Resources Contact Us Home
Two degree of freedom controller

Image Number 7 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
Flashing screwing structure
Interconnection designs and materials having improved strength and fatigue life
System and method for merging security constraints when using security annotations
Modular fluid reservoir
3-D image night light gun
Direct computing experience
Method and system for routing calls based on a language preference
  Randomly Featured Patents
Apparatus for draining fluid containers
Apparatus and method for filling regions bounded by conic curves
Manicuring appliance
Molded container having wall composed of oriented resin blend
Knitting machine, yarn processing method of knitting machine, yarn processing control device of knitting machine and program thereof
Method of shaping ring blanks
X-ray tube comprising two successive layers of anode material
Projection image display device
Method of fabricating airtight terminals
Chimney seal