基于ICL8001G设计的准谐振模式LED驱动技术 - 模拟电源 -

图1。ICL8001G方框图

图2。ICL8001G初级控制应用电路图

EVAL-LED-ICL8001G-Bulb02演示板

EVAL-LED-ICL8001G-Bulb02 Quasi-Resonant Flyback Converter for Phase Cut Dimming with High Power Factor

The EVAL-LED-ICL8001G-Bulb02 demonstrates the single-stage flyback and PFC controller ICL8001G in an LED Bulb application. Its quasiresonant operation mode, primary side control, integrated PFC and phase-cut dimming control makes it the best in class system solution for dimmable LED bulbs.

EVAL-LED-ICL8001G-Bulb02演示板主要特性：

High, stable efficiency over wide operating range through quasiresonant operation mode

Primary side side flyback control with integrated PFC and phase-cut dimming

Energy efficient phase cut dimming

Power cell for VCC pre-charging with constant current

Built-in digital soft-start

Foldback correction and cycle-by-cycle peak current limitation

VCC over- and under-voltage lockout

Auto restart mode for short circuit protection

Adjustable latch-off mode for output overvoltage protection

Best in class system BOM for dimmable bulbs


图3。EVAL-LED-ICL8001G-Bulb02演示板外形图


图4。EVAL-LED-ICL8001G-Bulb02演示板电路
EVAL-LED-ICL8001G-Bulb02演示板材料清单（BOM）：


图5。EVAL-LED-ICL8001G-Bulb02演示板变压器电路图

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