Lamp and illumination system and driving method thereof
AssigneeYoung Lighting Technology Inc.
InventorsChih-Hua Lin, Yu-Chin Lan
Life of this patent
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Abstract
A lamp and an illumination system and a driving method thereof are provided. The lamp includes a lighting unit, a conversion unit, and a driver. The conversion unit is capable of receiving an input pulse width modulation (PWM) signal and converting the input PWM signal into an output PWM signal, wherein a frequency of the input PWM signal and a frequency of the output PWM signal are different. The driver is coupled between the lighting unit and the conversion unit. The driver is capable of receiving the output PWM signal and generating a driving signal to drive the lighting unit according to the output PWM signal.
Claims28
A lamp, comprising:
- a lighting unit;
- a conversion unit, capable of receiving an input pulse width modulation (PWM) signal and converting the input PWM signal into an output PWM signal, wherein a frequency of the input PWM signal and a frequency of the output PWM signal are different;
- and
- a driver, coupled between the lighting unit and the conversion unit, capable of receiving the output PWM signal and generating a driving signal to drive the lighting unit according to the output PWM signal.
An illumination system, comprising:
- a dimmer, capable of providing an input pulse width modulation (PWM) signal;
- and
- a lamp, coupled to the dimmer, capable of receiving the input PWM signal and providing a light source according to an output PWM signal related to the input PWM signal, wherein a frequency of the input PWM signal and a frequency of the output PWM signal are different, and the lamp comprising:
- a lighting unit;
- a conversion unit, capable of receiving the input PWM signal and converting the input PWM signal into the output PWM signal;
- and
- a driver, coupled between the lighting unit and the conversion unit, capable of receiving the output PWM signal and generating a driving signal to drive the lighting unit according to the output PWM signal.
A method for driving a light emitting diode (LED) lamp, comprising:
- providing an input pulse width modulation (PWM) signal;
- converting the input PWM signal into an output PWM signal, wherein a frequency of the input PWM signal and a frequency of the output PWM signal are different;
- and
- generating a driving signal to drive the LED lamp according to the output PWM signal.
Dependencies are inferred from the claim text.