CN204836686U - Sequencing luminescent system and open -circuit detecting system - Google Patents
Sequencing luminescent system and open -circuit detecting system Download PDFInfo
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- CN204836686U CN204836686U CN201520558334.0U CN201520558334U CN204836686U CN 204836686 U CN204836686 U CN 204836686U CN 201520558334 U CN201520558334 U CN 201520558334U CN 204836686 U CN204836686 U CN 204836686U
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Abstract
The utility model relates to a sequencing luminescent system and open -circuit detecting system. The sequencing luminescent system includes two at least integrated circuit, and every integrated circuit includes control input and sequence output, be coupled to two at least integrated circuit's an integrated circuit's the control unit, arrive an integrated circuit's sequence output coupling the middle communication signal of two at least integrated circuit's the 2nd integrated circuit's control input, contain the diagnostic circuit in every integrated circuit, detect the open -circuit condition and produce the circuit signal that opens a way. Open -circuit detecting system includes two at least integrated circuit, and every integrated circuit includes control input and sequence output, be coupled to two at least integrated circuit's an integrated circuit's the control unit, arrive an integrated circuit's sequence output coupling the middle communication signal of two at least integrated circuit's the 2nd integrated circuit's control input, contain the diagnostic circuit in every integrated circuit, detect the open -circuit condition and produce the circuit signal that opens a way.
Description
Technical field
Disclosed in the utility model, embodiment relates generally to electroporation, and more specifically, relates to circuit detection equipment, the Trouble Report of its integrated multiple equipment coupled together with daisy-chain arrangement.
Background technology
In a lot of light application, wish the ordering system with use light-emitting diode (LED), wherein the combination of integrated circuit (IC) is often arranged with daisy-chain arrangement or serial and is coupled together, and is connected to the input of IC subsequently to connect specific LED load from the signal exported of IC.But such layout does not provide the detection of reachability problem and mechanism connectivity problem being delivered to control unit.Because each LED load is a part for Integral luminous system, so any LED open-circuited load causes system degradation.In order to avoid the system degradation caused by open-circuited load situation, all LED in described system must be turned off.Therefore, having the LED sequence driver being incorporated to open-circuit detection and reporting system will be wish.
Utility model content
According to an aspect of the present utility model, provide a kind of sequence luminescent system, comprising: at least two integrated circuits, wherein each integrated circuit comprises control inputs and sequence output; Control unit, the first integrated circuit at least two integrated circuits described in being coupled to; Intermediate communication signal, exports the described control inputs of the second integrated circuit at least two integrated circuits described in being coupled to by the described sequence of described first integrated circuit; Diagnostic circuit, is included in each integrated circuit, and wherein said diagnostic circuit detects open-circuit situation and produces open-circuit signal.
In one embodiment, each integrated circuit comprises diagnosis output.
In one embodiment, described diagnosis output is electrically coupled to described control unit.
In one embodiment, when described diagnostic circuit detects open-circuit situation, described open-circuit signal is sent to described control unit by described diagnosis output.
In one embodiment, when open-circuit situation is detected, described open-circuit signal propagates into described control unit by described diagnostic circuit and intermediate communication signal.
In one embodiment, described sequence luminescent system also comprises the LED load of each be electrically connected in described integrated circuit, and wherein when open-circuit situation is detected, described LED load is turned off.
According to another aspect of the present utility model, provide a kind of open-circuit detection system, comprising: at least two integrated circuits, wherein each integrated circuit comprises control inputs and sequence output; Control unit, the first integrated circuit at least two integrated circuits described in being coupled to; Intermediate communication signal, exports the described control inputs of the second integrated circuit at least two integrated circuits described in being coupled to by the described sequence of described first integrated circuit; Diagnostic circuit, is included in each integrated circuit, and wherein said diagnostic circuit detects open-circuit situation and produces open-circuit signal.
In one embodiment, each integrated circuit comprises diagnosis output.
