Driver power supply manufacturer: The technological progress of led driver power supply has given full play to the key factors

Another important branch of driving power supply manufacturers, it has little time and significant advantages. No matter what type and specification, the linear IC power supply itself is relatively small, so it is not easy to occupy too much indoor space of lighting fixtures during the design of lighting equipment, and the cost is low. In addition, this new LED power supply has high PF and high efficiency. Its dimming is divided into two technologies: internal power switch dimming and external intelligent dimming, which can give technical engineers enough choice space. The necessity of driving LED power supply: People who have been exposed to LEDs know that the forward photocurrent characteristics of LEDs are very steep.

Do not use a voltage source to power the system immediately like a general fluorescent lamp, otherwise the operating voltage will fluctuate slightly and the current will expand to the extent of damaging the LED. In order to better stabilize the current flow when the LED is working, a high-quality driver power supply ensures that the LED can work normally and reliably. Various LED driver power supply circuits with "ballast function" have emerged. A very simple one is to connect a ballast resistor in series, and a very complex one is a "constant current power supply controller" composed of many electronic components. What is an LED driver power supply: An LED driver power supply is a voltage converter that converts power into a special current and voltage to drive the LED to emit light. The output of LED driver power supplies is mostly a constant current source, which can change the operating voltage as the forward voltage drop of the LED changes. The key components of driver power supply manufacturers include power switch control board, inductor, power switch electronic devices (MOSfet), feedback resistor, input filter and output filter. According to local regulations, there are input overvoltage protection power supply circuit, input undervoltage power supply circuit, LED lead maintenance, overcurrent protection and other power supply circuits. The driving power supply is a power converter that converts power into a specific current and voltage to drive the LED to emit light. Generally speaking, the input of the driving power supply includes high-voltage DC alternating current (voltage), low-voltage DC, high-voltage DC, low-voltage high-frequency communication (such as the output of electronic transformers), etc. The output of the driving power supply is mostly a constant current source, which can change the operating voltage as the forward voltage drop of the LED changes.

Depending on the application, communication drivers can be divided into three types: step-down type, transformer type and SPWM type. In addition to the difference between AC drive and DC drive, AC drive also requires rectification and filtering. From a safety perspective, there is also the problem of protection or no protection. Therefore, in addition to the continuous integration and development trend of the entire LED industry chain, the technological upgrading of drive power manufacturers has also played a key role. As the LED industry chain achieves a leapfrog development trend, it gradually shifts from government lighting fixtures to civilian lighting fixtures.

That’s all for today’s driver power supply manufacturers. Thank you for watching. See you next time.