In recent years, domestic companies have reached a level of enthusiasm for the investment in filament lamps, but from the current market acceptance, the promotion is not very optimistic. In addition to the high price and unstable safety performance, it is not easy to pass the safety regulations and become an important factor restricting the scale of promotion.
The filament lamp has a safety regulation, which depends largely on whether the design of the power supply is reasonable. In addition, from the perspective of the quality of the lighting, the quality of the driving power directly affects the quality of the filament lamp. Therefore, LED filament lamp power supply design and manufacturing technology has become one of the most critical technologies for LED filament lamps.
"At present, LED filament lamp products are mainly concentrated in 1.8-2.4W C35 candle bulbs, and 3.6-10W A60 bulbs. The space for these two types of bulbs can be used to install power is very small." Ming Microelectronics Market Director Zhao Chunbo said in the tour speech of Gaogong LED Foshan Station that if you choose to use a more powerful driver chip for integrated design, it would be more advantageous to use a smaller, non-isolated power supply.
Zhao Chunbo pointed out that the SM7313P is a high-precision and high-efficiency non-isolated LED constant current drive control chip. The chip adopts the BUCK circuit structure and works in a fixed frequency mode. It only needs to use a relatively small chip inductor to achieve 5W or less. The output of the small current high voltage scheme.
"The power board of this solution has a diameter of 15.4mm and a height of 14mm. It can be directly placed in the E14 base. No white plastic kit is needed. When the 30V/20mA filament 2 string 1 is selected, it can support the input range of 100Vac ~ 265Vac." Zhao Chunbo said The SM7313P also features LED output open-circuit protection.
The filament lamp has a safety regulation, which depends largely on whether the design of the power supply is reasonable. In addition, from the perspective of the quality of the lighting, the quality of the driving power directly affects the quality of the filament lamp. Therefore, LED filament lamp power supply design and manufacturing technology has become one of the most critical technologies for LED filament lamps.
"At present, LED filament lamp products are mainly concentrated in 1.8-2.4W C35 candle bulbs, and 3.6-10W A60 bulbs. The space for these two types of bulbs can be used to install power is very small." Ming Microelectronics Market Director Zhao Chunbo said in the tour speech of Gaogong LED Foshan Station that if you choose to use a more powerful driver chip for integrated design, it would be more advantageous to use a smaller, non-isolated power supply.
Ming Chun Electronics Marketing Director Zhao Chunbo
Zhao Chunbo pointed out that the SM7313P is a high-precision and high-efficiency non-isolated LED constant current drive control chip. The chip adopts the BUCK circuit structure and works in a fixed frequency mode. It only needs to use a relatively small chip inductor to achieve 5W or less. The output of the small current high voltage scheme.
"The power board of this solution has a diameter of 15.4mm and a height of 14mm. It can be directly placed in the E14 base. No white plastic kit is needed. When the 30V/20mA filament 2 string 1 is selected, it can support the input range of 100Vac ~ 265Vac." Zhao Chunbo said The SM7313P also features LED output open-circuit protection.
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