首页>
外国专利>
HIGH-EFFICIENCY SELF-REGULATED ELECTRONIC BALLAST WITH A SINGLE CHARACTERISTIC CURVE FOR OPERATING HIGH-PRESSURE SODIUM VAPOUR LAMPS
HIGH-EFFICIENCY SELF-REGULATED ELECTRONIC BALLAST WITH A SINGLE CHARACTERISTIC CURVE FOR OPERATING HIGH-PRESSURE SODIUM VAPOUR LAMPS
展开▼
机译:高效的自调节电子镇流器,具有用于操作高压钠蒸气灯的单个特征曲线
展开▼
页面导航
摘要
著录项
相似文献
摘要
A high-efficiency self-regulated electronic ballast with a single characteristic curve for operating high-pressure sodium vapour lamps by means of an AC-to-DC converter circuit, a power factor correcting regulator circuit for reducing harmonic distortion, a high-frequency DC-to-AC converter circuit, a reducing autotransformer circuit with a current limiting inductor and an igniter, and a light-controlled switching circuit. The ballast is characterised in that it supplies a controlled high-frequency alternating voltage to the assembly of the limiting inductor and the lamp, whereby the ballast has a single characteristic curve, and in that the average power consumption of the lamp is determined on the basis of the single characteristic curve of the ballast within the standard regulation trapezoid defining the average consumption of the ballast/lamp assembly. Said ballast has uniform regulation characteristics, high electrical efficiency, a unitary power factor, low harmonic distortion, a high ballast efficiency factor, and a low stroboscopic effect.
展开▼