DimmingRatio

2022年5月24日 — The dimming ratio (also referred to as the contrast ratio) is the ratio between the PWM period and the minimum duty time manageable by the DC-DC ...

2019年11月27日 — Part Number: LP8867-Q1 Hello, The maximam dimming ratio is somehow recommended up to 10,000:1 for 100Hz PWM, while the minimum off time is 0.5us ...

2018年7月17日 — My problem here is how to arrive to the fraction 1ton. Is it defined as the ratio between the maximum duty cycle (DC) and the minimum? If Dmax=( ...

由 PR Surkanti 著作 · 2013 · 被引用 4 次 — Abstract: A high-efficiency, high-dimming ratio LED driver, capable of driving two standard white LEDs in series, is presented in this paper.

2016年6月30日 — ... Dimming)與模擬調光(Analog Dimming) ... 這種脈波寬度的調光方式，是改變脈波導通周期的大小，可以達到1000:1的調光周期(dimming ratio)，所以具有較佳的 ...

Automotive LED drivers must have a high dimming ratio and increased accuracy to correctly reproduce color and provide low noise to avoid interference with the ...

It uses a hybrid approach where a switching regulator holds the voltage across an adjustable current source constant, and puts the LED voltage inside a feedback ...

2018年5月3日 — The dimming ratio can vary from 10 to 1 to up to 250 to one.