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
Self-service channel marketplace
Data feed management
Memory device and self interleaving method thereof
Stabilization of dicarbonate diesters with protonic acids
Plasmon generator includes three metal layers for thermally-assisted magnetic recording
Topology discovery, control channel establishment, and datapath provisioning within an aggregation network with centralized control
Systems and methods for a signed magnitude adder in one's complement logic
  Randomly Featured Patents
Packaging and interconnection of contact structure
Configurable memory system with interface circuit
Hybrid optical and electronic packet switch
Disposable paper products with indicator means
Derivatives of imidazo(4,5-b)pyridines
Pipe coupler and method of coupling
Method of playing a box-office movie game
Window treatment support device
Steel sheet pile, sheet pile assembly thereof and the method of constructing the assembly
Safety biopsy forceps