Please Leave Us A Message
Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.
The need to provide higher performance and higher cost performance for LEDs has never been met, prompting the rapid adoption of LED headlamps for a variety of new models. The new LED driver IC meets these needs. It has constant current, high efficiency, wide dimming ratio range, and various protection functions to achieve system reliability. In the solution proposed in this paper, the LED driver circuit occupies a very compact, flat and high thermal footprint. By 2015, the market for...
At present, the traditional AC/DC power supply solution on the market is difficult to meet the LED lamps in the smart because of its complicated lines, large parts, large volume, high cost, and not easy to mass production and installation. Dimming applications. The reporter learned from the high-tech LED lighting exhibition site that in order to solve this problem, Shenzhen Haopan Green Integrated Technology Co., Ltd. (hereinafter referred to as “Dianpan Integration”) has been focusing on the...
Theme: Industrial Technology LED driver chip manufacturer, Microblock, recently released a 16-channel LED driver chip with intelligent power-saving, full-screen silent error detection function - MBI5037 . This chip is specially designed for long-term opening 5. Milk ED traffic display kanban, such as LED speed limit map, LED speed board, LED information screen of highway. Since the traffic screen is still in use, the display area will remain unlit for most of the time (as shown in the figure to...
With a resolution of 1,080p (1,920 x 1,080 pixels), a light intensity of more than 500 lumens on the projection surface and an extensive color scale, the full HD LED projector produces a far higher image quality than traditional devices thanks to the RAPCUR10 LED Driver from OSRAM. Moreover, the shock-resistant LEDs have a lifespan of more than 25,000 hours which means that the usual change of light sources in the projector can be dispensed with. The driver has three channels (for red, green...
As a new light source, the research of LED power driver switches and driver circuits has been in progress in recent years by major companies and research institutes. The main function of the LED drive circuit is to convert the AC voltage to a DC voltage and simultaneously complete the matching of the voltage and current of the LED. As the silicon integrated circuit power supply voltage plummets, the LED operating voltage is increasingly in the optimal range of the output voltage of the power...
- File#1 OSRAM_LED_front_projector.bmp (84.4 KB) , download : 1 Driver technology from OSRAM i ( http:// ) is integrated into the first full HD home cinema projector with an LED lighting system. RAPCUR10 LED drivers enable LED front projectors to produce razor-sharp images of unparalleled quality. With a resolution of 1,080p (1,920 x 1,080 pixels), a light intensity of more than 500 lumens on the projection surface and an extensive color scale, the full HD LED projector produces a far higher...
"High light efficiency, high cost performance" has always been the direction of the LED industry, and LED lighting products is a systematic product, and the smooth flow of "optical channels, electrical channels, hot channels" is a key factor. In the work process of LED lights, less than 20%-30% are converted into light energy, and about 70%-80% of the energy is converted into heat energy. If this part of heat energy can not be dispersed in time, it will cause the light source to burn, but also...
1. Understand the thermal resistance Rjc of the lamp bead, which can be measured or obtained by the supplier. If it is not, it is generally estimated that the temperature difference of the crust is 15-20 °C. 2. Choose an aluminum substrate or a fiberglass panel? 3. Choose thermal grease or ordinary quick-drying glue? Still nothing? 4. What heat sink material is selected? It seems that the thermal conductivity of various heat-dissipating materials varies greatly, but the main bottleneck in the...
Optimistic about the LED lighting market, not only Tongxin Electronics actively grabbed, but many other Taiwanese passive component factories have joined the LED heat sink field, and expect LED lighting market to take off in 2011, and drive the kinetic energy of related substrate shipments. Among them, the Taiwan-based film chip resistor (Chip-R) industry has been planning to expand its production capacity by the end of 2011, and the monthly production capacity will be 200,000. The companies...
A case on LpR was designed to design a heat sink for LED lights. The author puts his own unique insights into heat sink design from the perspective of bionics. The current LED lighting gives people the feeling that they are linked with new technologies, high technology, environmental protection and high-end. Most of the designs on the market are based on practical considerations, with no sense of beauty and coordination. Like this: It looks simple and rude, and the local flavor comes to the...
High-power LED driving power refers to the driving power of outdoor high-power LED lighting equipment, which is mainly used for LED street lights, tunnel lights, subway (light rail) lights, etc. It belongs to a type of switching power supply, and its function is to convert AC mains power into Direct current, while matching the voltage and current of the high-power LED. With the increasing emphasis on energy saving and emission reduction in various countries in the world, LED lighting has a huge...
At the same time as the LED shines, LED drive power supply | regulator is the protection of the development of the LED industry chain, LED power quality directly constrain the reliability of led products, therefore, in the LED industry chain gradually improved today, LED The maturity of the drive power is also crucial. As far as LED power companies are concerned, the growth rate of the high-power power supply market around 100W in 2009 will be greatly improved. LED lights sourced from about...
