CN208128264U - A kind of control circuit for realizing nonpolarity power supply and communication based on two-wire system - Google Patents
A kind of control circuit for realizing nonpolarity power supply and communication based on two-wire system Download PDFInfo
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- CN208128264U CN208128264U CN201820286823.9U CN201820286823U CN208128264U CN 208128264 U CN208128264 U CN 208128264U CN 201820286823 U CN201820286823 U CN 201820286823U CN 208128264 U CN208128264 U CN 208128264U
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- circuit
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- power supply
- transmitting line
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Abstract
The utility model discloses a kind of control circuit that nonpolarity power supply and communication are realized based on two-wire system, including host circuit and slave circuit and power circuit, the host circuit includes that host transmitting line and host receive circuit, the slave circuit includes that slave transmitting line and slave receive circuit, the power circuit includes rectifier bridge VD, the rectifier bridge VD is made of four diodes, the rectified bridge VD of the output end of the host transmitting line exports to slave the input terminal for receiving circuit, the rectified bridge VD of the output end of the slave transmitting line exports to host the input terminal for receiving circuit.The utility model provides power supply to host circuit and slave circuit respectively by power circuit, and interactively communicating between host and slave is realized by the rectifier bridge of setting, the power supply and communication between two-wire system slave are completed in the case where not needing the independent power-supply circuit of host modulation-demodulation circuit, slave, construction wiring is convenient, effectively reduces cost.
Description
Technical field
The utility model belongs to two-wire system control field, and in particular to one kind is realized nonpolarity power supply based on two-wire system and led to
The control circuit of letter.
Background technique
Connecting line between existing wired thermostat valve and temperature controller must be all correspondingly connected with one by one by polarity and function, no
Energy wrong, it is many inconvenient to construction wiring tape, and also maintenance cost is also higher, once wrong line, gently then equipment cannot be normal
Work, heavy then burning apparatus, MBUS bus realizes the two-in-one function of communication and power supply at present, but needs complicated host tune
Demodulator circuit processed, slave need dedicated communication circuits, and using current-modulation mode, bus voltage is higher, and slave devices need multiple
Miscellaneous control circuit, power-supply circuit, power-switching circuit, cause higher operating costs.
Utility model content
The purpose of this utility model is to provide a kind of control circuits that nonpolarity power supply and communication are realized based on two-wire system.
In order to solve the above technical problems, the utility model adopts the following technical solution：
A kind of control circuit for realizing nonpolarity power supply and communication based on two-wire system, including host circuit and slave circuit with
And power circuit, the host circuit includes host transmitting line and host receives circuit, and the slave circuit includes slave hair
Power transmission road and slave receive circuit, and the power circuit includes rectifier bridge VD, and the rectifier bridge VD is made of four diodes, institute
The rectified bridge VD of output end for stating host transmitting line exports to slave the input terminal for receiving circuit, the slave transmitting line
The rectified bridge VD of output end exports to host the input terminal for receiving circuit.
Further, the power circuit further includes providing the power supply I1 of electric current to slave circuit and mentioning to host circuit
For the power supply I2 of electric current.
Further, the host transmitting line and slave transmitting line are made of a PNP triode.
Further, the host receives circuit and slave receives circuit by a PNP triode and tri- pole NPN
Pipe is constituted, wherein the base stage of the collector of the PNP triode and NPN triode connects.
Beneficial effect：The utility model provides power supply to host circuit and slave circuit respectively by power circuit, and leads to
The rectifier bridge for crossing setting realizes interactively communicating between host and slave, and not needing, host modulation-demodulation circuit, slave are independent
The power supply and communication between two-wire system slave are completed in the case where power-supply circuit, construction wiring is convenient, effectively reduces cost.
Detailed description of the invention
Fig. 1 is a kind of circuit diagram of embodiment of the utility model；
In figure：1, slave transmitting line；2, slave receives circuit；3, host transmitting line；4, host receives circuit；5, electric
Source circuit.
Specific embodiment
The preferred embodiment of the utility model is described in further detail with reference to the accompanying drawing, following preferred embodiment is used for
Illustrate the utility model, is not intended to limit the scope of the present invention.
As shown in Figure 1, the control circuit described in the utility model for realizing nonpolarity power supply and communication based on two-wire system, packet
Host circuit and slave circuit and power circuit are included, the host circuit includes that host transmitting line 3 and host receive circuit
4, the slave circuit includes that slave transmitting line 1 and slave receive circuit 2, and the power circuit 5 includes mentioning to slave circuit
Power supply I1 for the electric current and power supply I2 and rectifier bridge VD to host circuit offer electric current, wherein the rectifier bridge VD is by four
Diode composition, the rectified bridge VD of the output end of the host transmitting line exports to slave the input terminal for receiving circuit, described
The rectified bridge VD of the output end of slave transmitting line exports to host the input terminal for receiving circuit.
