Thursday, March 03, 2014: A successful ballast design has to be a delicate balance of a number of countervailing factors—ease of use against design complexity and cost; voltage and current control against design complexity and board space; and functionality against low power consumption.
LED ballasts or LED drivers provide LEDs with a constant source of current. A high current LED ballast forms an important part of an LED bulb.
EOS Power India has recently launched a 45 W LED ballast capable of driving an LED string at a constant current of 1.5 Amperes. Launched this January, it is available in a metal as well as plastic casing. This range caters to the demand for lighting in offices, operation theatres, cinema halls, shopping malls, residential spaces, etc.
Advanced Powertech has introduced phase cut drivers (triac dimmers) and DALI (digital addressable lighting interface) compatible drivers. This is suitable for indoor mood lighting and individual light addressing systems as well as for power saving using DALI drivers.
In January 2014, Nippon India launched the new Meanwell DAP-4, DALI-to-PWM converter for LED drivers. This new product makes the DALI control possible on LED lighting fixtures.
Moxie Devices has recently introduced the HP series of non-dimmable LED drivers ranging from 12 W to 18 W. The drivers have protection for short circuits, input over voltage, output open circuit and over temperature.
For details, read http://electronicsb2b.efytimes.com/home-page-splash/latest-led-drivers-offer-high-efficiency-and-lower-power-consumption/
