CN111491420A - Dimming method for realizing dimming through monitoring circuit waveform - Google Patents
Dimming method for realizing dimming through monitoring circuit waveform Download PDFInfo
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- CN111491420A CN111491420A CN202010267778.4A CN202010267778A CN111491420A CN 111491420 A CN111491420 A CN 111491420A CN 202010267778 A CN202010267778 A CN 202010267778A CN 111491420 A CN111491420 A CN 111491420A
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- dimming
- waveform
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- light source
- pulse signal
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The technology discloses a dimming method for realizing dimming through monitoring circuit waveform, which comprises the following steps: the power supply facility, the light source load and the dimming controller are connected in series to form a loop, and two ends of the dimming controller are connected with more than one dimming signal generator in a parallel mode; the dimming controller is used as a main controller for controlling the brightness of the light source load, and performs chopping processing on each half-cycle waveform in current flowing through the dimming controller, so that each half-cycle waveform is chopped to form a section of waveform; the dimming signal generator performs chopping processing on each half-cycle waveform flowing through the current of the dimming signal generator, and chops each half-cycle waveform into a pulse signal wave of the rest section; the dimming controller monitors the pulse signal wave conditions of all the dimming signal generators, and if the pulse signal waves output by the dimming signal generators are detected, the dimming controller executes the action of adjusting the brightness or switching on and off the light source load.
Description
The technical field is as follows:
the invention relates to a dimming method for realizing dimming through monitoring circuit waveforms.
Background art:
in the dimming method in the prior art, a central controller like a server needs to be configured, and a load of the central controller controls the brightness of a light source. The first is that the user will require to set client regulators at multiple places in the building, the central controller and the client regulators are communicated with each other through data lines, a communication protocol is formed between the central controller and the client regulators, the client regulators transmit the dimming signals or the brightness adjusting signals to the central controller as long as the user presses the client regulators, and the central controller controls the brightness of the light source load. The second method is to transmit signals between the central controller and the client side controllers by wireless transmission, but this method requires additional wireless transmission module circuits in the control circuits of the central controller and the client side controllers, which may greatly increase the circuit structures of the central controller and the client side controllers, resulting in increased cost and increased volumes of the central controller and the client side controllers.
The invention content is as follows:
the invention aims to overcome the defects of the prior art and provide a dimming method which is simple in structure, low in cost and convenient for workers to construct.
The invention aims to be realized by the following technical scheme: a dimming method for realizing dimming by monitoring circuit waveform comprises the following steps: the power supply facility, the light source load and the dimming controller are connected in series to form a loop, and two ends of the dimming controller are connected with more than one dimming signal generator in a parallel mode;
the dimming controller is used as a main controller for controlling the brightness of the light source load, and performs chopping processing on each half-cycle waveform in current flowing through the dimming controller, so that each half-cycle waveform is chopped to form a section of waveform;
the dimming signal generator performs chopping processing on each half-cycle waveform flowing through the current of the dimming signal generator, and chops each half-cycle waveform into a pulse signal wave of the rest section, wherein the pulse signal wave waveform of the rest section is matched with the section of waveform chopped by the dimming controller;
the dimming controller monitors the pulse signal wave conditions of all the dimming signal generators, if the pulse signal waves output by the dimming signal generators are detected, the dimming controller executes the action of adjusting the brightness or switching on and off the light source load, and if the pulse signal waves are not detected, the light source load maintains the original state.
The dimmer control chops the front end of each half-cycle waveform.
The pulse signal wave and the chopped wave form generated by the flowing dimming controller are superposed to form a complete power supply electric wave.
After adopting this technical scheme, compare with prior art, this technical scheme has following advantage: the dimming controller detects the electric wave condition sent by the dimming signal generator in the power supply circuit to realize dimming of the light source load, and a special signal transmission channel does not need to be designed for the dimming controller and the dimming signal generator, so that the dimming circuit structure is greatly simplified, the cost is reduced, and the installation is convenient.
Description of the drawings:
FIG. 1 is a block diagram of a power supply circuit for the dimming method of the present invention;
FIG. 2 is a diagram of the electrical waveforms for converting AC power to DC power in the dimming method of the present invention;
FIG. 3 is a graph of the wave of the present invention after being chopped by the front end of a DC one-half cycle waveform;
fig. 4 is an electric wave diagram of the pulse signal wave formed by the dc chopper of the dimming signal generator according to the present invention.
The specific implementation mode is as follows:
the present technique is further explained below.
The dimming method for realizing dimming through monitoring the circuit waveform in the technology is as follows: the utility AC, the light source load and the dimming controller are connected in series to form a loop, and a plurality of dimming signal generators S1-Sn (shown in fig. 1) are connected in parallel at both ends of the dimming controller according to a parallel power supply manner. The input terminals of the dimming controller M and the dimming signal generator S1-Sn are provided with ballast circuits for converting the input AC power into DC power.
