CN102468769A - Alternating-current network communication system - Google Patents
Alternating-current network communication system Download PDFInfo
- Publication number
- CN102468769A CN102468769A CN2010105516742A CN201010551674A CN102468769A CN 102468769 A CN102468769 A CN 102468769A CN 2010105516742 A CN2010105516742 A CN 2010105516742A CN 201010551674 A CN201010551674 A CN 201010551674A CN 102468769 A CN102468769 A CN 102468769A
- Authority
- CN
- China
- Prior art keywords
- signal
- communication system
- network communication
- silicon controlled
- modulation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
The invention relates to an alternating-current network communication system, comprising a modulation switch which is connected to an alternating-current input power source, an alternating-current/direct current (AC/DC) conversion module which is arranged at an electrical appliance side which is accessed into the alternating-current network, and a signal recognition module, wherein the modulation switch comprises a micro-controller unit (MCU) module, a power switch and controlled silicon, which are serially connected with each other; the MCU module is connected to a control electrode of the controlled silicon so as to control the controlled silicon to switch between a starting state and a modulating state based on threshold voltage of the controlled silicon. The AC/DC conversion module is used for receiving an alternating-current input signal and converting the received alternating-current input signal into a detection signal in the control of the modulation switch. The signal recognition module is used for receiving the detection signal, and converting the detection signal into a communication signal for communicating with the modulation switch and the electrical appliance based on set communication protocol. Unnecessary signal can be filtered and communication stability and reliability can be increased by implementation of the invention.
Description
Technical field
The present invention relates to communication system, more particularly, relate to a kind of AC network communication system.
Background technology
In traditional alternating current network, live wire and ground wire can only provide energy for electrical appliance, and can't transmit signal to electrical appliance.The necessary control input all is positioned at electrical appliance self and all is the direct-flow input signal under the low-voltage.In order to address this problem; The applying date is on July 16th, 2009; The application for a patent for invention CN200910108765.6 of " AC network communication system " by name provides a kind of AC network communication system; It adopts modulation switch between diode path and regular path, to switch (as shown in Figure 1), through generation full wave rectified signal and halfwave rectifier signal on the AC/DC modular converter, thus the purpose that realization is communicated by letter with electrical equipment.The advantage of this technical scheme is that the modulation system of signal is simple, is easy to modulation and demodulation.But its transmission rate is because of being limited by hot voltage concussion frequency; Accomplishing a half-wave transmission needs the time (as shown in Figure 2) of 20ms; And the transmission of accomplishing once " 0 ", " 1 " signal needs a plurality of continuous half-wave voltage signal, and the time that needs is longer, so its traffic rate is far below 50Hz.Therefore, it is half the to see under the half-wave state that from the angle of efficient the power supply capacity on the electrical network has descended, and in practical application, possibly cause some electrical appliance can't operate as normal.
Therefore, need a kind of communication system of AC network more efficiently with speed that improves communication and the influence that reduces mains supply.
Summary of the invention
The technical problem that the present invention will solve is, and is lower to the efficient of the AC network communication system of prior art, and the defective that communication speed is slower provides a kind of and has higher traffic rate and to the less efficient AC network communication system of mains supply influence.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of AC network communication system, comprising:
Be connected to the modulation switch of alternating current input power supplying, be arranged on the AC/DC modular converter and the signal identification module of the electrical equipment side that is linked into said AC network;
Said modulation switch comprises the MCU module; Mains switch that is one another in series and controllable silicon; Wherein said MCU module is connected to the said silicon controlled control utmost point, and then controls said controllable silicon based on said silicon controlled threshold voltage and between opening and modulation condition, switch;
Said AC/DC modular converter is used under the control of said modulation switch, receiving ac input signal and converting the said ac input signal that receives to detection signal;
Said signal identification module is used to receive said detection signal, and based on the communication protocol of setting said detection signal is converted to and to be used for the signal of communication that modulation switch is communicated by letter with appliance chamber.
