A modification of the current-control circuit in a low-voltage LED system allows use of a chopped supply voltage to modulate the LED intensity. The circuit prevents inrush current to the decoupling ...
UK company Verdi Semiconductor has designed two power technologies specifically for the LED lighting industry. One is RAIS (pronounced ‘raise’), a novel single-stage mains power supply for one or more ...
Dimmable LED drivers have stability problems at very low light levels. This article will examine the reasons and propose a solution to the problem. It will not cover triac dimming since instability at ...
Maxim has introduced an off line LED driver claimed to provides flicker-free dimming from maximum brightness to zero with most leading-edge (triac) and trailing-edge (transistor) dimmers. Aimed at ...
In [Big Clive]’s recent grab bag of tat ordered from Chinese commerce platforms, there were two touch light control boxes ...
Frank Hertel’s project: three individually dimmable LED lights. (Frank is the master of recycling; the wooden mounting pedestals are the panels from a decommissioned ATI console!) Thanks for your ...
Fig. 1: The dimmer circuit schematic showing the filtering capacitors. Rob Atkinson, K5UJ, is an engineer out of Saint Charles, Ill., and one of the many readers who enjoy the DIY projects we feature ...
As their production costs fall, LEDs are being used more often in applications ranging from handheld devices to automotive and architectural lighting. Their high reliability (operational lifetimes of ...
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