CN206461639U - A kind of CAN transceiver modules - Google Patents
A kind of CAN transceiver modules Download PDFInfo
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- CN206461639U CN206461639U CN201720119393.7U CN201720119393U CN206461639U CN 206461639 U CN206461639 U CN 206461639U CN 201720119393 U CN201720119393 U CN 201720119393U CN 206461639 U CN206461639 U CN 206461639U
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- 238000004891 communication Methods 0.000 abstract description 14
- 230000008901 benefit Effects 0.000 description 3
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Abstract
The utility model discloses a kind of CAN transceiver modules, including CAN transceiver；It is connected with CAN transceiver, receives extraneous data signal and dormant control signal, the digital isolated location of electrical isolation and control CAN transceiver dormancy or wake-up is carried out to CAN transceiver；It is connected with CAN transceiver and digital isolated location, for the insulating power supply powered for CAN transceiver and digital isolated location；It is connected with insulating power supply, the power control unit of the dormant control signal control insulating power supply dormancy or wake-up for receiving the external world.Electrical isolation is realized, common mode disturbances are reduced；When CAN transceiver and insulating power supply in a dormant state when, CAN transceiver can receive the data at CAN end, but data can not be sent, insulating power supply is reduced for the electric energy that CAN transceiver is provided, the loss of insulating power supply itself is also reduced, when CAN transceiver modules are waken up, and CAN transceiver and insulating power supply recover normal work, the power consumption of CAN transceiver modules is reduced, and does not interfere with the proper communication of bus.
Description
Technical field
The utility model is related to CAN communication field, more particularly to a kind of CAN transceiver modules.
Background technology
In industries such as Industry Control, automobile and BMS, CAN is widely used.Because the industry that CAN is applied is wide
General, its application environment also varies, and bus communication is highly prone to the interference of external environment.In order to ensure bus reliable communication,
Isolated can transceiver is widely used.Isolated can transceiver has electrical isolation effect, while can effectively reduce
The influence that common mode disturbances are caused to bus, substantially increases the reliability of bus communication.
But, in some industries such as BMS, it usually needs the CAN transceiver of low-power consumption, in these industries, generally make
It is powered with battery, the requirement to power consumption is very high, if using general isolated can transceiver, even if without data
Transmitting-receiving, transceiver is also at normal operating conditions, can there is larger electrostatic induced current, has greatly accelerated the consumption of the energy content of battery；
If the isolated transceiver that need not send data is completely cut through power supply, or transceiver is forbidden to work, although can effectively subtract
Few loss, but the data of bus can not be also received simultaneously, bus communication can be impacted.
Therefore, the reliability of CAN communication how had both been can guarantee that, and power consumption can be reduced, has been those skilled in the art's mesh
The preceding technical issues that need to address.
Utility model content
The purpose of this utility model is to provide a kind of CAN transceiver modules, both can guarantee that the reliability of CAN communication, again
Power consumption can be reduced.
In order to solve the above technical problems, the utility model provides following technical scheme：
A kind of CAN transceiver modules, including CAN transceiver；It is connected with the CAN transceiver, receives extraneous data signal
And dormant control signal, electrical isolation and the control CAN transceiver dormancy or wake-up are carried out to the CAN transceiver
Digital isolated location；It is connected with the CAN transceiver and the digital isolated location, for for the CAN transceiver and described
The insulating power supply that digital isolated location is powered；It is connected with the insulating power supply, the dormant control signal for receiving the external world
Control the power control unit of the insulating power supply dormancy or wake-up.
Preferably, the digital isolated location is optical coupling isolation circuit, magnetic every circuit or held every circuit.
Preferably, the insulating power supply is isolation DC-DC units, and the power control unit is that DC-DC controls circuit；
Wherein, the input of the isolation DC-DC units and extraneous power supply and the digital isolated location is defeated
Enter the power supply of the power interface connection at end, the output end of the isolation DC-DC units and the output end of the digital isolated location
Interface and the connection of the power interface of the CAN transceiver.
Preferably, the isolation DC-DC units include the first pin and second pin, and first pin is input power
Positive pin, the second pin is input power ground pin.
Preferably, the digital isolated location includes the 3rd pin, the 4th pin and the 5th pin, wherein, the described 3rd
Pin is data signal input pin, and the 4th pin is data signal output pin, and the 5th pin is described to receive
The dormancy controlling switch of dormant control signal.
Preferably, the input of the DC-DC controls circuit and dormancy controlling switch connection, the DC-DC controls
The output end of circuit and the connection of the control end of the isolation DC-DC units.
