Patent ID: 9049765
Filing Date: 2015-06-02
Classification: H05B

Abstract:
1. A light-emitting diode (LED) lighting system for driving an array of LEDs using an electronic ballast supplying alternating current, wherein the array of LEDs have a manufacturer's specification of a current value and a voltage value required for activating the array of LEDs, comprising: a first circuitry coupled to the array of LEDs and configured to convert an alternating current having a first peak-to-peak voltage into a first direct current and further configured to feed the first direct current into the array of LEDs, wherein the first circuitry comprises: (1) a first set of capacitors configured to convert the alternating current having the first peak-to-peak voltage to a modified alternating current having a reduced peak-to-peak voltage based on the manufacturer's specification for LEDs in the array of LEDs, and (2) at least one full-wave rectifier configured to convert the alternating current with the reduced peak-to-peak voltage to the first direct current; a second circuitry coupled to the array of LEDs and configured to convert an alternating current having a second peak-to-peak voltage into a second direct current and further configured to feed the second direct current into the array of LEDs; and a switching circuitry configured to switch an input alternating current between the first circuitry and the second circuitry based on a peak-to-peak voltage of the input alternating current.