CN207475583U - A kind of direct current carrier communication interface circuit of achievable power delivery - Google Patents
A kind of direct current carrier communication interface circuit of achievable power delivery Download PDFInfo
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- CN207475583U CN207475583U CN201721419322.5U CN201721419322U CN207475583U CN 207475583 U CN207475583 U CN 207475583U CN 201721419322 U CN201721419322 U CN 201721419322U CN 207475583 U CN207475583 U CN 207475583U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
A kind of direct current carrier communication interface circuit of achievable power delivery, including host communication interface circuit and slave communication interface circuit, the host communication interface circuit includes the upper bit port of connection and upper power circuit, upper transmission circuit and the upper receiving circuit of Master control chip MCU1, the slave communication interface circuit is arbitrarily connect including bit port under the connection and the next power circuit from control chip MCU2, the next transmission circuit and bottom receiving circuit, the upper bit port with lower bit port by two conducting wires.The two-wire interface unit IO1 1 of the utility model host communication interface circuit and slave communication interface circuit, IO1 2 and IO2 1, IO2 2 do not need to distinguish polarity when mutually plugging by two conducting wires, duplex communication therebetween can be realized, it can solve fault-tolerant sex chromosome mosaicism of the line traffic control mode in locellus installation, DC power supply can also be directly transported to slave, without in addition increasing individual power interface line, cost is saved.
Description
Technical field
The utility model belongs to the Communication Control Technology of household electrical appliance, smart home, more particularly to a kind of achievable power supply
The direct current carrier communication interface circuit of transmission can be widely applied to the installation of household electrical appliances locellus, the fields such as operation, remote X-by-Wire
It closes, such as the bath temperature of the indoor temperature control system of gas-heating water heater, gas heater adjusts operation, Intelligent bathroom system
In technology.
Background technology
It is also higher and higher to the functional requirement of the products such as household electrical appliance, smart home with people’s lives Quality advance,
So that household appliances and smart home are gradually intended to operate easyization, functional intellectualization, performance comfortableization.However, at some
Specific occasion is limited by product use environment, to product use and operation have to using locellus installation, locellus operation,
The means such as remote control.
At present, locellus installation is realized, the remote controlled manner of locellus operation is broadly divided into wireless remotecontrol and has line traffic control
Two ways.The controllability of wireless remotecontrol and flexible performance are high, but are limited to product cost, the limitation of the frequency range of radio signal
And the otherness and limitation in user installation space, especially it is embodied in shielding attenuation problem of the enclosure space to radio signal
On, therefore it is best solution that wired control program is not lost still in many application scenarios.
Line traffic control mode is directed to greatly the interactive communication between slave, at present there are many kinds of ripe communication modes, but
On hardware, any form be unable to do without two big channel of power supply and signal, and conventional communication mode is mostly led to using independent power supply
Road and signal path obtain 3 by existing state-of-the-art communication protocol pattern, on this independent Double channel scheme hardware and lead at least
Letter line makees carrier, and between each other must not misconnection hybrid junction, while communication line is complicated of high cost, once communication line occur it is mixed
Connect, will fault-tolerant sex chromosome mosaicism, directly affect the normal duplex communication between slave.
Utility model content
The utility model is in view of the above-mentioned drawbacks of the prior art, the direct current for providing a kind of achievable power delivery carries
Wave communication interface circuit, it can pass through the duplex communication of two conducting wires realizations therebetween, moreover it is possible to solve between host and slave
Certainly fault-tolerant sex chromosome mosaicism of the line traffic control mode in locellus installation, reduces communications cost.
In order to realize above-mentioned purpose, the utility model uses following technical measures：
A kind of direct current carrier communication interface circuit of achievable power delivery, leads to including host communication interface circuit and slave
Believe interface circuit, the host communication interface circuit includes the upper bit port of connection and the upper power supply electricity of Master control chip MCU1
Road, upper transmission circuit and upper receiving circuit, the slave communication interface circuit include the lower bit port of connection and from control cores
The next power circuit of piece MCU2, the next transmission circuit and the next receiving circuit, the upper bit port include two two-wire interface units
IO1-1, IO1-2 are parallel with polarity free capacitor C1, "A" end of car mouth between the two-wire interface unit IO1-1 and two-wire interface unit IO1-2
IO1-1 is connect respectively with upper power circuit, upper transmission circuit and upper receiving circuit, two-wire interface unit IO1-2 one end ground connection；
The lower bit port includes two two-wire interface units IO2-1, IO2-2, between the two-wire interface unit IO2-1 and two-wire interface unit IO2-2
The cathode output end ground connection VSS of polar protective circuit D3, the polar protective circuit D3 are parallel with, polar protective circuit D3 is just
Pole output terminal connects the next power circuit, the next transmission circuit and the next receiving circuit respectively, and the upper bit port is under
Bit port is arbitrarily connected by two conducting wires.
