Continuous adaptive digital to analog control

摘要

Within a mechanical control system, continuous adaptive digital to analog control may control an analog actuated device by comparing a current value for a process variable to a setpoint value to obtain an error value, wherein the process variable may represent a monitored condition controlled by an analog actuated device. Continuous adaptive digital to analog control may also include converting the error value into a digital pulse time value representing a correction to compensate for the error value. The error value may be converted using a gain factor derived from timing characteristics for the actuated device. An analog value may be output based on a previously output value and the digital pulse time value. Continuous adaptive digital to analog control may repeatedly adjust the actuated device according to the changing values for the process variable.

主权项

1. A system, comprising:
an analog actuated device configured to control a monitored condition of a system; a measuring device configured to measure values for the monitored condition of the system; and a control device coupled to the analog actuated device and the measuring device, wherein the control device is configured to:
repeatedly adjust the analog actuated device based on the monitored condition and a setpoint value, wherein to adjust the analog actuated device the control device is further configured to:
receive a current value for the monitored condition from the measuring device;compare the current value with the setpoint value for the monitored condition to obtain an error value;convert the error value into a digital pulse time value representing a control correction for the analog actuated device to compensate for the error value; andoutput, to the analog actuated device, an analog voltage value based at least in part on a previously output voltage value and the digital pulse time value.