Take you to understand the driver in the LED electronic display? The LED electronic display is a current control device. The LED driver is actually the driving power source of the LED, and the LED is a circuit device that changes the AC current to a constant current or a constant voltage DC. Unlike ordinary incandescent bulbs, the LED electronic display can be immediately connected to a 220V AC power supply. The standard of LED driving power supply is almost strict, and its working voltage is generally 2,3V DC voltage, so it is necessary to design a complicated conversion circuit. LED lights for different purposes require different power plugs.

  Converting LED components into LED driving power supplies has high efficiency, reasonable output power, constant current accuracy, the service life of switching power supplies and electromagnetic compatibility testability standards. A good drive power supply must fully consider this factor. The drive power efficiency in all LED lighting devices is as important as the human brain. The key task of the LED driver is to convert the AC voltage into a constant current DC regulated power supply, and to pair the voltage and current of the LED in addition. Another task of the LED driver is to enable the LED load current to be adjusted at a pre-designed level under the damage of multiple components.

  There are standards for LED electronic display lighting. The forward voltage is applied to both sides of the PN junction, so the PN junction itself will generate an energy level (actually a series of energy levels), and the electronic device will transition at this energy level and cause the beautiful light of photons. Therefore, the voltage must be applied to both sides of the PN junction to force the LED to light up. Moreover, because LEDs are integrated circuit processes with relatively sensitive characteristics and negative temperature characteristics, they must be stabilized and maintained during use, thereby defining LED "drive".

  Anyone who has touched LED electronic displays knows that the forward photocurrent characteristics of LEDs are very steep (the dynamic power of the sun is very small in the forward direction), and it is more difficult to supply power to the LEDs. You cannot use voltage immediately like ordinary incandescent lamps. If the voltage fluctuates slightly, the current will expand to a level that will damage the LED. In order to stabilize the working current of the LED and ensure that the LED can work normally and reliably, various LED electronic display drive circuits are quietly emerging.