As shown in Figure 1, the slave transmitting line, including resistance R5, resistance R6 and PNP triode Q4, wherein resistance
R5 receives TX2 signal, exports through triode Q4 and pass through resistance R6 and exports to rectifier bridge VD, final output to host reception circuit
Diode D1；The host transmitting line includes resistance R1, PNP triode Q1 and resistance R2, and wherein resistance R1 receives letter
Number TX1, exports through triode Q1 and passes through resistance R2 and export to rectifier bridge VD, and final output to slave receives the diode of circuit
D2；It includes diode D2, PNP triode Q5, NPN triode Q6 and resistance R8 that the slave, which receives circuit 2, wherein described
The collector of PNP triode Q5 is connect with the base stage of NPN triode Q6, and the anode of the diode D2 is connected to by resistance R8
Super capacitor C2, the negative terminal of diode D2 are connected to the emitter of PNP triode Q5, and the collector of PNP triode Q5 passes through electricity
Resistance R7 is exported to NPN triode Q6, and the other end of the resistance R7 is grounded, and the collector of the triode Q6 is connected by resistance R8
It is connected to power supply and output signal RX2, the emitter ground connection of triode Q6；It includes diode D1, capacitor that the host, which receives circuit 4,
C1, PNP triode Q2, NPN triode Q3 and resistance R3 and resistance R4, wherein the collector of the PNP triode Q2 with
The base stage of NPN triode Q3 connects, and the diode D1 receives the signal of slave transmitting line, and the negative terminal of diode D1 is connected to
Capacitor C1, and it is connected to the emitter of PNP triode Q2, the base stage of triode Q2 is connected to bus, the collector of triode Q2
The base stage of triode Q3 is connected to by resistance R3, the collector of triode Q3 passes through resistance R4 connection power supply and output signal
The emitter of RX1, triode Q3 are grounded.
Communication process of the slave to host：When the TX2 of circuit 1 is low level signal, triode Q4 conducting, rectified bridge VD
Output is to diode D1, and triode Q2 conducting in circuit 3 is connected the triode Q3 of circuit 3, RX1 is low level signal；Electricity
The TX2 on road 1 is high level, and triode Q4 ends, and bus voltage restores, the triode Q2 cut-off in circuit 3, thus triode Q3
Cut-off, RX1 is high level signal, the communication process of completion host to slave.
Communication process of the host to slave：The TX1 of circuit 3 is low level signal, and triode Q1 is connected, rectified bridge VD,
Signal, which is exported, is connected the triode Q5 of circuit 2 to diode D2, so that the triode Q6 of circuit 2 is connected, RX2 is low level
Signal, the TX1 of circuit 3 are high level signal, and triode Q1 cut-off, bus voltage restores, so that the triode Q5 of circuit 2 is cut
Only, so that the triode Q6 of circuit 2 ends, RX2 is high level signal, the communication process of completion slave to host.
In order to keep the purpose of this utility model, technical solution and advantage more concise, the above tool of the utility model
Body embodiment is illustrated, and is used only for description the utility model, be should not be understood as the limitation to the scope of the utility model.It answers
It, should all when, it is noted that any modifications, equivalent replacements, and improvements etc. done within the spirit and principle of the utility model
It is included within the scope of protection of this utility model.Therefore, the protection scope of the utility model patent should be with appended claims
Subject to.
Claims (4)
1. a kind of control circuit for realizing nonpolarity power supply and communication based on two-wire system, which is characterized in that including host circuit and
Slave circuit and power circuit, the host circuit include host transmitting line（3）Circuit is received with host（4）, it is described from
Electromechanical road includes slave transmitting line（1）Circuit is received with slave（2）, the power circuit includes rectifier bridge VD, the rectification
Bridge VD is made of four diodes, the host transmitting line（3）The rectified bridge VD of output end export to slave receive circuit
（2）Input terminal, the slave transmitting line（1）The rectified bridge VD of output end export to host receive circuit（4）Input
End.
2. the control circuit according to claim 1 for realizing nonpolarity power supply and communication based on two-wire system, which is characterized in that
The power circuit further includes providing the power supply I1 of electric current to slave circuit and providing the power supply I2 of electric current to host circuit.
3. the control circuit according to claim 1 for realizing nonpolarity power supply and communication based on two-wire system, which is characterized in that
The host transmitting line and slave transmitting line are made of a PNP triode.
4. the control circuit according to claim 1 for realizing nonpolarity power supply and communication based on two-wire system, which is characterized in that
The host transmitting line and slave transmitting line are made of a PNP triode and a NPN triode, wherein described
The collector of PNP triode and the base stage of NPN triode connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820286823.9U CN208128264U (en) | 2018-03-01 | 2018-03-01 | A kind of control circuit for realizing nonpolarity power supply and communication based on two-wire system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820286823.9U CN208128264U (en) | 2018-03-01 | 2018-03-01 | A kind of control circuit for realizing nonpolarity power supply and communication based on two-wire system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208128264U true CN208128264U (en) | 2018-11-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820286823.9U Active CN208128264U (en) | 2018-03-01 | 2018-03-01 | A kind of control circuit for realizing nonpolarity power supply and communication based on two-wire system |
Country Status (1)
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| CN (1) | CN208128264U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112202573A (en) * | 2020-09-30 | 2021-01-08 | 金华飞光科技有限公司 | Two-wire system power supply and networking communication system |
| CN116170244A (en) * | 2022-12-08 | 2023-05-26 | 杭州旗捷科技有限公司 | Communication circuit and printer communication system |
-
2018
- 2018-03-01 CN CN201820286823.9U patent/CN208128264U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112202573A (en) * | 2020-09-30 | 2021-01-08 | 金华飞光科技有限公司 | Two-wire system power supply and networking communication system |
| CN112202573B (en) * | 2020-09-30 | 2022-08-30 | 金华飞光科技有限公司 | Two-wire system power supply and networking communication system |
| CN116170244A (en) * | 2022-12-08 | 2023-05-26 | 杭州旗捷科技有限公司 | Communication circuit and printer communication system |
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