CN106774067A - A kind of short circuit monitoring system and method for link of powering - Google Patents
A kind of short circuit monitoring system and method for link of powering Download PDFInfo
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- CN106774067A CN106774067A CN201611183790.7A CN201611183790A CN106774067A CN 106774067 A CN106774067 A CN 106774067A CN 201611183790 A CN201611183790 A CN 201611183790A CN 106774067 A CN106774067 A CN 106774067A
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- power supply
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/048—Monitoring; Safety
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention provides a kind of short circuit monitoring system and method for link of powering, the system includes at least one power supply link, monitoring chip and the one-to-one at least one monitoring link of at least one power supply link of board；The supply voltage of difference power supply link is different；Monitoring chip is connected with each monitoring link respectively, and the corresponding power supply link of each monitoring link is in series；Switch is included in each monitoring link；Monitoring chip is used to be performed both by for each monitoring link：Closed by the switch for controlling the monitoring link to include, so that the monitoring link is in channel status；According to the electric current by the monitoring link, when the corresponding power supply link short circuit of the monitoring link is judged, abnormality processing is performed.Due to can be by monitoring chip, the short-circuit conditions to each link of powering of board be monitored automatically, therefore this programme can improve the simplification that short circuit monitoring is carried out to power supply link.
Description
Technical field
The present invention relates to field of computer technology, more particularly to a kind of short circuit monitoring system and method for link of powering.
Background technology
With the development of science and technology the consumer electronics industry, such as PC, mobile phone, the hair of server electronic product industry
Exhibition is advanced by leaps and bounds.Wherein it is possible to by the power supply link of electronic product inside board, be powered to each electronic product.But,
Because human factor damages the reasons such as board in structure design interference, assembling process, it is likely to result in power supply link and short circuit occurs
Situation, so that being damaged after electricity on electronic product.
At present, power supply link can be detected by universal meter, to determine that the power supply link whether there is short-circuit feelings
Condition.
But, due to the usual more than one of power supply link of board, therefore, it is necessary to work when being detected to different power supply links
Make personnel's connected power supply link current to universal meter artificially to be changed.As can be seen that the short circuit prison of existing power supply link
Prosecutor formula is more bothered.
The content of the invention
The invention provides a kind of short circuit monitoring system and method for link of powering, it is possible to increase power supply link is carried out short
The simplification of road monitoring.
In order to achieve the above object, the present invention is achieved through the following technical solutions：
On the one hand, the invention provides a kind of short circuit monitoring system of link of powering, including：
At least one power supply link of board, monitoring chip, at least one monitoring link；
The supply voltage of difference power supply link is different；
At least one power supply link is corresponded with described at least one monitoring link；
Monitoring link described with each is connected the monitoring chip respectively, and each monitoring link is right with it
The power supply link answered is in series；
Switch is included in each monitoring link；
The monitoring chip, for being held for each first monitoring link in described at least one monitoring link
OK：Closed by the switch for controlling the first monitoring link and including, so that the first monitoring link is in channel status；
According to the electric current by the described first monitoring link, judge whether the corresponding power supply link of the first monitoring link is short-circuit, if
It is to perform abnormality processing.
Further, the monitoring chip and at least one monitoring link are integrated on the board.
Further, the monitoring chip includes at least one pin；
At least one pin is corresponded with described at least one monitoring link；
Include in each monitoring link：The first resistor that resistance is fixed, wherein, one end of the first resistor
Ground connection, the other end is connected by the corresponding pin of monitoring link where itself with the monitoring chip；
The monitoring chip, the partial pressure specifically for gathering the first resistor in the first monitoring link, wherein, it is described
Partial pressure is proportional with the electric current that link is monitored by described first；Judge whether the partial pressure is located at respective threshold set in advance
In the range of, if it is not, determining the corresponding power supply link short circuit of the first monitoring link, and perform abnormality processing.
