Digital Fuzzy Current Controlled Light-Emitting Diode Driver with Power Factor Correction

Table 8

Comparisons of existing controllers and the proposed controller.

Controllers	Specification parameter
	Power factor (PF)	Total harmonic distortion (%THD)
Fixed-frequency constant-current control [18]	0.970	27.5%
QR valley-switching scheme [21]	0.93	23%
Conventional current control [15]	0.96	28%
Proposed	0.987	3.51