Patent ID: 7429834
Filing Date: 2008-09-30
Classification: G09G,H05B

Abstract:
1. A light structure, comprising: a. a single driver electrically connectable to a DC power supply for converting a DC voltage to an AC voltage; b. a transformer comprising a primary coil having a first end and a second end and a secondary coil having a first end and a second end, wherein the first end and the second end of the primary coil are electrically coupled to the single driver for receiving the AC voltage, and the second end of the secondary coil is electrically coupled to ground, and wherein the primary coil and secondary coil are electromagnetically coupled to each other and so arranged that when the AC voltage from the single driver is applied to the first end and the second end of the primary coil, an output voltage is generated between the first end and the second end of the secondary coil; c. an lamp module having N lamps, L d. a current regulator module electronically coupled to the N lamps through the second terminals {T e. a digital controller in communication with the current regulator and for receiving a voltage reference signal and providing a corresponding control voltage to the current regulator module to drive the current regulator module to regulate at least one of the currents {I