METHOD FOR CONTROL OVER MECHANICAL RESONANT SYSTEM
First Claim
1. Apparatus for maintaining oscillation of a moveable subassembly including a mass and a bias, the apparatus comprising:
- a controller operable to;
receive a signal from a sensor associated with a position or motion of the subassembly, andoutput a drive signal for driving the assembly at or near a resonant frequency in response to the received signal from the sensor.
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Accused Products
Abstract
Systems and methods are provided for automatically driving and maintaining oscillation of an assembly system including a mass and a bias member (which may also be referred to as a spring or elastomeric member) at or near a resonant frequency of the assembly system. In one example, apparatus for maintaining oscillation of a moveable subassembly including a mass and a bias comprises a controller operable to receive a signal from a sensor associated with a position or motion of the subassembly, and generate a drive signal for driving the subassembly in response to the received signal from the sensor. In this manner, the controller may monitor the motion of the subassembly and adjust or modulate the driving force over time to maintain the subassembly at or near a resonant frequency. Further, in one example, the subassembly includes a resonant engine comprising a movable mirror of an illumination device.
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Citations
34 Claims
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1. Apparatus for maintaining oscillation of a moveable subassembly including a mass and a bias, the apparatus comprising:
a controller operable to; receive a signal from a sensor associated with a position or motion of the subassembly, and output a drive signal for driving the assembly at or near a resonant frequency in response to the received signal from the sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An illumination device for selectively controlling a movable mirror, the device comprising:
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a subassembly comprising a mirror and a bias; a sensor for sensing movement or motion of the subassembly and generating a signal associated therewith; a controller configured to receive the signal from the sensor and output a drive signal for driving the subassembly, wherein the controller is operable to modulate the drive signal to move the subassembly in response to the signal received from the sensor. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25)
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26. A method for controlling oscillation of a mechanical assembly, the method comprising:
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receiving a signal associated with the position or motion of a subassembly comprising a mass and a bias; and outputting a drive signal for driving the assembly in response to the received signal from the sensor, wherein the drive signal is modulated based on the received signal. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34)
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Specification