Preferably, the CAN transceiver includes the 6th pin, the 7th pin and the 8th pin, wherein, the 6th pin is
CANH output pins, the 7th pin is CANL output pins, and the 8th pin is insulation output power supply ground pin.
Compared with prior art, above-mentioned technical proposal has advantages below：
A kind of CAN transceiver modules that the utility model embodiment is provided, including CAN transceiver；Connect with CAN transceiver
Connect, receive extraneous data signal and dormant control signal, electrical isolation and control CAN transmitting-receivings are carried out to CAN transceiver
Device dormancy or the digital isolated location of wake-up；It is connected with CAN transceiver and digital isolated location, for for CAN transceiver sum
The insulating power supply that word isolated location is powered；It is connected with insulating power supply, the dormant control signal control isolation electricity for receiving the external world
Source dormancy or the power control unit of wake-up.Due to provided with digital isolated location and insulating power supply, realizing electrical isolation, reduce
Common mode disturbances；Because digital isolated location can control CAN transceiver dormancy or wake-up according to extraneous dormant control signal,
Meanwhile, power control unit can also control insulating power supply dormancy or wake-up according to the dormant control signal, when CAN transceiver modules
When in a dormant state, i.e., in a dormant state, now, it is total that CAN transceiver can receive CAN for CAN transceiver and insulating power supply
The data of line end, but data can not be sent, insulating power supply also greatly reduces for the electric energy that CAN transceiver is provided, and isolates simultaneously
The loss of power supply itself also greatly reduces, so as to reduce the power consumption of CAN transceiver modules.Only when CAN transceiver needs to send
During data, CAN transceiver modules are just waken up, and CAN transceiver and insulating power supply recover normal work, so as to reduce CAN transmitting-receivings
The power consumption of module, simultaneously because CAN transceiver can still receive the data at CAN end in the dormant state, is not interfered with
The proper communication of bus.In addition, the CAN transceiver modules integrate above-mentioned functions, there is the high small volume of integrated level, it is real
Miniaturization and the modularization of electronic product are showed.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are these
Some embodiments of utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawings can be obtained according to these accompanying drawings.
The CAN transceiver module structural representations that Fig. 1 is provided by a kind of embodiment of the utility model；
The CAN transceiver module schematic devices that Fig. 2 is provided by a kind of embodiment of the utility model；
Fig. 3 is the bottom view of the CAN transceiver module devices shown in Fig. 2.
Embodiment
Core of the present utility model is to provide a kind of CAN transceiver modules, both can guarantee that the reliability of CAN communication, again
Power consumption can be reduced.
In order that above-mentioned purpose of the present utility model, feature and advantage can become apparent it is understandable, it is right below in conjunction with the accompanying drawings
Embodiment of the present utility model is described in detail.
Detail is elaborated in the following description to fully understand the utility model.But the utility model can
It is different from other manner described here with a variety of and implements, those skilled in the art can be without prejudice to the utility model intension
In the case of do similar popularization.Therefore the utility model is not limited by following public embodiment.
It refer to Fig. 1, the CAN transceiver module structural representations that Fig. 1 is provided by a kind of embodiment of the utility model
Figure.
A kind of embodiment of the present utility model provides a kind of CAN transceiver modules, including CAN transceiver 11, also
Including：It is connected with CAN transceiver 11, receives extraneous data signal and dormant control signal, electricity is carried out to CAN transceiver 11
Air bound from and control the dormancy of CAN transceiver 11 or wake-up digital isolated location 12；Isolate single with CAN transceiver 11 and numeral
Member 12 is connected, for the insulating power supply 13 powered for CAN transceiver 11 and digital isolated location 12；It is connected with insulating power supply 13,
For the power control unit 14 for the dormant control signal control dormancy of the insulating power supply 13 or wake-up for receiving the external world.
In the present embodiment, due to provided with digital isolated location and insulating power supply, realizing electrical isolation, reduce altogether
Mould is disturbed；Because digital isolated location can control CAN transceiver dormancy or wake-up according to extraneous dormant control signal, together
When, power control unit can also control insulating power supply dormancy or wake-up according to the dormant control signal, at CAN transceiver modules
When resting state, i.e., in a dormant state, now, CAN transceiver can receive CAN for CAN transceiver and insulating power supply
The data at end, but data can not be sent, insulating power supply also greatly reduces for the electric energy that CAN transceiver is provided, while isolating electricity
Loss from body also greatly reduces, so as to reduce the power consumption of CAN transceiver modules.Only when CAN transceiver needs to send number
According to when, CAN transceiver modules are just waken up, and CAN transceiver and insulating power supply recover normal work, so as to reduce CAN transmitting-receiving moulds
The power consumption of block, simultaneously because CAN transceiver can still receive the data at CAN end in the dormant state, is not interfered with total
The proper communication of line.In addition, the CAN transceiver modules integrate above-mentioned functions, there is the high small volume of integrated level, realize
The miniaturization of electronic product and modularization.
