Patent ID: 7808189

Claim:
An LED circuit arrangement comprising: an AC voltage source; a first multichip LED comprising on a first substrate, a first pair of radiation-emitting LED chips and a third radiation-emitting LED chip; and a second multichip LED comprising on a second substrate, a second pair of radiation-emitting LED chips and a sixth radiation-emitting LED chip; wherein the first and second multichip LEDs are coupled to each other so that the first and second pairs of radiation-emitting LED chips are configured to form a bridge rectifier coupled to the AC voltage source; wherein the third and sixth radiation-emitting LED chips are configured to form a load of the bridge rectifier; wherein the bridge rectifier is configured so that one of the first pair of radiation-emitting LED chips and one of the second pair of radiation-emitting LED chips are forward-biased for one half-wave of AC voltage from the AC voltage source, and the other of the first pair of radiation-emitting LED chips and the other of the second pair of radiation-emitting LED chips are forward-biased for the other half-wave of AC voltage from the AC voltage source; and wherein the third and sixth radiation-emitting LED chips are forward biased for both half-waves of the AC voltage from the AC voltage source.