PULSE WIDTH MODULATION BASED LED DIMMER CONTROL
专利汇可以提供PULSE WIDTH MODULATION BASED LED DIMMER CONTROL专利检索，专利查询，专利分析的服务。并且Methods and apparatus for implementing and operating pulse width modulation based LED dimmer controllers are described. A synchronization protocol is used to allow control information for the dimmer operations to be transferred to the PWM dimmer control clock domain from an external clock domain, such that visual artifacts are prevented when the control information is updated. Control information may be transferred to the LED dimmer controller via an I2C serial bus, and the synchronization protocol waits for an I2C STOP condition before updating control information across clock domain boundaries. The leading and trailing edges of an asserted group dimmer control signal are generated such that the active portion of the group dimmer control signal overlaps the active portion of individual LED pulse width modulated control signals. In this way, the pulse width modulation of the individual LED control signals is not cut off, or reduced in width by the group dimmer signal.，下面是PULSE WIDTH MODULATION BASED LED DIMMER CONTROL专利的具体信息内容。
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