Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Spatula
Arcuate motion control in electrostatic actuators
Programmable computer mouse
Method and system for reduction of quantization-induced block-discontinuities and general purpose audio codec
Visual indicator of online backup
Charge pump and method of biasing deep N-well in charge pump
Phospholipid-based powders for drug delivery
  Randomly Featured Patents
System and method for GPS acquisition using advanced tight coupling
Well injection valve retrievable choke
Precision fireworks display system having a decreased environmental impact
Wall mountable support
Seine net device
Illuminated retractor for use in connection with harvesting a blood vessel from the arm
Polymerization of 2-pyrrolidone with cesium or rubidium catalyst
Threading bar for use with a wire coating apparatus having parallel transport cables
Thermal printhead manufacture
Method and apparatus for fixing the rotational positions of eccentric elements in an optical fiber connector