Lifetime Prediction for a Cell-on-Board (COB) Light Source Based on the Adaptive Neuro-Fuzzy Inference System (ANFIS)

Table 8

Mdl 3 output vs. LED chip lifetime.

Lifetime maintenance	1500 mA/57.3°C		1500 mA/87.5°C		1140 mA/87.4°C		1140 mA/105.5°C
	Target	Output	Target	Output	Target	Output	Target	Output
	4118.932	4047.894	2945.860	2858.584	4222.648	4114.390	4418.790	4284.867
	8322.795	7507.493	5952.463	5346.754	8532.367	7680.967	8928.695	8029.431
	12,615.171	11,950.713	9022.367	8541.899	12,932.822	12,260.853	13,533.553	12,837.402
	16,999.856	17,031.934	12,158.298	12,194.742	17,427.922	17,496.592	18,237.447	18,332.747
	21,480.923	22,156.159	15,363.154	15,876.080	22,021.820	22,772.734	23,044.732	23,867.975
	26,062.690	26,839.843	18,640.035	19,236.212	26,718.959	27,587.647	27,960.055	28,914.388
	30,749.799	31,032.743	21,992.257	22,236.295	31,524.090	31,885.171	32,988.384	33,410.210
	35,547.200	35,109.318	25,423.360	25,142.358	36,442.292	36,046.019	38,135.037	37,751.710
	40,460.214	39,600.678	28,937.143	28,333.281	41,479.016	40,612.717	43,405.717	42,505.249
	45,494.532	44,858.880	32,537.699	32,061.290	46,640.114	45,946.632	48,806.551	48,049.213
	50,656.343	50,792.038	36,229.418	36,263.670	51,931.890	51,958.486	54,344.129	54,293.395
	55,952.231	56,844.226	40,017.038	40,548.521	57,361.111	58,088.014	60,025.557	60,657.874
	61,389.370	62,304.681	43,905.687	44,413.736	62,935.171	63,617.060	65,858.507	66,398.119
	66,975.459	66,698.688	47,900.875	47,523.797	68,661.942	68,065.879	71,851.283	71,016.535
	72,718.941	69,929.003	52,008.574	49,810.105	74,550.044	71,336.352	78,012.892	73,099.388