Patent ID: 9480114
Filing Date: 2016-10-25
CPC Classification: H05B,Y02B

Claim Text:
1. An alternating current (AC) light emitting diode (LED) lighting apparatus, comprising: a rectification unit configured to receive an AC voltage and output a direct current (DC) rectified voltage; an LED unit connected to the rectification unit, the LED unit comprising at least two light emitting groups, each light emitting group comprising at least one LED; and an LED driving control unit connected to the rectification unit, the LED driving control unit configured to establish a series or parallel connection between the light emitting groups, by comparing a voltage level of the rectified voltage with a reference voltage, wherein the LED driving control unit is configured to: wherein the reference voltage adjustment value is in a range of greater than a minimum reference voltage adjustment value to less than a maximum reference voltage adjustment value; and wherein the minimum reference voltage adjustment value is set as the reference voltage adjustment value when the variation of the rectified voltage is less than the minimum reference voltage adjustment value; and wherein the maximum reference voltage adjustment value is set as the reference voltage adjustment value when the variation of the rectified voltage is greater than the maximum reference voltage adjustment value.