Title:
【発明の名称】サーボ系
Document Type and Number:
Japanese Patent JP2687961
Kind Code:
B2
Abstract:
A servo system having an improved loop stability and response time. A phase shifting circuit is inserted in the feedback loop providing an open loop phase lag characteristic at a resonance frequency of a load system in a range of -270 DEG to -360 DEG . The transfer function of the phase shifting circuit is preferably of the form: where tau 3 and tau 4 represent time constants of the circuit.
Inventors:
Takagi Shigeyuki
Application Number:
JP4484687A
Publication Date:
December 08, 1997
Filing Date:
February 27, 1987
Export Citation:
Assignee:
Teijin Seiki Co., Ltd.
International Classes:
G05B11/36; F15B9/09; G05B11/42; G05D3/12; (IPC1-7): G05B11/36; G05B11/36; G05D3/12
Domestic Patent References:
| JP4720588A |
Attorney, Agent or Firm:
Ariga Gunichiro