[Text/High- tech LED reporter Liu Pingping] "This exhibition will showcase the high-order segmentation (12-segment) constant-current stroboscopic LED driver IC with the most technological innovation and the most competitive optical module integration. The plan.†Chen Hengyu, general manager of Dianpan Green Integrated Technology Co., Ltd. (hereinafter referred to as “Dianyu Technologyâ€) said.
Since its establishment, Suihua Technology has brought together outstanding technical experts and teams from the domestic and international microelectronics industry, focusing on the development of chips, system integration and applications, aiming to provide customers with self-developed chips and comprehensive system solutions.
Based on the development trend of the driver IC market and technological innovation, the company has developed a high-voltage segmented constant current LED driver IC that has been awarded a number of invention patents, which is the first time in the industry to increase the power of the constant current drive to 25W, leading the industry in integrated optoelectronic module applications. At present, the R&D project has won a special fund for the development of a new generation of information technology industry in Shenzhen (2013).
Since the high-voltage linear constant current LED driver eliminates electrolytic capacitors and high-frequency inductors, the comparative switching power supply has inherent advantages such as low cost, convenient production and installation, no EMI interference, long lamp life, and simple intelligent dimming. The high hopes of the lighting switch power supply.
However, after the development of early resistance-reducing step-down linear constant current and later single-switch linear constant current and piecewise linear constant current, the high-voltage linear constant current scheme on the market currently has certain performance indicators and switching power supplies. The gap is completely unable to shoulder this heavy responsibility, and even for synonymous with low-end solutions.
“Taking the four-stage linear constant current scheme commonly used in the market as an example, the luminaire efficiency is generally below 85%, and the single IC can drive up to 9W applications. At the same time, there will be problems such as 100Hz strobe and low wick utilization.†It is said that the SDS3108 series high-order segmented constant current chip that will be launched at this exhibition will completely solve the above bottleneck.
This chip combines the patented technologies of “high-order segmentationâ€, “dynamic configuration†and “capacitor valley filling†independently developed by Suihua Technology. Based on the inherent advantages of high-voltage linear constant current, the power supply indicators are improved. To even exceed the level of the switching power supply, and completely overcome the problem of 100Hz strobe and low wick utilization, it provides a true switch-off power solution for LED lamps.
"For the most common 18W fluorescent lamp application, for example, the SDS3108 can directly drive 84 2835 wicks with a power efficiency >90%, luminaire efficacy >110lm/W, PF>0.85, stroboscopic depth <10%, 90~260V Voltage working range."
According to Chen Hengyu, the "high-order segmentation" technology adopts a control scheme in which N-type switches and P-type switches cooperate with each other, and realizes twelve-segment linear constant current drive with only a small cost cost, and heat dissipation power. Compared with the four-stage linear constant current chip, the power consumption is reduced by 60%, and the power efficiency is up to a record of 93%, which provides a solid platform for the application of "dynamic configuration" and "capacitor filling" technologies.
The "dynamic configuration" technology changes the series structure of the LED light string to a parallel structure when the full-wave rectification voltage is low, which solves the problem of low utilization of the LED wick. The "capacitor-filling" technique is applied to the full wave by applying a 1uF chip capacitor. The LED light string is powered near the rectified zero voltage, which solves the 100Hz strobo problem. The combination of “dynamic configuration†and “capacitor-filling†technology achieves a constant output power of the power supply during the full cycle of full-wave rectification, thus completely solving the ills of high-frequency linear constant current scheme with deep strobe and low utilization of wick.
"SDS3108 series chips integrate functional modules such as "dynamic configuration", "capacitor valley filling" and intelligent dimming interface on the "high-order segmentation" platform. Each module can work independently and be flexibly stacked. Users can flexibly select functions according to the application. The combination of modules and peripheral circuits to achieve an optimal cost-effective drive solution."
Since its establishment, Suihua Technology has brought together outstanding technical experts and teams from the domestic and international microelectronics industry, focusing on the development of chips, system integration and applications, aiming to provide customers with self-developed chips and comprehensive system solutions.
Based on the development trend of the driver IC market and technological innovation, the company has developed a high-voltage segmented constant current LED driver IC that has been awarded a number of invention patents, which is the first time in the industry to increase the power of the constant current drive to 25W, leading the industry in integrated optoelectronic module applications. At present, the R&D project has won a special fund for the development of a new generation of information technology industry in Shenzhen (2013).
Since the high-voltage linear constant current LED driver eliminates electrolytic capacitors and high-frequency inductors, the comparative switching power supply has inherent advantages such as low cost, convenient production and installation, no EMI interference, long lamp life, and simple intelligent dimming. The high hopes of the lighting switch power supply.
However, after the development of early resistance-reducing step-down linear constant current and later single-switch linear constant current and piecewise linear constant current, the high-voltage linear constant current scheme on the market currently has certain performance indicators and switching power supplies. The gap is completely unable to shoulder this heavy responsibility, and even for synonymous with low-end solutions.
“Taking the four-stage linear constant current scheme commonly used in the market as an example, the luminaire efficiency is generally below 85%, and the single IC can drive up to 9W applications. At the same time, there will be problems such as 100Hz strobe and low wick utilization.†It is said that the SDS3108 series high-order segmented constant current chip that will be launched at this exhibition will completely solve the above bottleneck.
This chip combines the patented technologies of “high-order segmentationâ€, “dynamic configuration†and “capacitor valley filling†independently developed by Suihua Technology. Based on the inherent advantages of high-voltage linear constant current, the power supply indicators are improved. To even exceed the level of the switching power supply, and completely overcome the problem of 100Hz strobe and low wick utilization, it provides a true switch-off power solution for LED lamps.
(SDS3108 high-order segmentation (12-segment) constant current stroboscopic LED driver IC)
"For the most common 18W fluorescent lamp application, for example, the SDS3108 can directly drive 84 2835 wicks with a power efficiency >90%, luminaire efficacy >110lm/W, PF>0.85, stroboscopic depth <10%, 90~260V Voltage working range."
According to Chen Hengyu, the "high-order segmentation" technology adopts a control scheme in which N-type switches and P-type switches cooperate with each other, and realizes twelve-segment linear constant current drive with only a small cost cost, and heat dissipation power. Compared with the four-stage linear constant current chip, the power consumption is reduced by 60%, and the power efficiency is up to a record of 93%, which provides a solid platform for the application of "dynamic configuration" and "capacitor filling" technologies.
The "dynamic configuration" technology changes the series structure of the LED light string to a parallel structure when the full-wave rectification voltage is low, which solves the problem of low utilization of the LED wick. The "capacitor-filling" technique is applied to the full wave by applying a 1uF chip capacitor. The LED light string is powered near the rectified zero voltage, which solves the 100Hz strobo problem. The combination of “dynamic configuration†and “capacitor-filling†technology achieves a constant output power of the power supply during the full cycle of full-wave rectification, thus completely solving the ills of high-frequency linear constant current scheme with deep strobe and low utilization of wick.
"SDS3108 series chips integrate functional modules such as "dynamic configuration", "capacitor valley filling" and intelligent dimming interface on the "high-order segmentation" platform. Each module can work independently and be flexibly stacked. Users can flexibly select functions according to the application. The combination of modules and peripheral circuits to achieve an optimal cost-effective drive solution."
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