Further, also include in each monitoring link：The first resistor included with the monitoring link is mutually gone here and there
The second resistance of connection；
Based on first resistor and second resistance that each monitoring link includes, by each monitoring chain
The electric current on road is no more than the maximum allowable pin electric current of the monitoring chip.
Further, the short circuit monitoring system of the power supply link also includes：It is integrated in the power supply module on the board；
Power supply link described with each is connected the power supply module respectively；
The power supply module, for being performed both by for each power supply link：The power supply electricity that external power source is exported
The supply voltage needed for being converted into the power supply link is pressed, and is exported to the power supply link.
Further, the short circuit monitoring system of the power supply link also includes：LED light, and/or, buzzer；
The monitoring chip, specifically for judge it is described first monitoring link it is corresponding power supply link short circuit when, control
Make the LED light shinny, and/or, control the buzzer sounding.
Further, each power supply link is connected by power switch with respective external electrical equipment；
The monitoring chip, specifically for judge it is described first monitoring link it is corresponding power supply link short circuit when, control
The first monitoring connected power switch of link is made to disconnect.
Further, it is described at least one power supply link in any power supply link supply voltage for+5V ,+3.3V ,+
One kind in 1.8V ,+1.2V.
On the other hand, carried out the invention provides a kind of short circuit monitoring system using any of the above-described described power supply link
The short circuit monitoring method of power supply link, monitoring chip is connected with least one monitoring link respectively, and each monitoring
The corresponding power supply link of link is in series, and also includes：
It is performed both by for each first monitoring link in described at least one monitoring link：By controlling described first
The switch closure that monitoring link includes, so that the first monitoring link is in channel status；
According to the electric current by the described first monitoring link, whether the corresponding power supply link of the first monitoring link is judged
Short circuit, if so, performing abnormality processing.
Further, the monitoring chip includes at least one pin, and at least one pin and described at least
Bar monitoring link is corresponded；
It is described that monitoring chip is connected with least one monitoring link respectively, including：Held for pin each described
OK：By one end ground connection of the corresponding monitoring first resistor that includes of link of the pin, the other end by the pin with it is described
Monitoring chip is connected, wherein, the resistance of the first resistor is fixed；
The electric current that the basis passes through the described first monitoring link, judges the corresponding power supply link of the first monitoring link
It is whether short-circuit, if so, abnormality processing is performed, including：The partial pressure of the first resistor in the first monitoring link is gathered, wherein,
The partial pressure is proportional with the electric current that link is monitored by described first；Judge whether the partial pressure is located at set in advance corresponding
In threshold range, if it is not, determining the corresponding power supply link short circuit of the first monitoring link, and abnormality processing is performed.
The invention provides a kind of short circuit monitoring system and method for link of powering, the system includes at least one of board
Power supply link, monitoring chip and the one-to-one at least one monitoring link of at least one power supply link；Difference power supply link
Supply voltage is different；Monitoring chip is connected with each monitoring link respectively, and the corresponding power supply link phase of each monitoring link
Series connection；Switch is included in each monitoring link；Monitoring chip is used to be performed both by for each monitoring link：Should by control
The switch closure that monitoring link includes, so that the monitoring link is in channel status；According to the electric current by the monitoring link,
Judge the monitoring link it is corresponding power supply link short circuit when, perform abnormality processing.Due to can be by monitoring chip, to plate
The short-circuit conditions of each power supply link of card are monitored automatically, therefore the present invention can be improved and carry out short-circuit prison to power supply link
The simplification of control.
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 the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
These accompanying drawings obtain other accompanying drawings.
Fig. 1 is a kind of schematic diagram of the short circuit monitoring system of power supply link that one embodiment of the invention is provided；
Fig. 2 is the schematic diagram of the short circuit monitoring system of another power supply link that one embodiment of the invention is provided；
Fig. 3 is that a kind of short circuit monitoring system using link of powering that one embodiment of the invention is provided is powered link
The flow chart of short circuit monitoring method.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments, based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained on the premise of creative work is not made, belongs to the scope of protection of the invention.
