Dongying Jiawen Optoelectronics and Inspur Huaguang jointly developed a new AC-driven AC-LED technology

Recently, Dongying Jiawen Optoelectronics Co., Ltd. and Inspur Huaguang Group jointly developed a new type of AC-driven AC-LED technology, all of which have met the requirements of industrialization and declared national invention patents.

Existing LED operating modes focus on low voltage (2-4 volts) and constant DC. When urban AC power is used to drive LED lights, a variable voltage constant current power supply including buck and steady current electronic components is required. In the AC-DC conversion process, 15-30% loss is inevitable. Taking advantage of the small size of LEDs, the DC drive power module with complicated structure is often compactly installed inside the narrow lamp body together with the LED chip. The LED chip and the power source are both heat sources, so that the ambient temperature rises, thereby further Reduce the working efficiency and life of DC drive power. The life bottleneck of LED power supplies is becoming a fundamental source of many problems.

AC-LED technology completely breaks through this technical bottleneck: its basic concept is to not use extra (external chip) AC/DC conversion and rectification circuits, instead of using current limiting resistors to directly drive LEDs with AC power, avoiding the use of constant DC Loss of efficiency due to power supplies, large size, complex structure, and lifetime limitations. The application of AC-LED eliminates the traditional constant voltage and constant current power supply, removes redundant electronic components, thereby reducing the cost, and has achieved great success in the miniaturization, reliability and extended working life of LED lamps.

So far, only three companies in the United States, South Korea and Taiwan have AC-LED core technology and first-generation products. Gavin Optoelectronics' technological breakthroughs, patent applications and product development will fill the gap in AC-LED research in the mainland.

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