In AC network communication system of the present invention, the moving contact of said mains switch is connected to the AC power end, and closing contact is connected to said silicon controlled anode, and said silicon controlled negative electrode is connected to the AC/DC module.
In AC network communication system of the present invention, the moving contact of said mains switch is connected to the AC power end, and closing contact is connected to said silicon controlled negative electrode, and said silicon controlled anode is connected to the AC/DC module.
In AC network communication system of the present invention, said AC/DC modular converter comprises the rectification full-bridge, direct current output diode and direct current output capacitance, modulation condition output diode, modulation condition output capacitance and first resistance;
The first input end of wherein said rectification full-bridge is connected to AC power through said modulation switch; Second input is connected to and exchanges ground; First output of said rectification full-bridge is connected to the anode of direct current output diode and the anode of said modulation condition output diode; The negative electrode of said direct current output diode is connected to the positive pole of direct current output capacitance; The negative pole of said direct current output capacitance is connected to second output of said rectification full-bridge and the negative pole of said modulation condition output capacitance, and the negative electrode of said modulation condition output diode is connected to the anode of modulation condition output capacitance, and said first resistance is connected to the two ends of said modulation condition output capacitance.
In AC network communication system of the present invention; Said AC/DC modular converter further comprises transformer; One end on the former limit of wherein said transformer is connected to AC power through said modulation switch; The other end on the former limit of said transformer is connected to and exchanges ground, and first and second inputs of said rectification full-bridge are connected to the two ends of the secondary of transformer.
In AC network communication system of the present invention, further comprise the feedback information module that is arranged on the electrical equipment side, be used to judge and feed back the communications status of electrical equipment, the communications status of wherein said electrical equipment comprises idle condition, accepting state and executing state.
In AC network communication system of the present invention, said signal identification module receives first detection signal that produces based on said silicon controlled first threshold voltage with formation logic 0 signal; Said signal identification module receives second detection signal that produces based on said silicon controlled second threshold voltage to become living logical one signal.
In AC network communication system of the present invention, said signal identification module receives the 3rd detection signal that produces based on said silicon controlled the 3rd threshold voltage and identifies the initiation communication signal that valid function begins to generate; Said signal identification module receives the 4th detection signal that produces based on said silicon controlled the 4th threshold voltage and identifies the end signal of communication that valid function finishes to generate.
In AC network communication system of the present invention, the scope of said silicon controlled first threshold voltage, second threshold voltage, the 3rd threshold voltage and the 4th threshold voltage is 20V-200V.
The AC network communication system of embodiment of the present invention; Through modulation switch is improved; Solve the problem that original traffic rate is subject to the voltage concussion frequency of alternating current input power supplying, improved traffic rate greatly, and because the duty ratio of directly regulating detection signal through the threshold voltage of setting reverse-blocking tetrode thyristor; Variation by the detection signal waveform duty ratio comes Data transmission; So the filter capacitor of electrical equipment end not only can not destroy the transfer of data of communication, on the contrary can the unnecessary noise of filtering, increase the stability and the reliability of communication.
Description of drawings
To combine accompanying drawing and embodiment that the present invention is described further below, in the accompanying drawing:
Fig. 1 is the circuit theory diagrams of the modulation switch of prior art;
Fig. 2 is the signal transmission sketch map of the modulation switch of prior art;
Fig. 3 is the circuit theory diagrams of the modulation switch of AC network communication system of the present invention;
Fig. 4 is the theory diagram of AC network communication system of the present invention;
Fig. 5 is the circuit theory diagrams of an embodiment of AC network communication system of the present invention;
Fig. 6 is the circuit theory diagrams of another embodiment of AC network communication system of the present invention;
Fig. 7 is the signal transmission sketch map of AC network communication system of the present invention;
Fig. 8 is the communication example of AC network communication system of the present invention;
Fig. 9 is the feedback information sketch map according to AC network communication system of the present invention.