As shown in figure 1, the embodiment of the invention provides a kind of short circuit monitoring system of link of powering, can include：
At least one power supply link 101 of board, the monitoring link 103 of monitoring chip 102, at least one；
The supply voltage of difference power supply link is different；
At least one power supply link 101 is corresponded with described at least one monitoring link 103；
Monitoring link 103 described with each is connected the monitoring chip 102 respectively, and each monitoring link
103 corresponding power supply links are in series；
Switch 1031 is included in each monitoring link 103；
The monitoring chip 102, for for each first monitoring link in described at least one monitoring link 103
It is performed both by：Closed by the switch for controlling the first monitoring link and including, so that the first monitoring link is in path
State；According to the electric current by the described first monitoring link, judge whether the corresponding power supply link of the first monitoring link is short
Road, if so, performing abnormality processing.
The embodiment of the invention provides it is a kind of power link short circuit monitoring system, including board at least one power supply chain
Road, monitoring chip and the one-to-one at least one monitoring link of at least one power supply link；The power supply electricity of difference power supply link
Pressure is different；Monitoring chip is connected with each monitoring link respectively, and the corresponding power supply link of each monitoring link is in series；Respectively
Switch is included in monitoring link；Monitoring chip is used to be performed both by for each monitoring link：By controlling the monitoring chain
The switch closure that road includes, so that the monitoring link is in channel status；According to the electric current by the monitoring link, judging
Go out the monitoring link it is corresponding power supply link short circuit when, perform abnormality processing.Due to can be by monitoring chip, to the every of board
The short-circuit conditions of one power supply link are monitored automatically, therefore the embodiment of the present invention can be improved and carry out short-circuit prison to power supply link
The simplification of control.
In detail, it is in series with corresponding power supply link by by each monitoring link so that under normal circumstances, by monitoring
The electric current of link is identical with the electric current by corresponding power supply link.In this way, when link of powering has short-circuit conditions, monitoring chip
The current status for being monitored will be inconsistent with predetermined standard state.
If for example, the numerical value of the electric current for monitoring exceedes respective settings threshold value, it may be said that bright corresponding power supply link occurs short
Road；If the numerical value of the electric current for monitoring is consistent with respective settings threshold value, or is more or less the same, it may be said that bright corresponding power supply link is not deposited
In short-circuit conditions.
In detail, in an embodiment of the invention, after short circuit monitoring is completed to each power supply link, monitoring chip can be with
Switching off in each monitoring link of control, in this way, the presence of monitoring chip and each monitoring link can not influence board just
Often use.
In detail, board, i.e. pcb board, have generally included a plurality of to meet the power demands of different electrical equipments, on board
Power supply link, wherein, the supply voltage of difference power supply link is different.For example, respectively power supply link supply voltage can be respectively+
5V ,+3.3V ,+1.8V ,+1.2V etc..
Therefore, in an embodiment of the invention, refer to Fig. 2, any confession at least one power supply link 101
The supply voltage on current source road is the one kind in+5V ,+3.3V ,+1.8V ,+1.2V.
In fig. 2, power supply link short circuit monitoring system can include 4 power supply links, and from up to down from the point of view of, should
4 the supply voltage of power supply link can be respectively+5V ,+3.3V ,+1.8V ,+1.2V.
Accordingly, supply voltage is the power supply link of+5V, for being powered to+5V electrical equipments；Supply voltage for+
The power supply link of 3.3V, for being powered to+3.3V electrical equipments；In this way, analogizing.
In an embodiment of the invention, the monitoring chip 102 and at least one monitoring link 103 are integrated in
On the board.
In detail, when board is designed, monitoring chip and monitoring link can be directly designed on board.In this way,
Based on the program in machine code for pre-setting, before electricity in each electrical equipment, the short-circuit conditions of each power supply link can be carried out certainly
Dynamic monitoring；And each electrical equipment be in non-working condition when, periodically can equally monitor automatically it is each power supply link whether there is
Short-circuit conditions.
