CN104702315B - A kind of carrier communication circuit and electronic equipment - Google Patents
A kind of carrier communication circuit and electronic equipment Download PDFInfo
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- CN104702315B CN104702315B CN201510103826.5A CN201510103826A CN104702315B CN 104702315 B CN104702315 B CN 104702315B CN 201510103826 A CN201510103826 A CN 201510103826A CN 104702315 B CN104702315 B CN 104702315B
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Abstract
The invention discloses a kind of carrier communication circuit and electronic equipment, the carrier communication circuit includes signal sending circuit, signal receiving circuit and power circuit, the signal sending circuit receives the signal that controller sends, and be loaded into the power circuit, the power circuit has the power supply terminal for connecting other carrier communication circuits, the signal receiving circuit receives the carrier signal in power circuit, and carrier signal coupling output to controller is processed.Carrier communication circuit of the invention, by by signal loading to DC power supply circuit, realize and communicated by direct current supply line between carrier communication circuit, only need to be using two power connector end, and then the communication for having between the carrier communication circuit electronic product respectively can be realized, greatly reducing current electronic product needs the problem of a large amount of pogpin interfaces by bus communication etc., and then advantageously reduces the cost of electronic product and reduce the volume of electronic product.
Description
Technical field
It is to be related to a kind of carrier communication circuit and electronic equipment specifically the invention belongs to telecommunication circuit technical field.
Background technology
Traditional power carrier communication refers to using existing power line, by carrier system by analog signal or data signal
Carry out the technology of high-speed transfer.Its maximum feature is need not again to set up network, as long as live wire, can just carry out data biography；
It is mainly used in long-distance meter-reading system, remote monitor system for road lamp and industrial intelligent etc..Existing power line carrier, PLC
Using, it is necessary to respectively each transceiver terminal set carrier communication module, for parsing and sending carrier signal, but consumer
In small-sized electronic product particularly mobile electronic product, the application of carrier communication principle is fresh to be related to less, current consumer small electrical
It is main between sub- product that communication is realized using pogpin, because the manufacturing cost of pogpin is higher, while such as using bus
The mode of communication, causes that the volume of consumer electronics product can be increased when pogpin quantity is more.
Therefore, it is necessary to propose a kind of low cost and the method that is easily achieved is come in reducing consumer electronics product
The carrier communication circuit of the quantity of pogpin.
The content of the invention
The present invention needs, using a large amount of pogpin pins, to be added to solve existing consumer small-sized electronic product communication
A kind of technical problem of this and volume, it is proposed that carrier communication circuit, is especially suitable for the communication in consumer electronics product, can be with
Reduce the quantity that its communication uses pogpin.
In order to solve the above-mentioned technical problem, the present invention is achieved using following technical scheme：
A kind of carrier communication circuit, including signal sending circuit, signal receiving circuit and power circuit, the signal
Transtation mission circuit receives the signal that controller sends, and is loaded into the power circuit, and the power circuit has for connecting
The power supply terminal of other carrier communication circuits, the signal receiving circuit receives the carrier signal in power circuit, and will
The carrier signal coupling output to controller is processed.
Further, the signal sending circuit includes NPN triode, base stage and the controller of the NPN triode
Signal output part is connected, and the colelctor electrode of the NPN triode connects the power supply input circuit, the NPN by second resistance
The emitter stage connection ground terminal of triode.
Further, the Schottky diode for preventing power supply anti-inserted is provided with the power circuit.
Further, the signal receiving circuit includes coupled capacitor, the signal input part of the coupled capacitor and institute
Power circuit connection is stated, the signal output part of the coupled capacitor is connected with the signal input part of controller.
Further, the signal receiving circuit also includes the biasing for providing bias voltage for the coupled capacitor
Circuit, the signal output part of the coupled capacitor is connected with the biasing circuit.
Preferably, the biasing circuit includes the first biasing resistor and the second biasing resistor, the signal of the coupled capacitor
Output end connects dc source by the first biasing resistor, and the signal output part of the coupled capacitor is connected by the second biasing resistor
Earth terminal.
Or, the signal sending circuit includes NMOS tube, the grid of the NMOS tube and the signal output part of controller
Connection, the drain electrode of the NMOS tube connects the power supply input circuit, the source electrode connection ground of the NMOS tube by second resistance
End.
Based on any one above-mentioned carrier communication circuit, the present invention proposes a kind of electronic equipment simultaneously, comprising above appointing
Carrier communication circuit described in one.
