The ML4421 controller IC from Micro Linear helps solve the speed-control problem in ac induction motors. Because such low-cost motors are reliable, they are ubiquitous, finding use in appliances, ...

The way we control the speed of fan motors or pump motors has tremendously changed in the past two decades with the introduction of variable-frequency drives (VFDs), aka variable-frequency controllers ...

In this article, as in industry, advanced process control (APC) refers primarily to multi-variable control. Multivariable control means adjusting multiple single-loop controllers in unison, to meet ...

Multi-variable model-based control is a technology known to provide superior performance over traditional single-input-single-output control strategies. Originally developed for petroleum refineries ...

Variable names are alphanumeric but must start with a letter. The length of a variable name is limited to thirty-two characters for non-SAS data set variables Model variables are declared by VAR, ...