1. Intelligent control is one of the advantages of LED lamps, and power supply is the key to intelligent control. Smart control has the most mature conditions in LED street lighting and LED tunnel lighting applications. Intelligent control can achieve stepless control of lamp power according to road traffic density at different time periods. It not only meets application requirements, but also achieves huge energy savings. The effect can save a large amount of funds for highway authorities. The...
Switch mode dimmable LED drivers are known for their high efficiency and precise control of LED current. This type of LED driver also provides dimming, allowing end users to reduce their power consumption while creating fantastic lighting effects. 8-bit microcontroller (MCU)-based solutions provide the necessary modules for such applications, enabling communication, customization, and intelligent control. In addition, integrated core-independent peripherals provide significant flexibility...
In order to ensure that the lighting level white LED can not only be well applied, but also can obtain high efficiency, the first is to make it meet certain application conditions, and the second is to use the appropriate drive circuit to meet the requirements of the LDE working parameters. . First, the application requirements 1, the drive circuit is a special power supply for LED power supply, to have a simple circuit structure, a small footprint, and a high conversion efficiency. 2. The...
Lighting power is an important source of global energy consumption. According to calculations, China's lighting electricity consumption accounts for about 12% of the total electricity consumption in the society. Among the various lighting fixtures, the use of incandescent lamps with a long history but low energy efficiency is still very extensive. If the use of energy-efficient light sources is limited, and the use of more energy-efficient and environmentally-friendly light sources is...
Abstract: This circuit drives as many as four white LEDs in parallel from a 3.3V source, and adjusts the total LED current from 1mA to 106mA, in 64 steps of 1dB each. The circuit of Figure 1 is designed for portable-power applicaTIons that require white LEDs with adjustable, logarithmic dimming levels. It drives as many as four white LEDs from a 3.3V source, and adjusts the total LED current from 1mA to 106mA in 64 steps of 1dB each. The driver is a charge pump that mirrors the current ISET...
The price of LED bulbs is falling. A year ago, you might have to pay $50 for a 60W Philips dimmable LED light, and now go to Best Buy to buy an 8W, 800 lumens, equivalent to 60W of its own brand Insignia, for only $17. What changes in LED bulb design have driven down prices? Disassembly allows us to get a glimpse of LED lighting design trends, such as how LEDs are placed in the bulb and what drive architecture is used. The Insignia spherical lamp has a similar appearance to the energy-saving...
Editor's note: Maxim has recently introduced the MAX6977 driver family with LED fault detection. The MAX6977 serial interface LED driver provides eight open-drain, constant-current sinking, 5.5V LED driver outputs, and operates from a 3V to 5.5V supply. The MAX6977 and LED supplies can be powered up in any order, and all constant current outputs are set by an external resistor, up to 55mA each. This series of products uses 25Mb, industrial standard 4-wire serial port for control. The MAX6977...
High power LED driver light design to replace low voltage halogen lamps: LED street lights meet the general direction of “energy saving and emission reduction” and have become the focus of attention of local governments. The Ministry of Science and Technology carried out the "Ten Cities and Ten Thousand Miles" LED lighting demonstration project, and Guangdong Province proposed the "Thousands of Miles" plan and so on. The Electronic Components Technology Network understands that while local...
The MR16 lamp is a kind of multi-faceted reflector lamp. It is widely used in commercial retail and home decorative lighting. Because it usually uses halogen filament as the light source, it has many disadvantages such as low efficiency, more heat generation and halogen capsule treatment. . . . But current LED technology offers an MR16-compatible, highly reliable, cost-effective alternative to halogen lamps. For example, ON Semiconductor's CAT4201, which drives three LEDs in series, offers a...
Introduction LEDs are used more and more widely in lighting fixtures. In addition to the uniqueness of traditional lighting methods, in addition to improving the quality of life, improving the performance of light sources and extending the life of lamps, they use their unique dimming function to color and brightness the lights. The changes and fully meet the biggest advantages of energy-saving applications. led lamp with dimming performance but depends on the led light source with power and...
Power Integrations, Inc. (Nasdaq: POWI) launched the LYTSwitchTM-0 IC - LYTSwitch family of new device families on June 18, which combines simplicity, reliability and efficiency with a unique Advantage. The LYTSwitch-0 IC is ideal for cost-sensitive, non-isolated, non-dimmable GU10 bulbs and other space-constrained bulb applications. With over 90% efficiency, the LYTSwitch-0 device provides constant current output with better than +/-5% adjustment accuracy in typical applications. Its power...
Abstract: This circuit drives as many as four white LEDs in parallel from a 3.3V source, and adjusts the total LED current from 1mA to 106mA, in 64 steps of 1dB each. The circuit of Figure 1 is designed for portable-power applicaTIons that require white LEDs with adjustable, logarithmic dimming levels. It drives as many as four white LEDs from a 3.3V source, and adjusts the total LED current from 1mA to 106mA in 64 steps of 1dB each. The driver is a charge pump that mirrors the current ISET...
Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.
Fill in more information so that we can get in touch with you faster
Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.