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

Table 6

Mdl 1 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	4068.596	2945.860	2888.466	4222.648	4152.667	4418.790	4338.818
	8322.795	8266.483	5952.463	5895.363	8532.367	8460.271	8928.695	8848.185
	12,615.171	12,558.250	9022.367	8969.501	12,932.822	12,864.213	13,533.553	13,458.395
	16,999.856	16,947.078	12,158.298	12,113.163	17,427.922	17,367.747	18,237.447	18,172.865
	21,480.923	21,436.299	15,363.154	15,328.740	22,021.820	21,974.300	23,044.732	22,995.184
	26,062.690	26,029.396	18,640.035	18,618.718	26,718.959	26,687.450	27,960.055	27,929.081
	30,749.799	30,730.022	21,992.257	21,985.717	31,524.090	31,510.932	32,988.384	32,978.486
	35,547.200	35,541.990	25,423.360	25,432.472	36,442.292	36,448.670	38,135.037	38,147.498
	40,460.214	40,469.309	28,937.143	28,961.850	41,479.016	41,504.773	43,405.717	43,440.420
	45,494.532	45,516.185	32,537.699	32,576.859	46,640.114	46,683.552	48,806.551	48,861.767
	50,656.343	50,687.008	36,229.418	36,280.652	51,931.890	51,989.501	54,344.129	54,416.229
	55,952.231	55,986.395	40,017.038	40,076.544	57,361.111	57,427.428	60,025.557	60,108.836
	61,389.370	61,419.204	43,905.687	43,968.023	62,935.171	63,002.231	65,858.507	65,944.794
	66,975.459	66,990.551	47,900.875	47,958.705	68,661.942	68,719.204	71,851.283	71,929.528
	72,718.941	70,875.766	52,008.574	50,741.645	74,550.044	72,705.949	78,012.892	76,103.018