Embodiment
Fig. 4 is the theory diagram of AC network communication system of the present invention.As shown in Figure 4, AC network communication system of the present invention comprises: be connected to the modulation switch of alternating current input power supplying, be arranged on the AC/DC modular converter and the signal identification module of the electrical equipment side that is linked into said AC network.Said MCU module is connected to the said silicon controlled control utmost point, and then controls said controllable silicon based on said silicon controlled threshold voltage and between opening and modulation condition, switch.Said AC/DC modular converter is used under the control of said modulation switch, receiving ac input signal and converting the said ac input signal that receives to detection signal; Said signal identification module is used to receive said detection signal, and based on the communication protocol of setting said detection signal is converted to and to be used for the signal of communication that modulation switch is communicated by letter with appliance chamber.
Fig. 3 shows the circuit theory diagrams of modulation switch of the present invention, and is as shown in Figure 3, and said modulation switch comprises the MCU module, mains switch that is one another in series and controllable silicon.The moving contact of wherein said mains switch is connected to the AC power end, and closing contact is connected to said silicon controlled anode, and said silicon controlled negative electrode is connected to the AC/DC module.
In another preferred embodiment of the present invention, also can be designed to, the moving contact of said mains switch is connected to the AC power end, and closing contact is connected to said silicon controlled negative electrode, and said silicon controlled anode is connected to the AC/DC module.
The control principle of above-mentioned two kinds of execution modes is basic identical, with the embodiment shown in Fig. 3 AC network communication system of the present invention is done further to introduce below.According to introduction of the present invention, it will be appreciated by those skilled in the art that the course of work and the principle of the AC network communication system that when the silicon controlled anode oppositely is connected with negative electrode, forms, this just no longer tired stating.
Fig. 5 is the circuit theory diagrams of an embodiment of AC network communication system of the present invention.As shown in Figure 5, said AC/DC modular converter comprises rectification full-bridge BR1, direct current output diode D1 and direct current output capacitance C1, modulation condition output diode D2, modulation condition output capacitance C2 and first resistance R.The first input end of said rectification full-bridge BR1 is connected to AC power through modulation switch, and second input is connected to and exchanges ground.First output of said rectification full-bridge BR1 is connected to the anode of direct current output diode D1 and the anode of said modulation condition output diode D2; The negative electrode of said direct current output diode D1 is connected to the positive pole of direct current output capacitance C1; The negative pole of said direct current output capacitance C1 is connected to second output of said rectification full-bridge BR1 and the negative pole of said modulation condition output capacitance C2; The negative electrode of said modulation condition output diode D2 is connected to the anode of modulation condition output capacitance C1, and said first resistance R is connected to the two ends of said modulation condition output capacitance C2.
In this embodiment, the direct current output capacitance C1 provide VD, value 10uF.Modulation condition output capacitance C2 and resistance R are used for the all-wave input, value 1pF and 10M.
Fig. 6 shows another embodiment of AC network communication system of the present invention.Its operating principle and structure and Fig. 5 are similar basically, and difference is that the embodiment shown in Fig. 6 further comprises the transformer T that is used to isolate.One end on the former limit of wherein said transformer T is connected to AC power through said modulation switch, and the other end on the former limit of said transformer is connected to and exchanges ground, and first and second inputs of said rectification full-bridge BR1 are connected to the two ends of the secondary of transformer T.
Except that the embodiment shown in Fig. 5 and 6; Also can adopt other mode to realize according to AC network communication system of the present invention; Concrete structure and operation principle can referring to; The applying date is on June 30th, 2009, and the application for a patent for invention CN 200910108431.9 and the applying date of " direct-flow controlling device in the AC system " by name are on July 16th, 2009, the description of the application for a patent for invention CN200910108765.6 of " AC network communication system " by name; These two pieces of patents are quoted in this combination, with for referencial use.
