【摘要】 介绍了一种基于ARM单片机(LPC2114)的金卤灯用电子镇流器。为匹配金卤灯的负载特性,采用了分段式线性化控制策略,给出了基于ARM的电子镇流器控制流程,以及恒流和恒功率控制的离散补偿网络设计方法。试验结果表明,该电子镇流器可达到0.4%的恒功率控制精度,并实现了多种故障保护、通讯和调光功能。更多还原

【Abstract】 This paper presents an electronic ballast for Metal Halide Lamps(MHL) based on ARM Microcontroller(LPC2114).In which the piece-wise linearization strategy was used to match the load characteristics of Metal Halide Lamps.The control flow of the electronic ballast based on ARM is proposed.The design method of the discrete compensating network of the constant current and constant power control is also presented.The experimental results showed this electronic ballast′s constant power precision can reach 0.4%.It also has the functions of error protection,communication and dimming.更多还原