瑞萨电子镇流器技术解决方案
方案描述:
Renesas' range of 8-bit microcontrollers, which have a strong track record in inverter control, are ideally suited for modern lighting ballast control systems. An electronic ballast is a component which combines a high voltage charger to light a fluorescent lamp and a control system to make lighting status stable. Some fluorescent lights have a multiple lighting level control. An existing fluorescent lighting ballast consists of a number of discrete semiconductor devices. However, the increasing demand of energy savings has meant that the discrete devices that formed the controlling element of the ballast are being replaced by microcontrollers. For larger systems the lighting may be controlled remotely over a communications bus such as DALI (Digitally Addressable Lighting Interface). 电子镇流器（Electricalballast），是镇流器的一种，是指采用电子技术驱动电光源，使之产生所需照明的电子设备。与之对应的是电感式镇流器(或镇流器)。现代日光灯越来越多的使用电子镇流器，轻便小巧，甚至可以将电子镇流器与灯管等集成在一起，同时，电子镇流器通常可以兼具起辉器功能，故此又可省去单独的起辉器。电子镇流器还可以具有更多功能，比如可以通过提高电流频率或者电流波形(如变成方波)改善或消除日光灯的闪烁现象；也可通过电源逆变过程使得日光灯可以使用直流电源。
方案设计图
方案关键器件表
8-bit AllFlash microcontroller: wealth of on-chip peripheral functions such as a reset circuit and oscillator; highly accurate PWM output via 40 MHz operation, half-bridge/PFC *1 control, 16 to 30 pin
加入微信
获取电子行业最新资讯
搜索微信公众号：EEPW
或用微信扫描左侧二维码
