CN103051461B - A kind of Homeplug power-supply device - Google Patents
A kind of Homeplug power-supply device Download PDFInfo
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- CN103051461B CN103051461B CN201210512641.6A CN201210512641A CN103051461B CN 103051461 B CN103051461 B CN 103051461B CN 201210512641 A CN201210512641 A CN 201210512641A CN 103051461 B CN103051461 B CN 103051461B
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Abstract
The invention discloses a kind of Homeplug power-supply device, it comprises alternating current fire wire input, alternating current zero line input, AC-DC change-over circuit, the first signal coupling circuit, secondary signal coupling circuit, positive source output and power cathode output; Two inputs of the first signal coupling circuit are connected with alternating current zero line input with alternating current fire wire input respectively, and two outputs are connected to positive source output and power cathode output respectively; Two inputs of zero cross detection circuit are connected with alternating current zero line is defeated with alternating current fire wire input respectively, and output is connected to AC-DC change-over circuit; Two inputs of AC-DC change-over circuit are connected with alternating current zero line input with alternating current fire wire input respectively, and two outputs are connected with two inputs of secondary signal coupling circuit respectively; Two outputs of secondary signal coupling circuit are connected to positive source output and power cathode output respectively.Present invention achieves separate type and the Homeplug power-supply device of low-voltage power supply.
Description
Technical field
The present invention relates to field of power communication, particularly a kind of Homeplug power-supply device.
Background technology
Homeplug, has another name called electric power networks bridger, is that one is modulated to network signal on electric wire, utilizes existing electric wire to solve the equipment of network layout problem.At present, Homeplug is as third generation networks transmission equipment, and it is convenient that the high speed not only with netting twine stablizes the movement also possessing wireless network.
In Technology of Power Line Communication, Homeplug application is very extensive, it utilizes electric wire to transmit high-frequency signal, the high-frequency signal of carrying information is loaded on electric current, then wire transfer is used, the modulator-demodulator of reception information again high-frequency signal from " decomposition " electric current out, and is sent on computer or phone, thus on the basis not needing rewiring, realizes online, makes a phone call and watch the multiple application such as IPTV, use video monitoring equipment.
Present power modem device is Direct Plug-In substantially, and alternating current 220V directly inputs, or civil power directly inputs desktop type power modem device.
As shown in Figure 1, it is independently that a kind of zero cross detection circuit of Homeplug power-supply device of prior art, electric-power wire communication signal and power supply three tunnel export, and it exports 5 lines.Two is Homeplug signal of communication, and one is zero passage detection signal, and other two are respectively VDD-to-VSS.There are the following problems for the Homeplug power-supply device of prior art: slotting wall equipment can only place slotting wall position, cannot move, dumb; If lengthen the desktop type Homeplug of AC power cord, then there is the danger of high-tension electricity; The Homeplug of separate power supply is adopted to have fail safe, can suitably movement, but five core power connections are complicated, and single core interface that cannot be general, cost is high.And cabling is long, power supply and holding wire intercouple, and disturb excessive.
Summary of the invention
In order to solve the problems referred to above of prior art, be necessary to provide a kind of separate type and the Homeplug power-supply device of low-voltage power supply.
The technical scheme that technical solution problem of the present invention provides is:
A kind of Homeplug power-supply device, it comprises alternating current fire wire input, alternating current zero line input, AC-DC change-over circuit, the first signal coupling circuit, secondary signal coupling circuit, positive source output and power cathode output; Two inputs of the first signal coupling circuit are connected with alternating current zero line input with alternating current fire wire input respectively, and two outputs are connected to positive source output and power cathode output respectively; Two inputs of AC-DC change-over circuit are connected with alternating current zero line input with alternating current fire wire input respectively, and two outputs are connected with two inputs of secondary signal coupling circuit respectively, and it comprises an output feedack module; Two inputs of zero cross detection circuit are connected with alternating current zero line is defeated with alternating current fire wire input respectively, and output is connected to the output feedack module of AC-DC change-over circuit; Two outputs of secondary signal coupling circuit are connected to positive source output and power cathode output respectively.
Wherein, described first signal coupling circuit comprises communications transformer T1, electric capacity C1, electric capacity C2 and electric capacity C4, electric capacity C4 is connected between power firestreak input and an input of communications transformer T1, another input of communications transformer T1 is connected with zero line input, and two outputs of communications transformer T1 are connected to positive source output and power cathode output respectively by electric capacity C1 and electric capacity C2.
