Dimmable light-emitting diode ( LED ) drivers that eliminate electrolytic capacitors are beginning to emerge in the market. Under the major breakthrough in technology, the recent dimmable LED driver solution for electroless capacitors has been competing, which will further improve the service life of LED lamps and reduce the overall bill of materials (BOM) cost of LED drivers .
Yan Zongfu, director of fast technology marketing, said that the electroless capacitor Dimmable LED Driver not only improves the service life and efficiency, but also reduces the size and cost of the LED driver.
Yan Zongfu, director of technology marketing at Fairchild, said that with the ban on incandescent and banned incandescent lamps, the LED bulbs below 30 watts are expected to replace the demand for traditional incandescent and halogen lamps; to increase the service life and efficiency of LED bulbs. LED lighting system developers have requested that LED drivers comply with the requirements of the International Electrotechnical Commission (IEC) harmonic current specification EN61000 for power factor correction (PFC). The adjustable LED driver with no electrolytic capacitor is the best way to achieve this standard.
Yan Zongfu further analyzed that LED lighting fixtures must operate at temperatures as high as 80-100 °C. However, electrolysis and capacitors are easy to dry at high temperatures, resulting in a working life of no more than several thousand hours. If a built-in electrolytic and capacitive dimmable driver is used, Lead to a significant decline in the life of LED lighting. Therefore, the dimmable LED driver solution that eliminates electrolysis and capacitance has always been a product developed by power semiconductor manufacturers, but the technical threshold is high and progress is slow.
However, since the second half of 2011, the semiconductor industry has also gradually broken through the technical bottlenecks, including semiconductor manufacturers such as Maxim and Express, which have introduced dimmable and capacitor dimmable LED driver solutions. Yan Zongfu pointed out that the fast-release non-isolated and isolated dimmable LED drivers are free of electrolytic capacitors. The difference between the two is that the non-isolated type uses a buck architecture, while the isolated type uses a reverse-chirping architecture with a fast patented IC circuit technology TRUECURRENT Calculation to achieve accurate constant current / control of ± 5%, thereby improving PFC.
Lin Yiyuan, senior manager of the Fast Technology Marketing Department, stressed that most of the industry currently uses the anti-chirping architecture to develop isolated dimmable drivers. However, to achieve electroless and capacitive, the biggest challenge lies in the design of the IC; Technology overcomes technical barriers and has become one of the few suppliers of isolated dimmable LED drivers that can supply electroless capacitors.
MOSO dimmable LED Driver is designed for various types of exterior or industrial LED lighting, including LED roadway lighting, LED street lighting, LED flood lighting, LED highbay lighting, LED high mast lighting, LED architecture lighting, etc. The driver is compliant to all 0~10V and PWM dimming controllers, dimming systems, and smart control systems.
All dimmable LED Drivers comes with compact size and IP67 protection. So the same driver can be used for independent or built-in a waterproof power supply chamber. There is no limitation of the IP rating of the luminaire housing.
The Progrdimmable LED Driver operates in constant current model. There are two types dimmable LED drivers available in MOSO: 1) Programmable Dimmable LED Driver, or constant current dimmable LED driver.
A programmable dimmable LED driver can be monitored by an infrared-based programming device, to deliver different output current and voltage values to LED modules. With one driver, you can use it for different light fixture designs. The fully programmed drivers offer all dimming options (0-10V/PWM/Timing
control/DALI) and a wide range of output current in a single driver, which
deliver maximum flexibility with customized operating settings and intelligent
control options for lighting manufacturers. The Programmable dimmable LED drivers obtained many global safety certifications,
including UL, CE, TUV, ENEC, CB, SAA, BIS, KC, etc, they are compatible with the safety regulations
in different countries.
A constant current dimmable LED driver will only deliver fixed output current, you are not able to change the Iout like a programmable driver. The driver is competible with 0-10V / PWM / DALI dimming prootcols.
The compact metal case and high efficiency enables the power supply to operating with high reliability, and extending product lifetime to at least 50,000 hours. Overall protection is provided against lightening surge, output over voltage, short circuit, and over temperature, to ensure low failure rate.
MOSO grants the product with 5 years global warranty. Customer can refer to Warranty policy, find the closest MOSO distributors or sales representatives, to get a local replacement in case of any failure.
Dimmable LED Driver
Dimmable LED Driver,Dimmable LED Lighting Driver,Dimmable Slim LED Driver,Dimmable Tunnel Light LED Driver
Moso Electronics , https://www.mosoleddriver.com