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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: 2014-06-25
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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Experimental program
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Effect test

Embodiment 1

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

[0052] 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 AC, such as single-phase sine wave AC, and after switch group switching, three output power signals are obtained respectively, and the average power of these three output power signals The same, and have different polar characteristics, respectively:

[0054] The first pole signal A is obtained by performing full-wave rectification on the input power signal D;

[005...

Embodiment 2

[0066] Embodiment 2 of the present invention is a pole-changing dimming device that can cyclically adjust the light output, referred to as "cyclic dimming" scheme. The module structure diagram of the device is as follows Figure 8 shown;

[0067] The "cyclic dimming" scheme includes a pole-changing switch module 10 and a terminal 20, wherein the pole-changing switch module 10 uses image 3 The shown pole-changing switch scheme includes an input terminal 11, a rectifier bridge 13 and a switch group 14, wherein the rectifier bridge 13 is connected to the input terminal 11, and the input power signal enters the full-wave rectification from the input terminal 11, and then A 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; wherein the two non-inverting terminals bb' are connected to the input terminal 11, and the other The two non-inverting termin...

Embodiment 3

[0073] The third embodiment of the present invention is a pole-changing dimming device that can quickly switch the color temperature, referred to as the scheme of "switching color temperature". The module structure diagram of the device is as follows Figure 9 Shown; Compared with Embodiment 1, the structural difference mainly lies in that the LED load 22 adopts two, still is Figure 7 In the form shown; the color temperature of the two LED loads 22 is different, one has a high color temperature such as an LED module 26 of 6400K, and the other has a lower color temperature of 3500K.

[0074] Moreover, the pole-changing switch module 10 adopts image 3 single switch form, the pole change detection module 21 still uses Figure 5 For the single optocoupler shown, the working principle of the "switching color temperature" scheme 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 ...

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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 luminous flux output and color temperature. According to the needs of different occasions and different times, the light color of lighting fixtures is adjusted to meet the lighting requirements. The high controllability of the LED light source has considerable application potential in the field of dimming. After the LED light source has been greatly developed, there are already various ways to adjust the light color of the lamps using the LED light source, such as : [0003] The first is the thyristor dimming method, which operates the LED lamps with adjustable drivers through a matching dimmer. This is the mainstream method of dimming LED lamps. This method is relatively mature and has been widely used, b...

Claims

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Application Information

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