Forward Phase Dimming Led Driver

It comprises a triac and a resistance circuit.

Forward phase dimming led driver. Resistance is controlled by a potentiometer. The most common dimmer is the standard forward phase dimmer. It is for use with 120v only. Selecting the best led dimmer pairing is paramount to help ensure the best dimming experience.

There are a large number of installed triac dimmers in the worldwide and they can prove a challenge to the control circuitry of an led light. Forward phase dimmers in leds. Stage lighting studio lighting tv and movie lighting set the highest standards. Our lutron hi lume 2 wire forward phase dimming driver option dims down to 1 at minimum light level and is available as an option with a wide range of usai products.

Hatch led drivers with a p in the part number after the current rating are compatible with both leading edge and trailing edge phase dimmers i e. Both forward phase dimming and reverse phase dimming provide the exact same amount of energy to the light fixture which they are powering. When you dim a light or light source you re not lowering the voltage you re actually removing power from the circuit. The incandescent bulb occupied the leading position for more than one century in the the lighting industry and over the last 50 years the phase dimmer has become.

The evolution of dimmable led lighting is an ongoing subject and phase cut dimming is often dissatisfactory. Lc25 0700p 120q is a 700ma driver with phase dimming built in leading edge dimming is sometimes called forward phase or triac dimming. To help leviton works closely with led lamp manufacturers and has created a web based led compatibility selector tool. The big difference is that with reverse phase dimming the electronics in a led driver and or fluorescent ballast are powered first and then the dimming occurs second.

It is the default driver provided with our beveled mini series and the nanoled nxt cylinder. It is for use with 120v only. Led drivers designed to work with two wire forward phase dimmer controls help eliminate common bugs such as flickering ghosting pop on and drop out. Finally forward phase dimmers are the overall least expensive option.

If you re going to do forward phase dimming that means you re chopping off the forward part of the sine wave on the positive current end and the back part on the negative current end this kind of dimming is very hard on drivers of an electronic kind. With such a large base backward compatibility is a must. Trailing edge dimming is sometimes called reverse phase. While some weaknesses may be acceptable in residential applications they are definitely not acceptable in professional applications.

Led compatibility can present more challenges when using forward phase dimmers as opposed to reverse phase dimmers.