METHOD AND SYSTEM FOR DRIVING LED
First Claim
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1. An LED driving method, comprising:
- generating a PWM control signal with a PWM dimming signal; and
controlling a PWM DC/DC converter with the PWM control signal, so as to generate a driving voltage of the LED.
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Abstract
The present invention discloses an LED driving method and an LED driving system, the method comprising: generating a PWM control signal with a PWM dimming signal; and controlling a PWM DC/DC converter with the PWM control signal, so as to generate a driving voltage of the LED.
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Citations
8 Claims
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1. An LED driving method, comprising:
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generating a PWM control signal with a PWM dimming signal; and controlling a PWM DC/DC converter with the PWM control signal, so as to generate a driving voltage of the LED. - View Dependent Claims (2, 3)
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4. An LED driving system, comprising:
- a PWM DC/DC converter (1310), a PWM controller (1320) and a PWM dimming signal generating unit (1330);
wherein;the PWM dimming signal generating unit (1330) is configured to generate a PWM dimming signal; the PWM controller (1320) is configured to generate a PWM control signal by utilizing the PWM dimming signal; and the PWM DC/DC converter (1310) is configured to generate a driving voltage of LED according to the PWM control signal. - View Dependent Claims (5, 6, 7, 8)
- a PWM DC/DC converter (1310), a PWM controller (1320) and a PWM dimming signal generating unit (1330);
Specification