In the rapid development of LED power products, it is well known that triac dimming LED power supply are assembled with LED chips and power supplies. Generally, the space is small and the heat sink is poor. How to ensure the quality and life of the LED power supply?

  1. The influence of switching times: Most power supplies are equipped with a capacitor input rectifier circuit. When a 12V LED power supply is connected, a surge current will be generated, which will cause the fatigue of the switch contacts, and cause problems such as increased contact resistance and adsorption.

  2. The impact of inrush current protection resistance and thermistor power resistance: In order to offset the inrush current generated when the power supply is connected, the design of the power supply usually uses the resistance and the triac and other components in parallel.

  3. The impact of the actual application environment: high humidity environment, high temperature environment, dusty environment, strong magnetic environment, vibration environment.

  4. The influence of the power supply grid: The voltage input of the unstable grid will cause an impact on the components of the LED power supply, thereby affecting the service life of the 60W LED driver.