Energy storage inductor to adjust backlight

What is a single-inductor LED backlight driver?

A single-inductor, multiple-channel current-balancing LED driver for display backlight applications. IEEE Trans. Ind. Appl. 2014, 50, 4077–4081. [Google Scholar] [CrossRef] Chen, J.-H.; Wang, S.-C.; Liu, Y.-H.; Cheng, Y.-S.; Yang, Z.-Z. RGB LED backlight driving system with dynamic voltage regulation capability.

What is a led inductor & how does it work?

Inductors are energy storage devices. Energy is stored in the inductor during the ON time and delivered to the LED during the OFF time. The rule of thumb to design the inductor is to set the peak-to-peak ripple current in the inductor to 30 percent of the nominal LED current.

How does a solar energy storage inductor work?

In this topology, the energy storage inductor is charged from two different directions which generates output AC current . This topology with two additional switching devices compared to topologies with four switching devices makes the grounding of both the grid and PV modules. Fig. 12.

Can LED backlight drivers reduce power loss caused by led forward voltage variation?

Author to whom correspondence should be addressed. An adaptive high-efficiency light-emitting Diode (LED) backlight driver scheme has been proposed to address the issue of additional power loss caused by LED forward voltage variation.

Do LED drivers need an inductor or transformer?

Most LED driver circuits need an inductor or transformer to drive the LED. Eaton has a large selection of inductors and transformers in various sizes, inductance values and current ratings to satisfy any particular LED driver circuit requirement. A buck circuit regulates input DC voltage down to a desired DC voltage (Figure 1).

What is a LED backlight driver?

A traditional LED backlight driver is primarily composed of a boost converter, parallel LED channels, and corresponding linear current regulators (LCRs). The boost converter provides sufficient voltage to turn on all LEDs in each channel, and the LCR regulates the current for each channel to control brightness [7, 8, 9].