Fig. 7 is the signal transmission sketch map of AC network communication system of the present invention.Below in conjunction with Fig. 5 and Fig. 7 the operation principle of AC network communication system of the present invention is further described.Can modulate ac input signal with modulation switch shown in Figure 5, promptly the AC/DC modular converter at first converts the ac input signal that receives to phase modulated signal as shown in Figure 7 through rectifier bridge BR1.Convert this phase modulated signal to detection signal as shown in Figure 7 by direct current output diode D1 and direct current output capacitance C1, modulation condition output diode D2, modulation condition output capacitance C2 and first resistance R subsequently.And the signal identification module can receive this detection signal, thereby generates signal of communication based on this detection signal and predetermined communication protocol, thereby accomplishes more complicated signal transmission.
In the present invention; The silicon controlled threshold voltage can be set arbitrarily to be come ac input signal is modulated; But consider the problem of electrical appliance job stability in the practical application, therefore in a preferred embodiment of the invention, the silicon controlled threshold voltage ranges of choosing during modulation is between 20-200V.
Realize that the data communication on the electrical network at first must define communication time slot, promptly defining operation is counted signal of communication, logical zero and logical one.In addition, in the initial moment in order clearly to communicate by letter, can also define the initiation communication signal, i.e. " START " signal and end signal of communication, i.e. " END " signal.
In a preferred embodiment of the invention, said signal identification module receives first detection signal that produces based on said silicon controlled first threshold voltage with formation logic 0 signal; Said signal identification module receives second detection signal that produces based on said silicon controlled second threshold voltage to become living logical one signal.In a preferred embodiment more of the present invention, said signal identification module receives the 3rd detection signal that produces based on said silicon controlled the 3rd threshold voltage and identifies the initiation communication signal that valid function begins to generate; Said signal identification module receives the 4th detection signal that produces based on said silicon controlled the 4th threshold voltage and identifies the end signal of communication that valid function finishes to generate.Wherein, said first-Di, four threshold voltages are different, and its magnitude range can be between 20V-200V.In other preferred embodiments of the present invention, those skilled in the art also can generate different signals of communication thereby set different threshold voltages as required.
In the present invention; Because the duty ratio of directly regulating detection signal through the threshold voltage of setting reverse-blocking tetrode thyristor; Variation by the detection signal waveform duty ratio comes Data transmission; So the filter capacitor of electrical equipment end not only can not destroy the transfer of data of communication, on the contrary can the unnecessary noise of filtering, increase the stability and the reliability of communication.
Fig. 8 is the communication example of AC network communication system of the present invention.Communicating by letter of AC network communication system of the present invention described with Fig. 8 below in conjunction with Fig. 5.When not starting phase modulated, promptly do not set the silicon controlled threshold size, when the big or small arbitrarily ac signal of expression all can pass through.At this moment modulation switch can be modulated ac input signal, and the duty ratio of the detection signal that after the AC/DC module converts, generates is maximum, and expression does not have transfer of data at this moment.After setting the silicon controlled threshold size; Only the ac input signal greater than setting threshold could pass through (just, when having only ac input signal greater than a certain set point, just conducting of controllable silicon); Cause the duty ratio of detection signal to change thereupon; Therefore, this variation is thereupon by the identification of signal identification module, thus the signal of communication of the different implications of generation expression.Such as, said signal identification module receives based on first detection signal that produces greater than silicon controlled first threshold voltage 90V with formation logic 0 signal.Said signal identification module receives based on second detection signal that produces greater than the silicon controlled second threshold voltage 60V with formation logic 0 signal.
In other preferred embodiments of the present invention, those skilled in the art can be provided with " END " signal that expression finishes, " START " signal or the like as required.Said signal identification module receives based on first detection signal that produces greater than silicon controlled the 3rd threshold voltage 120V to generate the initiation communication signal.Said signal identification module receives based on the 4th detection signal that produces less than silicon controlled the 4th threshold voltage 200V and stops signal of communication to generate.
