Using long-life capacitor does not necessarily ensure the power supply life-span. In order to improve the life of power led lights, you need to improve in many ways: the use of the higher life of the capacitor, and to improve power efficiency, good thermal design of power supply life, optimizing the thermal design of the lamp. Many lighting companies in order to reduce weight, small volume and install in a confined space, in order to consider the lighting design of compact thermal conditions of its power limited. High efficiency, small size and better thermal design challenges faced by the led driving lights.
In traditional lighting, except some part of power conversion convert into lighting, most of the power radiation infrared radiation energy to the lighting of external space. While different from LED lamps, the LED is a semiconductor light-emitting. In addition to the part of the power converted to light, the vast majority of power is converted to heat, this heat can only use the chip in close connection with the lamp body heat.
In order to have the beautiful structure of the whole lighting products, businesses always tend to put LED power supply and LED lamp structure together, so that the power and the LED light source in a poor working environment. When work environment temperature exceeds a certain temperature, theled driving lights and LED life is greatly reduced. Power supply internal temperature protection is set to repeatedly switch lights phenomenon, temperature protection would lead to high temperature and damage the power devices and accelerate the LED light failure if it does not set switch light.
led driving lights is a switching power supply, switching power supply quality and reliability depends on its circuit design, production process and the quality of the device. The electrolytic capacitor is an essential component of high-power switching power supply.
While the normal working life of the switching power supply depends on the power supply electrolytic capacitors used in the life of electrolytic capacitors in turn depends on the capacitor itself, the life and operating temperature.
The working life of Electrolytic capacitors in the different temperature are very different.