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Power Supplies for LED Driving, 2nd Edition by Steve Winder

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Chapter 16

Control Systems

Abstract

Chapter 16 discusses dimming control systems, both linear and digital. Linear systems include 1–10 V analog voltage and triac dimming. Digital systems include DALI, DMX, LIN bus, and CAN bus. The digital systems provide the pulse width modulation dimming signal to the constant current LED drivers. Wireless systems using Bluetooth or Wi-Fi are also possible.

Keywords

dimming
pulse width modulation (PWM)
1–10 V
triac
Wi-Fi
DALI
DMX
LIN bus
CAN bus
The original lighting control systems were analog: Triac phase dimmers and 1–10 V linear dimming. These have been obsoleted in many places ...

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