For general illumination of the LED driver IC leader in the field of Power Integrations, Inc. today announced the release of a new 25 W LED T8 bulb ballast power supply reference design. The design (T8 bulb) The most striking is that efficiency of over 91%, achieving industry leading level, while the power factor (PF greater than 0.9 ) and harmonic distortion (EN61000-3-2 Class C) areas to meet commercial requirements.
T8 bulb is
using LinkSwitch-PH family of LED driver IC designed LNK409EG single
stage converter. Single-stage technology by eliminating the conventional
two-stage design used in optical isolators and large aluminum
electrolytic capacitors can greatly extend the life of the product.
Integrations, product marketing manager Andrew Smith said: "The
lighting in improving the overall luminous efficiency, achieve high
power conversion efficiency and LED choices are equally important, if
not a single-stage topology, in the narrow space T8 lamps in a cost
-effective way to maximize efficiency above 88% is extremely difficult
thing, while the efficiency of the design was easily more than
91%."Smith added: "Most areas require commercial and industrial lighting
products must have low THD or high PF - LinkSwitch-PH LED driver IC can
easily meet the requirements of this specification, so that the final
design for the global market. More information, see this new designs
paradigm report. "
addition to using the controller, drives, and switching MOSFET
simultaneously integrated into a single package within a highly
integrated single-chip design outside, Power Integrations' LinkSwitch-PH
product line also includes thermal protection and over-current
protection, including many protection functions. This means that only
very few external components to achieve design plan - which for T8 lamps
compact space is extremely important.