A microcontroller-based emergency ballast for fluorescent lamps

摘要: This paper presents a new emergency ballast for fluorescent lamps. The fundamental block is the microcontroller-based control circuit, which performs supervision and function. High-frequency electronics techniques are proposed high power factor battery charger lamp driver, provides luminous efficacy. In this way, size weight have been minimized whole system. With introduction of microcontroller, system has capability testing itself, checking its functional state, displaying internal faults. Thus, reliability improved and, concurrently, maintenance cost decreased.