Led light engine

Abstract

An integrated Light Emitting Diode (LED) device including multiple LEDs connected to a circuit board, integrated circuit (IC) drivers connected to the circuit board, and a first alternating current (AC) terminal and a second AC terminal connected to the circuit board.

1 .- 22 . (canceled) 
     
     
         23 . An integrated Light Emitting Diode (LED) device comprising:
 a plurality of LEDs coupled to a circuit board;   a first alternating current (AC) terminal and a second AC terminal coupled to the circuit board, the first and second AC terminals connected directly to a line voltage without an external power supply;   one or more constant current sources connected to the first AC terminal and providing constant current to the plurality of LEDs over a range of voltage; and   at least one total harmonic distortion of current (THDi) circuit less than 20%.   
     
     
         24 . The integrated LED device of  claim 23 , further comprising a dimming circuit. 
     
     
         25 . The integrated LED device of  claim 23 , wherein the circuit board is wire bonded. 
     
     
         26 . The integrated LED device of  claim 23 , wherein the plurality of LEDs are treated with phosphor deposition and encapsulated. 
     
     
         27 . The integrated LED device of  claim 23 , wherein the line voltage is 120V. 
     
     
         28 . The integrated LED device of  claim 23 , wherein the plurality of LED IC drivers are temperature compensated. 
     
     
         29 . The integrated LED device of  claim 23 , wherein the circuit board has a metal core. 
     
     
         30 . A Light Emitting Diode (LED) system comprising:
 a plurality of integrated circuit (IC) boards coupled to one another, each of the plurality of IC boards comprising:
 a plurality of LEDs coupled to each IC board; 
 a first pair of alternating current (AC) terminals and a second pair of AC terminals coupled to each IC board, the first and second AC terminals connected directly to a line voltage without an external power supply; and, 
 one or more constant current sources connected to the first AC terminal and providing constant current to the plurality of LEDs over a range of voltage, 
   
       wherein:
 a second pair of AC terminals of a first IC board couples with a first pair of AC terminals of a second IC board; 
 each IC board further comprising at least one total harmonic distortion of current (THDi) circuit, 
 wherein the LED system is directly coupled to a line voltage without an external power supply. 
 
     
     
         31 . The LED system of  claim 30 , wherein THDi of the system is less than 20%. 
     
     
         32 . The LED system of  claim 30 , wherein each IC board further comprising at least one dimming circuit. 
     
     
         33 . The LED system of  claim 30 , wherein each IC board is wire bonded. 
     
     
         34 . The LED system of  claim 30 , wherein the plurality of LEDs are treated with phosphor deposition and encapsulated. 
     
     
         35 . The LED system of  claim 30 , wherein the line voltage is 120V. 
     
     
         36 . The LED system of  claim 30 , wherein the plurality of LED IC drivers are temperature compensated.