Because the restriction of AC network characteristic can only realize the one-way communication from the modulation switch to electrical equipment, and can't realize the communication from electrical equipment to the modulation switch.For this reason, can increase the feedback information module, and then adopt modes such as sound or light to feed back the signal that the people can receive at the electrical equipment end.Be illustrated in figure 9 as a kind of feedback system of the LED of employing lamp.The communications status of electrical equipment can be divided into " idle condition ", and " accepting state ", " executing state " 3 states can be used " lamp goes out ", and " flicker ", " Chang Liang " 3 kinds of modes show.In other embodiments of the invention, can also adopt display module to show " idle condition ", " accepting state ", " executing state ".In another embodiment of the present invention, can adopt the news Chinese percussion instrument to represent.For example, the news Chinese percussion instrument sends the sound of " dripping " and representes " accepting state ", sends the sound of " toot " and representes executing state ", do not represent " idle condition " and do not send sound.Those skilled in the art also can adopt other mode to represent different operation states as required.In another embodiment of the present invention, except communication state displaying, each electrical equipment also can comprise memory module, is used for according to instruction storage, Updates Information.
The AC network communication system of embodiment of the present invention; Through modulation switch is improved; Solve the problem that original traffic rate is subject to the voltage concussion frequency of alternating current input power supplying, improved traffic rate greatly, and because the duty ratio of directly regulating detection signal through the threshold voltage of setting reverse-blocking tetrode thyristor; Variation by the detection signal waveform duty ratio comes Data transmission; So the filter capacitor of electrical equipment end not only can not destroy the transfer of data of communication, on the contrary can the unnecessary noise of filtering, increase the stability and the reliability of communication.
Though the present invention describes through specific embodiment, it will be appreciated by those skilled in the art that, without departing from the present invention, can also carry out various conversion and be equal to alternative the present invention.Therefore, the present invention is not limited to disclosed specific embodiment, and should comprise the whole execution modes that fall in the claim scope of the present invention.
Claims (9)
1. an AC network communication system is characterized in that, comprising:
Be connected to the modulation switch of alternating current input power supplying, be arranged on the AC/DC modular converter and the signal identification module of the electrical equipment side that is linked into said AC network;
Said modulation switch comprises the MCU module; Mains switch that is one another in series and controllable silicon; Wherein said MCU module is connected to the said silicon controlled control utmost point, and then controls said controllable silicon based on said silicon controlled threshold voltage and between opening and modulation condition, switch;
Said AC/DC modular converter is used under the control of said modulation switch, receiving ac input signal and converting the said ac input signal that receives to detection signal;
Said signal identification module is used to receive said detection signal, and based on the communication protocol of setting said detection signal is converted to and to be used for the signal of communication that modulation switch is communicated by letter with appliance chamber.
2. AC network communication system according to claim 1 is characterized in that the moving contact of said mains switch is connected to the AC power end, and closing contact is connected to said silicon controlled anode, and said silicon controlled negative electrode is connected to the AC/DC module.
3. AC network communication system according to claim 1 is characterized in that the moving contact of said mains switch is connected to the AC power end, and closing contact is connected to said silicon controlled negative electrode, and said silicon controlled anode is connected to the AC/DC module.
4. AC network communication system according to claim 1 is characterized in that, said AC/DC modular converter comprises the rectification full-bridge, direct current output diode and direct current output capacitance, modulation condition output diode, modulation condition output capacitance and first resistance;
The first input end of wherein said rectification full-bridge is connected to AC power through said modulation switch; Second input is connected to and exchanges ground; First output of said rectification full-bridge is connected to the anode of direct current output diode and the anode of said modulation condition output diode; The negative electrode of said direct current output diode is connected to the positive pole of direct current output capacitance; The negative pole of said direct current output capacitance is connected to second output of said rectification full-bridge and the negative pole of said modulation condition output capacitance, and the negative electrode of said modulation condition output diode is connected to the anode of modulation condition output capacitance, and said first resistance is connected to the two ends of said modulation condition output capacitance.
5. AC network communication system according to claim 4; It is characterized in that; Said AC/DC modular converter further comprises transformer; One end on the former limit of wherein said transformer is connected to AC power through said modulation switch, and the other end on the former limit of said transformer is connected to and exchanges ground, and first and second inputs of said rectification full-bridge are connected to the two ends of the secondary of transformer.
