Patent ID: 8838257
Filing Date: 2014-09-16
Classification: G05B,G11B

Abstract:
1. A controller comprising: a control section which generates a control value for controlling a controlled device; a limiter which receives the control value and generates a regulated value, wherein the regulated value is within a predetermined control range, the predetermined control range including a predetermined range value and an offset, the offset being used to define a relationship between the predetermined range value and a predetermined maximum or a relationship between the predetermined range value and a predetermined minimum; an adjusting section which adjusts the control value through feedback control based on a difference between the control value and the regulated value; a state control section which controls the controlled device based on the regulated value to allow the controlled device to operate in a steady state; and a setting section which controls the limiter based on whether the regulated value is sufficient to allow the controlled device to operate in the steady state, wherein the setting section is configured to set the regulated value as the predetermined range value if the regulated value meets one or more parameters used to place the controlled device in the steady state.