Patent ID: 7847487
Filing Date: 2010-12-07
Classification: H05B

Abstract:
1. An LED lighting device comprising: a plurality of LED arrays that are connected in parallel; wherein said plurality of LED arrays all have the same configuration in which a plurality of components including at least two LED blocks are connected in series; elements having a bidirectional breakdown voltage are connected between pairs of connection points having the same order in two respective LED arrays, each of the connection points connecting two of the plurality of components, at least one of which is one of the LED blocks; the elements having the bidirectional breakdown voltage are arranged such no current flows through the elements having the bidirectional breakdown voltage when the plurality of LED arrays are operating properly and current flows through the elements having the bidirectional breakdown voltage when a disconnection failure occurs in one of the plurality of LED arrays; at least one of the plurality of components included in each of the plurality of LED arrays is a capacitor; and each of the LED blocks includes at least two LEDs connected in parallel in opposite directions.