In order to create a smart lighting system with energy saving and high efficiency, the use of MCU and dimmable driver for environmental sensing and high-efficiency dimming is a popular design trend in today's LED lighting systems. In addition, the simulation of optics and heat dissipation is also It is an indispensable development link to ensure the reliability and safety of LED products.
Circuit design and system simulation are the two key successes to realize LED intelligent lighting system. In the circuit design, if you add a microcontroller (MCU), you can not only monitor the LED device 24 hours a day, but also report the abnormal situation instantly, and can also perform lighting equipment. Group control to adjust the energy to make the lighting system more intelligent; and to enhance the stability of the LED light source, the introduction of the dimmable driver into the circuit design can solve the problem of light source flicker and improve energy efficiency.
On the other hand, it is crucial to verify the viability of the product through the simulation process of optics and heat dissipation. This will not only ensure product safety, but also accelerate the development of the product and enhance the market competitiveness during the simulation process. .
Realize the wisdom lighting system MCU role to eat heavy
With the increasing popularity of LEDs, applications are becoming more diverse, and the business opportunities of smart lighting systems are more and more expected by the industry. In order to create an LED intelligent lighting system, the introduction of the MCU can realize functions such as automatic brightness adjustment, automatic color conversion, environment sensing, and group system control, enriching the application of LED lighting and improving energy efficiency.
Zhu Weixen, senior application engineer at Infineon, said that MCU can enable LED lighting to realize intelligent lighting system, fully improve energy efficiency and enrich LED multi-application.
In the past, LED lamps lacked control and changes. Even though LEDs are more durable than traditional halogen lamps and incandescent lamps, the LED light output will be degraded by aging and temperature under long-term use, resulting in easy power in the fixture. Damage, the reliability is greatly reduced, and the defects that cannot be dimmed also result in inefficient energy use. The above factors will eventually shorten the LED service life, and at the same time, the application will be more tedious due to the inability to change the light.
Zhu Dansen further pointed out that in order to achieve dimming control, color conversion and high efficiency of energy use, the introduction of LED lamps into the MCU can make more changes in indoor lighting, outdoor lighting, decorative lighting, and emergency lighting, such as controlling LED lights. During the day, adjust the brightness according to each different time period to save energy, or remote group control through the digital addressable illumination interface (DALI) in the MCU, and monitor whether the LED device is still functioning at any time to facilitate the notification of the project. Quick maintenance of personnel, these new applications make LED lights no longer just open and close, but also have more flexible use.
It is understood that Infineon has seized the XC835 and XC836 MCUs for the LED smart lighting market. The biggest difference between the two MCUs is that the XC836 supports DALI and can be used for LED lamps. The remote control of the smart system, while the XC835 is not supported. In addition, both models support touch control and are characterized by high heat resistance (150 ° C) and high reliability. At present, this series of MCUs are mainly used in small and medium-sized fluorescent tubes such as T4 and T8 and bulbs commonly used in the entertainment decorative lighting market.
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