After the Third Plenary Session of the 18th Central Committee, energy conservation and environmental protection have become a major focus of creating an "upgraded version" of the Chinese economy. Environmental protection requirements are becoming more and more urgent, which means a challenge for the LED companies. For the forerunners, the new rules of the game may be even more opportunities.
In order to meet the challenges posed by the market, as a leading power management IC design company, Taiwan Richtek has also conducted long-term R & D and accumulation of complete LED power solutions, committed to providing diversified and competitive LED industry customers Power IC products. Recently, Richtek and its market partner, General Assembly Cloud, together with more than a thousand electronic R & D engineers here, shared the latest progress of Richtek in the field of LED lighting in the banquet hall of Marco Polo Shenzhen, Shenzhen. And product information, caused a great response in the industry.
Many guests on site
Richtek's product manager Mr. Liao Guangbin said at the scene, "Currently Richtek has a variety of driving solutions for LED products, including AC / DC LED drivers, intelligent dimming, linear LED drivers, DC / DC LED drivers and advanced MR- 16 solutions. In terms of AC / DC LED drivers, Richtek has AC input isolated products and AC input non-isolated products, such as RT7302, RT7304, and RT8458A / RT8468A solutions for small bulbs that do not require high power factor and small The bulb does not require a high power factor, but requires an isolated RT8458A / RT8468A solution. "
In addition, according to reporters, Richtek's AC / CC high power factor dual power supply RT7300 + RT845 can be used in various types of LED lighting products that require high performance. Its advantage lies in the high efficiency of dual power supply applications. High, low output current ripple, universal input LED current is very accurate, power factor is very high and total harmonic distortion is low, supports a wide range of output voltage modules, supports no-load protection.
In terms of linear LED drive solutions, Richtek introduced the RT7320 programmable current regulator and LED driver, which are designed for non-high power factor (PF) applications or applications with additional 7-10 ohm resistors and PF> 0.7, The operating voltage range is wide, covering 110VAC, 220VAC or lower voltage direct current. RT7320 has no output current ripple to avoid black stripes on digital video equipment. RT7320 is a simple programmable LED current, without any extra components, and has thermal balance protection, no power delay, and no electromagnetic interference (EMI) problems.
RT7321 / A (2P2S) multi-layer column linear LED driver, which is also a linear LED driving solution, is Richtek's patent. The RT7321's rated input piezoelectric is 220V AC, and the RT7321A's rated input voltage is 110V AC. The RT7321 has a simple structure, no capacitance, and a high power factor of> 0.9. Compared with a pure serial solution, the LED utilization rate is about 16% higher (16% of LEDs can be saved).
In short, Richtek's linear LED drive solution achieves the smallest size and high reliability at the lowest system cost, and is easy to design and easy to produce.
In terms of DC / CC LED drivers, Richtek products include RT8463 and RT8462 solutions. RT8463 can be applied to GPS, portable DVD backlight, desk lamp and indoor lamp, industrial display backlight. RT8462 is used in general industrial high-power LED lighting, table lamps and indoor lamps, architectural lighting, street lamps and industrial display backlighting.
Taiwan Richtek Technology: Mr. Liao Guangbin
In order to solve the problem of lamp flash, Mr. Liao Guangbin also gave an in-depth explanation. The electronic transformer (ET) was originally designed for halogen lamps (25-50W). When halogen lamps are replaced with LED lamps (5-10W), incompatibility may occur. , Causing the lights to flicker. Richtek provides advanced LEDIC drivers to help customers design first-class MR-16 alternative LED lamps. MR-16 intelligent LED drivers can control the input current of LED lamps to ensure that the transformer works normally without flickering lights.
The most representative of these is the low-cost, low-power MR-16 solution: RT8470. The main feature of RT8470 is the lowest cost, the smallest PCB size, single-phase buck converter, suitable for 1/2/3 LEDs output power up to 4W, and the compatibility of electronic transformer is about 80%.
The proportion of intelligent dimming of LED lamps in commercial lighting has rapidly increased. Richtek has insights into market opportunities and has introduced smart dimming related LED smart lighting solutions, which can use a variety of standard driver modules to match different smart dimming methods such as WIFI, SSID, infrared and so on. Such as AC / CC PWM / analog dimming-RT7300 + RT8462 can be used in bulb lamps, downlights, light bars, wireless dimming, to meet the high requirements of LED lamps PWM or linear dimming performance.
Engineers consult with RICHTEK technicians
It is worth mentioning that this time Richtek also made a DEMO display of LED lights on the spot, which attracted a lot of engineers to understand. If you are not able to rush to the site that day and are interested in Richtek ’s optoelectronic products, you can log in to Richtek ’s market partner, Dalianda Cloud ’s website: to learn more about the activities of the day, it is worth mentioning Yes, there are also the download of the lecture notes and the application of related samples! Interested engineers and friends may wish to find out.
Editor's note:
The driving power source is known as the "heart" of the LED lamps. It controls the life and death of the lamps and plays an important role in improving the power efficiency and life of the LED products. It directly affects whether the LED products can save energy and are environmentally friendly. With 15 years of accumulation, Richtek actively integrates the most advanced power management technology into the latest products of customers, and it is bound to carry out "efficient, green and environmental protection" to the end.
2. High reliability: NOMEX insulation material is selected for high and low voltage coils, and Class H solvent-free impregnating paint is impregnated by VPI vacuum pressurizing equipment for many times, and the coils are baked and cured at high temperature for many times. The product is Class H (180 ℃), while the main insulation material is Class C (220 ℃), with strong overload capacity and good short-circuit resistance. Under the condition of good ventilation, 20% overload operation is allowed.
3. Energy conservation and environmental protection: steel, iron and other materials are easy to recover after the end of product life; All NOMEX paper used will not release toxic substances when burning; Other insulating materials can be degraded without polluting the environment; Low loss and energy saving of products; Low noise, flexible design.
Because dry-type transformer has no oil, there is no fire, explosion, pollution and other problems, so electrical codes and regulations do not require dry-type transformer to be placed in a separate room. The loss and noise have been reduced to a new level, creating conditions for the transformer and low-voltage panel to be placed in the same distribution room.
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Henan New Electric Power Co.,Ltd. , https://www.newelectricpower.com