CN205005048U - Low pressure direct current carrier circuit - Google Patents
Low pressure direct current carrier circuit Download PDFInfo
- Publication number
- CN205005048U CN205005048U CN201520833370.3U CN201520833370U CN205005048U CN 205005048 U CN205005048 U CN 205005048U CN 201520833370 U CN201520833370 U CN 201520833370U CN 205005048 U CN205005048 U CN 205005048U
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- triode
- coupled device
- light coupled
- power supply
- supply circuits
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Abstract
The embodiment of the utility model discloses low pressure direct current carrier circuit has solved and has expected much to the power at present, and voltage needs relatively stablely, and the very big technical problem of the error voltage fluctuation who leads to the time through simple and easy low pressure direct current carrier circuit, utilizes low pressure dc supply's electric wire both to realize supplying power the function realizing communication function again promptly. The embodiment of the utility model provides an include: supply circuit with receive the circuit, supply circuit includes: MCU1, triode Q1, triode Q2 and optical coupler spare IC1, included by the circuit: MCU2, rectifier bridge BRID1, triode Q3 and optical coupler spare IC2.
Description
Technical field
The utility model relates to electronic circuit technology field, particularly relates to a kind of low-voltage direct carrier circuit.
Background technology
Low-voltage DC supply circuit between equipment, product modules and communication line need independent line, between equipment, product modules supply lines and order wire public, look neat and artistic, line is few, cost is also low, power line carrier is exactly the PLC that the large daily life of a family is said, utilizes the supply line exchanged to realize communication.
At present, direct current carrier major part is all that when making logical zero, supply line also has certain voltage, powers to receiving end by the level of logical zero and logical one is raised.
But above-mentioned direct current carrier major part is all power by the rising of the level of logical zero and logical one is realized receiving end, due to high to power requirement, voltage needs relatively stable, thus the technical problem that when causing voltage fluctuation, error is very large.
Utility model content
The utility model embodiment provides a kind of low-voltage direct carrier circuit, solve high to power requirement at present, voltage needs relatively stable, and the technical problem that when voltage fluctuation caused, error is very large, by easy low-voltage direct carrier circuit, namely utilize the electric wire of low-voltage DC supply both to realize function of supplying power, realize communication function again.
A kind of low-voltage direct carrier circuit that the present embodiment provides, comprising:
Power supply circuits and parasite power supplier;
Described power supply circuits comprise: MCU1, triode Q1, triode Q2 and Light Coupled Device IC1;
Described parasite power supplier comprises: MCU2, rectifier bridge BRID1, triode Q3 and Light Coupled Device IC2;
Described MCU1 is connected with the base terminal of described triode Q1, described triode Q1 emitter terminal ground connection, described triode Q1 collector terminal is connected with the base terminal of described triode Q2, the collector terminal of described triode Q2 is connected with the former limit of described Light Coupled Device IC1, the collector terminal of described triode Q2 is also connected with described power supply circuits one output, and described Light Coupled Device IC1 secondary is connected with another output of described power supply circuits;
The described output of described power supply circuits is connected with described parasite power supplier two input, the described input of described parasite power supplier is connected with described rectifier bridge BRID1, described rectifier bridge BRID1 is also connected with the emitter terminal of described triode Q3, the base terminal of described triode Q3 is all connected with described Light Coupled Device IC2 secondary with emitter terminal, and the former limit of described Light Coupled Device IC2 is connected with described MCU2.
Preferably, the collector terminal of described triode Q3 is also connected with the former limit of described Light Coupled Device IC3, and described Light Coupled Device IC3 secondary is connected with described MCU.
Preferably, described Light Coupled Device IC3 secondary also by resistance R9 and the resistance R7 of series connection mutually, is connected with the former limit of described Light Coupled Device IC2.
Preferably, described Light Coupled Device IC3 secondary and the former limit of described Light Coupled Device IC2 are all held with the TXD of described MCU2 and are connected.
Preferably, the former limit of described Light Coupled Device IC3 is held with V-IN and is connected.
Preferably, the base terminal of described triode Q1 is held by the TXD of resistance R1 and described MCU1.
Preferably, described Light Coupled Device IC1 secondary is held with the RXD of described MCU1 and is connected.
Preferably, the collector terminal of described triode Q1 is also connected with described power supply circuits power end VDD with the resistance R2 mutually connected and resistance R3.