Certainly, in an embodiment of the invention, based on different practical application requests, monitoring chip and monitoring link are same
Sample can not be integrated on board.In this way, when needing to monitor the short-circuit conditions of each power supply link, it is necessary to each monitoring link is divided
It is not connected with corresponding power supply link.
In an embodiment of the invention, Fig. 2 is refer to, in order to illustrate a kind of possibility for monitoring power supply link short circuit situation
Implementation, so, the monitoring chip 102 includes at least one pin 1021；
At least one pin 1021 is corresponded with described at least one monitoring link 103；
Include in each monitoring link 103：The first resistor 1032 that resistance is fixed, wherein, first electricity
One end ground connection of resistance 1032, the other end by monitoring the corresponding pin of link where itself, with the phase of the monitoring chip 102
Even；
The monitoring chip 102, the partial pressure specifically for gathering the first resistor in the first monitoring link, wherein,
The partial pressure is proportional with the electric current that link is monitored by described first；Judge whether the partial pressure is located at set in advance corresponding
In threshold range, if it is not, determining the corresponding power supply link short circuit of the first monitoring link, and abnormality processing is performed.
In detail, for any monitoring link, it is grounded by by one end of its internal first resistor, another termination monitoring
One pin of chip, in this way, monitoring chip can gather the partial pressure of the first resistor by the pin.Due to first resistor
Resistance immobilizes, therefore the partial pressure for collecting is proportional with by the electric current of the first resistor, that is, the partial pressure for collecting with pass through
The electric current of the monitoring link is proportional.
If the corresponding power supply link of monitoring link does not exist short-circuit conditions, the partial pressure that monitoring chip is collected should be located at phase
Answer in preset threshold range, otherwise, the short circuit of power supply link can cause the total resistance in whole current path to diminish, and electric current becomes
Greatly, the maximum therefore in partial pressure typically larger than threshold range for collecting of monitoring chip.
In an embodiment of the invention, Fig. 2 is refer to, in order to illustrate a kind of possibility realization side of protection chip pin
Formula, so, also include in each monitoring link 103：The first resistor 1032 included with the monitoring link is in series
Second resistance 1033；
Based on first resistor and second resistance that each monitoring link includes, by each monitoring chain
The electric current on road is no more than the maximum allowable pin electric current of the monitoring chip 102.
In detail, for any pin of monitoring chip, when by monitor the electric current of link it is larger when, easily pin is caused
Damage.So, it may be predetermined that the maximum allowable pin electric current of monitoring chip, and by the series connection one in link is monitored the
Two resistance, the current limliting partial pressure effect based on second resistance, so as to be respectively less than maximum allowable pin by the electric current of each monitoring link
Electric current, to reach the effect of protection chip pin.
For example, the maximum allowable pin electric current of each pin of monitoring chip can be 300mA.
In an embodiment of the invention, Fig. 2 is refer to, the short circuit monitoring system of the power supply link also includes：It is integrated in
Power supply module 201 on the board；
Power supply link 101 described with each is connected the power supply module 201 respectively；
The power supply module 201, for being performed both by for each power supply link 101：External power source is exported
Supply voltage be converted into the power supply link needed for supply voltage, and export to the power supply link.
In detail, based on the above, due to that can have a plurality of power supply link on board, and the power supply of each power supply link is electric
Pressure is different, therefore power supply module can be equally integrated with board, is accordingly changed with to the supply voltage that external power source is provided.
For example, the supply voltage of external power source output can be+12V, power module, can be by its point through internal voltage conversion circuit
+ 5V ,+3.3V ,+1.8V ,+1.2V are not converted to, and are exported respectively to corresponding power supply link, supplied with to corresponding electrical equipment
Electricity.