It should be noted that in the present embodiment, digital isolated location and CAN transceiver can be integrated into without every
From the isolated can transceiver of power supply, to have the insulating power supply of controlling switch to realize above-mentioned technical scheme with one.
In a kind of embodiment of the present utility model, digital isolated location is preferably optical coupling isolation circuit, magnetic every circuit
Or hold every circuit.CAN transceiver is the non-isolated transceiver that dormancy awakening function can be achieved.Further, insulating power supply be every
From DC-DC units, power control unit is that DC-DC controls circuit；Wherein, the input of isolation DC-DC units is powered with extraneous
The power interface connection of the input of power supply and digital isolated location, output end and the numeral isolation for isolating DC-DC units is single
The power interface of the output end of member and the power interface connection of CAN transceiver.
Such as when digital isolated location is optical coupling isolation circuit, the input of isolation DC-DC units is light-coupled isolation unit
Luminescent device power, and isolate the output ends of DC-DC units and powered for the light-sensitive device of light-coupled isolation unit, isolate simultaneously
The output end of DC-DC units is powered for CAN transceiver.
It refer to Fig. 2 and Fig. 3, the CAN transceiver module devices that Fig. 2 is provided by a kind of embodiment of the utility model
Schematic diagram；Fig. 3 is the bottom view of the CAN transceiver module devices shown in Fig. 2.
In a kind of embodiment of the present utility model, the specific device of CAN transceiver modules is illustrated.Such as Fig. 2
Shown, in the present embodiment, preferably integrated CAN transceiver modules are the CAN transceiver module devices of a nearly cuboid of profile, i.e.,
As shown in figure 3, the upper and lower surface of the CAN transceiver module devices is into pentagon, the side of short side it is defeated to characterize power supply
Enter.
In the present embodiment, isolation DC-DC units include the first pin 1 and second pin 2, and the first pin 1 is input
The positive pin VCC of power supply, second pin 2 is input power ground pin GND.Digital isolated location includes the 3rd pin 3, the 4th pin
4 and the 5th pin 4, wherein, the 3rd pin 3 is data signal input pin TXD, and the 4th pin 4 is data signal output pin
RXD, the 5th pin 5 is the dormancy controlling switch STB for receiving dormant control signal.The input of DC-DC control circuits and dormancy
Controlling switch is connected, the output end of DC-DC control circuits and the control end connection of isolation DC-DC units.CAN transceiver includes the
Six pins 8, the 7th pin 9 and the 8th pin 10, wherein, the 6th pin 8 is CANH output pins, and the 7th pin 9 is that CANL is defeated
Go out pin, the 8th pin 10 is insulation output power supply ground pin CGND.
Wherein, the data signal of extraneous input enters digital isolated location, digital isolated location feedback via the 3rd pin
Data signal exported via the 4th pin to extraneous corresponding device.6th pin and the output that the 7th pin is CAN transceiver
Pin.
When CAN transceiver modules in a dormant state when, its internal CAN transceiver, insulating power supply still have certain operation
Function, simply overall power consumption can drop very low, now, CAN transceiver can not send data, but can receive CANH,
The data of CANL bus ends.When CAN transceiver receives the data at CAN end, RXD can returned data, now extraneous control
Side (such as MCU) processed is received after returned data, and CAN transceiver modules can be controlled to enter normal operating conditions, is carrying out data just
Often transmitting-receiving.So, even if CAN transceiver modules enter resting state, the proper communication of bus is not interfered with yet.Need explanation
It is that the CAN transceiver modules are not complete forbidden energy, therefore the effect of the CAN transceiver modules in present embodiment is in reduction work(
While consumption, the proper communication of CAN can be ensured.
In summary, CAN transceiver modules provided by the utility model, due to provided with digital isolated location and isolation electricity
Source, realizes electrical isolation, reduces common mode disturbances；Because digital isolated location can be according to extraneous dormant control signal control
CAN transceiver dormancy or wake-up processed, meanwhile, power control unit can also control insulating power supply to stop according to the dormant control signal
Sleep or wake up, when CAN transceiver modules in a dormant state when, i.e., CAN transceiver and insulating power supply in a dormant state, now,
CAN transceiver can receive the data at CAN end, but can not send data, the electricity that insulating power supply provides for CAN transceiver
Can also it greatly reduce, while the loss of insulating power supply itself also greatly reduces, so as to reduce the power consumption of CAN transceiver modules.Only
Have when CAN transceiver needs to send data, CAN transceiver modules are just waken up, CAN transceiver and insulating power supply recover normal work
Make, so as to reduce the power consumption of CAN transceiver modules, simultaneously because in the dormant state CAN transceiver can still to receive CAN total
The data of line end, do not interfere with the proper communication of bus.In addition, the CAN transceiver modules integrate above-mentioned functions, with integrated
The advantage of high small volume is spent, miniaturization and the modularization of electronic product is realized.