Compared with prior art, advantages and positive effects of the present invention are：Carrier communication circuit of the invention, by that will believe
Number it is loaded into DC power supply circuit, realizes and communicated by direct current supply line between carrier communication circuit, only needs to use
Two power connector end, and then the communication for having between the carrier communication circuit electronic product respectively, pole can be realized
Reducing current electronic product greatly needs the problem of a large amount of pogpin interfaces by bus communication etc., and then advantageously reduces electronics
The cost of product and the volume of reduction electronic product.
After the detailed description of embodiment of the present invention is read in conjunction with the figure, the other features and advantages of the invention will become more
Plus it is clear.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of functional-block diagram of carrier communication circuit proposed by the invention；
Functional-block diagram when Fig. 2 is the realization communication of carrier communication circuit proposed by the invention；
Fig. 3 is a kind of circuit theory diagrams of carrier communication circuit proposed by the invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Embodiment one, the present embodiment proposes a kind of carrier communication circuit, as shown in figure 1, including signal sending circuit, letter
Number receiving circuit and power circuit, the signal sending circuit receive the signal that controller sends, and are loaded into the power supply
In circuit, the power circuit has the power supply terminal for connecting other carrier communication circuits, and the signal receives electricity
Road receives the carrier signal in power circuit, and carrier signal coupling output to controller is processed.The present embodiment
Carrier communication circuit in, during signal sending circuit is by the signal loading that sends controller to DC power supply circuit, when this
When DC power supply circuit connects other carrier communication circuits, realize between two carrier communication circuits using transmitting DC
Power Line Communication, if two or more electronic products are respectively provided with this carrier communication circuit, and then can realize electronic product it
Between communicated by direct current supply line, only current electronics need to can be greatly reduced using two power connector ends
Product needs the problem of a large amount of pogpin interfaces by bus communication etc., and then advantageously reduces the cost of electronic product and subtract
The volume of small electronic product.
As shown in Fig. 2 Principle of Communication block diagram between two carrier communication circuits in the present embodiment, including carrier communication electricity
Road A and carrier communication circuit B, carrier communication circuit A and carrier communication circuit B are respectively with power supply terminal pogpin1, two
The power supply terminal pogpin1 of person needs just be communicated between the two in connection, for convenience of explanation, carrier wave will be claimed below
Telecommunication circuit A is A ends, and carrier communication circuit B is B ends, and the signal sending circuit at A ends receives the controller being connected with it and sends
Signal, and by the power circuit of the signal loading to A ends, because power circuit and the B ends power circuit at A ends pass through power supply
Binding post pogpin1 is connected, therefore, the carrier signal of A ends transmission, and B ends can be received in the power circuit at B ends
Signal receiving circuit processes the controller that the carrier signal is coupled and exported to B ends, and vice versa, and B ends can also be used as hair
Sending end, by the signal loading at end where it to power circuit, A ends receive the signal as receiving terminal, can be seen by Fig. 2
Go out, any one end can also equally receive its own signal for sending, such as, the signal receiving circuit at A ends can equally be received
End where to its own（Namely A ends）The signal for sending, therefore, the controller that A ends are connected can by receive its own
The signal for sending is filtered out, and B ends are also adopted by same treatment, be will not be described here, it is necessary to illustrate, although in this implementation
Only illustrate with communicating pair（Side a and b）Carrier communication principle, carrier communication circuit of the invention is not limited to
The carrier communication of above-mentioned two side, can be tripartite and it is multi-party between carrier communication.
As a preferred embodiment, as shown in figure 3, a kind of circuit theory diagrams of having illustrated out, for convenience of explanation, this
Embodiment is still illustrated with communicating pair side a and b, wherein, the signal sending circuit at A ends includes NPN triode Q1, described
The base stage of NPN triode Q1 is connected with the signal output part CTRL1 of side controller where it, the current collection of the NPN triode Q1
Pole connects the power supply input circuit at A ends, the emitter stage connection ground terminal of the NPN triode Q1 by resistance R2.The signal hair at B ends
Power transmission road includes the signal output part CTRL2 of NPN triode Q2, the base stage of the NPN triode Q2 and side controller where it
Connection, the colelctor electrode of the NPN triode Q2 connects the power supply input circuit at B ends by resistance R7, the NPN triode Q2's
Emitter stage connects ground terminal, and in the present embodiment, power circuit can be used for receiving the direct current that rectification circuit is sended over, and also may be used
When being connected with other carrier communication circuits, to receive the direct current of other carrier communication circuits transmission, such as the present embodiment
In, the power circuit at A ends passes through for dc source VCC2_IN, the A end that reception comes from rectification circuit output with B ends
After pogpin1 connections, the power circuit that electric current wherein leads up to B ends is exported from its DC power output end VCC2_OUT, separately
The outer colelctor electrode for being loaded into NPN triode Q2 all the way, for NPN triode Q2 provides operating voltage.