In an embodiment of the invention, refer to Fig. 2, in order to illustrate one kind monitor power supply link short circuit when perform it is different
The possibility implementation for often processing, so, the short circuit monitoring system of the power supply link also includes：LED light 202, and/or,
Buzzer 203；
The monitoring chip 102, specifically for judge it is described first monitoring link it is corresponding power supply link short circuit when,
Control the LED light 202 shinny, and/or, control the sounding of buzzer 203.
In detail, when any power supply link short circuit is monitored, monitoring chip can trigger LED light and buzzer,
So that its work.LED light and buzzer as warning device, with respectively by the type of alarm of luminous and sounding, and
When remind staff.
In an embodiment of the invention, can be while the corresponding electrical equipment of chain road direction of powering be powered, to this
The short-circuit conditions of power supply link are monitored.
In this way, in an embodiment of the invention, refer to Fig. 2, each power supply link 101 is opened by power supply
Pass is connected with respective external electrical equipment；
The monitoring chip 102, specifically for judge it is described first monitoring link it is corresponding power supply link short circuit when,
The first monitoring connected power switch of link is controlled to disconnect.
In detail, in power supply process, the power switch between power supply link and corresponding electrical equipment is in and closes power supply link
Conjunction state.Monitoring chip can control the power switch being connected with the power supply link when any power supply link short circuit is monitored
Disconnect, to protect electrical equipment, the electrical equipment powered caused by link short circuit is avoided in time situations such as burn out.
In sum, during board use, whether each power supply link that can monitor board by monitoring chip is deposited
In short-circuit conditions, burnt such that it is able to be prevented effectively from the board powered caused by link short circuit in board, it is on fire the problems such as.Cause
This, the embodiment of the present invention can improve the security that board is used, and be provided simultaneously with designing simple, the practical and convenient, cost of operation
Low the characteristics of.
As shown in figure 3, the embodiment of the invention provides a kind of short circuit monitoring using any of the above-described described power supply link
System is powered the short circuit monitoring method of link, may comprise steps of：
Step 301：By monitoring chip respectively with least one monitoring link be connected, and each it is described monitoring link with
Its corresponding power supply link is in series.
Step 302：It is performed both by for each first monitoring link in described at least one monitoring link：By control
The switch closure that the first monitoring link includes, so that the first monitoring link is in channel status；
Step 303：According to the electric current by the described first monitoring link, the corresponding power supply of the first monitoring link is judged
Whether link is short-circuit, if so, performing abnormality processing, otherwise, terminates current process.
In an embodiment of the invention, the monitoring chip includes at least one pin, and at least one pin
Corresponded with described at least one monitoring link；
It is described that monitoring chip is connected with least one monitoring link respectively, including：Held for pin each described
OK：By one end ground connection of the corresponding monitoring first resistor that includes of link of the pin, the other end by the pin with it is described
Monitoring chip is connected, wherein, the resistance of the first resistor is fixed；
The electric current that the basis passes through the described first monitoring link, judges the corresponding power supply link of the first monitoring link
It is whether short-circuit, if so, abnormality processing is performed, including：The partial pressure of the first resistor in the first monitoring link is gathered, wherein,
The partial pressure is proportional with the electric current that link is monitored by described first；Judge whether the partial pressure is located at set in advance corresponding
In threshold range, if it is not, determining the corresponding power supply link short circuit of the first monitoring link, and abnormality processing is performed.
In detail, can be by the partial pressure of first resistor in monitoring chip acquisition monitoring link, with according to dividing for collecting
The relativity of pressure value and respective settings threshold range, to determine that the power supply link that monitoring link is connected whether there is short-circuit feelings
Condition.Under normal circumstances, if the partial pressure value for collecting is not located in the range of respective threshold, it may be said that bright power supply link short circuit.
For example, for the power supply link that supply voltage is+5V, under normal circumstances, monitoring chain corresponding with the power supply link
The partial pressure of first resistor in road, should be located at (0,3V] threshold range in.If the partial pressure value that monitoring chip is collected is more than 3V,
The power supply link short circuit can be illustrated.