6. AC network communication system according to claim 1; It is characterized in that; Further comprise the feedback information module that is arranged on the electrical equipment side, be used to judge and feed back the communications status of electrical equipment, the communications status of wherein said electrical equipment comprises idle condition, accepting state and executing state.
7. according to the described AC network communication system of any claim among the claim 1-6, it is characterized in that said signal identification module receives first detection signal that produces based on said silicon controlled first threshold voltage with formation logic 0 signal; Said signal identification module receives second detection signal that produces based on said silicon controlled second threshold voltage to become living logical one signal.
8. AC network communication system according to claim 7 is characterized in that, said signal identification module receives the 3rd detection signal that produces based on said silicon controlled the 3rd threshold voltage and identifies the initiation communication signal that valid function begins to generate; Said signal identification module receives the 4th detection signal that produces based on said silicon controlled the 4th threshold voltage and identifies the end signal of communication that valid function finishes to generate.
9. AC network communication system according to claim 8 is characterized in that, the scope of said silicon controlled first threshold voltage, second threshold voltage, the 3rd threshold voltage and the 4th threshold voltage is 20V-200V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010551674.2A CN102468769B (en) | 2010-11-19 | 2010-11-19 | Communication system of alternating-current network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010551674.2A CN102468769B (en) | 2010-11-19 | 2010-11-19 | Communication system of alternating-current network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102468769A true CN102468769A (en) | 2012-05-23 |
| CN102468769B CN102468769B (en) | 2015-09-02 |
Family
ID=46072035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010551674.2A Active CN102468769B (en) | 2010-11-19 | 2010-11-19 | Communication system of alternating-current network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102468769B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102044980A (en) * | 2009-10-21 | 2011-05-04 | 辉芒微电子（深圳）有限公司 | Alternating current grid communication system |
| CN102779402A (en) * | 2012-07-19 | 2012-11-14 | 陈幼珠 | Control method and control device based on cutdown modulation of power signals |
| CN103812764A (en) * | 2012-11-09 | 2014-05-21 | 江苏省电力公司连云港供电公司 | Electrical monitoring equipment multiprotocol gateway |
| TWI661688B (en) * | 2017-03-30 | 2019-06-01 | 集邦聯合製造股份有限公司 | Communication method and device based on power line |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1344329A1 (en) * | 2000-12-21 | 2003-09-17 | The Autonomous Well Company Ltd. | Power line communications system |
| CN101090282A (en) * | 2006-06-15 | 2007-12-19 | 杭州瑞琦信息技术有限公司 | Power carrier communication circuit capable of overcome compensating capacitor |
| US7391168B1 (en) * | 2005-01-13 | 2008-06-24 | Universal Lighting Technologies, Inc. | Digital control of electronic ballasts using AC power lines as a communication medium |
| US20090096424A1 (en) * | 2004-12-22 | 2009-04-16 | Joseph Mario Ambrosio | Battery management and equalization system for batteries using power line carrier communications |
| CN101635522A (en) * | 2009-06-26 | 2010-01-27 | 江苏利通电子有限公司 | Switch power supply for powerline carrier communication modem |
| CN102044980A (en) * | 2009-10-21 | 2011-05-04 | 辉芒微电子（深圳）有限公司 | Alternating current grid communication system |
-
2010
- 2010-11-19 CN CN201010551674.2A patent/CN102468769B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1344329A1 (en) * | 2000-12-21 | 2003-09-17 | The Autonomous Well Company Ltd. | Power line communications system |
| US20090096424A1 (en) * | 2004-12-22 | 2009-04-16 | Joseph Mario Ambrosio | Battery management and equalization system for batteries using power line carrier communications |