As a preferred embodiment, the pole of Schottky two for preventing power supply anti-inserted is provided with the power circuit
Pipe, such as D1 in D2 the and B ends in A ends is used to prevent power supply reversed, plays the poles of NPN tri- in protection signal transtation mission circuit
The effect of pipe.
As shown in figure 3, the signal receiving circuit in the present embodiment includes the C2 at the C1 and A ends at coupled capacitor such as B ends, it is described
The signal input part of coupled capacitor is connected with the power circuit, the signal output part of the coupled capacitor and the signal of controller
Input is connected.
In order to provide biased operating voltage for coupled capacitor, signal receiving circuit is also included for being the coupling electricity
Hold the biasing circuit that bias voltage is provided, the signal output part of coupled capacitor is connected with biasing circuit.As shown in figure 3, in this reality
Apply in example, in A ends, the biasing circuit includes the first biasing resistor R3 and the second biasing resistor R4, in B ends, biased electrical
Resistance is respectively R9 and R10, and by taking B ends as an example, the signal output part of the coupled capacitor C1 connects straight by the first biasing resistor R9
Stream power supply, the signal output part of coupled capacitor C1 connects ground terminal by the second biasing resistor R10.
The operation principle of this carrier communication circuit is：When side a and b is connected by pogpin1 and pogpin2, first
Being connected with the A ends of charge power supply VCC2_IN can realize charging B ends.After charge power supply voltage stabilization, at NPN triode Q1
In cut-off state, the voltage U1=VCC2_OUT-VDZ of pogpin1（Wherein VDZ is the pressure drop of Schottky diode D2）.
When the CTRL1 ports of A side controllers connection send a high level, NPN triode Q1 is in the conduction state,
The voltage U2=of pogin1（VCC2_OUT-VDZ）*R2/（R1+R2）；The voltage change of pogpin1 by coupled capacitor C1,
C2, by the variable quantity △ U=of the voltage（U1-U2）Export INT1, INT2 end of controller connection.If A ends send control signal
Can be received by side a and b simultaneously, A ends can be judged that INT1 ends are received from the signaled invalidating signal in end by software, and
The signal that the INT2 ends at B ends receive is effective.9th resistance R9, the tenth resistance R10 provide direct current biasing for the variable quantity of voltage, U=
VCC1*R10/（R9+R10）.Control of the transmitting terminal to receiving terminal is realized using charge power supply line, is reduced needed for controlling to connect
pogpin。
Similarly, when the CTRL2 ports of B side controllers connection send a high level, NPN triode Q2 is on shape
State, the voltage U2 ' of pogin1=（VCC2_OUT-VDZ）*R7/（R1+R7）；The voltage change of pogpin1 passes through coupled capacitor
C1, C2, by the variable quantity △ U=of the voltage（U1-U2’）Export INT1, INT2 end of controller connection.Because control signal
For receiving terminal sends, judge that the signal that INT1 ends receive is effective by software, the invalidating signal that INT2 ends receive.R3, R4 are electricity
The variable quantity of pressure provides direct current biasing, U '=VCC1*R4/（R3+R4）.Realize receiving terminal to transmitting terminal using charge power supply line
Control, the pogpin needed for reducing control connection.
It should be noted that the signal sending circuit of the present embodiment is not limited to be realized using NPN triode, can also adopt
The NMOS tube driven with voltage is realized, when use NMOS tube is that the signal sending circuit includes NMOS tube, the NMOS tube
Grid is connected with the signal output part of controller, and the drain electrode of the NMOS tube connects the power input electricity by second resistance
Road, the source electrode connection ground terminal of the NMOS tube.
Embodiment two, based on any one carrier communication circuit in embodiment one, the present embodiment proposes a kind of using upper
The electronic product of carrier communication circuit is stated, be may refer to shown in Fig. 1-3, carrier communication circuit B is set in electronic product, at this
Carrier communication circuit A is set in the charger of electronic product, and the direct current carrier realized between electronic product and its charger is led to
Letter.By taking bluetooth earphone as an example, bluetooth earphone can be used as mobile wireless headset, by the charging circuit in bluetooth earphone
Middle setting carrier communication circuit B, the controller that carrier communication circuit B is connected can be the process chip of bluetooth earphone, in indigo plant
Carrier communication circuit A is set in the charger of tooth earphone, and the controller that carrier communication circuit A is connected can be the place of charger
Reason chip, after bluetooth earphone is connected with charger by pogpin1, the power circuit of carrier communication circuit A is used to receive next
From the dc source VCC2_IN exported in rectification circuit, electric current wherein lead up to the power circuit of carrier communication circuit B from its
DC power output end VCC2_OUT is exported, and is charging bluetooth earphone, while by signal receiving circuit reception power circuit
The signal of loading, or will be exported in signal loading to power circuit, the communication of bluetooth earphone and charger is realized, if charging
It is stored with if audio in device, audio signal is sent into bluetooth earphone broadcasting by charging electric wire, it is achieved thereby that bluetooth
Earphone as audio amplifier function.
Certainly, described above is not limitation of the present invention, and the present invention is also not limited to the example above, this technology neck
Change, remodeling, addition or replacement that the those of ordinary skill in domain is made in essential scope of the invention, should also belong to this hair
Bright protection domain.
Claims (5)
1. a kind of carrier communication circuit, it is characterised in that：Including signal sending circuit, signal receiving circuit and power circuit,
The signal sending circuit receives the signal that controller sends, and is loaded into the power circuit, and the power circuit has
Power supply terminal for connecting other carrier communication circuits, the signal receiving circuit receives the carrier wave letter in power circuit
Number, and carrier signal coupling output to controller is processed, the signal sending circuit includes NPN triode, institute
State the base stage of NPN triode to be connected with the signal output part of controller, the colelctor electrode of the NPN triode is connected by second resistance
Power supply input circuit is connect, the emitter stage of the NPN triode connects ground terminal, and the power supply terminal is pogpin1 terminals, ground
End is also associated with pogpin2 terminals, and the pogpin1 terminals and pogpin2 terminals are respectively used to have same circuit with other
The pogpin1 terminals and pogpin2 terminals of the carrier communication circuit of structure connect one to one, the second resistance and the electricity
Be also associated between the input circuit of source one just connecing or reversal connection Schottky diode.
2. carrier communication circuit according to claim 1, it is characterised in that：The signal receiving circuit includes coupling electricity
Hold, the signal input part of the coupled capacitor is connected with the power circuit, signal output part and the control of the coupled capacitor
The signal input part connection of device.
3. carrier communication circuit according to claim 2, it is characterised in that：The signal receiving circuit is also included for being
The coupled capacitor provides the biasing circuit of bias voltage, and the signal output part of the coupled capacitor connects with the biasing circuit
Connect.
4. carrier communication circuit according to claim 3, it is characterised in that：The biasing circuit includes the first biasing resistor
With the second biasing resistor, the signal output part of the coupled capacitor is by the first biasing resistor connection dc source, the coupling
The signal output part of electric capacity connects ground terminal by the second biasing resistor.
5. a kind of electronic equipment, it is characterised in that：Including the carrier communication circuit as described in claim any one of 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510103826.5A CN104702315B (en) | 2015-03-10 | 2015-03-10 | A kind of carrier communication circuit and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510103826.5A CN104702315B (en) | 2015-03-10 | 2015-03-10 | A kind of carrier communication circuit and electronic equipment |
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| Publication Number | Publication Date |
|---|---|
| CN104702315A CN104702315A (en) | 2015-06-10 |
| CN104702315B true CN104702315B (en) | 2017-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510103826.5A Active CN104702315B (en) | 2015-03-10 | 2015-03-10 | A kind of carrier communication circuit and electronic equipment |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108964706B (en) * | 2018-06-27 | 2022-03-11 | 广州视源电子科技股份有限公司 | Power line signal transmission method and device and electric transmission equipment |
| CN109510267A (en) * | 2018-11-30 | 2019-03-22 | 歌尔股份有限公司 | The charging method of wireless headset, charging box, wireless headset charging system and wireless headset |
| CN111601218B (en) * | 2020-02-10 | 2021-11-23 | 珠海市杰理科技股份有限公司 | Audio playing switching method, Bluetooth loudspeaker box and Bluetooth audio playing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2828730Y (en) * | 2004-11-24 | 2006-10-18 | 北京铱钵隆芯科技有限责任公司 | Direct-current carrier communication interface for electronic detonator |
| US8228924B2 (en) * | 2005-05-26 | 2012-07-24 | Sony Corporation | AC PLC to DC PLC transceiver |
| CN101359933B (en) * | 2008-09-25 | 2012-07-04 | 蒋富强 | Dc line carrier communication device |
| CN201839283U (en) * | 2010-09-20 | 2011-05-18 | 广州视声电子科技有限公司 | Direct-current carrier communication circuit |
| CN204442372U (en) * | 2015-03-10 | 2015-07-01 | 青岛歌尔声学科技有限公司 | A kind of carrier communication circuit and electronic equipment |
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