LED driver board is used to drive the LED lamps and lanterns circuit board, its main function is to convert the power supply to the current and voltage suitable for the LED work.LED driver board has the characteristics of high efficiency, stability and reliability, can provide constant current output, to ensure that the LED lamps and lanterns stable light. At the same time, LED driver board also has over-current, over-voltage, overheating and other protection functions to ensure the safe use of LED lamps and lanterns.
LED driver board is mainly for LED drive and control, including colour temperature, brightness, switching control, etc., it usually includes rectifier filter circuit, high frequency conversion circuit, vice side rectifier filter and control circuit composition, these circuits usually need to use the bridge stack, diode, transistor, MOS, and resistors, capacitors, inductors, and other components products.
The working principle of LED driver board is to convert AC power to DC power, and adjust the current and voltage through electronic components to meet the working requirements of LED lights.LED driver board usually power supply module, which is mainly responsible for the conversion of AC power to DC power, and provide a stable voltage output. Common power supply module has rectifier circuit, filter circuit and voltage regulator circuit. The power supply module needs to consider the input voltage range, output voltage and current requirements to ensure that the LED lights can work properly.
As the core part of the LED driver board, the driver circuit is responsible for converting the current and voltage provided by the power supply into a current and voltage suitable for the operation of the LED light. The driver circuit usually includes power switching devices, inductive components, filter capacitors, etc. The output current and voltage are adjusted by PWM regulation technology to achieve the brightness adjustment of the LED lights. The control circuit is used to control the switching and brightness adjustment of the LED lights.
The control circuit usually includes a microcontroller or control chip, which realises the switching and brightness adjustment of the LED light by receiving external signals or user input. The control circuit can also realise the protection function of LED lights, such as over-voltage protection, over-current protection, etc.
Core Advantages of LED Driver Board:
Constant Current Driving Technology
Constant current driver chip can stabilise the output current with about 1% accuracy, which effectively avoids the problem of uneven luminance and shortening of LED life caused by unstable current during constant voltage driving. In addition, constant current drive also helps to prevent thermal runaway and improve the safety and reliability of LED components.
PWM Dimming Technology
Controls the ratio of on and off time of LEDs through pulse width modulation (PWM) and adjusts the average current flowing through the LEDs, which not only achieves delicate adjustment of luminosity, but also maintains constant luminous colour temperature, taking into account visual comfort and energy efficiency savings.
Intelligent Protection Design
High-quality LED driver boards with over-voltage, over-current and short-circuit protection can respond quickly to abnormal currents and voltages, preventing damage to the LEDs and prolonging the service life of the system.
High Efficiency Conversion and Heat Dissipation
Modern LED driver adopts switching power supply technology and thermally enhanced packaging to obtain high conversion efficiency (generally over 90%) and reduce energy waste, and at the same time, optimise the heat dissipation of the driver itself to ensure the stability and long-term durability of the system.
LED driver boards are used in a variety of lighting equipment, such as indoor lighting, architectural lighting, plant lighting, home lighting, electronics lighting, outdoor lighting and so on. Its technical parameters include input voltage range, output current and voltage, power factor, efficiency and so on. Reasonable design can ensure the stable operation and long life of LED lights to achieve the best lighting effect. When choosing discrete device products, customers should pay attention to the load and voltage and current parameters of the products to ensure that the product devices are in the policy working range to achieve the control and protection of the circuit.
