Hybrid Switching/Linear Method Yields LED-Current Controller with Wide Dimming Ratio (.PDF Download)

Aug. 9, 2016

Many applications for LED illumination require wide dimming ratios, which can be easily done using an adjustable current source. The current source can be adjusted over a large LED current range using several different techniques. The primary problem with this technique is that the power dissipation can be quite high...

Register or Sign in below to download the full article in .PDF format, including high-resolution graphics and schematics when applicable.

Sponsored

The flyback topology is a versatile, widely used, switched-mode power-supply design with some interesting characteristics that brings performance and BOM advantages to many applications...
Stricter guidelines imposed by version 3 of the IEC standard for harmonic current emissions push designers to embrace power-factor-correction methodologies.
Significant complications arise when trying to get your power supply working from a wall outlet.
High output current, also referred to as Iout, might be an important spec for your low-dropout (LDO) linear regulator.