Sine Wave Dimmer

So if the triac chops the beginning of the sine wave it s leading edge dimming.

Sine wave dimmer.

When chopping a sine wave you can chop the beginning of the wave or the end of the wave. With phase control the voltage is cut off before the end of the sine wave so that only the first part is transmitted. These days incandescent are on the way out and they themselves are considered old technology. This wave combines the aforementioned.

The benefits of the technology speak for themselves but the bottom line is always price and that is where the downfall of the sine wave dimmer lays. This is because line voltage dimming leds react to the hard phase angle that s present in both forward and reverse phase dimming which sinewave dimmers were designed to eliminate. Forward phase control forward phase control uses a dimmer that chops each half cycle of the power sine wave. In both cases you achieve dimming by reducing the outgoing power.

Dimmers are producing triplen harmonics. The more you chop the dimmer the light. The swisson sine wave dimming technology has many advantages over conventional phase control dimming. This dimming technique is used for capacitive loads evsa.

I thought triac phase control was sine wave control. Sine wave dimmers are more efficient then comparable ssr and scr dimmers they are able to operate much faster be much quieter and still achieve the same efficiency. As the form of the ac sine wave is always preserved it does not produce any filament sing or electrical disturbances which could affect audio or video equipment. Extending the period of time that the power is off during the half cycle results in a lower power output to the load.

A notable disadvantage of sinewave dimmers is that they don t interact well with led loads it s likely that sinewave dimmed leds won t dim at all. Sine wave and dc dimming. A large amount of heat is produced in these dimmers during the transitions rise or fall time since the igbts are operated in their linear region. There are many high tech dimmers out there already which use both leading and trailing edge dimming to overcome the problems you encounter with incandescents and with led dimming.

Power is off during the initial part of each half cycle and then turns on. And guess what it s called if you chop the end of the.