Electricity: motive power systems – Battery-fed motor systems
Reexamination Certificate
2005-04-26
2005-04-26
Ro, Bentsu (Department: 2837)
Electricity: motive power systems
Battery-fed motor systems
C318S269000, C318S270000, C388S911000
Reexamination Certificate
active
06885160
ABSTRACT:
The present invention is a drive control device for controlling an electric rotational actuator which moves the driver, including: a reference comparison signal generation circuit; a detection circuit for detecting the speed of the actuator and outputting this as a detection signal; a speed designation circuit of the actuator; a rotation control circuit of the actuator; and a phase comparison circuit for comparing the phase of the reference comparison signal and the phase of the detection signal and outputting the comparison result to the rotation control circuit; wherein the rotation control circuit controls the speed of the actuator to conform with the speed designation based on the phase comparison result.
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Nixon & Peabody LLP
Ro Bentsu
Seiko Epson Corporation
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