Preferably, the upper power circuit include 12V power supplys, resistance R9, R10, R11 and triode Q3, Q4,
Q7, the 12V power supplys are connected to the emitter of resistance R9 and triode Q4, and the other end of the resistance R9 is connected to described three again
The base stage of pole pipe Q4 and the emitter of triode Q3, the base stage of the triode Q3 connect the collector and electricity of the triode Q4
R10 is hindered, the collector of triode Q3 connects the two-wire interface unit IO1-1, and the other end of the resistance R10 connects the triode
The collector of Q7, the emitter ground connection of the triode Q7, the base stage of triode Q7 pass through the resistance R11 connections master control
The communications mouth RX1 and upper transmission circuit of coremaking piece MCU1.
Preferably, the upper transmission circuit includes resistance R1, R2, R12 and triode Q2, Q6, the two wires connect
Mouthful IO1-1 is connect with the resistance R1, resistance R2, resistance R1, resistance R2 the other end connect the collection of the triode Q2 respectively
Electrode, base stage, the emitter ground connection of triode Q2, the resistance R1 are also connected with the collector of the triode Q6, triode Q6
Base stage communications mouth TX1 and upper power circuit by the resistance R12 connections Master control chip MCU1, triode Q6
Emitter ground connection.
Preferably, the upper receiving circuit includes 5V power supplys, zener diode D1, diode D2, triode Q1, Q5
And resistance R3, R4, R5, R6, R7, R8, the two-wire interface unit IO1-1 connections zener diode D1, the sun of zener diode D1
Pole is connected with diode D2, resistance R4 and resistance R3, and the other end of resistance R3 connects the base stage of the triode Q1, two pole
The emitter of the anode of pipe D2, the other end of resistance R4 and triode Q1 is grounded, and the collector of triode Q1 passes through resistance
The R5 connections 5V power supplys, the collector of the triode Q1 also pass through resistance R6 connection resistance R7 and triode Q5, the electricity
The emitter for hindering the other end and the triode Q5 of R7 is directly grounded, and the collector of triode Q5 connects the master control coremaking
The collector of communications the mouth RX1, the triode Q5 of piece MCU1 also pass through the anode of the resistance R8 connections 5V power supplys.
Preferably, it is described bottom power circuit include diode D4, integrated regulator U1, electrolytic capacitor C3, C4 with
And the anode of regulated power supply VCC, the diode D4 connect the cathode output end of the polar protective circuit D3, diode D4
Cathode connect with the anode of the integrated regulator U1 input terminals and electrolytic capacitor C3, the cathode of electrolytic capacitor C3 ground connection
VSS forms input filter circuit, the ground terminal ground connection of the integrated regulator U1, the sum of output terminal connection regulated power supply VCC
The anode of electrolytic capacitor C4, the cathode ground connection of the electrolytic capacitor C4.
Preferably, it is described bottom transmission circuit include regulated power supply VCC, backward dioded D6, polarity free capacitor C2,
C5, triode Q10, Q11 and resistance R13, R21, R22, R23, the polar protective circuit D3 positive polarity output terminals connection electricity
Hold the collector of C2, resistance R13 and triode Q10, the transmitting of the capacitance C2, the resistance R13 other ends and the triode Q10
Extremely it is grounded VSS, the collector of access triode Q11, three pole after the base stage of the triode Q10 is connected with resistance R21
The collector of pipe Q11 also is grounded to form drop-down by resistance R22, and the emitter of triode Q11 is accessed by backward dioded D6
The base stage of regulated power supply VCC, the triode Q11 access the communications mouth from control chip MCU2 after connecting with resistance R23
TX2 is connected with polarity free capacitor C5, the polarity free capacitor C5 drop-downs ground connection between resistance R23 and communications mouth TX2
VSS.Preferably, the bottom receiving circuit includes regulated power supply VCC, zener diode D5, triode Q8, Q9 and resistance
R13, R14, R15, R16, R17, R18, R19, R20, the polar protective circuit D3 cathode output ends and zener diode D5
Cathode is connected, and zener diode D5 anodes are by the base stage of resistance R14 connecting triodes Q8, the emitter ground connection of triode Q8,
Ground connection forms drop-down after the base stage of the triode Q8 is connect with the resistance R15, and the collector of triode Q8 passes through resistance R17
Series voltage stabilizing power supply VCC forms pull-up, and the collector of the triode Q8 is also connect with resistance R16, R18, the R16 other ends
VSS is grounded, the resistance R18 other ends are connect with triode Q9 base stages, the emitter ground connection VSS of the triode Q9, triode
Access regulated power supply VCC forms pull-up after the collector of Q9 is connected with resistance R19, and the collector of the triode Q9 is and resistance
The communications mouth RX2 from control chip MCU2 is accessed after R20 series connection.
Preferably, the input terminal connection 5V power supplys of the Master control chip MCU1, output terminal ground connection；It is described from control core
The input terminal connection regulated power supply VCC of piece MCU2, output terminal ground connection VSS.
Preferably, the polar protective circuit D3 is rectifier bridge, described two two-wire interface unit IO2-1, IO2-2 difference
Connect the input terminal of the rectifier bridge.
Preferably, the model LM7805 circuit of three-terminal voltage-stabilizing integrated of the integrated regulator U1.
The beneficial effects of the utility model are：
Compared with prior art, between the utility model host communication interface circuit and slave communication interface circuit, only
Duplex communication and power delivery therebetween can be realized in the conducting wire that need to be distinguished by two without polarity, i.e., is led to by host
Two-wire interface unit IO1-1, IO1-2 and IO2-1, the IO2-2 of letter interface circuit and slave communication interface circuit are mutually butted (interface
Do not need to distinguish polarity when plugging into, i.e. IO1-1 plugs into IO2-1 or IO2-2, IO1-2 plug into IO2-2 or IO2-1), it solves
Line traffic control mode locellus installation in fault-tolerant sex chromosome mosaicism, and by interface connect aft engine can directly transport DC power supply to from
Machine, without in addition increasing individual power interface line.
Description of the drawings
Fig. 1 is principle schematic of the utility model using the master-slave communication interface circuit of two connecting lines；
Fig. 2 is the utility model host communication interface circuit diagram；
Fig. 3 is the utility model slave communication interface circuit schematic diagram.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
As shown in Figure 1-Figure 3, a kind of direct current carrier communication interface circuit of achievable power delivery, connects including main-machine communication
Mouth circuit and slave communication interface circuit, the host communication interface circuit include the upper bit port of connection and Master control chip MCU1
Upper power circuit, upper transmission circuit and upper receiving circuit, the slave communication interface circuit includes the next end of connection
Mouthful and the next power circuit from control chip MCU2, the next transmission circuit and the next receiving circuit, the upper bit port include
Two two-wire interface units IO1-1, IO1-2, polarity free capacitor is parallel between the two-wire interface unit IO1-1 and two-wire interface unit IO1-2
C1, "A" end of car mouth IO1-1 are connect respectively with upper power circuit, upper transmission circuit and upper receiving circuit, two-wire interface unit
IO1-2 one end is grounded.The lower bit port includes two two-wire interface unit IO2-1, IO2-2, the two-wire interface unit IO2-1 and two wires
The cathode output end ground connection VSS of polar protective circuit D3, the polar protective circuit D3, polarity are parallel between interface IO2-2
The cathode output end of protection circuit D3 connects the next power circuit, the next transmission circuit and the next receiving circuit respectively.Institute
It states bit port arbitrarily to connect by two conducting wires with lower bit port, conducting wire polarity is not needed to distinguish when interface is plugged into, IO1-1 plugs into
IO2-1 or IO2-2, IO1-2 plug into IO2-2 or IO2-1, and the polar protective circuit D3 is rectifier bridge, and described two two
Line interface IO2-1, IO2-2 connect the input terminal of the rectifier bridge respectively.When being in obstructed letter state between slave, pass through
Upper bit port, which connect aft engine with lower bit port, can directly transport DC power supply to slave, when being in communications status between slave
And host to slave send signal when, any end is all first to send out data, is followed by by information.
With reference to figure 2, the upper power circuit includes 12V power supplys, resistance R9, R10, R11 and triode Q3, Q4, Q7,
The 12V power supplys are connected to the emitter of resistance R9 and triode Q4, and the other end of the resistance R9 is connected to three pole again
The base stage of pipe Q4 and the emitter of triode Q3, the base stage of the triode Q3 connect the collector and resistance of the triode Q4
The collector of R10, triode Q3 connect the two-wire interface unit IO1-1, and the other end of the resistance R10 connects the triode Q7
Collector, the emitter ground connection of the triode Q7, the base stage of triode Q7 passes through the resistance R11 connections main control
The communications mouth RX1 and upper transmission circuit of chip MCU1.The upper transmission circuit include resistance R1, R2, R12 and
Triode Q2, Q6, the two-wire interface unit IO1-1 are connect with the resistance R1, resistance R2, resistance R1, resistance R2 the other end point
Collector, the base stage of the triode Q2, the emitter ground connection of triode Q2 are not connected, and the resistance R1 is also connected with described three
The collector of pole pipe Q6, the communications mouth that the base stage of triode Q6 passes through the resistance R12 connections Master control chip MCU1
TX1 and upper power circuit, the emitter ground connection of triode Q6.The upper receiving circuit includes 5V power supplys, zener diode
D1, diode D2, triode Q1, Q5 and resistance R3, R4, R5, R6, R7, R8, the two-wire interface unit IO1-1 connections voltage stabilizing two
The anode of pole pipe D1, zener diode D1 are connected with diode D2, resistance R4 and resistance R3, described in the other end connection of resistance R3
The base stage of triode Q1, the emitter of the anode of the diode D2, the other end of resistance R4 and triode Q1 are grounded,
The collector of triode Q1 is also connected by the resistance R5 connections 5V power supplys, the collector of the triode Q1 by resistance R6
Connecting resistance R7 and triode Q5, the other end of the resistance R7 and the emitter of the triode Q5 are directly grounded, triode Q5
Collector connect the communications mouth RX1 of the Master control chip MCU1, the collector of the triode Q5 also passes through resistance
The anode of the R8 connections 5V power supplys.
With reference to figure 3, it is described bottom power circuit include diode D4, integrated regulator U1, electrolytic capacitor C3, C4 and
The anode of regulated power supply VCC, the diode D4 connect the cathode output end of the polar protective circuit D3, diode D4's
Cathode is connect with the anode of the integrated regulator U1 input terminals and electrolytic capacitor C3, the cathode ground connection VSS of electrolytic capacitor C3,
Formed input filter circuit, the integrated regulator U1 ground terminal ground connection, output terminal connection regulated power supply VCC's and electrolysis
The anode of capacitance C4, the model LM7805 circuit of three-terminal voltage-stabilizing integrated of the integrated regulator U1, the electrolytic capacitor C4
Cathode ground connection.The bottom transmission circuit includes regulated power supply VCC, backward dioded D6, polarity free capacitor C2, C5, three poles
Pipe Q10, Q11 and resistance R13, R21, R22, R23, the polar protective circuit D3 positive polarity output terminals connection capacitance C2, electricity
The collector of R13 and triode Q10 is hindered, the emitter of the capacitance C2, the resistance R13 other ends and the triode Q10 connect
The collector of access triode Q11, the triode Q11 after the base stage of ground VSS, the triode Q10 are connected with resistance R21
Collector also be grounded to form drop-down by resistance R22, the emitter of triode Q11 passes through backward dioded D6 and accesses voltage stabilizing electricity
The base stage of source VCC, the triode Q11 access the communications mouth TX2 from control chip MCU2 after connecting with resistance R23,
Polarity free capacitor C5 is connected between resistance R23 and communications mouth TX2, the polarity free capacitor C5 drop-downs are grounded VSS, play
Filter action.The bottom receiving circuit include regulated power supply VCC, zener diode D5, triode Q8, Q9 and resistance R13,
R14, R15, R16, R17, R18, R19, R20, the polar protective circuit D3 cathode output ends and zener diode D5 cathode strings
Connection, zener diode D5 anodes are by the base stage of resistance R14 connecting triodes Q8, the emitter ground connection of triode Q8, and described three
Ground connection forms drop-down after the base stage of pole pipe Q8 is connect with the resistance R15, and the collector of triode Q8 is connected surely by resistance R17
Voltage source VCC forms pull-up, and the collector of the triode Q8 is also connect with resistance R16, R18, the R16 other ends ground connection
VSS, the resistance R18 other ends are connect with triode Q9 base stages, the emitter ground connection VSS of the triode Q9, the collection of triode Q9
Access regulated power supply VCC forms pull-up after electrode is connected with resistance R19, and the collector of the triode Q9 is gone here and there with resistance R20
The communications mouth RX2 from control chip MCU2 is accessed after connection.
The input terminal of the Master control chip MCU1 connects the 5V power supplys, output terminal ground connection；It is described from control chip
The input terminal connection regulated power supply VCC of MCU2, output terminal ground connection VSS.More in detail, two poles in the host communication interface circuit
Pipe D2 is switching mode diode, and triode Q1, Q2, Q5, Q6, Q7 are NPN type triode, and triode Q3, Q4 are three pole of positive-negative-positive
Pipe, the 5V power supplys, 12V power supplys are D.C. regulated power supply；Diode D4, D6 are switching mode in the host communication interface circuit
Diode, triode Q8, Q9, Q10 are NPN type triode, and the Q11 is PNP type triode.
As shown in Figure 1, when the host communication interface circuit is in running order, and obstructed letter shape is between slave
State, communications mouth TX1, RX1 of Master control chip MCU1 are in stablizing high level state, at this point, triode Q3, Q4, Q6,
Q7 is in saturation conduction state, and under 12V power drives, high level voltage power supply state is presented on two-wire interface unit IO1-1,
Voltage value V1 is slightly below 12V, is the power supply of the slave communication interface circuit.At this point, two interface of slave communication interface circuit
Also high level voltage V2 is presented between IO2-1, IO2-2, voltage value is equal to V1, and the voltage is after polar protective circuit D3
Output to integrated regulator U1, finally output generates the regulated power supply VCC of 5V.
As shown in Figure 1, when the host communication interface circuit is in running order, and in communication shape between slave
State, host send signal to slave, and the communications mouth TX1 of Master control chip MCU1 is in pulse square wave output state, at RX1
In locking states, at this time under the modulation of triode Q2, Q3, Q4, Q6, Q7, host interface IO1-1, IO1-2 and slave interface
On IO2-1, IO2-2 also present can afterflow in-phase pulse state, due to communication pulse signal high frequency characteristics and can afterflow energy
Power has no effect on host and the power supply of slave is conveyed at this time under communications status.Host is to the signal of communication that slave is sent by steady
After the clamper processing for pressing diode D5, it is input to using triode Q8, Q9 and its peripheral circuit shaping modulation from control chip
The communications mouth RX2 of MCU2 is read in for slave, when slave carries out data reading, from the communications mouth of control chip MCU2
TX2 is in high level locking states.
As shown in Figure 1, when the host communication interface circuit is in running order, and in communication shape between slave
State, slave send signal to host, pulse square wave output state are in from the communications mouth TX2 of control chip MCU2, defeated
Go out under the modulating action of signal, presentation in-phase pulse state on slave interface IO2-1, IO2-2, signal transmission to host IO1-1,
It is defeated using triode Q1, Q5 and its peripheral circuit shaping modulation after the clamper processing of zener diode D1 on IO1-2
The communications mouth RX1 entered to Master control chip MCU1 is read in for host, when host carries out data reading, Master control chip
The communications mouth TX1 of MCU1 is in high level locking states.
In conclusion between the utility model host communication interface circuit and slave communication interface circuit, it is only necessary to pass through two
Duplex communication and power delivery therebetween can be realized without the conducting wire that polarity is distinguished for root, that is, pass through host communication interface electricity
Two-wire interface unit IO1-1, IO1-2 and IO2-1, the IO2-2 of road and slave communication interface circuit be mutually butted (when interface is plugged into without
Polarity need to be distinguished, i.e. IO1-1 plugs into IO2-1 or IO2-2, IO1-2 plug into IO2-2 or IO2-1), and connected by interface
DC power supply can be directly transported to slave by connecing aft engine, without in addition increasing individual power interface line.
The above content is combine specific preferred embodiment further detailed description of the utility model, it is impossible to
Assert that the specific implementation of the utility model is confined to these explanations.For the ordinary skill of the utility model technical field
For personnel, without departing from the concept of the premise utility, several simple deduction or replace can also be made, should all be regarded
To belong to the scope of protection of the utility model.
Claims (10)
1. a kind of direct current carrier communication interface circuit of achievable power delivery communicates including host communication interface circuit and slave
Interface circuit, upper power circuit of the host communication interface circuit including the upper bit port of connection and Master control chip MCU1,
Upper transmission circuit and upper receiving circuit, the slave communication interface circuit include the lower bit port of connection and from control chips
The next power circuit of MCU2, the next transmission circuit and the next receiving circuit, which is characterized in that the upper bit port includes two
Two-wire interface unit IO1-1, IO1-2, are parallel with polarity free capacitor C1 between the two-wire interface unit IO1-1 and two-wire interface unit IO1-2, and two
Bit port IO1-1 is connect respectively with upper power circuit, upper transmission circuit and upper receiving circuit, two-wire interface unit IO1-2 mono-
End ground connection；The lower bit port includes two two-wire interface unit IO2-1, IO2-2, the two-wire interface unit IO2-1 and two-wire interface unit
The cathode output end ground connection VSS of polar protective circuit D3, the polar protective circuit D3, polarity protection are parallel between IO2-2
The cathode output end of circuit D3 connects the next power circuit, the next transmission circuit and the next receiving circuit respectively, it is described on
Bit port is arbitrarily connect with lower bit port by two conducting wires.
2. a kind of direct current carrier communication interface circuit of achievable power delivery according to claim 1, which is characterized in that
The upper power circuit includes 12V power supplys, resistance R9, R10, R11 and triode Q3, Q4, Q7, the 12V power supplys connection
In resistance R9 and the emitter of triode Q4, the other end of the resistance R9 is connected to base stage and three poles of the triode Q4 again
The emitter of pipe Q3, the base stage of the triode Q3 connect the collector and resistance R10 of the triode Q4, the collection of triode Q3
The collector of the other end connection triode Q7 of electrode connection the two-wire interface unit IO1-1, the resistance R10, described three
The emitter ground connection of pole pipe Q7, the communication that the base stage of triode Q7 passes through the resistance R11 connections Master control chip MCU1
Transmit mouth RX1 and upper transmission circuit.
3. a kind of direct current carrier communication interface circuit of achievable power delivery according to claim 1 or 2, feature exist
Include resistance R1, R2, R12 and triode Q2, Q6, the two-wire interface unit IO1-1 and the electricity in, the upper transmission circuit
Hinder R1, resistance R2 connections, resistance R1, resistance R2 the other end connect the collector of the triode Q2, base stage, triode respectively
The emitter ground connection of Q2, the resistance R1 are also connected with the collector of the triode Q6, and the base stage of triode Q6 passes through resistance R12
Connect the communications mouth TX1 of the Master control chip MCU1 and upper power circuit, the emitter ground connection of triode Q6.
4. a kind of direct current carrier communication interface circuit of achievable power delivery according to claim 1, which is characterized in that
The upper receiving circuit include 5V power supplys, zener diode D1, diode D2, triode Q1, Q5 and resistance R3, R4, R5,
R6, R7, R8, the anode of two-wire interface unit IO1-1 connections the zener diode D1, zener diode D1 be connected with diode D2,
The other end of resistance R4 and resistance R3, resistance R3 connect the base stage of the triode Q1, anode, the resistance R4 of the diode D2
The other end and the emitter of triode Q1 be grounded, the collector of triode Q1 by the resistance R5 connections 5V power supplys,
The collector of the triode Q1 also by resistance R6 connection resistance R7 and triode Q5, the other end of the resistance R7 with it is described
The emitter of triode Q5 is directly grounded, and the collector of triode Q5 connects the communications mouth of the Master control chip MCU1
The collector of RX1, the triode Q5 also pass through the anode of the resistance R8 connections 5V power supplys.
