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Pole-changing driving method and pole-changing dimming apparatus utilizing pole-changing driving method

A dimming device and pole-driven technology, applied in lighting devices, light sources, electric light sources, etc., can solve the problems of large interference, easy to be interfered, poor stability, etc., and achieve strong anti-interference ability, good anti-interference ability, good signal strength

Active Publication Date: 2012-09-26
XIAMEN YANKON ENERGETIC LIGHTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is the mainstream method of dimming LED lamps. This method is relatively mature and has been widely used, but it has some defects, such as low efficiency, large interference, large harmonics, and large noise. Hazard of flickering light sources
[0004] The second is the infrared remote control method. The driver is controlled by setting an infrared receiver on the LED lamp, and an additional remote control is used for remote control; this method can only be controlled one-to-one generally, and, from the characteristics of infrared rays, Its control distance is short, there is a limit to the receiving angle, and it is susceptible to interference
This method is expensive, and the stability is not good, and it is easy to be disturbed
[0006] The fourth is to use wired communication, laying additional signal lines to connect each terminal lamp, such as using the light color adjustment scheme of the DALI system; this method is more accurate in control, but requires additional signal lines, which increases installation costs. Its communication and control system needs additional involvement, which is more complicated
[0007] To sum up, for the stable adjustment of light color of lighting fixtures, it is always necessary to avoid the hidden dangers listed above, but the existing methods are difficult to be comprehensive.

Method used

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  • Pole-changing driving method and pole-changing dimming apparatus utilizing pole-changing driving method
  • Pole-changing driving method and pole-changing dimming apparatus utilizing pole-changing driving method
  • Pole-changing driving method and pole-changing dimming apparatus utilizing pole-changing driving method

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Effect test

Embodiment 1

[0051] Such as figure 1 , The flow chart of the first embodiment of the "pole-changing driving method" of the present invention; the flow chart shows the complete pole-changing driving cycle; and figure 2 Yes figure 1 A module structure diagram of the "pole-changing dimming device" corresponding to the first embodiment is shown; and the waveforms of some key ports are shown; combined with these two diagrams to illustrate:

[0052] For the pole-changing driving method and the corresponding device, the processing steps are:

[0053] Signal generation step 1: This step processes an input power signal D in the form of single-phase alternating current, such as single-phase sine wave alternating current. After switching by the switch group, three output power signals are obtained respectively, and the average power of the three output power signals The same, and the different polarity features are:

[0054] The first pole signal A is obtained by performing full-wave rectification on the i...

Embodiment 2

[0066] The second embodiment of the present invention is a pole-changing dimming device that can cyclically adjust light output, referred to as the "circular dimming" solution. The module structure of the device is as follows Figure 8 Shown

[0067] The "circular dimming" solution includes a pole-changing switch module 10 and a terminal 20, wherein the pole-changing switch module 10 is image 3 The pole-changing switch scheme shown includes an input terminal 11, a rectifier bridge 13 and a switch group 14. The rectifier bridge 13 is connected to the input terminal 11, and the input power signal enters the full-wave rectifier from the input terminal 11 One DC terminal output; the switch group 14 includes a double-pole double-throw first switch K1, and the two common terminals aa' of the first switch K1 are used as the output terminal 12; the two non-inverting terminals bb' are connected to the input terminal 11, and the other The two non-inverting terminals cc' are connected to th...

Embodiment 3

[0073] The third embodiment of the present invention is a pole-changing dimming device that can quickly switch color temperature, referred to as the "switching color temperature" solution. The module structure of the device is as follows Picture 9 As shown; Compared with the first embodiment, the main structural difference is that the LED load 22 uses two, still Figure 7 The form shown; the color temperature of the two LED loads 22 are different, one has a high color temperature, such as the LED module 26 of 6400K, and the other has a lower color temperature of 3500K.

[0074] And, the pole-changing switch module 10 adopts image 3 Single switch form, the pole-changing detection module 21 still uses Figure 5 For the single optocoupler shown, the working principle of the "switching color temperature" solution of the third embodiment is as follows:

[0075] In the third embodiment, according to the state of K1 in the pole-changing switch module 10, the output terminal 12 can have ...

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Abstract

The invention discloses a pole-changing driving method and a pole-changing dimming apparatus utilizing the pole-changing driving method, wherein: according to the pole-changing driving method, an input power signal which is in the form of single phase alternating current is processed to obtain three output power signals which have a same average power but different polarity characteristics, and outputs the three output power signals to a terminal; the terminal has a polarity determining function and based on at least two of the three output power signals, makes correspondingly responses different from each other; at the same time, an output terminal is reused as a power supply terminal of the terminal. A power path and a control path of the terminal is completely reused by utilizing the pole-changing driving method so that extra signal lines are omitted completely for output terminal lines and a control terminal and the terminal can use an original power line. The method and the apparatus of the invention have comprehensive advantages in that the loading capacity of the apparatus is great and only limited by the upper power bound of a transmission pass, the signal strength is good, the anti-interference ability is strong, the communication distance is long, and dimming and color temperature adjustment schemes are provided.

Description

Technical field [0001] The invention relates to a method for driving a load in a polarity conversion mode, and a pole-changing dimming device for realizing LED dimming by using the method. Background technique [0002] The adjustment of lighting fixtures focuses on their light output and color temperature. According to the needs of different occasions and different times, the light color of the lighting fixtures is adjusted to meet the lighting requirements. The characteristics of high controllability of LED light sources have considerable application potential in the field of dimming. When LED light sources have been developed by leaps and bounds, there are already a variety of ways to adjust the light color of lamps using LED light sources, such as : [0003] The first is the thyristor dimming method, which uses matched dimmers to operate LED lamps with adjustable drivers. This is a relatively mainstream method for dimming LED lamps. This method is relatively mature and has bee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B37/02
Inventor 余鹭帆方金海
Owner XIAMEN YANKON ENERGETIC LIGHTING CO LTD
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