Invention Grant
US08384307B2 Continuous step driver 失效
连续步进驱动

Continuous step driver
Abstract:
A light emitting diode (LED) lamp includes an LED cluster including LED groups arranged in series, a power source configured to provide an input power to the LED cluster, and a driving unit configured to adjust a number of the LED groups connected to a current path of the LED cluster in series based on the input power to the LED cluster.
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