Zero-power LED protection chip successfully developed in Anhui

The world's first zero-power LED protection chip independently developed by QTQ Technology Co., Ltd. was successfully developed in Wuhu High-Tech Industrial Zone in Anhui Province in recent days, and achieved results transformation. This marks the formal solution to the modular connection that has plagued the LED lighting industry.

It is understood that this kind of chip is currently the best solution for all small series of LED beads, which can maximize the efficiency and reliability of the power supply, and make it possible to achieve a unified standard in the LED driving power supply industry.

Wuhu High-tech Zone Management Committee introduced that this kind of protection chip's streaming chip sample has been used in the area of ​​400 LED street lamps for 6 months. Through field acceptance, it was found that 54 of the street lamp's protection chip played a role, there is no one street lamp. Lamp replacement, saving maintenance costs more than 160,000 yuan.

As we all know, LED is the most efficient and environmentally friendly lighting source. The LED lamp is composed of LED lamps with a diameter of about 5 mm and a power of 1 watt. However, the connection of these small lamp beads has become a difficult point in the LED lighting industry. Full-series circuits are the best choice for power efficiency optimization and manufacturing standardization. However, the problem with the full series circuit is that one of the small lamp beads burns and the entire lamp is completely extinguished. Therefore, the full series circuit has not been used in practical applications.

In the lighting industry, in order to solve the problem that one string of small lamp beads is burned, the whole lamp is completely destroyed. In the past, multiple parallel connection methods were adopted, that is, several LED lamp beads were connected in series to form a module, and multiple modules were connected in parallel to form an entire lamp. . Although this avoids the disadvantage that a small lamp burns and the entire lamp does not light, it has a great influence on the illumination of the entire lamp. Because the parallel circuit increases the current load of other work modules, the lamp life is shortened. In addition, the power efficiency of the modularized connection mode is low, resulting in low efficiency of the LED lamp.

At the same time, different module combinations require different driving power sources. There is no uniform standard in the industry, resulting in no standard for driving power supply. For different customers, power supply suppliers need to design different power supplies, and have to develop There are hundreds of power sources available to meet all possible combinations.

Q. Quantum's zero-power protection chip enables the full-series method to be implemented. Under normal operating conditions, the small lamp behaves without protecting the chip and does not generate current. It is completely powerless. Once an LED lamp is burned, the protection chip immediately Instead of a bad lamp to turn on the current, the full series circuit path is guaranteed and the entire lamp is never off. At the same time, the current of each lamp is constant, which ensures the service life of the lamp.

According to inspection, the LED lamp bead full-series lighting method implemented by the protection chip, compared with the current industry in the traditional module parallel solution, the power efficiency increased by 2%; at the same time, the unified series of circuit power supply requirements for the unified 350 mA The constant current source provides a platform for the standardization of LED lighting power supply production and manufacturing.

The first batch of 200,000 LED protection chips has been delivered.