As LED used widely in many fields, the engineers need to pay more attention on researching LED dimmable driver which controls LED lighting systems. LED dimmable driver can not only control the systems, but also dim the brightness of lighting.
It is well known that LEDs are low-voltage light sources, requiring a constant DC voltage or current LED dimmable driver to operate optimally. Operating on a low-voltage DC power supply enables LEDs to be easily adapted to different LED dimmable driver products, permits longer stand-by power, and increases safety.
LEDs, therefore, require a device that can convert incoming AC power to the proper DC voltage, and regulate the current flowing through the LED during operation. LED dimmable driver is the best choice. The dimmable driver can convert 240V (or other voltage) 60Hz AC power to low-voltage DC power required by the LEDs, and protects the LEDs from line-voltage fluctuations. An LED dimmable driver is the power supply for an LED system, much like a ballast is to a fluorescent.
LED dimmable driver may be constant voltage types (usually 12V and 24V) or constant current types (350mA, 700mA, 900mA, etc.). Some LED dimmable driver products are manufactured to operate specific LED devices, while others can operate most commonly available LEDs. LED dimmable driver usually compacts enough to fit inside a junction box, include isolated Class 2 output for safe handling of the load, operate at high system efficiency, and offer remote operation of the power supply.
LED dimmable driver with dimming capability can dim not only the LED light output over the full range from 100% to 0%, but also LEDs by reduction in the forward current, pulse width modulation (PWM) via digital control, or more sophisticated methods. Most LED dimmable driver products operate using the PWM method. With this method, the frequency could range from a hundred modulations per second to as high as hundreds of thousands of modulations per second, so that the LED appears to be continuously lighted without flicker.
Let’s wait and see that LED dimmable driver has a bright future.
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Post time: May-30-2020