Title:
CONTROL DEVICE
Document Type and Number:
Japanese Patent JPH01180603
Kind Code:
A
Abstract:
PURPOSE:To reduce the driving delay of an actuator and to decrease the electrical and mechanical noises by setting a smoothing circuit before a driving circuit to suppress the changing value of a control signal less than a limit level for each reference time less than a sampling cycle. CONSTITUTION:A smoothing circuit 2 or 3 is set before a driving circuit 4 to suppress the changing value of a control signal B less than a limit level for each reference time less than a sampling cycle. Therefore the changing value of the signal B received from a control arithmetic circuit 1 measured for each reference time less than the sampling cycle, i.e., the stepped changing value is suppressed less than the limit level and outputted from the circuit 2 or 3. In other words, the sudden rise or fall of the signal B of the circuit 1 is smoothed by the output of the circuit 2 or 3. Thus it is possible to reduce the driving delay of an actuator and to improve the control quality. In addition, the electrical or mechanical noises produced when the actuator is driven can be decreased.
Inventors:
NITO MASAO
Application Number:
JP460088A
Publication Date:
July 18, 1989
Filing Date:
January 12, 1988
Export Citation:
Assignee:
FUJI ELECTRIC CO LTD
International Classes:
G05B21/02; (IPC1-7): G05B21/02
Attorney, Agent or Firm:
Iwao Yamaguchi
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