NoelectrolyticcapacitordriveletLEDlamplifelonger.doc

No electrolytic capacitor drive let LED lamp life longer

Exempt from electrolytic capacitor adjustable light light emitting diodes (200W led floodlight) driver started in the market come to the fore. In a major breakthrough in the technology has been, without a recent electrolytic and capacitance adjustable light led drive scheme has been released, will help to further improve the led lamps and lanterns service life and reduce led drive the whole bill of material (BOM) cost.

Quick technical marketing director YanZongFu said, no electrolytic capacitor adjustable light 200W led floodlight drive not only can improve the service life and efficiency, but also can reduce 200W led floodlight drive size and cost.

Quick (Fairchild) technology marketing director YanZongFu said that as countries banned and JinChan incandescent lamp in law to take effect, is expected to drive the 30 tile the following led bulbs instead of traditional incandescent lamps and halogen lamp needs; To increase the service life of 200W led floodlight light bulb with efficiency, 200W led floodlight lamps and lanterns system developers have requirements, 200W led floodlight driver must conform to the international electrotechnical commission (IEC) harmonic current EN61000 standard for power factor correction (PFC) requirements. Without electrolytic capacitor adjustable 200W led floodlight drive, is this a standard to the best way.

YanZongFu further analysis, the led lighting lamps and lanterns should be as high as 80 ~ 100 ℃ temperature operation, but the electrolytic capacitor under high temperature, easy to dry the working life can't more than thousands of hours, if adopt built-in electrolysis, capacitance adjustable optical drive, will cause the led lighting lamps and lanterns life greatly attenuation. Therefore, dispense with electrolytic and capacitance adjustable light 200W led floodlight drive plan, has been committed to the development of power semiconductor manufacturers products, but a high threshold technology, progress is relatively slow.

However, since the second half of 2011, semiconductor industry has also started to breach the technical bottleneck, including Maxim, quickly and so on the semiconductor companies have been launched in succession without electrolytic and capacitance adjustable light 200W led floodlight drive scheme. YanZongFu points out, quick launched the isolation and isolation adjustable light 200W led floodlight drive, all free electrolytic capacitor, the difference is that the isolation by dropping type structure, and isolation, the use of the reverse chi type structure collocation fast patent IC circuit technology TRUECURRENT Calculation, in order to achieve accurate constant current/control of plus or minus 5%, thereby improve the PFC.

Quick technical Marketing Department senior managers LinQian yuan stressed that at present most of the industry by reverse chi type structure development isolation adjustable optical drive, but to reach no electrolytic capacitor, the biggest challenge is to IC internal design; And quickly through the patent IC circuit technology overcome technical drawing, become the industry a few can supply no electrolytic and capacitance isolation adjustable light 200W led floodlight drive supplier.
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