新闻中心
专业开发、设计、定制、生产
search
News News
Products / Products
发布时间: 2013 - 11 - 29
The LEAG Antriebstechnik AG with over thirty years experience in the field of drive and control technology, develops, manufactures and tests their products in-house.The product range is broad and covers mainly the areas of Automation, Robotics, Retrofit, laser systems and medical technology from. Also special solutions for industrial electronics find their place with us.We place great emphasis on outstanding quality, ease of use, reliability and durability of our products. Accordingly, we make sure that the relevant standards for the manufacture of electronics products and equipment knits are respected. Our products are stocked by qualified staff, soldered and assembled so that the set criteria and requirements can be complied with. In addition, each unit is subjected to by our professiona...
发布时间: 2013 - 11 - 29
The LEAG Antriebstechnik AG with over thirty years experience in the field of drive and control technology, develops, manufactures and tests their products in-house.The product range is broad and covers mainly the areas of Automation, Robotics, Retrofit, laser systems and medical technology from. Also special solutions for industrial electronics find their place with us.We place great emphasis on outstanding quality, ease of use, reliability and durability of our products. Accordingly, we make sure that the relevant standards for the manufacture of electronics products and equipment knits are respected. Our products are stocked by qualified staff, soldered and assembled so that the set criteria and requirements can be complied with. In addition, each unit is subjected to by our professiona...
发布时间: 2013 - 11 - 29
or over 40 years Mclennan has been a leading supplier of motion control products, services and systems serving the UK, Ireland and more recently France.  In certain niche markets such as scientific research and vacuum science we sell solutions, components and assemblies worldwide.  We specialise in motor sizes 1kW and less but many of our solutions are 100W or less, but do have larger motors if required for special projects. We have the capability for manufacture mechanical parts; carry out mechanical assembly and electrical wiring.  This combination of distribution, manufacturing and systems integration capability allows us to provide custom solutions, including manufacture of sub assemblies, complete control systems and mechanical mechanisms. Our own electronic designs inc...
Contact
Tel: 0755-2955 6666
Email: sales@shbangdian.com
Add: Schroder Road, Shenzhen Baoan District

LED应用中芯片的技术发展

Date: 2013-12-11
Views: 43

      LED照明灯具的驱动电源对变压器、电感器参数的要求十分高,为求精准需花费大量的人力和财力才能实现,工业化生产成本很难进一步下降。
     

      对LED驱动恒流源芯片设计技术的创新和突破,新的解决方案可以在LED灯具驱动电源实际应用时,输出电流对变压器和电感的电感量和LED的VF等参数不太敏感。创新技术的关键是优化芯片算法语言。芯片控制输出电流峰值,并通过辅助绕组反馈,使得退磁时间和芯片开关周期的比例固定,这样就可以使得输出电流与外围的电感量偏差和输出电压的偏差无关,而LED的VF值的偏差和电感偏差正是批量生产面临的最大的问题。
     

      来说,批量生产的变压器电感量和LED的VF都会有5~10%左右的偏差。而LED照明恒流驱动电源,批量精度可达3%以内,可以容许变压器和电感参数有较大的允差,这就降低了规模工业化生产的成本并促进流水线的持续快速生产

Copyright © 2005 - 2013 Shanghai Bangdian Mechanical&Electrical Equipment Co.,Ltd
犀牛云提供企业云服务
Sweep the concern our letter
Shanghai Bangdian Mechanical&Electrical Equipment Co.,Ltd
Room 543,Zhenxin Business Building,No.2199 Qilianshan South Road
Shanghai,P.R.China
Tel:0086-21-51119429 0086-21-59165826
Fax:0086-21-51567180
Zip Code:330520
Share to: