CN104967548B - Free topology type can power electrodeless two-wire system communication m bus buses - Google Patents

Free topology type can power electrodeless two-wire system communication m bus buses Download PDF

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CN104967548B
CN104967548B CN201410713463.2A CN201410713463A CN104967548B CN 104967548 B CN104967548 B CN 104967548B CN 201410713463 A CN201410713463 A CN 201410713463A CN 104967548 B CN104967548 B CN 104967548B
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resistance
pin
optocoupler
power supply
electric capacity
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CN104967548A (en
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李健
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Hefei Ikona Energy Co ltd
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Hefei Hongye Electrical Technology Co Ltd
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Abstract

It can be powered electrodeless two-wire system communication bus-m bus buses the invention discloses a kind of free topology type, include SM100B chips and realize that main website circuit, SM001B chips realize slave station circuit；The present invention is reasonable in design, simple in construction, power supply and communication multiplex bus and nonpolarity, can free topology, the life-span of light source can be extended, improve working environment, improve operating efficiency, realize a variety of illuminating effects, management service conveniently, there is higher economic rate of return.

Description

Free topology type can power electrodeless two-wire system communication m-bus buses
Technical field
The present invention relates to a kind of m-bus bus protocols, and specifically more particularly to one kind is mainly used in intelligent building, disappeared Count more, widespread free topology type of the field apparatus such as anti-alarm, security protection, smart home can power electrodeless two-wire system communication M-bus buses.
Background technology
With the development of the society, people propose higher requirement, intelligent lighting, intelligent parasols control to comfortable and energy-conservation System will obtain more and more extensive application.At the same time, user it is increasingly stricter to the requirement of the system integration and maintenance upgrade and Specialization, the product of standardization progressively embody its comprehensive advantage, have EIB/KNX, 485 etc. using more in intelligent lighting field Bus, EIB/KNX can at most mount 64 equipment, and communication distance is no more than 1000m, it is impossible to non-polar wiring, and 485 modes It can not give down and connect equipment power supply, equipment needs individually solve powerup issue, and 485 bus communications should not typically use star, tree-like, The networking structures such as annular, often using handing in hand, and to be one kind can power, be nonpolarity m-bus buses, two-wire system communication mechanism, Can free topology, have communication apparatus capacity big, communication speed is high, and design is simple, and wiring is convenient, the spy such as strong antijamming capability Point, it can apply at scenes such as intelligent building, fire protection warning, security protection, smart homes.
The content of the invention
It can be powered electrodeless two-wire system communication m-bus buses it is an object of the invention to provide free topology type, reasonable in design, knot Structure is simple, power supply and communication multiplex bus and nonpolarity, can free topology, the life-span of light source can be extended, improvement working environment, carried High workload efficiency, a variety of illuminating effects are realized, management service is convenient, there is higher economic rate of return.
In order to solve the problems existing in background technology, the present invention uses following technical scheme：
Free topology type can power electrodeless two-wire system communication m-bus buses, include SM100B chips realize main website circuit, SM001B chips realize slave station circuit.
Described SM100B chips realize that main website circuit includes integrated chip (U1), the 1st of described integrated chip (U1) the Pin is connected with the one end of resistance (R2), and resistance (R2) other end is connected with optocoupler (Q4) one end, optocoupler (Q4) one end and resistance (R4) one end connection, and output port (J1) is connected to, resistance (R4) other end is connected to power supply VCC_MCU, optocoupler (Q4) two other port with being connected respectively to power supply+5V and power supply, the 15th pin of integrated chip (U1) respectively with resistance (R3) One end connected with one end of optocoupler (Q1), resistance (R3) other end is connected with power supply+5V, optocoupler (Q1) other end and resistance (R1) one end connection, the other end of resistance (R1) are connected with power supply VCC_MCU, optocoupler (Q1) other end and output port (J1) The connection of the 2nd pin, optocoupler (Q1) other end with being connected to GNDZx power supplys, the 16th pin of integrated chip (U1) respectively with optocoupler (Q2) one end connects with the one end of optocoupler (Q3), optocoupler (Q2) other end one end with resistance (R5), electric capacity (C1) respectively One end connection of one end, the other end of optocoupler (Q3) and resistance (R6), resistance (R5) other end are connected to power supply VCC_MCU, The other end of electric capacity (C1) is connected with one end of resistance (R23), and the other end of resistance (R23) is distinguished with the other end of resistance (R6) With being connected to power supply, after the other end of the other end of optocoupler (Q2) and optocoupler (Q3) is connected with each other with output port (J1) the 5th Pin is connected, and the 2nd pin of integrated chip (U1) is connected with one end of optocoupler (Q6) and one end of optocoupler (Q5) respectively, and optocoupler (Q6) is another One end of one end one end with resistance (R18), one end of electric capacity (C2), the other end of optocoupler (Q5) and resistance (R19) respectively Connection, the other end of resistance (R18) are connected with power supply+5V, and electric capacity (C2) is connected with one end of resistance (R17), resistance (R17) GNDZx is connected the other end of the other end and resistance (R19) with power supply respectively, and the other end of optocoupler (Q6) is another with optocoupler (Q5) It is connected after the connection of one end with the 4th pin of output port (J1), the other end of optocoupler (Q6) is connected with power supply VCC_MCU, optocoupler (Q5) the other end is connected with power supply, and the 3rd pin of integrated chip (U1) is connected with one end of resistance (R20), integrated chip (U1) the 6th pin is connected after being connected with the 5th pin with one end of electric capacity (C4), and is connected with power supply+5V, integrated chip (U1) The 4th pin GNDZx is connected with power supply, GNDZx is connected the other end of electric capacity (C4) with power supply, the 7th of integrated chip (U1) the Pin is connected with the one end of resistance (R10), and GNDZx is connected the other end of resistance (R10) with power supply, and the 8th of integrated chip (U1) the Pin is connected with the one end of resistance (R8), the 9th pin of integrated chip (U1) respectively with one end of electric capacity (C5) and diode (VD1) One end is connected, and GNDZx is connected the other end of electric capacity (C5) with power supply, the 11st pin of integrated chip (U1) and the one of resistance (R9) End connection, the 13rd pin of integrated chip (U1) are connected with one end of resistance (R7), the 10th pin and electric capacity of integrated chip (U1) (C3) one end connection, the 12nd pin of integrated chip (U1) one end with fuse (F1), one end of electric capacity (C3), resistance respectively (R11) one end, one end of resistance (R12), one end of resistance (R13), one end of resistance (R14), diode (VD3) and electricity Hold positive pole one end connection of (E1), the other end of fuse (F1) is connected with+24V power supplys, negative pole one end power supply of electric capacity (E1) Ground GNDZx connections, one end of diode (VD2) one end with inductance (L1), the other end of resistance (R7), resistance (R11) respectively The other end, the other end of resistance (R12), the other end of resistance (R13) and resistance (R14) other end connection, metal-oxide-semiconductor (VT2) one end is connected with the other end of resistance (R9), the other end of metal-oxide-semiconductor (VT2) respectively with the other end of inductance (L1) and The other end connection of diode (VD2), the other end of metal-oxide-semiconductor (VT2) other end with resistance (R8), diode (VD1) respectively The other end, one end of metal-oxide-semiconductor (VT1), one end of diode (VD4), one end of Transient Suppression Diode (VD5) and common mode One end connection of inductance (L2), the other end of metal-oxide-semiconductor (VT1) are connected with the other end of resistance (R20), metal-oxide-semiconductor (VT1) other end Be connected respectively with one end of resistance (R21) and one end of resistance (R22), the other end of resistance (R21) respectively with resistance (R22) The other end, the other end of diode (VD4), the other end of Transient Suppression Diode (VD5) and common mode inductance (L2) it is another End connection, the 1st pin of output port (J1) is with connecing power supply.
Described SM001B chips realize that slave station circuit includes integrated chip (U2), the 2nd pin difference of integrated chip (U2) One end of one end, diode (VD7) and one end of diode (VD12) with diode (VD6) are connected, diode (VD7) it is another One end one end with diode (VD11), one end of electric capacity (C17), one end of diode (VD8), Transient Suppression Diode respectively (VP1) connection of the other end of one end and common mode inductance (L2), the other end of diode (VD6) respectively with diode (VD10) One end, one end of electric capacity (C6), one end of diode (VD9) and resistance (R15) one end connection, Transient Suppression Diode (VP1) other end is connected with the other end of resistance (R15) and the other end of common mode inductance (L2) respectively, diode (VD8) it is another One end of one end other end with diode (VD9), one end of resistance (R25) and resistance (R24) respectively is connected, resistance (R25) the other end is connected with the other end of resistance (R24) and the positive terminal of electric capacity (E3) respectively, the negative pole end of electric capacity (E3) with Connect, the other end of electric capacity (C6), the other end of electric capacity (C7), the other end and diode of diode (VD10) power supply (VD11) the other end is connected with power supply respectively, and the other end of diode (VD12) is connected with resistance (R16), integrated chip (U2) the 3rd pin is connected with power supply, the 5th pin of integrated chip (U2) the 6th pin and electric capacity with integrated chip (U2) respectively (C8) one end connection, the 8th pin of integrated chip (U2) respectively the other end with resistance (R16), electric capacity (E2) positive terminal with And one end connection of electric capacity (C9), the other end point of the other end of electric capacity (C8), the negative pole end of electric capacity (E2) and electric capacity (C9) It is not connected with power supply, the 4th pin of integrated chip (U2) is connected with the 1st pin of output port (J2), and the 7th of integrated chip (U2) the Pin is connected with the 2nd pin of output port (J2), and the 3rd pin of output port (J2) is connected with power supply.
Free topology type can power electrodeless two-wire system communication bus-m-bus buses include bus-powered circuit, bus not Power supply circuit, bus-powered slave station communication isolation circuit, bus are not powered slave station communication isolation circuit and by described SM100B chips realize main website circuit, SM001B chips realize slave station circuit be used for realize bus-powered, bus do not power, bus Power supply slave station communication is isolated, bus is not powered, and slave station communicates isolation features.
Described bus-powered circuit includes integrated chip (U1), the 1st pin and resistance of described integrated chip (U1) (R2) one end connection, resistance (R2) other end are connected with optocoupler (Q4) one end, optocoupler (Q4) one end and one end of resistance (R4) Connection, and is connected to output port (J1), and resistance (R4) other end is connected to power supply VCC_MCU, optocoupler (Q4) two other Port with being connected respectively to power supply+5V and power supply, the 15th pin of integrated chip (U1) one end with resistance (R3) and optocoupler respectively (Q1) one end connection, resistance (R3) other end are connected with power supply+5V, and one end of optocoupler (Q1) other end and resistance (R1) connects Connecing, the other end of resistance (R1) is connected with power supply VCC_MCU, and optocoupler (Q1) other end is connected with the 2nd pin of output port (J1), Optocoupler (Q1) other end with being connected to GNDZx power supplys, the 16th pin of integrated chip (U1) one end with optocoupler (Q2) and light respectively One end connection of coupling (Q3), optocoupler (Q2) other end one end with resistance (R5), one end of electric capacity (C1), optocoupler (Q3) respectively One end of the other end and resistance (R6) connects, and resistance (R5) other end is connected to power supply VCC_MCU, the other end of electric capacity (C1) Be connected with one end of resistance (R23), the other end of resistance (R23) and the other end of resistance (R6) with being connected respectively to power supply, light The other end of coupling (Q2) is connected after being connected with each other with the other end of optocoupler (Q3) with the 5th pin of output port (J1), integrated chip (U1) the 2nd pin is connected with one end of optocoupler (Q6) and one end of optocoupler (Q5) respectively, optocoupler (Q6) other end respectively with resistance (R18) one end, one end connection of one end of electric capacity (C2), the other end of optocoupler (Q5) and resistance (R19), resistance (R18) The other end be connected with power supply+5V, electric capacity (C2) is connected with one end of resistance (R17), the other end and resistance of resistance (R17) (R19) GNDZx is connected the other end with power supply respectively, the other end of optocoupler (Q6) be connected with the other end of optocoupler (Q5) after with The 4th pin connection of output port (J1), the other end of optocoupler (Q6) is connected with power supply VCC_MCU, the other end of optocoupler (Q5) and Connect, the 3rd pin of integrated chip (U1) is connected with one end of resistance (R20), the 6th pin and the 5th of integrated chip (U1) power supply Pin is connected after being connected with one end of electric capacity (C4), and is connected with power supply+5V, and the 4th pin of integrated chip (U1) is with power supply GNDZx connections, GNDZx is connected the other end of electric capacity (C4) with power supply, the 7th pin and the resistance (R10) of integrated chip (U1) One end is connected, and GNDZx is connected the other end of resistance (R10) with power supply, the 8th pin of integrated chip (U1) and the one of resistance (R8) End connection, the 9th pin of integrated chip (U1) are connected with one end of electric capacity (C5) and one end of diode (VD1) respectively, electric capacity (C5) GNDZx is connected the other end with power supply, and the 11st pin of integrated chip (U1) is connected with one end of resistance (R9), integrates core 13rd pin of piece (U1) is connected with one end of resistance (R7), and the 10th pin of integrated chip (U1) is connected with one end of electric capacity (C3), 12nd pin of integrated chip (U1) one end with fuse (F1), one end of electric capacity (C3), one end of resistance (R11), electricity respectively Hinder the positive pole one of the one end of (R12), one end of resistance (R13), one end of resistance (R14), diode (VD3) and electric capacity (E1) End connection, the other end of fuse (F1) is connected with+24V power supplys, the GNDZx connections of negative pole one end power supply of electric capacity (E1) ground, and two One end of pole pipe (VD2) one end with inductance (L1), the other end of resistance (R7), the other end, the resistance of resistance (R11) respectively (R12) other end connection of the other end, the other end of resistance (R13) and resistance (R14), one end and the electricity of metal-oxide-semiconductor (VT2) Hinder the other end connection of (R9), the other end of metal-oxide-semiconductor (VT2) is another with the other end of inductance (L1) and diode (VD2) respectively One end connects, the other end of metal-oxide-semiconductor (VT2) other end with resistance (R8), the other end, the metal-oxide-semiconductor of diode (VD1) respectively (VT1) one end, one end of diode (VD4), one end of one end of Transient Suppression Diode (VD5) and common mode inductance (L2) Connection, the other end of metal-oxide-semiconductor (VT1) is connected with the other end of resistance (R20), metal-oxide-semiconductor (VT1) other end respectively with resistance (R21) one end connects with the one end of resistance (R22), the other end of resistance (R21) other end with resistance (R22), two respectively The other end connection of the other end of pole pipe (VD4), the other end of Transient Suppression Diode (VD5) and common mode inductance (L2), it is defeated 1st pin of exit port (J1) with connecing power supply, the 2nd pin of integrated chip (U2) one end with diode (VD6), diode respectively (VD7) one end connects with the one end of diode (VD12), the other end of diode (VD7) respectively with diode (VD11) one End, one end of electric capacity (C17), one end of diode (VD8), one end of Transient Suppression Diode (VP1) and common mode inductance (L2) other end connection, the other end of diode (VD6) respectively one end with diode (VD10), electric capacity (C6) one end, One end of diode (VD9) and the connection of one end of resistance (R15), Transient Suppression Diode (VP1) other end respectively with resistance (R15) the other end connects with the other end of common mode inductance (L2), the other end of diode (VD8) respectively with diode (VD9) The other end, one end of resistance (R25) and one end connection of resistance (R24), the other end of resistance (R25) respectively with resistance (R24) the other end is connected with the positive terminal of electric capacity (E3), and the negative pole end of electric capacity (E3) is connected with power supply, electric capacity (C6) it is another One end, the other end of electric capacity (C7), the other end of diode (VD10) and diode (VD11) the other end respectively with power supply Ground is connected, and the other end of diode (VD12) is connected with resistance (R16), and the 3rd pin of integrated chip (U2) is connected with power supply, collection The 5th pin into chip (U2) is connected with the 6th pin of integrated chip (U2) and one end of electric capacity (C8) respectively, integrated chip (U2) One end of 8th the pin other end with resistance (R16), the positive terminal of electric capacity (E2) and electric capacity (C9) respectively is connected, electric capacity (C8) The other end, the negative pole end of electric capacity (E2) and the other end of electric capacity (C9) be connected respectively with power supply, integrated chip (U2) 4th pin is connected with the 1st pin of output port (J2), and the 7th pin of integrated chip (U2) is connected with the 2nd pin of output port (J2), 3rd pin of output port (J2) is connected with power supply.
Power supply circuit does not include integrated chip (U1), the 1st pin and the electricity of described integrated chip (U1) to described bus One end connection of (R2) is hindered, resistance (R2) other end is connected with optocoupler (Q4) one end, optocoupler (Q4) one end and the one of resistance (R4) End connection, and output port (J1) is connected to, resistance (R4) other end is connected to power supply VCC_MCU, optocoupler (Q4) other two Individual port with being connected respectively to power supply+5V and power supply, the 15th pin of integrated chip (U1) one end with resistance (R3) and light respectively One end connection of coupling (Q1), resistance (R3) other end are connected with power supply+5V, and one end of optocoupler (Q1) other end and resistance (R1) connects Connecing, the other end of resistance (R1) is connected with power supply VCC_MCU, and optocoupler (Q1) other end is connected with the 2nd pin of output port (J1), Optocoupler (Q1) other end with being connected to GNDZx power supplys, the 16th pin of integrated chip (U1) one end with optocoupler (Q2) and light respectively One end connection of coupling (Q3), optocoupler (Q2) other end one end with resistance (R5), one end of electric capacity (C1), optocoupler (Q3) respectively One end of the other end and resistance (R6) connects, and resistance (R5) other end is connected to power supply VCC_MCU, the other end of electric capacity (C1) Be connected with one end of resistance (R23), the other end of resistance (R23) and the other end of resistance (R6) with being connected respectively to power supply, light The other end of coupling (Q2) is connected after being connected with each other with the other end of optocoupler (Q3) with the 5th pin of output port (J1), integrated chip (U1) the 2nd pin is connected with one end of optocoupler (Q6) and one end of optocoupler (Q5) respectively, optocoupler (Q6) other end respectively with resistance (R18) one end, one end connection of one end of electric capacity (C2), the other end of optocoupler (Q5) and resistance (R19), resistance (R18) The other end be connected with power supply+5V, electric capacity (C2) is connected with one end of resistance (R17), the other end and resistance of resistance (R17) (R19) GNDZx is connected the other end with power supply respectively, the other end of optocoupler (Q6) be connected with the other end of optocoupler (Q5) after with The 4th pin connection of output port (J1), the other end of optocoupler (Q6) is connected with power supply VCC_MCU, the other end of optocoupler (Q5) and Connect, the 3rd pin of integrated chip (U1) is connected with one end of resistance (R20), the 6th pin and the 5th of integrated chip (U1) power supply Pin is connected after being connected with one end of electric capacity (C4), and is connected with power supply+5V, and the 4th pin of integrated chip (U1) is with power supply GNDZx connections, GNDZx is connected the other end of electric capacity (C4) with power supply, the 7th pin and the resistance (R10) of integrated chip (U1) One end is connected, and GNDZx is connected the other end of resistance (R10) with power supply, the 8th pin of integrated chip (U1) and the one of resistance (R8) End connection, the 9th pin of integrated chip (U1) are connected with one end of electric capacity (C5) and one end of diode (VD1) respectively, electric capacity (C5) GNDZx is connected the other end with power supply, and the 11st pin of integrated chip (U1) is connected with one end of resistance (R9), integrates core 13rd pin of piece (U1) is connected with one end of resistance (R7), and the 10th pin of integrated chip (U1) is connected with one end of electric capacity (C3), 12nd pin of integrated chip (U1) one end with fuse (F1), one end of electric capacity (C3), one end of resistance (R11), electricity respectively Hinder the positive pole one of the one end of (R12), one end of resistance (R13), one end of resistance (R14), diode (VD3) and electric capacity (E1) End connection, the other end of fuse (F1) is connected with+24V power supplys, the GNDZx connections of negative pole one end power supply of electric capacity (E1) ground, and two One end of pole pipe (VD2) one end with inductance (L1), the other end of resistance (R7), the other end, the resistance of resistance (R11) respectively (R12) other end connection of the other end, the other end of resistance (R13) and resistance (R14), one end and the electricity of metal-oxide-semiconductor (VT2) Hinder the other end connection of (R9), the other end of metal-oxide-semiconductor (VT2) is another with the other end of inductance (L1) and diode (VD2) respectively One end connects, the other end of metal-oxide-semiconductor (VT2) other end with resistance (R8), the other end, the metal-oxide-semiconductor of diode (VD1) respectively (VT1) one end, one end of diode (VD4), one end of one end of Transient Suppression Diode (VD5) and common mode inductance (L2) Connection, the other end of metal-oxide-semiconductor (VT1) is connected with the other end of resistance (R20), metal-oxide-semiconductor (VT1) other end respectively with resistance (R21) one end connects with the one end of resistance (R22), the other end of resistance (R21) other end with resistance (R22), two respectively The other end connection of the other end of pole pipe (VD4), the other end of Transient Suppression Diode (VD5) and common mode inductance (L2), it is defeated 1st pin of exit port (J1) with connecing power supply, the 2nd pin of integrated chip (U2) one end with diode (VD6), diode respectively (VD7) one end connects with the one end of diode (VD12), the other end of diode (VD7) respectively with diode (VD11) one End, the other end connection of one end of electric capacity (C17), one end of Transient Suppression Diode (VP1) and common mode inductance (L2), two poles Manage (VD6) the other end respectively one end with diode (VD10), one end of electric capacity (C6) and resistance (R15) one end connect Connect, Transient Suppression Diode (VP1) other end connects with the other end of resistance (R15) and the other end of common mode inductance (L2) respectively Connect, the other end of diode (VD10) and the other end of diode (VD11) are connected with power supply respectively, diode (VD12) The other end be connected with resistance (R16), the 3rd pin of integrated chip (U2) is connected with power supply, the 5th pin of integrated chip (U2) point Be not connected with the 6th pin of integrated chip (U2) and one end of electric capacity (C8), the 8th pin of integrated chip (U2) respectively with resistance (R16) one end connection of the other end, the positive terminal of electric capacity (E2) and electric capacity (C9), the other end, the electric capacity of electric capacity (C8) (E2) negative pole end and the other end of electric capacity (C9) is connected with power supply respectively, the 4th pin and output end of integrated chip (U2) The 1st pin connection of mouth (J2), the 7th pin of integrated chip (U2) are connected with the 2nd pin of output port (J2), output port (J2) 3rd pin is connected with power supply.
Described bus-powered slave station communication isolation circuit includes integrated chip (U1), and the of described integrated chip (U1) 1 pin is connected with the one end of resistance (R2), and resistance (R2) other end is connected with optocoupler (Q4) one end, optocoupler (Q4) one end and resistance (R4) one end connection, and output port (J1) is connected to, resistance (R4) other end is connected to power supply VCC_MCU, optocoupler (Q4) two other port with being connected respectively to power supply+5V and power supply, the 15th pin of integrated chip (U1) respectively with resistance (R3) One end connected with one end of optocoupler (Q1), resistance (R3) other end is connected with power supply+5V, optocoupler (Q1) other end and resistance (R1) one end connection, the other end of resistance (R1) are connected with power supply VCC_MCU, optocoupler (Q1) other end and output port (J1) The connection of the 2nd pin, optocoupler (Q1) other end with being connected to GNDZx power supplys, the 16th pin of integrated chip (U1) respectively with optocoupler (Q2) one end connects with the one end of optocoupler (Q3), optocoupler (Q2) other end one end with resistance (R5), electric capacity (C1) respectively One end connection of one end, the other end of optocoupler (Q3) and resistance (R6), resistance (R5) other end are connected to power supply VCC_MCU, The other end of electric capacity (C1) is connected with one end of resistance (R23), and the other end of resistance (R23) is distinguished with the other end of resistance (R6) With being connected to power supply, after the other end of the other end of optocoupler (Q2) and optocoupler (Q3) is connected with each other with output port (J1) the 5th Pin is connected, and the 2nd pin of integrated chip (U1) is connected with one end of optocoupler (Q6) and one end of optocoupler (Q5) respectively, and optocoupler (Q6) is another One end of one end one end with resistance (R18), one end of electric capacity (C2), the other end of optocoupler (Q5) and resistance (R19) respectively Connection, the other end of resistance (R18) are connected with power supply+5V, and electric capacity (C2) is connected with one end of resistance (R17), resistance (R17) GNDZx is connected the other end of the other end and resistance (R19) with power supply respectively, and the other end of optocoupler (Q6) is another with optocoupler (Q5) It is connected after the connection of one end with the 4th pin of output port (J1), the other end of optocoupler (Q6) is connected with power supply VCC_MCU, optocoupler (Q5) the other end is connected with power supply, and the 3rd pin of integrated chip (U1) is connected with one end of resistance (R20), integrated chip (U1) the 6th pin is connected after being connected with the 5th pin with one end of electric capacity (C4), and is connected with power supply+5V, integrated chip (U1) The 4th pin GNDZx is connected with power supply, GNDZx is connected the other end of electric capacity (C4) with power supply, the 7th of integrated chip (U1) the Pin is connected with the one end of resistance (R10), and GNDZx is connected the other end of resistance (R10) with power supply, and the 8th of integrated chip (U1) the Pin is connected with the one end of resistance (R8), the 9th pin of integrated chip (U1) respectively with one end of electric capacity (C5) and diode (VD1) One end is connected, and GNDZx is connected the other end of electric capacity (C5) with power supply, the 11st pin of integrated chip (U1) and the one of resistance (R9) End connection, the 13rd pin of integrated chip (U1) are connected with one end of resistance (R7), the 10th pin and electric capacity of integrated chip (U1) (C3) one end connection, the 12nd pin of integrated chip (U1) one end with fuse (F1), one end of electric capacity (C3), resistance respectively (R11) one end, one end of resistance (R12), one end of resistance (R13), one end of resistance (R14), diode (VD3) and electricity Hold positive pole one end connection of (E1), the other end of fuse (F1) is connected with+24V power supplys, negative pole one end power supply of electric capacity (E1) Ground GNDZx connections, one end of diode (VD2) one end with inductance (L1), the other end of resistance (R7), resistance (R11) respectively The other end, the other end of resistance (R12), the other end of resistance (R13) and resistance (R14) other end connection, metal-oxide-semiconductor (VT2) one end is connected with the other end of resistance (R9), the other end of metal-oxide-semiconductor (VT2) respectively with the other end of inductance (L1) and The other end connection of diode (VD2), the other end of metal-oxide-semiconductor (VT2) other end with resistance (R8), diode (VD1) respectively The other end, one end of metal-oxide-semiconductor (VT1), one end of diode (VD4), one end of Transient Suppression Diode (VD5) and common mode One end connection of inductance (L2), the other end of metal-oxide-semiconductor (VT1) are connected with the other end of resistance (R20), metal-oxide-semiconductor (VT1) other end Be connected respectively with one end of resistance (R21) and one end of resistance (R22), the other end of resistance (R21) respectively with resistance (R22) The other end, the other end of diode (VD4), the other end of Transient Suppression Diode (VD5) and common mode inductance (L2) it is another End connection, the 1st pin of output port (J1) with connecing power supply, the 2nd pin of integrated chip (U2) respectively with diode (VD6) one End, one end of diode (VD7) connect with one end of diode (VD12), the other end of diode (VD7) respectively with diode (VD11) one end, one end of electric capacity (C17), one end of diode (VD8), Transient Suppression Diode (VP1) one end and The other end connection of common mode inductance (L2), the other end of diode (VD6) one end with diode (VD10), electric capacity (C6) respectively One end, diode (VD9) one end and resistance (R15) one end connection, Transient Suppression Diode (VP1) respectively with resistance (R15) the other end connects with the other end of common mode inductance (L2), the other end of diode (VD8) respectively with diode (VD9) The other end, one end of resistance (R25) and one end connection of resistance (R24), the other end of resistance (R25) respectively with resistance (R24) the other end is connected with the positive terminal of electric capacity (E3), and GNDYx is connected the negative pole end of electric capacity (E3) with power supply, electric capacity (C6) the other end, the other end of electric capacity (C7), the other end point of the other end of diode (VD10) and diode (VD11) GNDYx is not connected with power supply, and the other end of diode (VD12) is connected with resistance (R16), the 3rd pin of integrated chip (U2) with The GNDYx connections of power supply ground, the 5th pin of integrated chip (U2) respectively with the 6th pin of integrated chip (U2) and one end of electric capacity (C8) Connection, the 8th pin of integrated chip (U2) other end with resistance (R16), the positive terminal of electric capacity (E2) and electric capacity (C9) respectively One end connection, the other end of the other end of electric capacity (C8), the negative pole end of electric capacity (E2) and electric capacity (C9) is respectively with power supply GNDYx connections, the 4th pin of integrated chip (U2) are connected with to one end of one end of optocoupler (Q10) and optocoupler (Q9) respectively, optocoupler (Q10) the other end one end with resistance (R26), one end of electric capacity (C11), the other end and resistance of optocoupler (Q9) respectively (R27) one end connection, the other end of optocoupler (Q10) are connected with power supply+5V, and GNDYx connects optocoupler (Q9) other end with power supply Connect, the other end of resistance (R26) is connected with power supply+3.3V, and one end of resistance (R29) is connected with the other end of electric capacity (C11), electricity The other end of resistance (R29) is connected with power supply respectively with the other end of resistance (R27), the other end of optocoupler (Q9) respectively with optocoupler (Q10) the other end connects with the 1st pin of output port (J2), the 7th pin of integrated chip (U2) respectively with to optocoupler (Q7) One end connects with the one end of optocoupler (Q8), the other end of optocoupler (Q7) one end with resistance (R31), the one of electric capacity (C10) respectively One end connection at end, the other end of optocoupler (Q8) and resistance (R28), the other end of optocoupler (Q7) are connected with power supply+3.3V, light Coupling (Q8) other end is connected with power supply, and the other end of resistance (R31) is connected with power supply+5V, one end of resistance (R30) and electric capacity (C10) other end connection, GNDYx is connected the other end of resistance (R30) with power supply respectively with the other end of resistance (R28), The other end of optocoupler (Q7) is connected with the other end of optocoupler (Q8) and the 2nd pin of output port (J2) respectively, output port (J2) The 3rd pin be connected with power supply.
Described bus slave station communication isolation circuit of not powering includes integrated chip (U1), described integrated chip (U1) 1st pin is connected with one end of resistance (R2), and resistance (R2) other end is connected with optocoupler (Q4) one end, optocoupler (Q4) one end and resistance (R4) one end connection, and output port (J1) is connected to, resistance (R4) other end is connected to power supply VCC_MCU, optocoupler (Q4) two other port with being connected respectively to power supply+5V and power supply, the 15th pin of integrated chip (U1) respectively with resistance (R3) One end connected with one end of optocoupler (Q1), resistance (R3) other end is connected with power supply+5V, optocoupler (Q1) other end and resistance (R1) one end connection, the other end of resistance (R1) are connected with power supply VCC_MCU, optocoupler (Q1) other end and output port (J1) The connection of the 2nd pin, optocoupler (Q1) other end with being connected to GNDZx power supplys, the 16th pin of integrated chip (U1) respectively with optocoupler (Q2) one end connects with the one end of optocoupler (Q3), optocoupler (Q2) other end one end with resistance (R5), electric capacity (C1) respectively One end connection of one end, the other end of optocoupler (Q3) and resistance (R6), resistance (R5) other end are connected to power supply VCC_MCU, The other end of electric capacity (C1) is connected with one end of resistance (R23), and the other end of resistance (R23) is distinguished with the other end of resistance (R6) With being connected to power supply, after the other end of the other end of optocoupler (Q2) and optocoupler (Q3) is connected with each other with output port (J1) the 5th Pin is connected, and the 2nd pin of integrated chip (U1) is connected with one end of optocoupler (Q6) and one end of optocoupler (Q5) respectively, and optocoupler (Q6) is another One end of one end one end with resistance (R18), one end of electric capacity (C2), the other end of optocoupler (Q5) and resistance (R19) respectively Connection, the other end of resistance (R18) are connected with power supply+5V, and electric capacity (C2) is connected with one end of resistance (R17), resistance (R17) GNDZx is connected the other end of the other end and resistance (R19) with power supply respectively, and the other end of optocoupler (Q6) is another with optocoupler (Q5) It is connected after the connection of one end with the 4th pin of output port (J1), the other end of optocoupler (Q6) is connected with power supply VCC_MCU, optocoupler (Q5) the other end is connected with power supply, and the 3rd pin of integrated chip (U1) is connected with one end of resistance (R20), integrated chip (U1) the 6th pin is connected after being connected with the 5th pin with one end of electric capacity (C4), and is connected with power supply+5V, integrated chip (U1) The 4th pin GNDZx is connected with power supply, GNDZx is connected the other end of electric capacity (C4) with power supply, the 7th of integrated chip (U1) the Pin is connected with the one end of resistance (R10), and GNDZx is connected the other end of resistance (R10) with power supply, and the 8th of integrated chip (U1) the Pin is connected with the one end of resistance (R8), the 9th pin of integrated chip (U1) respectively with one end of electric capacity (C5) and diode (VD1) One end is connected, and GNDZx is connected the other end of electric capacity (C5) with power supply, the 11st pin of integrated chip (U1) and the one of resistance (R9) End connection, the 13rd pin of integrated chip (U1) are connected with one end of resistance (R7), the 10th pin and electric capacity of integrated chip (U1) (C3) one end connection, the 12nd pin of integrated chip (U1) one end with fuse (F1), one end of electric capacity (C3), resistance respectively (R11) one end, one end of resistance (R12), one end of resistance (R13), one end of resistance (R14), diode (VD3) and electricity Hold positive pole one end connection of (E1), the other end of fuse (F1) is connected with+24V power supplys, negative pole one end power supply of electric capacity (E1) Ground GNDZx connections, one end of diode (VD2) one end with inductance (L1), the other end of resistance (R7), resistance (R11) respectively The other end, the other end of resistance (R12), the other end of resistance (R13) and resistance (R14) other end connection, metal-oxide-semiconductor (VT2) one end is connected with the other end of resistance (R9), the other end of metal-oxide-semiconductor (VT2) respectively with the other end of inductance (L1) and The other end connection of diode (VD2), the other end of metal-oxide-semiconductor (VT2) other end with resistance (R8), diode (VD1) respectively The other end, one end of metal-oxide-semiconductor (VT1), one end of diode (VD4), one end of Transient Suppression Diode (VD5) and common mode One end connection of inductance (L2), the other end of metal-oxide-semiconductor (VT1) are connected with the other end of resistance (R20), metal-oxide-semiconductor (VT1) other end Be connected respectively with one end of resistance (R21) and one end of resistance (R22), the other end of resistance (R21) respectively with resistance (R22) The other end, the other end of diode (VD4), the other end of Transient Suppression Diode (VD5) and common mode inductance (L2) it is another End connection, the 1st pin of output port (J1) with connecing power supply, the 2nd pin of integrated chip (U2) respectively with diode (VD6) one End, one end of diode (VD7) connect with one end of diode (VD12), the other end of diode (VD7) respectively with diode (VD11) one end, one end of electric capacity (C17), one end of Transient Suppression Diode (VP1) and common mode inductance (L2) it is another End connection, the other end of diode (VD6) one end with diode (VD10), one end of electric capacity (C6) and resistance respectively (R15) one end connection, Transient Suppression Diode (VP1) are another with the other end of resistance (R15) and common mode inductance (L2) respectively One end is connected, and the other end of diode (VD10) and the other end of diode (VD11) are connected with power supply respectively, diode (VD12) the other end is connected with resistance (R16), and the 3rd pin of integrated chip (U2) is connected with power supply, integrated chip (U2) 5th pin is connected with the 6th pin of integrated chip (U2) and one end of electric capacity (C8) respectively, the 8th pin of integrated chip (U2) respectively with One end connection of the other end of resistance (R16), the positive terminal of electric capacity (E2) and electric capacity (C9), the other end, the electricity of electric capacity (C8) The negative pole end and the other end of electric capacity (C9) for holding (E2) are connected with power supply respectively, the 4th pin of integrated chip (U2) respectively with Connected to one end of optocoupler (Q10) with one end of optocoupler (Q9), the other end of optocoupler (Q10) respectively one end with resistance (R24), One end connection of one end of electric capacity (C11), the other end of optocoupler (Q9) and resistance (R25), the other end and the electricity of optocoupler (Q10) Source+5V connections, GNDYx is connected optocoupler (Q9) other end with power supply, and the other end of resistance (R24) is connected with power supply+3.3V, electricity One end of resistance (R27) is connected with the other end of electric capacity (C11), and the other end of resistance (R25) is distinguished with the other end of resistance (R27) It is connected with power supply, the other end of optocoupler (Q10) is connected with the other end of optocoupler (Q9) and the 1st pin of output port (J2) respectively, 7th pin of integrated chip (U2) is connected with to one end of one end of optocoupler (Q7) and optocoupler (Q8) respectively, optocoupler (Q7) it is another One end of one end with resistance (R29), one end of electric capacity (C10), the other end of optocoupler (Q8) and resistance (R26) respectively is held to connect Connect, the other end of optocoupler (Q7) is connected with power supply+3.3V, and optocoupler (Q8) other end is connected with power supply, resistance (R29) it is another End is connected with power supply+5V, and one end of resistance (R28) is connected with the other end of electric capacity (C10), the other end and the electricity of resistance (R26) Hindering the other end of (R28), GNDYx is connected with power supply respectively, the other end of optocoupler (Q7) respectively with the other end of optocoupler (Q8) and The 2nd pin connection of output port (J2), the 3rd pin of output port (J2) are connected with power supply.
M-bus buses disclosed by the invention be one kind can power, be nonpolarity, two-wire system communication mechanism, can free topology, tool Have that communication apparatus capacity is big, communication speed is high, and design is simple, and wiring is convenient, the features such as strong antijamming capability.Using can power point Cloth control protocol can ensure that in the case of 252 equipment networks any appliance reporting events time is less than 100mS, and multiple spot is set Standby report simultaneously is extracted one by one, will not produce network conflict.Described SM100B chips realize main website, have following functions special Point：Quiescent dissipation representative value is less than 1mA；Operating voltage range is wide：12V~36V；Carry internal voltage stabilizing output：+ 5V, 10mA；Under Row receives the full width voltage demodulation of code, up signaling electric current loop modulation, strong antijamming capability；252 node devices can at most be mounted；It is logical Distance 1200m is interrogated, uplink communication speed is up to 19200bps, and downgoing communication speed is up to 9600；Using half duplex communication.It is described SM001B chips realize slave station, there are following functions：Quiescent dissipation representative value is less than 100uA；Operating voltage range is wide：7V~ 36V；Carry internal optional voltage stabilizing output：+ 5V or+3.3V；Up signaling electric current loop modulation, the descending full width voltage demodulation of receipts code, Strong antijamming capability；Communication distance 1200m, uplink communication speed is up to 19200bps, and downgoing communication speed is up to 9600；Using Half pair is attacked communication.
Beneficial effect of the present invention：The present invention is reasonable in design, simple in construction, and power supply, can with communicating multiplex bus and nonpolarity Free topology, the life-span of light source can be extended, improve working environment, improved operating efficiency, realize a variety of illuminating effects, management service It is convenient, there is higher economic rate of return.
Brief description of the drawings
Fig. 1 is circuit connection diagram of the present invention；
Fig. 2 is that SM100B chips of the present invention realize main website circuit diagram；
Fig. 3 is that SM001B chips of the present invention realize slave station circuit diagram；
Fig. 4 is the bus-powered circuit diagram of the present invention；
Fig. 5 is bus of the present invention not power supply circuit schematic diagram；
Fig. 6 is the bus-powered slave station communication isolation circuit schematic diagram of the present invention；
Fig. 7 is that bus of the present invention is not powered slave station communication isolation circuit schematic diagram.
Embodiment
The electrodeless two-wire system communication m-bus buses as illustrated, free topology type can power, include the realization of SM100B chips Main website circuit 1, SM001B chips realize slave station circuit 2.
Described SM100B chips realize that main website circuit 1 includes integrated chip (U1), the 1st of described integrated chip (U1) the Pin is connected with the one end of resistance (R2), and resistance (R2) other end is connected with optocoupler (Q4) one end, optocoupler (Q4) one end and resistance (R4) one end connection, and output port (J1) is connected to, resistance (R4) other end is connected to power supply VCC_MCU, optocoupler (Q4) two other port with being connected respectively to power supply+5V and power supply, the 15th pin of integrated chip (U1) respectively with resistance (R3) One end connected with one end of optocoupler (Q1), resistance (R3) other end is connected with power supply+5V, optocoupler (Q1) other end and resistance (R1) one end connection, the other end of resistance (R1) are connected with power supply VCC_MCU, optocoupler (Q1) other end and output port (J1) The connection of the 2nd pin, optocoupler (Q1) other end with being connected to GNDZx power supplys, the 16th pin of integrated chip (U1) respectively with optocoupler (Q2) one end connects with the one end of optocoupler (Q3), optocoupler (Q2) other end one end with resistance (R5), electric capacity (C1) respectively One end connection of one end, the other end of optocoupler (Q3) and resistance (R6), resistance (R5) other end are connected to power supply VCC_MCU, The other end of electric capacity (C1) is connected with one end of resistance (R23), and the other end of resistance (R23) is distinguished with the other end of resistance (R6) With being connected to power supply, after the other end of the other end of optocoupler (Q2) and optocoupler (Q3) is connected with each other with output port (J1) the 5th Pin is connected, and the 2nd pin of integrated chip (U1) is connected with one end of optocoupler (Q6) and one end of optocoupler (Q5) respectively, and optocoupler (Q6) is another One end of one end one end with resistance (R18), one end of electric capacity (C2), the other end of optocoupler (Q5) and resistance (R19) respectively Connection, the other end of resistance (R18) are connected with power supply+5V, and electric capacity (C2) is connected with one end of resistance (R17), resistance (R17) GNDZx is connected the other end of the other end and resistance (R19) with power supply respectively, and the other end of optocoupler (Q6) is another with optocoupler (Q5) It is connected after the connection of one end with the 4th pin of output port (J1), the other end of optocoupler (Q6) is connected with power supply VCC_MCU, optocoupler (Q5) the other end is connected with power supply, and the 3rd pin of integrated chip (U1) is connected with one end of resistance (R20), integrated chip (U1) the 6th pin is connected after being connected with the 5th pin with one end of electric capacity (C4), and is connected with power supply+5V, integrated chip (U1) The 4th pin GNDZx is connected with power supply, GNDZx is connected the other end of electric capacity (C4) with power supply, the 7th of integrated chip (U1) the Pin is connected with the one end of resistance (R10), and GNDZx is connected the other end of resistance (R10) with power supply, and the 8th of integrated chip (U1) the Pin is connected with the one end of resistance (R8), the 9th pin of integrated chip (U1) respectively with one end of electric capacity (C5) and diode (VD1) One end is connected, and GNDZx is connected the other end of electric capacity (C5) with power supply, the 11st pin of integrated chip (U1) and the one of resistance (R9) End connection, the 13rd pin of integrated chip (U1) are connected with one end of resistance (R7), the 10th pin and electric capacity of integrated chip (U1) (C3) one end connection, the 12nd pin of integrated chip (U1) one end with fuse (F1), one end of electric capacity (C3), resistance respectively (R11) one end, one end of resistance (R12), one end of resistance (R13), one end of resistance (R14), diode (VD3) and electricity Hold positive pole one end connection of (E1), the other end of fuse (F1) is connected with+24V power supplys, negative pole one end power supply of electric capacity (E1) Ground GNDZx connections, one end of diode (VD2) one end with inductance (L1), the other end of resistance (R7), resistance (R11) respectively The other end, the other end of resistance (R12), the other end of resistance (R13) and resistance (R14) other end connection, metal-oxide-semiconductor (VT2) one end is connected with the other end of resistance (R9), the other end of metal-oxide-semiconductor (VT2) respectively with the other end of inductance (L1) and The other end connection of diode (VD2), the other end of metal-oxide-semiconductor (VT2) other end with resistance (R8), diode (VD1) respectively The other end, one end of metal-oxide-semiconductor (VT1), one end of diode (VD4), one end of Transient Suppression Diode (VD5) and common mode One end connection of inductance (L2), the other end of metal-oxide-semiconductor (VT1) are connected with the other end of resistance (R20), metal-oxide-semiconductor (VT1) other end Be connected respectively with one end of resistance (R21) and one end of resistance (R22), the other end of resistance (R21) respectively with resistance (R22) The other end, the other end of diode (VD4), the other end of Transient Suppression Diode (VD5) and common mode inductance (L2) it is another End connection, the 1st pin of output port (J1) is with connecing power supply.
Bus signals receiving circuit is inputted by REVIN pins, after demodulation by RXD pins output TTL signal by optocoupler every Main website MCU is given from circuit, bus transtation mission circuit completes asynchronous signalling function, and MCU TTL signal passes through optical coupling isolation circuit Chip is inputted by TXD pins afterwards, modulated signal is formed in bus.When TXD sends high level, VT1 is driven total by BUSH High level is exported on line；When TXD sends low level, low level is exported in bus by BUSL drivings VT2.Resistance R11 and R16 It is primarily used to protection and driving pin damage SM100B is coupled to by the interelectrode capacity of metal-oxide-semiconductor when level saltus step in bus.
When traffic rate reaches more than 9.6Kbps, common single photoelectric coupled circuit is difficult due to the limitation of response time and power consumption With meet demand, high speed photo coupling cost is higher, and for saving cost, TXD and RXD optical coupling isolation circuit are using double photocoupler sets Into can rapidly be responded using electric capacity C1, C3 charge and discharge electro ultrafiltration at the hopping edge of level, the circuit can realize low work( The unification of consumption and high speed.
Resistance R12 and R13 effect mainly have two：It is to be switched to by high level send low electricity in TC100B under normal circumstances Usually, the interelectrode capacity to bus provides the loop released；It is the load equipment in bus under abnormal conditions due to rectifier bridge In the case of shorted diode damage with reverse-filling, the high current poured in down a chimney when being pulled down for bus provides current limliting.This is in exception In the case of, between pulling down low period, have lasting electric current on current-limiting resistance R12, R13 and VT2, large area need to be considered during fabric swatch Radiating.
RB concatenates 120K biasing resistors and used for internal current source, it is desirable to resistance precision ± 1%.
VD4 is mainly in bus short circuit, when bus level is by high step-down, there is provided continuous current circuit；VD3 is also in total Line provides bleed-off circuit when having big voltage x current；VD5 gives inductance L1 afterflows, prevents due to the presence of the induced electromotive force of inductance Cause that VT1 can not be closed in current-limiting protection.
Described SM001B chips realize that slave station circuit 2 includes integrated chip (U2), the 2nd pin difference of integrated chip (U2) One end of one end, diode (VD7) and one end of diode (VD12) with diode (VD6) are connected, diode (VD7) it is another One end one end with diode (VD11), one end of electric capacity (C17), one end of diode (VD8), Transient Suppression Diode respectively (VP1) connection of the other end of one end and common mode inductance (L2), the other end of diode (VD6) respectively with diode (VD10) One end, one end of electric capacity (C6), one end of diode (VD9) and resistance (R15) one end connection, Transient Suppression Diode (VP1) other end is connected with the other end of resistance (R15) and the other end of common mode inductance (L2) respectively, diode (VD8) it is another One end of one end other end with diode (VD9), one end of resistance (R25) and resistance (R24) respectively is connected, resistance (R25) the other end is connected with the other end of resistance (R24) and the positive terminal of electric capacity (E3) respectively, the negative pole end of electric capacity (E3) with Connect, the other end of electric capacity (C6), the other end of electric capacity (C7), the other end and diode of diode (VD10) power supply (VD11) the other end is connected with power supply respectively, and the other end of diode (VD12) is connected with resistance (R16), integrated chip (U2) the 3rd pin is connected with power supply, the 5th pin of integrated chip (U2) the 6th pin and electric capacity with integrated chip (U2) respectively (C8) one end connection, the 8th pin of integrated chip (U2) respectively the other end with resistance (R16), electric capacity (E2) positive terminal with And one end connection of electric capacity (C9), the other end point of the other end of electric capacity (C8), the negative pole end of electric capacity (E2) and electric capacity (C9) It is not connected with power supply, the 4th pin of integrated chip (U2) is connected with the 1st pin of output port (J2), and the 7th of integrated chip (U2) the Pin is connected with the 2nd pin of output port (J2), and the 3rd pin of output port (J2) is connected with power supply.

Claims (4)

  1. The electrodeless two-wire system communication m-bus buses 1. free topology type can power, it is characterised in that：Including bus-powered circuit, always Line not do not power and slave station communication isolation circuit and pass through SM100B by power supply circuit, bus-powered slave station communication isolation circuit, bus Chip realize main website circuit, SM001B chips realize slave station circuit be used for realize bus-powered, bus do not power, it is bus-powered from Communication of standing is isolated, bus is not powered, and slave station communicates isolation features, and described bus-powered circuit includes integrated chip U1, described Integrated chip U1 the 1st pin is connected with resistance R2 one end, and the resistance R2 other ends are connected with optocoupler Q4 one end, optocoupler Q4 one end with Resistance R4 one end connection, and output port J1 is connected to, the resistance R4 other ends are connected to power supply VCC_MCU, and optocoupler Q4 is another Outer two ports with being connected respectively to power supply+5V and power supply, integrated chip U1 the 15th pin one end with resistance R3 and light respectively Coupling Q1 one end connection, the resistance R3 other ends are connected with power supply+5V, and the optocoupler Q1 other ends are connected with resistance R1 one end, resistance The R1 other end is connected with power supply VCC_MCU, and the optocoupler Q1 other ends are connected with output port J1 the 2nd pin, the optocoupler Q1 other ends With being connected to GNDZx power supplys, integrated chip U1 the 16th pin is connected with optocoupler Q2 one end and optocoupler Q3 one end respectively, optocoupler The Q2 other ends one end with resistance R5, electric capacity C1 one end, the optocoupler Q3 other end and resistance R6 respectively one end are connected, electricity The resistance R5 other ends are connected to power supply VCC_MCU, and the electric capacity C1 other end is connected with resistance R23 one end, the resistance R23 other end With the resistance R6 other end with being connected respectively to power supply, after the optocoupler Q2 other end and optocoupler the Q3 other end are connected with each other with it is defeated Exit port J1 the 5th pin connection, integrated chip U1 the 2nd pin are connected with optocoupler Q6 one end and optocoupler Q5 one end respectively, light The coupling Q6 other ends respectively one end with resistance R18, electric capacity C2 one end, the optocoupler Q5 other end and resistance R19 one end connect Connect, the resistance R18 other end is connected with power supply+5V, and electric capacity C2 is connected with resistance R17 one end, resistance the R17 other end and electricity Hindering the R19 other end, GNDZx is connected with power supply respectively, the optocoupler Q6 other end be connected with the optocoupler Q5 other end after with output Port J1 the 4th pin connection, the optocoupler Q6 other end are connected with power supply VCC_MCU, and the optocoupler Q5 other end is connected with power supply, Integrated chip U1 the 3rd pin is connected with resistance R20 one end, integrated chip U1 the 6th pin be connected with the 5th pin after with electric capacity C4 One end connection, and be connected with power supply+5V, GNDZx is connected integrated chip U1 the 4th pin with power supply, and electric capacity C4's is another GNDZx is connected with power supply at end, and integrated chip U1 the 7th pin is connected with resistance R10 one end, resistance the R10 other end and electricity Source GNDZx connections, integrated chip U1 the 8th pin be connected with resistance R8 one end, integrated chip U1 the 9th pin respectively with electric capacity C5 one end is connected with diode VD1 one end, and GNDZx is connected the electric capacity C5 other end with power supply, and the of integrated chip U1 11 pin are connected with resistance R9 one end, and integrated chip U1 the 13rd pin is connected with resistance R7 one end, and the 10th of integrated chip U1 the Pin is connected with electric capacity C3 one end, integrated chip U1 the 12nd pin one end with fuse F1, electric capacity C3 one end, resistance respectively R11 one end, resistance R12 one end, resistance R13 one end, resistance R14 one end, diode VD3 and electric capacity E1 positive pole One end connects, and the fuse F1 other end is connected with+24V power supplys, the GNDZx connections of electric capacity E1 negative pole one end power supply ground, two poles Pipe VD2 one end respectively one end with inductance L1, the resistance R7 other end, the resistance R11 other end, resistance R12 the other end, The other end connection of resistance the R13 other end and resistance R14, metal-oxide-semiconductor VT2 one end are connected with the resistance R9 other end, MOS The pipe VT2 other end is connected with the inductance L1 other end and the diode VD2 other end respectively, metal-oxide-semiconductor VT2 other end difference The other end, the diode VD1 other end, metal-oxide-semiconductor VT1 one end, diode VD4 one end, transient state with resistance R8 suppress two Pole pipe VD5 one end and common mode inductance L2 one end connection, the metal-oxide-semiconductor VT1 other end are connected with the resistance R20 other end, The metal-oxide-semiconductor VT1 other ends are connected with resistance R21 one end and resistance R22 one end respectively, the resistance R21 other end respectively with electricity Hinder the another of the R22 other end, the diode VD4 other end, the Transient Suppression Diode VD5 other end and common mode inductance L2 End connection, output port J1 the 1st pin with connecing power supply, integrated chip U2 the 2nd pin one end with diode VD6, two poles respectively Pipe VD7 one end connects with diode VD12 one end, the diode VD7 other end one end with diode VD11, electricity respectively The other end for holding C17 one end, diode VD8 one end, Transient Suppression Diode VP1 one end and common mode inductance L2 connects Connect, the diode VD6 other end one end with diode VD10, electric capacity C6 one end, diode VD9 one end and electricity respectively Hinder R15 one end connection, the Transient Suppression Diode VP1 other ends are another with the resistance R15 other end and common mode inductance L2 respectively One end connects, the diode VD8 other end other end with diode VD9, resistance R25 one end and resistance R24 respectively One end is connected, and the resistance R25 other end is connected with the resistance R24 other end and electric capacity E3 positive terminal respectively, and electric capacity E3's is negative Extremely it is connected, the electric capacity C6 other end, the electric capacity C7 other end, diode the VD10 other end and diode with power supply The VD11 other end is connected with power supply respectively, and the diode VD12 other end is connected with resistance R16, and the 3rd of integrated chip U2 the Pin is connected with power supply, and integrated chip U2 the 5th pin is connected with integrated chip U2 the 6th pin and electric capacity C8 one end respectively, collection It is connected into one end of chip U2 the 8th the pin other end with resistance R16, electric capacity E2 positive terminal and electric capacity C9 respectively, electric capacity The other end of the C8 other end, electric capacity E2 negative pole end and electric capacity C9 is connected with power supply respectively, integrated chip U2 the 4th pin It is connected with output port J2 the 1st pin, integrated chip U2 the 7th pin is connected with output port J2 the 2nd pin, output port J2's 3rd pin is connected with power supply, and described SM100B chips realize that main website circuit includes integrated chip U1, described integrated chip U1 The 1st pin be connected with resistance R2 one end, the resistance R2 other ends are connected with optocoupler Q4 one end, the one of optocoupler Q4 one end and resistance R4 End connection, and output port J1 is connected to, the resistance R4 other ends are connected to power supply VCC_MCU, two other port of optocoupler Q4 With being connected respectively to power supply+5V and power supply, integrated chip U1 the 15th pin respectively with resistance R3 one end and optocoupler Q1 one end Connection, the resistance R3 other ends are connected with power supply+5V, and the optocoupler Q1 other ends are connected with resistance R1 one end, the resistance R1 other end It is connected with power supply VCC_MCU, the optocoupler Q1 other ends are connected with output port J1 the 2nd pin, and the optocoupler Q1 other ends are connected to GNDZx Power supply, integrated chip U1 the 16th pin is connected with optocoupler Q2 one end and optocoupler Q3 one end respectively, the optocoupler Q2 other ends point One end of one end of one end, electric capacity C1, the optocoupler Q3 other end and resistance R6 not with resistance R5 is connected, the resistance R5 other ends Power supply VCC_MCU is connected to, the electric capacity C1 other end is connected with resistance R23 one end, and the resistance R23 other end is with resistance R6's The other end with being connected respectively to power supply, the optocoupler Q2 other end and optocoupler Q3 other end be connected with each other after with output port J1's 5th pin is connected, and integrated chip U1 the 2nd pin is connected with optocoupler Q6 one end and optocoupler Q5 one end respectively, the optocoupler Q6 other ends One end with resistance R18, electric capacity C2 one end, the optocoupler Q5 other end and resistance R19 one end are connected respectively, resistance R18 The other end be connected with power supply+5V, electric capacity C2 is connected with resistance R17 one end, and the resistance R17 other end is another with resistance R19's GNDZx is connected with power supply respectively for one end, the optocoupler Q6 other end be connected with the optocoupler Q5 other end after with output port J1's 4th pin is connected, and the optocoupler Q6 other end is connected with power supply VCC_MCU, and the optocoupler Q5 other end is connected with power supply, integrated chip U1 the 3rd pin is connected with resistance R20 one end, and integrated chip U1 the 6th pin connects after being connected with the 5th pin with electric capacity C4 one end Connect, and be connected with power supply+5V, GNDZx is connected integrated chip U1 the 4th pin, electric capacity the C4 other end and power supply with power supply Ground GNDZx connections, integrated chip U1 the 7th pin are connected with resistance R10 one end, resistance R10 other end GNDZx with power supply Connection, integrated chip U1 the 8th pin is connected with resistance R8 one end, integrated chip U1 the 9th pin one end with electric capacity C5 respectively Connected with diode VD1 one end, GNDZx is connected the electric capacity C5 other end with power supply, integrated chip U1 the 11st pin and electricity R9 one end connection is hindered, integrated chip U1 the 13rd pin is connected with resistance R7 one end, integrated chip U1 the 10th pin and electric capacity C3 one end connection, integrated chip U1 the 12nd pin one end with fuse F1, electric capacity C3 one end, the one of resistance R11 respectively End, resistance R12 one end, resistance R13 one end, resistance R14 one end, diode VD3 and electric capacity E1 positive pole one end connect Connect, the fuse F1 other end is connected with+24V power supplys, the GNDZx connections of electric capacity E1 negative pole one end power supply ground, diode VD2's One end one end with inductance L1, the resistance R7 other end, the resistance R11 other end, the resistance R12 other end, resistance R13 respectively The other end and resistance R14 other end connection, metal-oxide-semiconductor VT2 one end is connected with the resistance R9 other end, metal-oxide-semiconductor VT2's The other end is connected with the inductance L1 other end and the diode VD2 other end respectively, the metal-oxide-semiconductor VT2 other end respectively with resistance The R8 other end, the diode VD1 other end, metal-oxide-semiconductor VT1 one end, diode VD4 one end, Transient Suppression Diode VD5 One end and common mode inductance L2 one end connection, the metal-oxide-semiconductor VT1 other end is connected with the resistance R20 other end, metal-oxide-semiconductor VT1 The other end is connected with resistance R21 one end and resistance R22 one end respectively, and the resistance R21 other end is another with resistance R22 respectively One end, the other end connection of the diode VD4 other end, the Transient Suppression Diode VD5 other end and common mode inductance L2, it is defeated With connecing power supply, described SM001B chips realize that slave station circuit includes integrated chip U2, integrated chip U2 to exit port J1 the 1st pin One end of the 2nd pin one end with diode VD6, diode VD7 one end and diode VD12 respectively be connected, diode VD7 The other end one end with diode VD11, electric capacity C17 one end, diode VD8 one end, Transient Suppression Diode respectively The connection of VP1 one end and common mode inductance the L2 other end, the diode VD6 other end respectively one end with diode VD10, One end connection of electric capacity C6 one end, diode VD9 one end and resistance R15, Transient Suppression Diode VP1 other ends difference It is connected with the resistance R15 other end and the common mode inductance L2 other end, the diode VD8 other end is respectively with diode VD9's One end connection of the other end, resistance R25 one end and resistance R24, the resistance R25 other end are another with resistance R24 respectively End is connected with electric capacity E3 positive terminal, and electric capacity E3 negative pole end is connected with power supply, the electric capacity C6 other end, electric capacity C7 it is another The other end at end, the diode VD10 other end and diode VD11 is connected with power supply respectively, and diode VD12's is another End is connected with resistance R16, and integrated chip U2 the 3rd pin is connected with power supply, integrated chip U2 the 5th pin respectively with integrated chip U2 the 6th pin connects with electric capacity C8 one end, and the other end with resistance R16, electric capacity E2 be just respectively for integrated chip U2 the 8th pin Extreme and electric capacity C9 one end connection, the other end difference of the electric capacity C8 other end, electric capacity E2 negative pole end and electric capacity C9 It is connected, integrated chip U2 the 4th pin is connected with output port J2 the 1st pin, integrated chip U2 the 7th pin and output with power supply Port J2 the 2nd pin connection, output port J2 the 3rd pin are connected with power supply.
  2. The electrodeless two-wire system communication m-bus buses 2. free topology type according to claim 1 can power, it is characterised in that： Power supply circuit does not include integrated chip U1, described integrated chip U1 the 1st pin and resistance R2 one end company to described bus Connect, the resistance R2 other ends are connected with optocoupler Q4 one end, and optocoupler Q4 one end is connected with resistance R4 one end, and is connected to output end Mouth J1, the resistance R4 other ends are connected to power supply VCC_MCU, and two other port of optocoupler Q4 is connected respectively to power supply+5V and power supply Ground, integrated chip U1 the 15th pin are connected with resistance R3 one end and optocoupler Q1 one end respectively, and the resistance R3 other ends and power supply+ 5V connections, the optocoupler Q1 other ends are connected with resistance R1 one end, and the resistance R1 other end is connected with power supply VCC_MCU, optocoupler Q1 The other end is connected with output port J1 the 2nd pin, the optocoupler Q1 other ends with being connected to GNDZx power supplys, the 16th of integrated chip U1 the Pin is connected with optocoupler Q2 one end and optocoupler Q3 one end respectively, the optocoupler Q2 other ends one end with resistance R5, electric capacity C1 respectively One end, optocoupler Q3 the other end and resistance R6 one end connection, the resistance R5 other ends are connected to power supply VCC_MCU, electric capacity The C1 other end is connected with resistance R23 one end, and the resistance R23 other end is connected respectively to power supply with the resistance R6 other end Ground, the optocoupler Q2 other end are connected after being connected with each other with the optocoupler Q3 other end with output port J1 the 5th pin, integrated chip U1 The 2nd pin be connected respectively with optocoupler Q6 one end and optocoupler Q5 one end, the optocoupler Q6 other ends respectively one end with resistance R18, One end connection of electric capacity C2 one end, the optocoupler Q5 other end and resistance R19, resistance the R18 other end and power supply+5V connect Connect, electric capacity C2 is connected with resistance R17 one end, and the resistance R17 other end and the resistance R19 other end are respectively with power supply GNDZx connections, the optocoupler Q6 other end are connected after being connected with the optocoupler Q5 other end with output port J1 the 4th pin, optocoupler Q6 The other end be connected with power supply VCC_MCU, the optocoupler Q5 other end is connected with power supply, integrated chip U1 the 3rd pin and resistance R20 one end connection, integrated chip U1 the 6th pin are connected after being connected with the 5th pin with electric capacity C4 one end, and with power supply+ 5V connections, GNDZx is connected integrated chip U1 the 4th pin with power supply, and GNDZx is connected the electric capacity C4 other end with power supply, collection The 7th pin into chip U1 is connected with resistance R10 one end, and GNDZx is connected the resistance R10 other end with power supply, integrated chip U1 the 8th pin is connected with resistance R8 one end, integrated chip U1 the 9th pin respectively with electric capacity C5 one end and diode VD1 One end is connected, and GNDZx is connected the electric capacity C5 other end with power supply, and integrated chip U1 the 11st pin connects with resistance R9 one end Connecing, integrated chip U1 the 13rd pin is connected with resistance R7 one end, and integrated chip U1 the 10th pin is connected with electric capacity C3 one end, Integrated chip U1 the 12nd pin one end with fuse F1, electric capacity C3 one end, resistance R11 one end, the one of resistance R12 respectively End, positive pole one end connection of resistance R13 one end, resistance R14 one end, diode VD3 and electric capacity E1, fuse F1's is another One end is connected with+24V power supplys, the GNDZx connections of electric capacity E1 negative pole one end power supply ground, diode VD2 one end respectively with inductance L1 one end, the resistance R7 other end, the resistance R11 other end, the resistance R12 other end, resistance the R13 other end and electricity Hinder R14 other end connection, metal-oxide-semiconductor VT2 one end is connected with the resistance R9 other end, the metal-oxide-semiconductor VT2 other end respectively with electricity The sense L1 other end connects with the diode VD2 other end, the metal-oxide-semiconductor VT2 other end other end with resistance R8, two poles respectively The pipe VD1 other end, metal-oxide-semiconductor VT1 one end, diode VD4 one end, Transient Suppression Diode VD5 one end and common mode Inductance L2 one end connection, the metal-oxide-semiconductor VT1 other end is connected with the resistance R20 other end, the metal-oxide-semiconductor VT1 other ends respectively with electricity Resistance R21 one end connects with resistance R22 one end, the resistance R21 other end other end with resistance R22, diode VD4 respectively The other end, Transient Suppression Diode VD5 the other end and common mode inductance L2 the other end connection, the 1st of output port J1 the Pin with connecing power supply, integrated chip U2 the 2nd pin one end with diode VD6, diode VD7 one end and diode VD12 respectively One end connection, one end with diode VD11, electric capacity C17 one end, transient state suppress two poles respectively for the diode VD7 other end The connection of pipe VP1 one end and common mode inductance the L2 other end, the diode VD6 other end respectively with diode VD10 one One end connection at end, electric capacity C6 one end and resistance R15, the Transient Suppression Diode VP1 other ends are another with resistance R15 respectively One end connects with the common mode inductance L2 other end, the diode VD10 other end and the diode VD11 other end respectively with electricity Connect to source, the diode VD12 other end is connected with resistance R16, and integrated chip U2 the 3rd pin is connected with power supply, integrates core Piece U2 the 5th pin is connected with integrated chip U2 the 6th pin and electric capacity C8 one end respectively, integrated chip U2 the 8th pin respectively with One end connection of the resistance R16 other end, electric capacity E2 positive terminal and electric capacity C9, the electric capacity C8 other end, electric capacity E2 it is negative Extreme and electric capacity C9 other end is connected with power supply respectively, and integrated chip U2 the 4th pin connects with output port J2 the 1st pin Connect, integrated chip U2 the 7th pin is connected with output port J2 the 2nd pin, and output port J2 the 3rd pin is connected with power supply.
  3. The electrodeless two-wire system communication m-bus buses 3. free topology type according to claim 1 can power, it is characterised in that： Described bus-powered slave station communication isolation circuit includes integrated chip U1, described integrated chip U1 the 1st pin and resistance R2 One end connection, the resistance R2 other ends are connected with optocoupler Q4 one end, and optocoupler Q4 one end is connected with resistance R4 one end, and is connected To output port J1, the resistance R4 other ends are connected to power supply VCC_MCU, two other port of optocoupler Q4 be connected respectively to power supply+ 5V and power supply, integrated chip U1 the 15th pin is connected with resistance R3 one end and optocoupler Q1 one end respectively, and resistance R3 is another End is connected with power supply+5V, and the optocoupler Q1 other ends are connected with resistance R1 one end, and resistance the R1 other end and power supply VCC_MCU connect Connect, the optocoupler Q1 other ends are connected with output port J1 the 2nd pin, the optocoupler Q1 other ends with being connected to GNDZx power supplys, integrated chip U1 the 16th pin is connected with optocoupler Q2 one end and optocoupler Q3 one end respectively, the optocoupler Q2 other ends respectively with resistance R5 one End, one end connection of electric capacity C1 one end, the optocoupler Q3 other end and resistance R6, the resistance R5 other ends are connected to power supply VCC_ MCU, electric capacity the C1 other end are connected with resistance R23 one end, and the resistance R23 other end is connected respectively with the resistance R6 other end With arriving power supply, it is connected, integrates with output port J1 the 5th pin after the optocoupler Q2 other end is connected with each other with the optocoupler Q3 other end Chip U1 the 2nd pin is connected with optocoupler Q6 one end and optocoupler Q5 one end respectively, and the optocoupler Q6 other ends are respectively with resistance R18's One end, one end connection of electric capacity C2 one end, the optocoupler Q5 other end and resistance R19, the resistance R18 other end and power supply+ 5V connections, electric capacity C2 are connected with resistance R17 one end, and the resistance R17 other end and the resistance R19 other end are respectively with power supply GNDZx connections, the optocoupler Q6 other end are connected after being connected with the optocoupler Q5 other end with output port J1 the 4th pin, optocoupler Q6 The other end be connected with power supply VCC_MCU, the optocoupler Q5 other end is connected with power supply, integrated chip U1 the 3rd pin and resistance R20 one end connection, integrated chip U1 the 6th pin are connected after being connected with the 5th pin with electric capacity C4 one end, and with power supply+ 5V connections, GNDZx is connected integrated chip U1 the 4th pin with power supply, and GNDZx is connected the electric capacity C4 other end with power supply, collection The 7th pin into chip U1 is connected with resistance R10 one end, and GNDZx is connected the resistance R10 other end with power supply, integrated chip U1 the 8th pin is connected with resistance R8 one end, integrated chip U1 the 9th pin respectively with electric capacity C5 one end and diode VD1 One end is connected, and GNDZx is connected the electric capacity C5 other end with power supply, and integrated chip U1 the 11st pin connects with resistance R9 one end Connecing, integrated chip U1 the 13rd pin is connected with resistance R7 one end, and integrated chip U1 the 10th pin is connected with electric capacity C3 one end, Integrated chip U1 the 12nd pin one end with fuse F1, electric capacity C3 one end, resistance R11 one end, the one of resistance R12 respectively End, positive pole one end connection of resistance R13 one end, resistance R14 one end, diode VD3 and electric capacity E1, fuse F1's is another One end is connected with+24V power supplys, the GNDZx connections of electric capacity E1 negative pole one end power supply ground, diode VD2 one end respectively with inductance L1 one end, the resistance R7 other end, the resistance R11 other end, the resistance R12 other end, resistance the R13 other end and electricity Hinder R14 other end connection, metal-oxide-semiconductor VT2 one end is connected with the resistance R9 other end, the metal-oxide-semiconductor VT2 other end respectively with electricity The sense L1 other end connects with the diode VD2 other end, the metal-oxide-semiconductor VT2 other end other end with resistance R8, two poles respectively The pipe VD1 other end, metal-oxide-semiconductor VT1 one end, diode VD4 one end, Transient Suppression Diode VD5 one end and common mode Inductance L2 one end connection, the metal-oxide-semiconductor VT1 other end is connected with the resistance R20 other end, the metal-oxide-semiconductor VT1 other ends respectively with electricity Resistance R21 one end connects with resistance R22 one end, the resistance R21 other end other end with resistance R22, diode VD4 respectively The other end, Transient Suppression Diode VD5 the other end and common mode inductance L2 the other end connection, the 1st of output port J1 the Pin with connecing power supply, integrated chip U2 the 2nd pin one end with diode VD6, diode VD7 one end and diode VD12 respectively One end connection, the diode VD7 other end one end with diode VD11, electric capacity C17 one end, diode VD8 respectively The other end connection of one end, Transient Suppression Diode VP1 one end and common mode inductance L2, diode VD6 other end difference One end of one end of one end, electric capacity C6, diode VD9 one end and resistance R15 with diode VD10 is connected, and transient state suppresses Diode VP1 is connected with the resistance R15 other end and the common mode inductance L2 other end respectively, diode VD8 other end difference One end of the other end, resistance R25 and resistance R24 one end with diode VD9 are connected, the resistance R25 other end respectively with The resistance R24 other end is connected with electric capacity E3 positive terminal, and GNDYx is connected electric capacity E3 negative pole end with power supply, electric capacity C6's The other end, the electric capacity C7 other end, the diode VD10 other end and diode VD11 the other end respectively with power supply GNDYx connections, the diode VD12 other end are connected with resistance R16, and GNDYx is connected integrated chip U2 the 3rd pin with power supply, Integrated chip U2 the 5th pin is connected with integrated chip U2 the 6th pin and electric capacity C8 one end respectively, integrated chip U2 the 8th pin One end of the other end with resistance R16, electric capacity E2 positive terminal and electric capacity C9 is connected respectively, electric capacity the C8 other end, electric capacity GNDYx is connected with power supply respectively for E2 negative pole end and the electric capacity C9 other end, integrated chip U2 the 4th pin respectively with to light Coupling Q10 one end connects with optocoupler Q9 one end, the optocoupler Q10 other end one end with resistance R24, the one of electric capacity C11 respectively One end connection at end, the optocoupler Q9 other end and resistance R27, the optocoupler Q10 other end are connected with power supply+5V, and optocoupler Q9 is another GNDYx is connected with power supply for one end, and the resistance R24 other end is connected with power supply+3.3V, and resistance R29 one end is with electric capacity C11's The other end is connected, and the resistance R29 other end is connected with power supply respectively with the resistance R27 other end, optocoupler Q9 other end difference Be connected with the optocoupler Q10 other end and output port J2 the 1st pin, integrated chip U2 the 7th pin respectively with to the one of optocoupler Q7 End connects with optocoupler Q8 one end, the optocoupler Q7 other end one end with resistance R31, electric capacity C10 one end, optocoupler Q8 respectively The other end and resistance R28 one end are connected, and the optocoupler Q7 other end is connected with power supply+3.3V, the optocoupler Q8 other ends and power supply Ground is connected, and the resistance R31 other end is connected with power supply+5V, and resistance R30 one end is connected with the electric capacity C10 other end, resistance GNDYx is connected the R30 other end and resistance the R28 other end with power supply respectively, the optocoupler Q7 other end respectively with optocoupler Q8 The other end connected with output port J2 the 2nd pin, output port J2 the 3rd pin is connected with power supply.
  4. The electrodeless two-wire system communication m-bus buses 4. free topology type according to claim 1 can power, it is characterised in that： Described bus slave station communication isolation circuit of not powering includes integrated chip U1, described integrated chip U1 the 1st pin and resistance R2 one end connection, the resistance R2 other ends are connected with optocoupler Q4 one end, and optocoupler Q4 one end is connected with resistance R4 one end, and even Output port J1 is connected to, the resistance R4 other ends are connected to power supply VCC_MCU, and two other port of optocoupler Q4 is connected respectively to power supply + 5V and power supply, integrated chip U1 the 15th pin is connected with resistance R3 one end and optocoupler Q1 one end respectively, and resistance R3 is another End is connected with power supply+5V, and the optocoupler Q1 other ends are connected with resistance R1 one end, and resistance the R1 other end and power supply VCC_MCU connect Connect, the optocoupler Q1 other ends are connected with output port J1 the 2nd pin, the optocoupler Q1 other ends with being connected to GNDZx power supplys, integrated chip U1 the 16th pin is connected with optocoupler Q2 one end and optocoupler Q3 one end respectively, the optocoupler Q2 other ends respectively with resistance R5 one End, one end connection of electric capacity C1 one end, the optocoupler Q3 other end and resistance R6, the resistance R5 other ends are connected to power supply VCC_ MCU, electric capacity the C1 other end are connected with resistance R23 one end, and the resistance R23 other end is connected respectively with the resistance R6 other end With arriving power supply, it is connected, integrates with output port J1 the 5th pin after the optocoupler Q2 other end is connected with each other with the optocoupler Q3 other end Chip U1 the 2nd pin is connected with optocoupler Q6 one end and optocoupler Q5 one end respectively, and the optocoupler Q6 other ends are respectively with resistance R18's One end, one end connection of electric capacity C2 one end, the optocoupler Q5 other end and resistance R19, the resistance R18 other end and power supply+ 5V connections, electric capacity C2 are connected with resistance R17 one end, and the resistance R17 other end and the resistance R19 other end are respectively with power supply GNDZx connections, the optocoupler Q6 other end are connected after being connected with the optocoupler Q5 other end with output port J1 the 4th pin, optocoupler Q6 The other end be connected with power supply VCC_MCU, the optocoupler Q5 other end is connected with power supply, integrated chip U1 the 3rd pin and resistance R20 one end connection, integrated chip U1 the 6th pin are connected after being connected with the 5th pin with electric capacity C4 one end, and with power supply+ 5V connections, GNDZx is connected integrated chip U1 the 4th pin with power supply, and GNDZx is connected the electric capacity C4 other end with power supply, collection The 7th pin into chip U1 is connected with resistance R10 one end, and GNDZx is connected the resistance R10 other end with power supply, integrated chip U1 the 8th pin is connected with resistance R8 one end, integrated chip U1 the 9th pin respectively with electric capacity C5 one end and diode VD1 One end is connected, and GNDZx is connected the electric capacity C5 other end with power supply, and integrated chip U1 the 11st pin connects with resistance R9 one end Connecing, integrated chip U1 the 13rd pin is connected with resistance R7 one end, and integrated chip U1 the 10th pin is connected with electric capacity C3 one end, Integrated chip U1 the 12nd pin one end with fuse F1, electric capacity C3 one end, resistance R11 one end, the one of resistance R12 respectively End, positive pole one end connection of resistance R13 one end, resistance R14 one end, diode VD3 and electric capacity E1, fuse F1's is another One end is connected with+24V power supplys, the GNDZx connections of electric capacity E1 negative pole one end power supply ground, diode VD2 one end respectively with inductance L1 one end, the resistance R7 other end, the resistance R11 other end, the resistance R12 other end, resistance the R13 other end and electricity Hinder R14 other end connection, metal-oxide-semiconductor VT2 one end is connected with the resistance R9 other end, the metal-oxide-semiconductor VT2 other end respectively with electricity The sense L1 other end connects with the diode VD2 other end, the metal-oxide-semiconductor VT2 other end other end with resistance R8, two poles respectively The pipe VD1 other end, metal-oxide-semiconductor VT1 one end, diode VD4 one end, Transient Suppression Diode VD5 one end and common mode Inductance L2 one end connection, the metal-oxide-semiconductor VT1 other end is connected with the resistance R20 other end, the metal-oxide-semiconductor VT1 other ends respectively with electricity Resistance R21 one end connects with resistance R22 one end, the resistance R21 other end other end with resistance R22, diode VD4 respectively The other end, Transient Suppression Diode VD5 the other end and common mode inductance L2 the other end connection, the 1st of output port J1 the Pin with connecing power supply, integrated chip U2 the 2nd pin one end with diode VD6, diode VD7 one end and diode VD12 respectively One end connection, one end with diode VD11, electric capacity C17 one end, transient state suppress two poles respectively for the diode VD7 other end The connection of pipe VP1 one end and common mode inductance the L2 other end, the diode VD6 other end respectively with diode VD10 one End, electric capacity C6 one end and resistance R15 one end connection, Transient Suppression Diode VP1 respectively with the resistance R15 other end and Common mode inductance L2 other end connection, the diode VD10 other end and the diode VD11 other end connect with power supply respectively Connect, the diode VD12 other end is connected with resistance R16, and integrated chip U2 the 3rd pin is connected with power supply, integrated chip U2's 5th pin is connected with integrated chip U2 the 6th pin and electric capacity C8 one end respectively, integrated chip U2 the 8th pin respectively with resistance R16 The other end, electric capacity E2 positive terminal and electric capacity C9 one end connection, the electric capacity C8 other end, electric capacity E2 negative pole end and The electric capacity C9 other end is connected with power supply respectively, integrated chip U2 the 4th pin respectively with to optocoupler Q10 one end and optocoupler Q9 One end connection, the optocoupler Q10 other end respectively one end with resistance R24, electric capacity C11 one end, optocoupler Q9 the other end with And resistance R25 one end connection, the optocoupler Q10 other end are connected with power supply+5V, GNDYx connects the optocoupler Q9 other ends with power supply Connect, the resistance R24 other end is connected with power supply+3.3V, and resistance R27 one end is connected with the electric capacity C11 other end, resistance R25 The other end be connected respectively with power supply with the resistance R27 other end, the optocoupler Q10 other end respectively with the optocoupler Q9 other end and Output port J2 the 1st pin connection, integrated chip U2 the 7th pin to optocoupler Q7 one end and optocoupler Q8 one end respectively with connecting Connect, the optocoupler Q7 other end one end with resistance R29, electric capacity C10 one end, the optocoupler Q8 other end and resistance R24 respectively One end connection, the optocoupler Q7 other end is connected with power supply+3.3V, and the optocoupler Q8 other ends are connected with power supply, and resistance R29's is another One end is connected with power supply+5V, and resistance R28 one end is connected with the electric capacity C10 other end, resistance the R24 other end and resistance R28 The other end GNDYx is connected with power supply respectively, the optocoupler Q7 other end other end and output port J2 with optocoupler Q8 respectively The connection of the 2nd pin, output port J2 the 3rd pin is connected with power supply.
CN201410713463.2A 2014-11-28 2014-11-28 Free topology type can power electrodeless two-wire system communication m bus buses Active CN104967548B (en)

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CN105471569B (en) * 2014-09-12 2018-10-26 株洲南车时代电气股份有限公司 Multinode electric current loop full-duplex communication circuit
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