their original aims. They can collectively constitute an arbitrator. This provides an alternative model for resolving differences in m...

The expansion G of a graph G is the 3-uniform hypergraph obtained from G by enlarging each edge of G with a vertex disjoint from V (G) such that distinct edges are enlarged by distinct vertices. Let exr(n, F ) denote the maximum number of edges in an r-uniform hypergraph with n vertices not containing any copy of F . The authors [11] recently determined ex3(n,G ) more generally, namely when G i...

The design of multivariable ripple-free deadbeat controllers is a complex task. One approach which has shown promise for solving multivariable ripple-free deadbeat control (MRFDC) problems is the use of Diophantine equation parameters. The problem of solving robust multivariable ripple free deadbeat with time delays has not been solved. This paper proposes a hybrid two degree of freedom control...