Chapter 5
Buck-Based LED Drivers
Abstract
This chapter describes switching buck (step-down) regulators. These include synchronous and asynchronous switching, also hysteretic, peak current, and average current control schemes. Design examples are given for a common type of controller. Dimming techniques are described, including triac dimming. A double-buck circuit is also described.
Keywords
dimming
buck
double buck
triac
synchronous
asynchronous
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