Wherein, secondary signal coupling circuit comprises common mode inductance T2, electric capacity C3, inductance L 1 and inductance L 2, two inputs of common mode inductance T2 are connected with two outputs of AC-DC change-over circuit respectively, two outputs of common mode inductance T2 are connected to positive source output and power cathode output respectively by inductance L 1 and inductance L 2, and electric capacity C3 is connected with two outputs of common mode inductance T2 respectively.
Wherein, alternating current fire wire input and alternating current zero line input are respectively used to be connected with the live wire of AC power (L) and zero line (N).
Wherein, positive source output and power cathode output are respectively used to be connected with ground wire link with the data wire link of outside single-core plug.
Compared with prior art, the Homeplug that Homeplug power-supply device of the present invention provides separate type is powered, and achieves low tension when powering, ensures effective signal of communication, for independent energizing power cat equipment provides new trial simultaneously.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of the Homeplug power-supply device of prior art.
Fig. 2 is the circuit theory diagrams of Homeplug power-supply device of the present invention.
Embodiment
As shown in Figure 2, the circuit theory diagrams of Homeplug power-supply device of the present invention, it comprises alternating current fire wire input, alternating current zero line input, AC-DC change-over circuit, the first signal coupling circuit, secondary signal coupling circuit, positive source output and power cathode output.AC-DC change-over circuit comprises output feedack module.First signal coupling circuit comprises communications transformer T1, electric capacity C1, electric capacity C2 and electric capacity C4.Secondary signal coupling circuit comprises common mode inductance T2, electric capacity C3, inductance L 1 and inductance L 2.
Alternating current fire wire input and alternating current zero line input are respectively used to be connected with zero line (N) with the live wire of AC power (L).Two inputs of the first signal coupling circuit are connected with alternating current zero line input with alternating current fire wire input respectively, and two outputs are connected to positive source output and power cathode output respectively.Two inputs of zero cross detection circuit are connected with alternating current zero line is defeated with alternating current fire wire input respectively, and output is connected with the output feedack module of AC-DC change-over circuit.Two inputs of AC-DC change-over circuit are connected with alternating current zero line input with alternating current fire wire input respectively, and two outputs are connected with two inputs of secondary signal coupling circuit respectively.Two outputs of secondary signal coupling circuit are connected to positive source output and power cathode output respectively.Positive source output and power cathode output are respectively used to the data wire link and the ground wire link that are connected to outside single-core plug.
Electric capacity C4 is connected between power firestreak input and an input of communications transformer T1, another input of communications transformer T1 is connected with zero line input, and two outputs of communications transformer T1 are connected to positive source output and power cathode output respectively by electric capacity C1 and electric capacity C2.Secondary signal coupling circuit comprises common mode inductance T2, electric capacity C3, inductance L 1 and inductance L 2 further.Two inputs of common mode inductance T2 are connected with two outputs of AC-DC change-over circuit respectively, two outputs of common mode inductance T2 are connected to positive source output and power cathode output respectively by inductance L 1 and inductance L 2, and electric capacity C3 is connected with two outputs of common mode inductance T2 respectively.
Zero cross detection circuit is used for providing power line zero-crossing examination signal.AC-DC change-over circuit is used for 220V electric main to be converted to DC power supply, and the DC power supply after conversion provides mainly 12V, 5V.The effect of output feedack module is according to feedback adjusting output voltage, by gathering zero passage detection signal, the direct current power source voltage that AC-DC change-over circuit is exported does cyclic variation with the period of change of alternating current, thus makes power modem device restore zero cross signal by the cyclic variation of direct current power source voltage.The effect of electric capacity C4 is isolation alternating current, provides the coupling path of electric-power wire communication signal simultaneously.The effect of communications transformer T1 is to provide the coupling path of electric-power wire communication signal.While the effect of electric capacity C1, C2 is to provide coupling path, isolated DC out-put supply is to the feedback of communications transformer T1.Common mode inductance T2, electric capacity C3, inductance L 1 forms low pass filter together with inductance L 2, isolation high-frequency communication signal.
First signal coupling circuit will to be coupled in alternating current the signal extraction of two-way plc communication out, be transported to the cathode output end of Homeplug power-supply device, by zero passage detection signal coupling in the output cycle of DC power supply, thus the two-way achieving Homeplug power-supply device exports, and can be connected with outside single-core plug.
