高功率因数的90W LED路灯驱动电源设计

Design of High Power Factor 90W LED Street Lamp Driver

从产品设计角度出发,较为详细的介绍了NXP的SSL1750T芯片特点及工作原理,以及基于该控制芯片的大功率LED驱动电源的设计方法,其中重点阐述了PFC电感和反激变压器的设计。最后给出了一款基于SSL1750T设计的LED路灯驱动电源的工程实例,用实测数据和波形来证明该设计方法的实用性。

From the perspective of product design, the characteristics and working principle of chip, SSL1750 T of NXP, are introduced in detail. The design method of high power LED driver based on the chip, especially the design of the PFC inductor and fly-back transformer, are detailed. At last, an actual case of LED street-lamp driver design based on SSL1750 T is given. Practicability of the design method is certified by the actual test data and waveform.