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Two-wire without neutral digital dimmer for leading edge dimmable lamp driver and method of operating same

A dimmer and action technology, applied in the field of digital dimmers, can solve problems such as limited power, insufficient internal circuits of two-wire switches, etc.

Active Publication Date: 2016-11-16
SIGNIFY HLDG BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when the switch is in the OFF state, the power that can be generated using this limited current and supplied to the internal circuitry of the two-wire switch coupled to the electronic ballast is also very limited and often insufficient to make the internal circuitry of the two-wire switch work properly. run

Method used

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  • Two-wire without neutral digital dimmer for leading edge dimmable lamp driver and method of operating same
  • Two-wire without neutral digital dimmer for leading edge dimmable lamp driver and method of operating same
  • Two-wire without neutral digital dimmer for leading edge dimmable lamp driver and method of operating same

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Embodiment Construction

[0029] The following is a description of illustrative embodiments which, when considered in conjunction with the following figures, demonstrate the above-mentioned and further features and advantages. In the following description, details such as architecture, interfaces, technologies, element attributes, etc. are given for purposes of explanation rather than limitation. It will be apparent, however, to one skilled in the art that other embodiments that depart from these details will still be understood to be within the scope of the appended claims. Moreover, for the purpose of clarity, detailed descriptions of well-known devices, circuits, tools, techniques and methods are omitted so as not to obscure the description of the present system. It should be expressly understood that the drawings are for purposes of illustration and not indicative of the scope of the invention. In the drawings, the same reference numbers in different drawings may refer to similar elements.

[003...

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PUM

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Abstract

A dimmer switch (110‑x, 200, 400, 600, 700A, 700B, 1200) adapted to be coupled to an alternating current (AC) source and a load to control the amount of power delivered from the AC source to the load For control, the dimmer switch may include: a triode for AC (TRIAC) (208, 408, 612), which is coupled between the AC source and the load, and which conducts when triggered to switch on the AC A controlled amount of power is delivered from the AC power source to the load during corresponding ones of the one or more half cycles of the power source. The dimmer switch can include first and second trigger circuits (606, 608) configured to trigger the TRIAC when charging after being enabled. One or more trigger circuits may be self-balancing trigger circuits. The dimmer switch may further include a controller (412, 602, 1210) that selects and then enables one or more of the first or second trigger circuits.

Description

technical field [0001] The present invention relates to a two-wire digital dimmer, and more particularly to a digital dimmer suitable for circuits without a neutral and capable of being used with a leading edge dimmable lamp driver and a method of operating the same. Background technique [0002] In recent years, light emitting diodes (LEDs) and fluorescent lamps have become popular as retrofit lights in ceiling and wall fixtures for a number of reasons including extended life, efficiency, and improved lighting spectrum. These lights are often located in ceiling or wall luminaires and are usually connected to two common types of circuits: the feed from switch (FAS) type or the feed from the lamp (FAL) type. Both of these circuit types are typically turned on or off by a switch, such as a single pole switch or a dimmer switch mounted in a switch box. These circuits refer to Figure 1A with Figure 1B to explain, where Figure 1A shows a FAL type circuit while the Figure 1...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B39/04H05B44/00
CPCH05B39/044H05B41/3924H05B39/08H05B45/31H05B47/10H02M1/083H02M5/2573
Inventor 陈尚伍S·文基塔苏布拉马尼安
Owner SIGNIFY HLDG BV