5. a kind of direct current carrier communication interface circuit of achievable power delivery according to claim 1, which is characterized in that
The bottom power circuit includes diode D4, integrated regulator U1, electrolytic capacitor C3, C4 and regulated power supply VCC, described
The anode of diode D4 connects the cathode output end of the polar protective circuit D3, and the cathode of diode D4 is integrated with the voltage stabilizing
1 input terminal of circuit U is connected with the anode of electrolytic capacitor C3, and the cathode ground connection VSS of electrolytic capacitor C3 forms input filter circuit,
The ground terminal ground connection of the integrated regulator U1, the anode with electrolytic capacitor C4 of output terminal connection regulated power supply VCC are described
The cathode ground connection of electrolytic capacitor C4.
6. a kind of direct current carrier communication interface circuit of achievable power delivery according to claim 1, which is characterized in that
It is described bottom transmission circuit include regulated power supply VCC, backward dioded D6, polarity free capacitor C2, C5, triode Q10, Q11 with
And resistance R13, R21, R22, R23, the polar protective circuit D3 positive polarity output terminals connection capacitance C2, resistance R13 and three poles
The collector of pipe Q10, the emitter of the capacitance C2, the resistance R13 other ends and the triode Q10 are grounded VSS, and described three
The collector of access triode Q11, the collector of the triode Q11 also pass through after the base stage of pole pipe Q10 is connected with resistance R21
Resistance R22 is grounded to form drop-down, and the emitter of triode Q11 accesses regulated power supply VCC, three pole by backward dioded D6
Access is passed from the communications mouth TX2 of control chip MCU2 in resistance R23 and communication after the base stage of pipe Q11 is connected with resistance R23
Polarity free capacitor C5, the polarity free capacitor C5 drop-downs ground connection VSS are connected between outlet TX2.
7. a kind of direct current carrier communication interface circuit of achievable power delivery according to claim 1, which is characterized in that
The bottom receiving circuit include regulated power supply VCC, zener diode D5, triode Q8, Q9 and resistance R13, R14, R15,
R16, R17, R18, R19, R20, the polar protective circuit D3 cathode output ends are connected with zener diode D5 cathodes, voltage stabilizing two
Pole pipe D5 anodes pass through the base stage of resistance R14 connecting triodes Q8, the emitter ground connection of triode Q8, the base of the triode Q8
Ground connection forms drop-down after pole is connect with the resistance R15, and the collector of triode Q8 passes through resistance R17 series voltage stabilizing power supplys VCC
Pull-up is formed, the collector of the triode Q8 is also connect with resistance R16, R18, and the R16 other ends are grounded VSS, resistance R18
The other end is connect with triode Q9 base stages, the emitter ground connection VSS of the triode Q9, the collector and resistance of triode Q9
Access regulated power supply VCC forms pull-up after R19 series connection, the collector of the triode Q9 be accessed after connect with resistance R20 from
Control the communications mouth RX2 of chip MCU2.
8. a kind of direct current carrier communication interface circuit of achievable power delivery according to claim 1, which is characterized in that
The positive pole connection 5V power supplys of the Master control chip MCU1, power cathode ground connection；The power supply from control chip MCU2
Anode connects regulated power supply VCC, power cathode ground connection VSS.
9. a kind of direct current carrier communication interface circuit of achievable power delivery according to claim 1, which is characterized in that
The polar protective circuit D3 is rectifier bridge, and described two two-wire interface unit IO2-1, IO2-2 connect the defeated of the rectifier bridge respectively
Enter end.
10. a kind of direct current carrier communication interface circuit of achievable power delivery according to claim 5, feature exist
In the model LM7805 circuit of three-terminal voltage-stabilizing integrated of the integrated regulator U1.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109639316A (en) * | 2018-12-26 | 2019-04-16 | 西安朗山电子科技有限公司 | A kind of network communicating system of nonpolarity energy and information transmitting multiplexing |
| WO2024007646A1 (en) * | 2022-07-07 | 2024-01-11 | 深圳市帝拓电子有限公司 | Direct-current power line carrier type communication circuit and method |
-
2017
- 2017-10-31 CN CN201721419322.5U patent/CN207475583U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109639316A (en) * | 2018-12-26 | 2019-04-16 | 西安朗山电子科技有限公司 | A kind of network communicating system of nonpolarity energy and information transmitting multiplexing |
| WO2024007646A1 (en) * | 2022-07-07 | 2024-01-11 | 深圳市帝拓电子有限公司 | Direct-current power line carrier type communication circuit and method |
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