Reverse phase dimming usually gives you better overall control and smooth dimming down to 5% light levels, while forward phase normally dims smoothly down to 10%. Generally works better with LED light sources and all electronic low-voltage systems.
When you dim a light or light source, you’re not lowering the voltage, you’re actually removing power from the circuit. However, if the voltage is ridden gently, and then just shut off, it ends up being much easier on the electronic circuitry. This is called reverse phase dimming.
Also, is ELV reverse phase? Electronic Low Voltage (ELV) Dimmers were originally designed to control Electronic Low Voltage Transformers used in low voltage (12V) MR16 type fixtures. Also referred to as Reverse Phase Dimmers.
Subsequently, question is, is triac dimming forward or reverse phase?
A triac or thyristor-type dimmer (Fig. 2) is used for resistive and inductive loads, such as incandescent, neon, cold cathode, and low-voltage (inductive/magnetic) lamp sources. Dimmers used to control these types of loads are known as leading edge (LE) or forward–phase control (FPC) dimmers.
How does triac dimming work?
The TRIAC dimmer decoder, according to National Semiconductor, detects the dimming angle of a rectified AC current. The LM3450 then decodes the dimming angle, filters it, and remaps the line to a 500-Hz pulse modulation waveform capable of properly dimming an LED.
What is a leading edge dimmer?
Leading-edge dimmer switches are cheaper and simpler than trailing-edge, and were used originally to dim incandescent and halogen bulbs or wirewound magnetic transformers. They use a ‘TRIAC’ (Triode for Alternating Current) switch to control power, and are sometimes called TRIAC dimmers.
What does 0 10v dimming mean?
0-10v dimming is a lighting control method that—on direct current voltage (DC) between 0 and 10 volts—can produce varying light intensity levels. With varying intensity levels, using a 0-10v dimmer allows you to choose what light level you require based on how you are using it in that moment.
What is ELV dimmer?
ELV stands for Electronic Low Voltage. An ELV dimmer is known by a number of names. ELV dimmers are also called simply “electronic dimmers”, as well as “trailing edge dimmers”. These names come from the way in which this dimmer transitions your LED’s luminosity.
What is a CL dimmer?
The “C” in C.L stands for CFL and the “L” stands for LED. The C.L dimmers are compatible with dimmable CFLs and LEDs, and so are recommended for use with these bulbs. C.L dimmers are designed and UL listed for controlling not only a broad range of dimmable CFLs and LEDs, but also incandescent and halogen bulbs.
What is a MLV dimmer?
magnetic low-voltage lighting. Lutron MLV dimmers are specifically designed to prevent DC voltage from being applied to the transformer.
Are all LED drivers dimmable?
Both constant-current and constant-voltage LEDs and drivers can be made with a dimming capability, though both LEDs and drivers must specify that they are dimmable on the product datasheet for that assertion to be made. If the specs don’t mention dimming at all, it is safe to assume that the product is not dimmable.
What is the difference between LED dimmer switch?
The main difference is that you have a smaller dimming range (typically 70-90% range vs. 100% with incandescent or halogen). LED Bulbs may not shut off at the lowest dim setting like traditional bulbs. In traditional dimming systems you are simply lowering the voltage/power to the bulb, which in turn dims it down.
How do LED dimmers work?
In the case of PWM, dimmable LEDs work by creating a dimming effect. Unlike traditional lighting such as incandescent, dimmable LED bulbs don’t rely on voltage to dictate their level of brightness. For example, if you have dimmed your lights to 10%, they will be ‘on’ for 10% of the time and ‘off’ for 90%.
What is an inductive dimmer?
Inductive Dimmers – Designed to dim from the low voltage side of a transformer or on LED lighting. They are rated by voltage rather than wattage. This type of dimmer can also be used to dim LED lamps that are power by a constant current 230V LED driver.
Does a dimmer switch reduce voltage?
Dimmers are devices connected to a light fixture and used to lower the brightness of light. By changing the voltage waveform applied to the lamp, it is possible to lower the intensity of the light output. Modern dimmers are built from semiconductors instead of variable resistors, because they have higher efficiency.
What is forward phase?
Forward phase works with magnetic low voltage light sources, which can handle loads up to 10,000 Watts. They also protect magnetic transformers from overheating or suffering damage due to voltage spikes/surges. Forward phase also works with neon, cold cathode, and some LEDs that are compatible with incandescent.
What is the difference between magnetic and electronic low voltage dimmers?
Dimmers for magnetic low-voltage transformers use a technology known as standard phase control or “leading edge,” whereas dimmers for electronic low-voltage transformers use reverse phase control or “trailing edge.” Standard phase control is for use with either inductive (MLV transformers, fans) or resistive (
What is a dimmable driver?
Dimmable drivers offer superior dimming and control to inexpensive PWM dimmers that install on the low voltage (12V or 24V DC) side of the circuit. They’re a permanent and elegant solution that keep wires hidden away inside your walls, and dimming control where you expect it – right at the switch.
What is the difference between 0 10v and 1 10v?
0-10V and 1-10V are two different standards: The main difference between 0-10V and 1-10V is the direction of the current between dimmer and driver. 0-10V is a current source system, which means that the dimmer provides the power for the 0-10V signals – a mains connection to the dimmer is necessary.