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
Device for producing a connection grid with an integrated fuse
Device and process for isolating and cultivating live cells on a filter or extracting their genetic material
Data architecture and user interface for plasma processing related software applications
Power-on reset circuit
Radio communication devices, information providers, methods for controlling a radio communication device and methods for controlling an information provider
Negative electrode material for non-aqueous electrolyte secondary battery, method for manufacturing negative electrode material for non-aqueous electrolyte secondary battery, non-aqueous elect
Terminal for flat test probe
  Randomly Featured Patents
Managing working set in an extensible message transfer system
Display with controlled formation of bubbles
Portion of a shoe upper
Tissue graft composition
Electrophotographic toner and electrophotographic developer by use thereof
Carrying case for toy articles or the like
Film forming unit
Systems and methods for off-host backups
Methods and apparatuses for programming user-defined information into electronic devices
Random access method, parameter assignment method, wireless communication device, and base station using the same