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专利名称：Apparatus and method for compensating
for warm-up drift in a servo motor
发明人：Jae W. Jeon申请号：US08/120753申请日：19930915公开号：US05420490A公开日：19950530
摘要：A register stores the value from the integral controller of the PID controllerwhenever it receives a feedback signal. A main controller outputs a warm-up driftcompensation value whenever the servo motor is at a standstill. An arithmetic unitcalculates the sum of the speed command signal from the PID controller, the warm-updrift compensation value from the main controller and a speed feedback signal andapplies the result to the servo motor. In order to compensate for the warm-up drift inthe servo motor, the main controller controls the position control apparatus by resettingthe warm-up drift compensation value as described above.
申请人：SAMSUNG ELECTRONICS CO., LTD.
代理机构：Burns, Doane, Swecker & Mathis
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