PULSE WIDTH MODULATION DRIVE AND METHOD FOR ORNAMENTS WITH MOVABLE COMPONENTS
First Claim
Patent Images
1. An ornament, comprising:
- a base a mobile decorative element that is movable relative to a base;
a motor having an output shaft coupled to the movable ornament such that rotation of the output shaft causes the movable ornament to move relative to the base;
a pulse width modulation controller to drive the motor; and
low friction interface means to support the decorative element relative to the base.
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Abstract
A decoration device may include a low-friction drive line and a PWM controlled motor that reduces or eliminates the gearing needed to achieve appropriate speed and torque at the motor output shaft. In preferred embodiments, the decoration device is an ornament that includes a low friction interfaces to accommodate relatively low torque output from the PWM drive motor. In certain embodiments, the PWM controller drives a motor at low speeds suitable for ornament applications.
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Citations
31 Claims
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1. An ornament, comprising:
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a base a mobile decorative element that is movable relative to a base;
a motor having an output shaft coupled to the movable ornament such that rotation of the output shaft causes the movable ornament to move relative to the base;
a pulse width modulation controller to drive the motor; and
low friction interface means to support the decorative element relative to the base. - View Dependent Claims (2, 3, 4, 5, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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6. (canceled)
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19. An ornament, comprising:
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a base a mobile decorative element that is movable relative to a base;
a motor having an output shaft coupled to the mobile decorative element such that rotation of the output shaft causes the mobile decorative element to move relative to the base;
a pulse width modulation controller to drive the motor; and
low friction interface means to support the decorative element relative to the base, wherein the interface means comprises one or more roller assemblies, each roller assembly having a surface that engages an opposing surface coupled to the base. - View Dependent Claims (20, 21, 22)
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23. An ornament, comprising:
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a base a mobile decorative element mounted on a spindle assembly that is movable relative to a base;
a motor having an output shaft mechanically coupled to the spindle assembly such that rotation of the output shaft causes the mobile decorative element to move relative to the base;
a pulse width modulation controller to drive the motor, the pulse width modulation controller outputs a pulse-width-modulated waveform that is output to the motor; and
low friction interface means for supporting the decorative element relative to the base. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31)
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Specification