Another important concern is the balance of currents that flow in multiple strings. We know that two or three strings of LEDs will have different combined forward voltages. The LED driver will deliver ...

This article will explain the basic operation and configuration of a simple parallel strings LED driver. Examples and illustrations are also shown for better understanding together with its advantages ...

National Semiconductor has introduced a chip for balancing current in parallel strings of lighting LEDs. Applications are expected in street lights and other high power luminairs. “Without balancing, ...

iWatt has launched the industry's first dc/dc led backlight driver to power up to 32 parallel strings of leds for direct and segment edge led tv backlighting. The mixed signal iW7032 IC features iWatt ...

LED controller with dual current regulation loops can detect faulty LEDs and provide 100:1 analogue dimming, writes Xin Qi, senior design engineer at Linear Technology. The LT3796-1 is a switching ...

[Tim] recently found himself tinkering with a cheap string of LEDs. Far from an advanced, IC-controlled addressable set, these were merely a string with LEDs of four colors that could be switched on ...

Linear constantcurrent drivers, for instance, offer low EMI, low cost, and use only a few components. Many designers favor them for low-current applications where power loss is a minor concern. If ...

White LEDs (WLED) are increasingly becoming the light source of choice for backlighting applications due to their attractiveness in power efficiency and form factor. Display solutions in portable ...

This file type includes high resolution graphics and schematics. LEDs are the most efficient way to turn an electric current into illumination. When a current flows through a diode in the forward ...

[Tim] recently found himself tinkering with a cheap string of LEDs. Far from an advanced, IC-controlled addressable set, these were merely a string with LEDs of four colors that could be switched on ...