← 返回 JSSC 论文列表JSSC 2015第5期Power Management0.35µm
A -Hopping Reconfigurable RGB LED Driver With Automatic Detection and Predictive
提出一种低成本可重构RGB LED驱动芯片，支持自动检测和快速电压跳变。
0.35µm CMOS, 198 ns/V跳变速度, 1MHz开关频率, 8.6倍能效提升
LED驱动可重构自动检测电压跳变CMOS
▸自动检测技术精确识别红绿蓝LED电压差，不受PVT变化影响
▸快速电压跳变技术实现198 ns/V切换速度，比现有方案快一个数量级
▸采用预测峰值电流控制和突发模式操作实现快速电感电流调制
Abstract
A cost-effective single-converter reconfigurable
CMOS LED driver is proposed to accurately and adaptively
bias RGB color LEDs. An automatic
detection technique is
developed to precisely detect the voltage difference between the
red and green/blue LEDs regardless of the PVT variations. The
fast
-hopping technique is also implemented to instantaneously
adjust the output voltage level, achieving 198 ns/V -hopping
speed on 0.35 µm CMOS. This is at least one order faster than the
state-of-the-arts. Pr