In sum, each embodiment of the invention at least has the advantages that：
1st, in the embodiment of the present invention, there is provided it is a kind of power link short circuit monitoring system, including board at least one
Power supply link, monitoring chip and the one-to-one at least one monitoring link of at least one power supply link；Difference power supply link
Supply voltage is different；Monitoring chip is connected with each monitoring link respectively, and the corresponding power supply link phase of each monitoring link
Series connection；Switch is included in each monitoring link；Monitoring chip is used to be performed both by for each monitoring link：Should by control
The switch closure that monitoring link includes, so that the monitoring link is in channel status；According to the electric current by the monitoring link,
Judge the monitoring link it is corresponding power supply link short circuit when, perform abnormality processing.Due to can be by monitoring chip, to plate
The short-circuit conditions of each power supply link of card are monitored automatically, therefore the embodiment of the present invention can improve and power supply link is carried out
The simplification of short circuit monitoring.
2nd, in the embodiment of the present invention, during board use, each power supply chain of board can be monitored by monitoring chip
Road whether there is short-circuit conditions, be burnt such that it is able to be prevented effectively from the board powered caused by link short circuit in board, on fire etc.
Problem.Therefore, the embodiment of the present invention can improve the security that board is used, and be provided simultaneously with designing simple, operation practicality side
Just, the characteristics of low cost.
It should be noted that herein, such as first and second etc relational terms are used merely to an entity
Or operation makes a distinction with another entity or operation, and not necessarily require or imply these entities or exist between operating
Any this actual relation or order.And, term " including ", "comprising" or its any other variant be intended to it is non-
It is exclusive to include, so that process, method, article or equipment including a series of key elements not only include those key elements,
But also other key elements including being not expressly set out, or also include by this process, method, article or equipment are solid
Some key elements.In the absence of more restrictions, the key element limited by sentence " including ", does not arrange
Except also there is other identical factor in the process including the key element, method, article or equipment.
One of ordinary skill in the art will appreciate that：Realizing all or part of step of above method embodiment can pass through
Programmed instruction related hardware is completed, and foregoing program can be stored in the storage medium of embodied on computer readable, the program
Upon execution, the step of including above method embodiment is performed；And foregoing storage medium includes：ROM, RAM, magnetic disc or light
Disk etc. is various can be with the medium of store program codes.
It is last it should be noted that：Presently preferred embodiments of the present invention is the foregoing is only, skill of the invention is merely to illustrate
Art scheme, is not intended to limit the scope of the present invention.All any modifications made within the spirit and principles in the present invention,
Equivalent, improvement etc., are all contained in protection scope of the present invention.
Claims (10)
1. it is a kind of power link short circuit monitoring system, it is characterised in that including：
At least one power supply link of board, monitoring chip, at least one monitoring link；
The supply voltage of difference power supply link is different；
At least one power supply link is corresponded with described at least one monitoring link；
Monitoring link described with each is connected the monitoring chip respectively, and each monitoring link is corresponding
Power supply link is in series；
Switch is included in each monitoring link；
The monitoring chip, for being performed both by for each first monitoring link in described at least one monitoring link：It is logical
The switch closure for controlling the first monitoring link to include is crossed, so that the first monitoring link is in channel status；According to
By the electric current of the described first monitoring link, judge whether the corresponding power supply link of the first monitoring link is short-circuit, if so, holding
Row abnormality processing.
2. it is according to claim 1 power supply link short circuit monitoring system, it is characterised in that
The monitoring chip and at least one monitoring link are integrated on the board.
3. it is according to claim 1 power supply link short circuit monitoring system, it is characterised in that
The monitoring chip includes at least one pin；
At least one pin is corresponded with described at least one monitoring link；
Include in each monitoring link：The first resistor that resistance is fixed, wherein, a termination of the first resistor
Ground, the other end is connected by the corresponding pin of monitoring link where itself with the monitoring chip；
The monitoring chip, the partial pressure specifically for gathering the first resistor in the first monitoring link, wherein, the partial pressure
It is proportional with the electric current that link is monitored by described first；Judge whether the partial pressure is located at respective threshold scope set in advance
It is interior, if it is not, determining the corresponding power supply link short circuit of the first monitoring link, and perform abnormality processing.