The dimming controller M is used as a main controller for controlling the brightness of the light source load, and performs chopping processing on the front end of each half-cycle waveform in the current flowing through the dimming controller M, so that each half-cycle waveform is chopped into a small section of direct current electric wave, as shown in fig. 3 as 1, the purpose of chopping the small section of direct current electric wave is to avoid influencing the normal power supply of the dimming controller M to the light source load and the normal work of the light source load without any dimming action;
the dimming signal generator S1-Sn chops the dc power passing through itself, and chops the waveform of each half cycle into a small segment of pulse signal wave at the remaining front end, as shown in fig. 4 as 2, which matches the waveform of the small segment of dc power chopped by the dimming controller M;
the dimming controller M monitors the DC electric wave condition of all the dimming signal generators S1-Sn, and if the dimming signal generator S1 outputs a pulse signal wave, the pulse signal wave and the chopped wave form generated by the current dimming controller M are superposed to form a complete power supply electric wave, and the dimming controller M performs the action of switching or adjusting the brightness of the light source load. If no pulse signal wave is detected, the light source load maintains the original state.
The dimming method needs to be matched with a computer program to realize dimming control, such as: when a user keeps pressing the touch switch of the dimming signal generator, continuous pulse signal waves can be generated in the power supply circuit, the dimming controller M monitors that the pulse signal waves exist in the power supply circuit, the dimming controller M can increase the power supply current for the light source load to brighten the light source load, and the computer program remembers that the pulse signal waves generated for the first time are brightened. If someone keeps pressing the touch switch of the dimming signal generator again, the power supply circuit generates pulse signal waves again, and then the dimming controller M detects the pulse signal waves, the power supply current to the light source load is reduced, and the light source load is darkened.
Of course, a computer program may be set, where the current light source load is in an on state, and if the user just clicks the touch switch of the dimming signal generator, the dimming signal generator will send a single signal wave to the power supply circuit, and at this time, the computer program in the dimming controller M will extinguish L ED. after learning, and conversely, if the current light source load is in an off state, the computer program in the dimming controller M will light the light source load when receiving the single signal wave.
In the above scheme, no additional signal transmission channel is needed, and the dimming controller M is only used to continuously detect the pulse signal wave condition in the power supply circuit to determine the brightness control of the light source load.
The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments, using the methods and techniques disclosed above, without departing from the scope of the present invention. Therefore, all equivalent changes made according to the shape, structure and principle of the present invention without departing from the technical scheme of the present invention shall be covered by the protection scope of the present invention.
Claims (3)
1. A dimming method for realizing dimming by monitoring circuit waveform comprises the following steps: the power supply facility, the light source load and the dimming controller are connected in series to form a loop, and two ends of the dimming controller are connected with more than one dimming signal generator in a parallel mode;
the dimming controller is used as a main controller for controlling the brightness of the light source load, and performs chopping processing on each half-cycle waveform in current flowing through the dimming controller, so that each half-cycle waveform is chopped to form a section of waveform;
the dimming signal generator performs chopping processing on each half-cycle waveform flowing through the current of the dimming signal generator, and chops each half-cycle waveform into a pulse signal wave of the rest section, wherein the pulse signal wave waveform of the rest section is matched with the section of waveform chopped by the dimming controller;
the dimming controller monitors the pulse signal wave conditions of all the dimming signal generators, and if the pulse signal waves output by the dimming signal generators are detected, the dimming controller executes the action of adjusting the brightness or switching on and off the light source load.
2. A dimming method for dimming by monitoring a waveform of a circuit according to claim 1, wherein: the dimmer control chops the front end of each half-cycle waveform.
3. A dimming method for dimming by monitoring a waveform of a circuit according to claim 1, wherein: the pulse signal wave is superposed with the chopped wave form generated by the flowing dimming controller to form a power supply electric wave.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010267778.4A CN111491420A (en) | 2020-04-08 | 2020-04-08 | Dimming method for realizing dimming through monitoring circuit waveform |
| AU2020101340A AU2020101340A4 (en) | 2020-04-08 | 2020-07-13 | A method of dimming by monitoring circuit waveform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010267778.4A CN111491420A (en) | 2020-04-08 | 2020-04-08 | Dimming method for realizing dimming through monitoring circuit waveform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111491420A true CN111491420A (en) | 2020-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010267778.4A Withdrawn CN111491420A (en) | 2020-04-08 | 2020-04-08 | Dimming method for realizing dimming through monitoring circuit waveform |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111491420A (en) |
| AU (1) | AU2020101340A4 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112738942A (en) * | 2020-12-31 | 2021-04-30 | 佛山市陆莫斯电子有限公司 | Dimming method capable of adjusting brightness and color temperature simultaneously |
-
2020
- 2020-04-08 CN CN202010267778.4A patent/CN111491420A/en not_active Withdrawn
- 2020-07-13 AU AU2020101340A patent/AU2020101340A4/en not_active Ceased
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112738942A (en) * | 2020-12-31 | 2021-04-30 | 佛山市陆莫斯电子有限公司 | Dimming method capable of adjusting brightness and color temperature simultaneously |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2020101340A4 (en) | 2020-08-20 |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200804 |
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| WW01 | Invention patent application withdrawn after publication |