Resources Contact Us Home
Two degree of freedom controller

Image Number 10 for United States Patent #5195028.

A PI type 2DOF controller comprises setpoint filter for receiving a setpoint value, and outputting a control setpoint value, the setpoint filter having a transfer function which follows the setpoint value, and is expressed by the following formula: ##EQU1## where T.sub.I : an integral time, S: a Laplace operator, .alpha.: a constant which can be set between 0 and 1, and .beta.: a constant which can be set between 0 and about 10, deviation-calculating portion for calculating a deviation between the control setpoint value and a control value fed back from a controlled system, control operation portion for receiving the deviation, executing at least a PI (P: proportional, I: integral) control operation, and outputting a manipulative variable, and applying portion for applying the manipulative variable to the controlled system.

  Recently Added Patents
Three-dimensional filter
Method of producing probabilities of being a template shape
Implant free extremely thin semiconductor devices
Cryptographically generated addresses using backward key chain for secure route optimization in mobile internet protocol
Method and apparatus for filter-less class D audio amplifier EMI reduction
Base station apparatus and method for use in mobile communication system
Method and system for checking citations
  Randomly Featured Patents
Use of GPR30 receptor ligands to mediate neurotrophic action
Stretch wrapping apparatus
SCR ammonia slip detection
Glial cell line-derived neurotrophic factor regulation of ureteric budding and growth
Polyester resin exhibiting optical anisotropy in molten state and composition thereof
In Ovo vaccine against infectious bursal disease
Process for the removal of metal ions from an aqueous medium utilizing a coal gasifier slag composition
Rotary device with reciprocating vanes and seals therefor
Manufacturing method for optical recording medium, optical recording medium, optical information device, and information reproducing method
Pneumatic pressure regulation system