I am sure you will learn a lot of knowledge about the LED power supply, the following small series, I will come and explain to you the next LED dimming power life will have an impact which aspect?
In many aspects, we will come to you to explain the power of LED dimming performance life environmental features, components and electrical characteristics were what? Look below to view!
- The impact of switching times
Most of the power supply has a capacitor input type rectifier circuit, when the electric power was turned, will produce surge current, causing the switch contacts fatigue, causing problems such as contact resistance increases and adsorption. Theorized that life expectancy during the power, the number of on-off switch is about 10,000 times.
- Impact of power grid
Unstable power supply voltage input LED components will impact, thus affecting the life of the LED driving pulse.
- Affect the insulation and installation
Products are properly installed and good insulation will increase the application of LED power supply surge current resistance, thermal power resistors impact protection: To engage in power against the impact of the current through the fashionable, usually power supply design elements such as a resistor in parallel with the SCR used together. Number of power-fashionable peak power rating of up to several hundred times the value, resulting in resistance to thermal fatigue, causing breakage. Thermal power resistors in the same case will produce thermal fatigue phenomenon.