Back to results
US 6,756,749 B2Granted
Motion control system including both a stepper motor and a DC motor
AssigneeHewlett-Packard Development Company, L.P.
InventorsWilliam Robert Haas, Kirk Tecu, David W. Boyd
Life of this patent
Estimating the term…
Abstract
A motion control system comprises both a stepper motor and a DC motor. The motors are coupled, and may be operated independently or in concert for various scan types. The stepper motor may be used as an encoder for measuring the position of the mechanism.
Claims16
A motion control system comprising:
- a) a stepper motor;
- b) a DC motor mechanically coupled to the stepper motor;
- and
- c) an electronic control module electrically connected to both motors for controlling both motors;
- and wherein the motion control system is operated with only one of the motors providing motive power and the other motor de-energized.
2 more elements
A scanner comprising:
- a) a stepper motor;
- b) a DC motor mechanically coupled to the stepper motor;
- c) an electronic control module electrically connected to both motors for controlling both motors;
- and
- d) a scanning mechanism coupled to at least one of the motors;
- and wherein the scanner is operated with only one of the motors providing motive power and the other motor de-energized.
3 more elements
A method of motion control comprising the steps of:
- a) coupling a stepper motor mechanically to a DC motor;
- and
- b) energizing only one of the motors and controlling it using an electronic control module.
A motion control system comprising:
- a) a stepper motor;
- b) a DC motor mechanically coupled to the stepper motor;
- and
- c) an electronic control module electrically connected to both motors for controlling both motors;
- and wherein the motion control system is operated with only the stepper motor providing motive power and the DC motor de-energized when resolution is of primary importance;
- and wherein the motion control system is operated with only the DC motor providing motive power and the stepper motor de-energized when speed is of primary importance.
3 more elements
A method of motion control, comprising:
- a) coupling a stepper motor mechanically to a DC motor;
- and
- b) energizing only the stepper motor when resolution is of primary importance;
- and
- c) energizing only the DC motor when speed is of primary importance.
2 more elements
Dependencies are inferred from the claim text.