4. it is according to claim 3 power supply link short circuit monitoring system, it is characterised in that
Also include in each monitoring link：The second resistance that the first resistor included with the monitoring link is in series；
Based on each monitoring the link first resistor and second resistance that include, by each monitoring link
Electric current is no more than the maximum allowable pin electric current of the monitoring chip.
5. it is according to claim 1 power supply link short circuit monitoring system, it is characterised in that
Also include：It is integrated in the power supply module on the board；
Power supply link described with each is connected the power supply module respectively；
The power supply module, for being performed both by for each power supply link：The supply voltage that external power source is exported turns
Supply voltage needed for turning to the power supply link, and export to the power supply link.
6. it is according to claim 1 power supply link short circuit monitoring system, it is characterised in that
Also include：LED light, and/or, buzzer；
The monitoring chip, specifically for judge it is described first monitoring link it is corresponding power supply link short circuit when, control institute
State LED light shinny, and/or, control the buzzer sounding.
7. it is according to claim 1 power supply link short circuit monitoring system, it is characterised in that
Each the power supply link is connected by power switch with respective external electrical equipment；
The monitoring chip, specifically for judge it is described first monitoring link it is corresponding power supply link short circuit when, control institute
The connected power switch of the first monitoring link is stated to disconnect.
8. according to the short circuit monitoring system of any described power supply link in claim 1 to 7, it is characterised in that
During the supply voltage of any power supply link at least one power supply link is+5V ,+3.3V ,+1.8V ,+1.2V
It is a kind of.
9. a kind of short circuit monitoring system of power supply link using as described in any in claim 1 to 8 is powered link
Short circuit monitoring method, it is characterised in that monitoring chip is connected with least one monitoring link respectively, and each monitoring
The corresponding power supply link of link is in series, and also includes：
It is performed both by for each first monitoring link in described at least one monitoring link：By controlling first monitoring
The switch closure that link includes, so that the first monitoring link is in channel status；
According to the electric current by the described first monitoring link, judge whether the corresponding power supply link of the first monitoring link is short
Road, if so, performing abnormality processing.
10. method according to claim 9, it is characterised in that
The monitoring chip includes at least one pin, and at least one pin is with described at least one monitoring link one by one
Correspondence；
It is described that monitoring chip is connected with least one monitoring link respectively, including：It is performed both by for pin each described：Will
One end ground connection of the corresponding monitoring first resistor that includes of link of the pin, the other end by the pin with the monitoring core
Piece is connected, wherein, the resistance of the first resistor is fixed；
Whether the electric current that the basis passes through the described first monitoring link, judge the corresponding power supply link of the first monitoring link
Short circuit, if so, abnormality processing is performed, including：The partial pressure of the first resistor in the first monitoring link is gathered, wherein, it is described
Partial pressure is proportional with the electric current that link is monitored by described first；Judge whether the partial pressure is located at respective threshold set in advance
In the range of, if it is not, determining the corresponding power supply link short circuit of the first monitoring link, and perform abnormality processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611183790.7A CN106774067B (en) | 2016-12-20 | 2016-12-20 | A kind of short circuit monitoring system and method for link of powering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611183790.7A CN106774067B (en) | 2016-12-20 | 2016-12-20 | A kind of short circuit monitoring system and method for link of powering |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114301162A (en) * | 2022-01-05 | 2022-04-08 | 京东方科技集团股份有限公司 | Power supply system and power supply method |
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| JP2010251519A (en) * | 2009-04-15 | 2010-11-04 | Denso Corp | Electronic device |
| CN103472347A (en) * | 2012-06-08 | 2013-12-25 | 富泰华工业（深圳）有限公司 | Auxiliary testing circuit, chip with auxiliary testing circuit and circuit board with auxiliary testing circuit |
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