Lighting, Ballast Controllers
Lighting Ballast Controllers are designed specifically for driving and controlling gas discharge light sources (such as fluorescent lamps, metal halide lamps, and LEDs). Their core function is to replace traditional magnetic ballasts, achieving efficient and stable lighting management.
1. What are the Key Features and Benefits of Lighting, Ballast Controllers?
Energy Efficiency: Significantly reduces energy consumption. For example, metal halide lamp retrofits can reduce total lamp power by up to 62.5%, saving up to 2.47 million kWh annually.
Compact Size and Technology Integration: Compared to traditional magnetic ballasts, these controllers offer a more compact design and can be integrated into lamp systems, saving space and eliminating the need for additional starters.
Flicker Elimination and Life Extension: High-frequency switching technology (20kHz-60kHz) converts industrial AC power to high-frequency AC, eliminating flicker in light sources while reducing switching losses and extending lamp life.
Intelligent Control Function: Supports preheat control, fault protection, dimming operations (such as light control or occupancy detection), and is adaptable to DC power supplies for enhanced system flexibility.
2. What are the Working Principles of Lighting, Ballast Controllers?
This system is based on three core components: rectification and filtering to convert the input AC power to DC; a high-frequency inverter (such as a half-bridge oscillator) to generate the high-frequency AC signal; and an LC resonant circuit to ignite the light source and stabilize the operating current. Modern controllers also integrate power factor correction (PFC) technology to achieve a power factor close to unity, reduce harmonic distortion, and comply with international standards such as IEC 928 and GB 15143.
3. What are the Application Scenarios of Lighting, Ballast Controllers?
These controllers are widely used in industrial, architectural, and automotive lighting. For example, Infineon’s intelligent solutions support multi-lamp designs and emergency lighting, with efficiencies exceeding 90%.
Digitally controlled versions (such as microcontroller-driven electronic ballasts) further improve energy efficiency and adjustability, meeting global energy-saving regulations.