Preferably, the VCC-1 that described Light Coupled Device IC1 secondary is also used for powering to described MCU1 with described power supply circuits holds and is connected;
The VCC-2 that the main limit of described Light Coupled Device IC2 is also used for powering to described MCU2 with described power supply circuits holds and is connected;
The VCC-2 that described Light Coupled Device IC3 secondary is also used for powering to described MCU2 with described power supply circuits holds and is connected.
Preferably, described rectifier bridge BRID1 is anti-reverse rectifier bridge.
As can be seen from the above technical solutions, the utility model embodiment has the following advantages:
A kind of low-voltage direct carrier circuit that the utility model embodiment provides, comprising: power supply circuits and parasite power supplier; Described power supply circuits comprise: MCU1, triode Q1, triode Q2 and Light Coupled Device IC1; Parasite power supplier comprises: MCU2, rectifier bridge BRID1, triode Q3 and Light Coupled Device IC2; MCU1 is connected with the base terminal of triode Q1, triode Q1 emitter terminal ground connection, triode Q1 collector terminal is connected with the base terminal of triode Q2, the collector terminal of triode Q2 is connected with the former limit of Light Coupled Device IC1, the collector terminal of triode Q2 is also connected with power supply circuits one output, and another output of Light Coupled Device IC1 secondary and power supply circuits is connected; The output of power supply circuits is connected with parasite power supplier two input, the input of parasite power supplier is connected with rectifier bridge BRID1, rectifier bridge BRID1 is also connected with the emitter terminal of triode Q3, the base terminal of triode Q3 is all connected with Light Coupled Device IC2 secondary with emitter terminal, and the former limit of Light Coupled Device IC2 is connected with MCU2.In the present embodiment, high level is exported by MCU1, the emitter (E pole) of triode Q1, collector electrode (C pole) two ends conducting, thus the emitter of triode Q2 (E pole), collector electrode (C pole) two ends conducting, powered to parasite power supplier by the triode Q2 of power supply circuits and the former limit of Light Coupled Device IC1, electric current is through rectifier bridge BRID1, powered to receiving end by triode Q3 and Light Coupled Device IC2, solve high to power requirement at present, voltage needs relatively stable, and the technical problem that when voltage fluctuation caused, error is very large, by easy low-voltage direct carrier circuit, namely the electric wire of low-voltage DC supply is utilized both to realize function of supplying power, realize communication function again.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of an embodiment of a kind of low-voltage direct carrier circuit that Fig. 1 provides for the utility model embodiment.
Embodiment
The utility model embodiment provides a kind of low-voltage direct carrier circuit, solve high to power requirement at present, voltage needs relatively stable, and the technical problem that when voltage fluctuation caused, error is very large, by easy low-voltage direct carrier circuit, namely utilize the electric wire of low-voltage DC supply both to realize function of supplying power, realize communication function again.
For making utility model object of the present utility model, feature, advantage can be more obvious and understandable, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, the embodiments described below are only the utility model part embodiments, and the embodiment of not all.Based on the embodiment in the utility model, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Power supply circuits and parasite power supplier;
Power supply circuits comprise: MCU1, triode Q1, triode Q2 and Light Coupled Device IC1;
Parasite power supplier comprises: MCU2, rectifier bridge BRID1, triode Q3 and Light Coupled Device IC2;
MCU1 is connected with the base terminal of triode Q1, triode Q1 emitter terminal ground connection, triode Q1 collector terminal is connected with the base terminal of triode Q2, the collector terminal of triode Q2 is connected with the former limit of Light Coupled Device IC1, the collector terminal of triode Q2 is also connected with power supply circuits one output, and another output of Light Coupled Device IC1 secondary and power supply circuits is connected;
The output of power supply circuits is connected with parasite power supplier two input, the input of parasite power supplier is connected with rectifier bridge BRID1, rectifier bridge BRID1 is also connected with the emitter terminal of triode Q3, the base terminal of triode Q3 is all connected with Light Coupled Device IC2 secondary with emitter terminal, and the former limit of Light Coupled Device IC2 is connected with MCU2.
Further, the collector terminal of triode Q3 is also connected on limit former in Light Coupled Device IC3, and Light Coupled Device IC3 secondary is connected with MCU.
Further, Light Coupled Device IC3 secondary also by resistance R9 and the resistance R7 of series connection mutually, is connected with the former limit of Light Coupled Device IC2.