| US7391168B1 (en) * | 2005-01-13 | 2008-06-24 | Universal Lighting Technologies, Inc. | Digital control of electronic ballasts using AC power lines as a communication medium |
| CN101090282A (en) * | 2006-06-15 | 2007-12-19 | 杭州瑞琦信息技术有限公司 | Power carrier communication circuit capable of overcome compensating capacitor |
| CN101635522A (en) * | 2009-06-26 | 2010-01-27 | 江苏利通电子有限公司 | Switch power supply for powerline carrier communication modem |
| CN102044980A (en) * | 2009-10-21 | 2011-05-04 | 辉芒微电子（深圳）有限公司 | Alternating current grid communication system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102044980A (en) * | 2009-10-21 | 2011-05-04 | 辉芒微电子（深圳）有限公司 | Alternating current grid communication system |
| CN102044980B (en) * | 2009-10-21 | 2013-02-13 | 辉芒微电子（深圳）有限公司 | Alternating current grid communication system |
| CN102779402A (en) * | 2012-07-19 | 2012-11-14 | 陈幼珠 | Control method and control device based on cutdown modulation of power signals |
| CN102779402B (en) * | 2012-07-19 | 2015-04-22 | 陈幼珠 | Control method and control device based on cutdown modulation of power signals |
| CN103812764A (en) * | 2012-11-09 | 2014-05-21 | 江苏省电力公司连云港供电公司 | Electrical monitoring equipment multiprotocol gateway |
| TWI661688B (en) * | 2017-03-30 | 2019-06-01 | 集邦聯合製造股份有限公司 | Communication method and device based on power line |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102468769B (en) | 2015-09-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102752940B (en) | High-efficiency LED (light-emitting diode) drive circuit and drive method thereof | |
| CN108811261B (en) | A kind of visible light communication modulator approach of single-stage LED drive circuit | |
| CN103298221B (en) | Dimming circuit and method of LED (Light Emitting Diode) lighting lamp | |
| CN1729722B (en) | Supply assembly for a LED lighting module | |
| CN103841725B (en) | To release control module, controllable silicon light modulation LED drive circuit and system | |
| CN104883064B (en) | Power Supply Device And Lighting Apparatus Using The Same | |
| CN101977478A (en) | Digital dimming control method and system for two-wire fluorescent lamps | |
| CN101437342A (en) | Low energy consumption monopole electronic switching circuit and micro energy consumption brightening circuit of indicating lamp | |
| CN201667749U (en) | LED dimming control system | |
| CN102468769A (en) | Alternating-current network communication system | |
| CN101909376B (en) | High-power LED drive circuit | |
| CN106797686B (en) | Boost conversion grade switch controller | |
| CN201042100Y (en) | Light-adjusting control signal transmission circuit for electronic light-adjusting rectifier | |
| CN106489303B (en) | The device and method of phase cut power control | |
| TWI276295B (en) | Switch power | |
| CN211184370U (en) | Low-power consumption single live wire switch light modulator | |
| CN104994638A (en) | Device for remotely adjusting brightness of LED lamp based on controllable rectifying waves | |
| CN101938869B (en) | Direct current (DC) control device in alternating current (AC) system | |
| CN106922052A (en) | The LED control device that a kind of compatible voltage light modulation is dimmed with PWM | |
| CN203788514U (en) | Discharge control module, silicon controlled rectifier light dimming LED drive circuit and system | |
| CN102025285B (en) | Alternating-current power grid communication control system | |
| CN105792437B (en) | A kind of LED drive circuit | |
| CN205912305U (en) | Compatible multistage of silicon controlled rectifier LED intelligence power of adjusting luminance | |
| CN102045087B (en) | Simplified alternating current grid communication system | |
| CN102044980B (en) | Alternating current grid communication system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 518057, room 10, building 5-8, Changhong science and technology building, twelve South tech Road, Nanshan District Science Park, Shenzhen, Guangdong Patentee after: Huimang Microelectronics (Shenzhen) Co.,Ltd. Address before: 518057, building 10, building 5-8, Changhong technology building, twelve South tech Road, Nanshan District science and Technology Park, Shenzhen, Guangdong Patentee before: FREMONT MICRO DEVICES (SZ) Ltd. |