A kind of CAN transceiver modules provided by the utility model are described in detail above.Tool used herein
Body example is set forth to principle of the present utility model and embodiment, and the explanation of above example is only intended to help and understood
The utility model and its core concept.It should be pointed out that for those skilled in the art, not departing from this reality
On the premise of with new principle, some improvement and modification can also be carried out to the utility model, these are improved and modification is also fallen into
In the utility model scope of the claims.
Claims (7)
1. a kind of CAN transceiver modules, including CAN transceiver, it is characterised in that also include：It is connected, connects with the CAN transceiver
Extraneous data signal and dormant control signal is received, electrical isolation is carried out to the CAN transceiver and controls the CAN to receive
Send out the digital isolated location of device dormancy or wake-up；It is connected with the CAN transceiver and the digital isolated location, for be described
The insulating power supply that CAN transceiver and the digital isolated location are powered；It is connected with the insulating power supply, the institute for receiving the external world
State the power control unit that dormant control signal controls the insulating power supply dormancy or wake-up.
2. CAN transceiver modules according to claim 1, it is characterised in that the digital isolated location is light-coupled isolation electricity
Road, magnetic are every circuit or appearance every circuit.
3. CAN transceiver modules according to claim 1 or 2, it is characterised in that the insulating power supply is mono- for isolation DC-DC
Member, the power control unit is that DC-DC controls circuit；
Wherein, the input of the isolation DC-DC units and extraneous power supply and the input of the digital isolated location
Power interface connection, the power interface of the output end of the isolation DC-DC units and the output end of the digital isolated location
And the power interface connection of the CAN transceiver.
4. CAN transceiver modules according to claim 3, it is characterised in that the isolation DC-DC units include the first pin
And second pin, first pin is the positive pin of input power, and the second pin is input power ground pin.
5. CAN transceiver modules according to claim 4, it is characterised in that the digital isolated location include the 3rd pin,
4th pin and the 5th pin, wherein, the 3rd pin is data signal input pin, and the 4th pin is data signal
Output pin, the 5th pin is the dormancy controlling switch for receiving the dormant control signal.
6. CAN transceiver modules according to claim 5, it is characterised in that the input of the DC-DC controls circuit and institute
State the connection of dormancy controlling switch, the output end of the DC-DC controls circuit and the control end connection of the isolation DC-DC units.
7. CAN transceiver modules according to claim 6, it is characterised in that the CAN transceiver includes the 6th pin, the
Seven pins and the 8th pin, wherein, the 6th pin is CANH output pins, and the 7th pin is CANL output pins, the 8th pin
For insulation output power supply ground pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720119393.7U CN206461639U (en) | 2017-02-08 | 2017-02-08 | A kind of CAN transceiver modules |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720119393.7U CN206461639U (en) | 2017-02-08 | 2017-02-08 | A kind of CAN transceiver modules |
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| Publication Number | Publication Date |
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| CN206461639U true CN206461639U (en) | 2017-09-01 |
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| CN201720119393.7U Withdrawn - After Issue CN206461639U (en) | 2017-02-08 | 2017-02-08 | A kind of CAN transceiver modules |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106713097A (en) * | 2017-02-08 | 2017-05-24 | 广州致远电子股份有限公司 | CAN transmitting-receiving module |
-
2017
- 2017-02-08 CN CN201720119393.7U patent/CN206461639U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106713097A (en) * | 2017-02-08 | 2017-05-24 | 广州致远电子股份有限公司 | CAN transmitting-receiving module |
| CN106713097B (en) * | 2017-02-08 | 2022-07-29 | 广州致远电子股份有限公司 | CAN transceiver module |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
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| CP03 | Change of name, title or address |
Address after: Room 517, 1023 Gaopu Road, Tianhe Software Park, Tianhe District, Guangzhou City, Guangdong Province Patentee after: GUANGZHOU ZHIYUAN ELECTRONICS Co.,Ltd. Address before: 510000 Room 204, 2nd Floor, 1035 Gaopu Road, Tianhe District, Guangzhou City, Guangdong Province Patentee before: GUANGZHOU ZHIYUAN ELECTRONICS Co.,Ltd. |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170901 Effective date of abandoning: 20220729 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20170901 Effective date of abandoning: 20220729 |