Further, Light Coupled Device IC3 secondary and the former limit of Light Coupled Device IC2 are all held with the TXD of MCU2 and are connected.
Further, the former limit of Light Coupled Device IC3 is held with V-IN and is connected.
Further, the base terminal of triode Q1 is held by the TXD of resistance R1 and MCU1.
Further, Light Coupled Device IC1 secondary is held with the RXD of MCU1 and is connected.
Further, the collector terminal of triode Q1 is also connected with power supply circuits power end VDD with the resistance R2 mutually connected and resistance R3.
Further, the VCC-1 that Light Coupled Device IC1 secondary is also used for powering to MCU1 with power supply circuits holds and is connected;
The VCC-2 that the main limit of Light Coupled Device IC2 is also used for powering to MCU2 with power supply circuits holds and is connected;
The VCC-2 that Light Coupled Device IC3 secondary is also used for powering to MCU2 with power supply circuits holds and is connected.
Further, rectifier bridge BRID1 is anti-reverse rectifier bridge.
For the ease of understanding, below the work of circuit is described in detail:
The power supply that VDD provides to parasite power supplier 2 for power supply circuits 1;
VCC-1 is that power supply circuits 1 communicate the power supply of MCU; MCU1-TXD is that power supply circuits 1 communicate the communications transmit pin of MCU; MCU1-RXD is that power supply circuits 1 communicate the communications reception pin of MCU;
VCC-2 is that parasite power supplier 2 communicates the power supply of MCU; MCU2-TXD is that parasite power supplier 2 communicates the communications transmit pin of MCU; MCU2-RXD is that parasite power supplier 2 communicates the communications reception pin of MCU;
V-IN powers to parasite power supplier 2, in side circuit, may need voltage stabilizing here, and has certain electrochemical capacitor accumulate support communication;
OUT and IN terminal is the terminals of connecting wire between confession, parasite power supplier 2;
In circuit, BRID1 is anti-reverse rectifier bridge, and the line between power supply circuits 1 and parasite power supplier 2 can consider positive negative direction.
Power supply the principle:
According to the characteristic of chip, time the MCU of power supply circuits 1 does not communicate, its MCU1-TXD pin exports high level, the emitter (E pole) of triode Q1, collector electrode (C pole) two ends conducting, thus the emitter of triode Q2 (E pole), collector electrode (C pole) two ends conducting, power vd D is powered to parasite power supplier 2 by the former limit of Q2 and IC1 of power supply circuits 1; Electric current, through the rectifier bridge BRID1 of parasite power supplier 2, is powered to parasite power supplier 2 by triode Q3 and IC2;
Power supply circuits 1 send signal:
When power supply circuits 1 send high level signal from MCU1-TXD port, the emitter (E pole) of triode Q1, collector electrode (C pole) two ends conducting, base stage (B pole) voltage of triode Q2 drags down, thus the emitter of triode Q2 (E pole), collector electrode (C pole) two ends conducting, there are voltage, electric current in the former limit of light lotus root IC1, therefore the conducting of light lotus root IC1 secondary, MCU1-RXD port receives high level signal, and electric current is by the former limit of light lotus root IC1, supply parasite power supplier 2; Parasite power supplier 2MCU is in accepting state, according to the characteristic of chip, its MCU2-TXD pin exports high level, the former limit of light lotus root IC2 does not have electric current, therefore the cut-off of light lotus root IC2 secondary, triode Q3 emitter (E pole), collector electrode (C pole) two ends conducting, electric current, by the former limit of triode Q3 and light lotus root IC3, is powered to parasite power supplier 2; Have electric current with the former limit of time lotus root IC3, the conducting of light lotus root IC3 secondary, MCU2-RXD port receives high level signal;
When power supply circuits 1 send low level signal from MCU1-TXD port, the emitter (E pole) of triode Q1, collector electrode (C pole) two ends by, base stage (B pole) voltage of triode Q2 is pulled up resistance R3 and draws high, thus the emitter of triode Q2 (E pole), collector electrode (C pole) two ends by, the former limit of light lotus root IC1 loses voltage, electric current, therefore the cut-off of light lotus root IC1 secondary, MCU1-RXD port receives low level signal, and now do not have electric current to flow through the former limit of light lotus root IC1, supply parasite power supplier 2; Owing to there is no current direction parasite power supplier 2, so the former limit of parasite power supplier 2 smooth lotus root IC3 does not have electric current, therefore the cut-off of light lotus root IC3 secondary, MCU2-RXD port receives low level signal;
