Three Common Dimming Principles of LED Dimmers
The LED dimmer is actually an electrical device that can change the luminous flux of the light source in the device and adjust the illuminance level. The main function of the dimmer is to adjust the brightness of the light.
By reducing or increasing the RMS voltage, the light produces different intensity light output. The main function of this regulation is to control the lighting. For this kind of dimmer, do you know its dimming principle? Its dimming principles are mainly divided into three kinds, let the following is an introduction to these principles.
There are many types of dimmers: wall light dimmer, LED foot dimmer, table light dimmer, and so on. But the principles are similar. There are three main dimming principles of LED dimmers. The three dimming principles are bandwidth control dimming, constant current power supply control and grouping control. Each of the three dimming principles has its own advantages and disadvantages. In dimming technology, these are the three led dimming methods that technicians often use.
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1. Wavewidth control dimming of LED dimmers
This dimming method is also referred to as PWM for short. It can digitize the square wave of the power supply, and then control the duty cycle through certain technical means. When the duty cycle is controlled to a certain extent, its current can achieve the purpose of control.
2. Constant current power regulation of LED dimmers
In the dimming principle of light dimmers for LED lights, the knowledge used in this dimming principle mainly simulates electronic technology, and some linear technologies are involved. Using this technology in the dimming process, the size of the current can be adjusted quite easily.
3. Group control of LED dimmers
This kind of regulation is to group multiple LEDs, and then use a simple grouping device for regulation. In the process of grouping, the grouping control technology also needs to group according to the actual situation of the circuit. It is best to perform simple analysis and calculation before grouping, and then adjust and control.
These are the three common dimming principles of LED dimmers, namely, bandwidth control dimming, constant current power supply control and grouping control.
Wavewidth control dimming and constant current power control can be controlled steplessly with adjustable resistance knobs. PWM is a relatively mature technology, and its cost has been reduced to a certain extent. No matter what kind of regulation is used, it can be changed to a touch button switch or an independent grouping switch (such as a grouper, a remote control) to control the lights. The quality in this case is very reliable, and the service life will inevitably be greatly enhanced. If it is really necessary to use adjustable resistors for fine lighting control, it is best to use adjustable resistors.
As a long-standing light dimmer supplier, Flint can offer your professional and decorative light dimmer.