What is the use of the front dimmers for resistance and what sexual load
The advantage of the LED lighting is that the lower cost of the adjustment is compatible with the existing line and no need to rewire the line to control the light. The disadvantage is that the performance of the FPC is poor, usually resulting in a reduction in the range of dimming, and the minimum required load is more than a single or small LED lighting rating. Because thyristor switch attributes, only open the function of the current, but can't completely shut off the current, even to the lowest still have weak current flow, the characteristics of micro electric current and the LED luminous with silicon controlled dimmer abound shut final LED chemiluminescence phenomenon still exist, become the current wiring LED dimming way free promotion.
The dimming principle: The thyristor is extremely exposed to the power generation circuit, and the thyristor is connected to the load. From the ac phase 0, the thyristor closes, the input voltage is chopper, and the load is only available when the thyristor is controlled. In this way, the load voltage waveform is changed by adjusting the leading Angle of each half wave of alternating current, thus changing the effective value of the load current to realize the purpose of adjusting the light. In traditional applications, the cutting phase dimmer and the incandescent light bulb have a good match. Because the incandescent lamp is a resistive load, the heat and inertia of the incandescents can mask the distortion of the voltage waveform that is caused by the process by using electricity to heat the filament to incandescence. LED lighting is now widely used in the use of cutting-edge dimmers to be compatible with existing lines and equipment.
The cutting phase dimmer (FPC dimmer, forward phase controller) is normally used as a switch device, so it is also called a thyristor dimmer. Applied to resistive and electrical resistance (capacitive and inductive) load modulation (and speed adjustment). Frontier dimming equipment has a high controlling accuracy, high efficiency, small volume, light weight, easy to remote operation advantages, such as dominant in the market, most of the manufacturers of products is this type of dimmer