Parasite power supplier 2 sends signal:
When parasite power supplier 2 sends high level signal from MCU2-TXD port, the former limit of light lotus root IC2 does not have electric current, therefore the cut-off of light lotus root IC2 secondary, triode Q3 emitter (E pole), collector electrode (C pole) two ends conducting, electric current flows through the former limit of triode Q3 and light lotus root IC3, there is electric current on the former limit of light lotus root IC3, therefore the conducting of light lotus root IC3 secondary, MCU2-RXD port receives high level signal; Simultaneously due to when parasite power supplier 2 sends signal from MCU2-TXD port, power supply circuits 1MCU is in accepting state, according to chip characteristics, its MCU1-TXD pin exports high level, allow electric current to flow to parasite power supplier 2 through triode Q2 and light lotus root IC1, the conducting of light lotus root IC1 secondary, MCU1-RXD port receives high level signal, therefore when parasite power supplier 2MCU2-TXD port sends high level signal, power supply circuits 1MCU1-RXD port receives high level signal;
When parasite power supplier 2 sends low level signal from MCU2-TXD port, the former limit of light lotus root IC2 has electric current to flow through, therefore the conducting of light lotus root IC2 secondary, base stage (B pole) voltage high of triode Q3, triode Q3 emitter (E pole), collector electrode (C pole) two ends by, the former limit of light lotus root IC3 does not have electric current to flow through, therefore the cut-off of light lotus root IC3 secondary, MCU2-RXD port receives low level signal; Due to parasite power supplier 2 from MCU2-TXD port send low level signal time, cut off power supply circuits 1 to this current circuit of parasite power supplier 2, so the former limit of power supply circuits 1 smooth lotus root IC1 does not have electric current to flow through, light lotus root IC1 secondary ends, MCU1-RXD port receives low level signal, namely, when parasite power supplier 2MCU2-TXD port sends low level signal, power supply circuits 1MCU1-RXD port receives low level signal.
A kind of low-voltage direct carrier circuit that the utility model embodiment provides, comprising: power supply circuits and parasite power supplier; Power supply circuits comprise: MCU1, triode Q1, triode Q2 and Light Coupled Device IC1; Parasite power supplier comprises: MCU2, rectifier bridge BRID1, triode Q3 and Light Coupled Device IC2; MCU1 is connected with the base terminal of triode Q1, triode Q1 emitter terminal ground connection, triode Q1 collector terminal is connected with the base terminal of triode Q2, the collector terminal of triode Q2 is connected with the former limit of Light Coupled Device IC1, the collector terminal of triode Q2 is also connected with power supply circuits one output, and another output of Light Coupled Device IC1 secondary and power supply circuits is connected; The output of power supply circuits is connected with parasite power supplier two input, the input of parasite power supplier is connected with rectifier bridge BRID1, rectifier bridge BRID1 is also connected with the emitter terminal of triode Q3, the base terminal of triode Q3 is all connected with Light Coupled Device IC2 secondary with emitter terminal, and the former limit of Light Coupled Device IC2 is connected with MCU2.In the present embodiment, high level is exported by MCU1, the emitter (E pole) of triode Q1, collector electrode (C pole) two ends conducting, thus the emitter of triode Q2 (E pole), collector electrode (C pole) two ends by, powered to parasite power supplier by the triode Q2 of power supply circuits and the former limit of Light Coupled Device IC1, electric current is through rectifier bridge BRID1, powered to parasite power supplier 2 by triode Q3 and Light Coupled Device IC2, solve high to power requirement at present, voltage needs relatively stable, and the technical problem that when voltage fluctuation caused, error is very large, by easy low-voltage direct carrier circuit, namely the electric wire of low-voltage DC supply is utilized both to realize function of supplying power, realize communication function again.
