EDN

Constant current regulation of an LED interior convenience lighting system

Convenience lighting for passengers during entry and exit is a standard feature on all modern passenger cars. The typical method of operation is to power the lighting system when a door is open, via a ...
EDN

High Efficiency Constant Current Buck Converter for LED Lighting

This is a design idea of high efficiency constant current buck converter for LED lighting using LinkSwitch-TN. It operates in an input voltage ranging from 108 VAC to132 VAC and delivers an output of ...
Electronic Design

Basics of digital LED control

Most engineers are quite familiar with typical low-power-indicator LEDs, whether they be surface-mount or the classical through-hole packages. All that's needed to use them is a voltage source and a ...
Electronic Design

Solar Constant Lighting System Uses PV-Pushback-Effect

What is the PV-Pushback-Effect? How can solar day lamps (SDLs) take advantage of this effect? Solar day lamps (SDLs) are made by simply connecting an LED array to a solar photovoltaic (PV) panel. SDLs ...
Hackaday

constant current

Controlling LEDs is really quite simple. As you know, they need to be current limited which is as easy as applying Ohm’s law to your given set of values. To make things even more even there’s a slew ...