Compared with prior art, the Homeplug that Homeplug power-supply device of the present invention provides separate type is powered, and achieves low tension when powering, ensures effective signal of communication, for independent energizing power cat equipment provides new trial simultaneously.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to protection scope of the present invention.
Claims (3)
1. a Homeplug power-supply device, its spy is being, comprises alternating current fire wire input, alternating current zero line input, AC-DC change-over circuit, zero cross detection circuit, the first signal coupling circuit, secondary signal coupling circuit, positive source output and power cathode output;
Two inputs of the first signal coupling circuit are connected with alternating current zero line input with alternating current fire wire input respectively, and two outputs are connected to positive source output and power cathode output respectively; Described first signal coupling circuit comprises communications transformer T1, electric capacity C1, electric capacity C2 and electric capacity C4, electric capacity C4 is connected between alternating current fire wire input and an input of communications transformer T1, another input of communications transformer T1 is connected with alternating current zero line input, and two outputs of communications transformer T1 are connected to positive source output and power cathode output respectively by electric capacity C1 and electric capacity C2;
Two inputs of AC-DC change-over circuit are connected with alternating current zero line input with alternating current fire wire input respectively, and two outputs are connected with two inputs of secondary signal coupling circuit respectively, and it comprises an output feedack module;
Two inputs of zero cross detection circuit are connected with alternating current zero line input with alternating current fire wire input respectively, and output is connected to the output feedack module of AC-DC change-over circuit;
Two outputs of secondary signal coupling circuit are connected to positive source output and power cathode output respectively, secondary signal coupling circuit comprises common mode inductance T2, electric capacity C3, inductance L 1 and inductance L 2, two inputs of common mode inductance T2 are connected with two outputs of AC-DC change-over circuit respectively, two outputs of common mode inductance T2 are connected to positive source output and power cathode output respectively by inductance L 1 and inductance L 2, and electric capacity C3 is connected with two outputs of common mode inductance T2 respectively.
2. Homeplug power-supply device according to claim 1, is characterized in that, alternating current fire wire input and alternating current zero line input are respectively used to be connected with the live wire of AC power (L) and zero line (N).
3. Homeplug power-supply device according to claim 1, is characterized in that, positive source output and power cathode output are respectively used to be connected with ground wire link with the data wire link of outside single-core plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210512641.6A CN103051461B (en) | 2012-12-04 | 2012-12-04 | A kind of Homeplug power-supply device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210512641.6A CN103051461B (en) | 2012-12-04 | 2012-12-04 | A kind of Homeplug power-supply device |
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| Publication Number | Publication Date |
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| CN103051461A CN103051461A (en) | 2013-04-17 |
| CN103051461B true CN103051461B (en) | 2016-01-20 |
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| CN201210512641.6A Expired - Fee Related CN103051461B (en) | 2012-12-04 | 2012-12-04 | A kind of Homeplug power-supply device |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090013359A (en) * | 2007-08-01 | 2009-02-05 | 한국전기연구원 | Circuit for reducing stand by power consumption in power supply device having power line communication function |
| 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 |
| CN101908911A (en) * | 2010-08-31 | 2010-12-08 | 刘利华 | Intelligent home control system and method for networking by utilizing power line and remote controllers |
| CN201797502U (en) * | 2010-07-17 | 2011-04-13 | 刘利华 | Intelligent touch switch for power line carrier network |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6965303B2 (en) * | 2002-12-10 | 2005-11-15 | Current Technologies, Llc | Power line communication system and method |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090013359A (en) * | 2007-08-01 | 2009-02-05 | 한국전기연구원 | Circuit for reducing stand by power consumption in power supply device having power line communication function |
| 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 |
| CN201797502U (en) * | 2010-07-17 | 2011-04-13 | 刘利华 | Intelligent touch switch for power line carrier network |
| CN101908911A (en) * | 2010-08-31 | 2010-12-08 | 刘利华 | Intelligent home control system and method for networking by utilizing power line and remote controllers |
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| CN103051461A (en) | 2013-04-17 |
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Effective date of registration: 20200115 Address after: Room 101, building 2, No.97 Maoshan Road, Chang'an Town, Dongguan City, Guangdong Province Patentee after: Dongguan tengze Electronic Technology Co., Ltd Address before: 518001, Guangdong, Nanshan District province Shenzhen science and Technology Park North District, Tsinghua information port, block A, building 9 Patentee before: Shenzhen Allwins Technology Corporation |
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