The above, above embodiment only in order to the technical solution of the utility model to be described, is not intended to limit; Although be described in detail the utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (10)
1. a low-voltage direct carrier circuit, is characterized in that, comprising:
Power supply circuits and parasite power supplier;
Described power supply circuits comprise: MCU1, triode Q1, triode Q2 and Light Coupled Device IC1;
Described parasite power supplier comprises: MCU2, rectifier bridge BRID1, triode Q3 and Light Coupled Device IC2;
Described MCU1 is connected with the base terminal of described triode Q1, described triode Q1 emitter terminal ground connection, described triode Q1 collector terminal is connected with the base terminal of described triode Q2, the collector terminal of described triode Q2 is connected with the former limit of described Light Coupled Device IC1, the collector terminal of described triode Q2 is also connected with described power supply circuits one output, and described Light Coupled Device IC1 secondary is connected with another output of described power supply circuits;
The described output of described power supply circuits is connected with described parasite power supplier two input, the described input of described parasite power supplier is connected with described rectifier bridge BRID1, described rectifier bridge BRID1 is also connected with the emitter terminal of described triode Q3, the base terminal of described triode Q3 is all connected with described Light Coupled Device IC2 secondary with emitter terminal, and the former limit of described Light Coupled Device IC2 is connected with described MCU2.
2. low-voltage direct carrier circuit according to claim 1, is characterized in that, the collector terminal of described triode Q3 is also connected on limit former in Light Coupled Device IC3, and described Light Coupled Device IC3 secondary is connected with described MCU.
3. low-voltage direct carrier circuit according to claim 2, is characterized in that, described Light Coupled Device IC3 secondary also by resistance R9 and the resistance R7 of series connection mutually, is connected with the former limit of described Light Coupled Device IC2.
4. low-voltage direct carrier circuit according to claim 3, is characterized in that, described Light Coupled Device IC3 secondary and the former limit of described Light Coupled Device IC2 are all held with the TXD of described MCU2 and be connected.
5. low-voltage direct carrier circuit according to claim 4, is characterized in that, the former limit of described Light Coupled Device IC3 is held with V-IN and is connected.
6. low-voltage direct carrier circuit according to claim 5, is characterized in that, the base terminal of described triode Q1 is held by the TXD of resistance R1 and described MCU1.
7. low-voltage direct carrier circuit according to claim 6, is characterized in that, described Light Coupled Device IC1 secondary is held with the RXD of described MCU1 and is connected.
8. low-voltage direct carrier circuit according to claim 7, is characterized in that, the collector terminal of described triode Q1 is also connected with described power supply circuits power end VDD with the resistance R2 mutually connected and resistance R3.
9. low-voltage direct carrier circuit according to claim 8, is characterized in that, the VCC-1 that described Light Coupled Device IC1 secondary is also used for powering to described MCU1 with described power supply circuits holds and is connected;
The VCC-2 that the main limit of described Light Coupled Device IC2 is also used for powering to described MCU2 with described power supply circuits holds and is connected;
The VCC-2 that described Light Coupled Device IC3 secondary is also used for powering to described MCU2 with described power supply circuits holds and is connected.
10. low-voltage direct carrier circuit as claimed in any of claims 1 to 9, is characterized in that, described rectifier bridge BRID1 is anti-reverse rectifier bridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520833370.3U CN205005048U (en) | 2015-10-22 | 2015-10-22 | Low pressure direct current carrier circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520833370.3U CN205005048U (en) | 2015-10-22 | 2015-10-22 | Low pressure direct current carrier circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205005048U true CN205005048U (en) | 2016-01-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520833370.3U Withdrawn - After Issue CN205005048U (en) | 2015-10-22 | 2015-10-22 | Low pressure direct current carrier circuit |
Country Status (1)
| Country | Link |
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| CN (1) | CN205005048U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105721019A (en) * | 2016-03-29 | 2016-06-29 | 上海晶电新能源有限公司 | Low-cost direct current power carrier communication bus circuit |
| CN106612129A (en) * | 2015-10-22 | 2017-05-03 | 从兴技术有限公司 | Low-voltage DC carrier wave circuit |
-
2015
- 2015-10-22 CN CN201520833370.3U patent/CN205005048U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106612129A (en) * | 2015-10-22 | 2017-05-03 | 从兴技术有限公司 | Low-voltage DC carrier wave circuit |
| CN106612129B (en) * | 2015-10-22 | 2022-11-15 | 从兴技术有限公司 | Low-voltage direct-current carrier circuit |
| CN105721019A (en) * | 2016-03-29 | 2016-06-29 | 上海晶电新能源有限公司 | Low-cost direct current power carrier communication bus circuit |
| CN105721019B (en) * | 2016-03-29 | 2018-06-26 | 上海晶电新能源有限公司 | A kind of low cost DC power carrier communication bus circuit |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160127 Effective date of abandoning: 20221115 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20160127 Effective date of abandoning: 20221115 |