Assigned to SAVANT SYSTEMS, INC., Racepoint Energy, LLC, SAVANT TECHNOLOGIES LLC reassignment SAVANT SYSTEMS, INC. Assignors: CONSUMER LIGHTING (U.S.), LLC, SAVANT SYSTEMS, INC. Publication of US20110148318A1 publication Critical patent/US20110148318A1/en Application granted granted Critical Publication of US9167641B2 publication Critical patent/US9167641B2/en Assigned to PNC BANK, NATIONAL ASSOCIATION reassignment PNC BANK, NATIONAL ASSOCIATION SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). reassignment LIGHTECH ELECTRONIC INDUSTRIES LTD.
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Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Priority to US12/324,948 priority Critical patent/US8203276B2/en Application filed by Lightech Electronics Industries Ltd filed Critical Lightech Electronics Industries Ltd Priority to US13/039,842 priority patent/US9167641B2/en Assigned to LIGHTECH ELECTRONIC INDUSTRIES LTD.
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Original Assignee Lightech Electronics Industries Ltd Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Shackle Zhanqi Du Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Granted Application number US13/039,842 Other versions US9167641B2
MARKX PHASE DIMMING DRIVER
Google Patents US20110148318A1 - Phase controlled dimming led driver system and method thereof For more details, please visit PHASE CUT LED DRIVER.US20110148318A1 - Phase controlled dimming led driver system and method thereof Thanks to phase dimming technology, we have 24V 150W phase cut dimmable LED driver for sale, which supports both leading edge (Triac) and trailing edge (ELV) dimmer, and can be compatible with the systems of various brands (Philips, Panasonic, Lutron, Simon, ABB,Bunge, Siemens etc.) to achieve a smooth dimming effect. It is also called MOSFET dimmer, commonly known as "MOS tube". The trailing edge phase-cut dimmer generally uses MOSFET as the on-off switch device. The trailing edge phase cutting control dimmer is made of field effect transistor (FET) or insulated gate bipolar transistor (IGBT) equipment. Leading edge phase controlled dimmer generally uses thyristor as switching device, so it is also called TRIAC dimmer.ĭimming by cut-off in the wave on its descending side, from the end cutting backwards (phase cut-off at switch off). Most manufacturers' products are this type of dimmer optical device. The LEPC dimmer has the advantages of high adjustment accuracy, high efficiency, small volume, light weight and easy remote control.
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The principle is to regulate each half wave of AC to change the sinusoidal waveform, so as to change the effective value of AC current, so as to achieve the purpose of dimming. Leading edge dimming is to use TRIAC circuit, starting from AC phase 0, the input voltage is chopped, and there is no voltage input until the TRIAC is turned on.
![markx phase dimming markx phase dimming](https://www.intelligentenvironments.co.nz/wp-content/uploads/2017/03/DALI-Phase-Adaptive-Dimming-Device.png)
That is, the front edge is turned on and the zero crossing point is naturally turned off to adjust the light. The input voltage is chopped from AC phase 0 until the TRIAC is turned on. Leading edge dimming is to use TRIAC circuit. That is to control the time that the mains can provide energy to the lamps in a unit time to regulate the brightness.ĭimming cut-off in the wave on its ascending side, from the beginning (phase cut-off at ignition). Phase dimming is to control the conduction time of AC and then dimming, which“clips” part of the sine wave of the alternating current to dim the light.