In one embodiment, described diagnosis output is electrically coupled to described control unit.
In one embodiment, when described diagnostic circuit detects open-circuit situation, described open-circuit signal is sent to described control unit by described diagnosis output.
In one embodiment, when open-circuit situation is detected, described open-circuit signal propagates into described control unit by described diagnostic circuit and intermediate communication signal.
Accompanying drawing explanation
Fig. 1 is exemplified with the block diagram of the ordering system according to embodiment of the present utility model;
Fig. 2 is summarily exemplified with the embodiment of the part of the ordering system of the Fig. 1 according to embodiment of the present utility model;
Fig. 3 is summarily exemplified with the embodiment of the ordering system according to embodiment of the present utility model.
In order to illustrative simple and clear and clear, the element in figure need not proportionally be drawn, and the identical Reference numeral in different figure generally represents identical element.In addition, simple and clear in order to what illustrate, omit the explanation to known step, element and circuit and details.Such as, display and control (function) circuit is omitted, but how understanding is realized this circuit by persons skilled in the art.When being used in the state about signal, the active state referring to signal " asserted " in term, and " negative " refers to the inactive state of signal.The actual voltage value of signal or logic state (such as " 1 " or " 0 ") can depend on and use positive logic or negative logic.Therefore, " assert " can or high voltage or high logic, or low-voltage or low logic, it depends on and uses positive logic or negative logic, and negative can or low-voltage or low state, or high voltage or high logic, it depends on and uses positive logic or negative logic.It will be appreciated by those skilled in the art that positive logic or negative logic all can be used.Be used to term " first " " second " " 3rd " in embodiment etc. in claims distinguish similar element, instead of must be used for the time that describes, space, with rank or sequence otherwise.Should be understood that the term used like this can be replaced mutually under appropriate condition, and embodiment described herein can with the sequence running beyond described herein or illustrative.
Embodiment
To this application claims invention people be the title being filed on July 30th, 2014 of FrankJ.Kolanko, SamJ.B.W.Vermeir, BrianBlackburn, WimVandeMaele and BenjaminM.Rice is the priority of the non-provisional United States application serial 62/031060 of " SEQUENCINGLIGHTINGSYSTEM ", it is incorporated to completely herein by reference.
Fig. 1 is exemplified with the block diagram of ordering system 10.Ordering system 10 can have multiple integrated circuit (IC) 11a, 11b, 11c and 11d.Each IC can have input 17, sequence exports 15 and diagnosis output 16.IC can couple together according to daisy chain, and wherein the sequence of an IC exports the input being electrically connected to the 2nd IC.Such as, the sequence of an IC11a exports the input that can be electrically connected to the 2nd IC11b, and the sequence of the 2nd IC11b exports the input that can be electrically connected to the 3rd IC11c, etc.Each IC can also have load and export 14, and it can be electrically connected to the load 13 that can be controlled by input 17.Such as, in ordering system 10, load 13 can comprise LED load.LED load can comprise one or more LED.
Ordering system 10 can also have control unit 12.Control unit 12 can be coupled to the first integrated circuit of multiple integrated circuit, such as, and element 11a.The diagnosis of each single IC11a, 11b, 11c exports 16 and can be electrically connected to control unit 12.Diagnosis output 16 can by open-circuit situation report to control unit 12.System illustrated in Fig. 1, exemplified with the ordering system 10 with three (3) individual IC, However, it should be understood that described system can comprise the IC of any amount.
Fig. 2 is exemplified with the part of the ordering system 10 of Fig. 1.Each IC can have input 17, sequence exports 15 and diagnosis output 16.IC can couple together according to daisy chain, and wherein the sequence of an IC exports the input being electrically connected to the 2nd IC.Such as, the sequence of an IC11a exports the input that can be electrically connected to the 2nd IC11b, and the sequence of the 2nd IC11b exports the input (as shown in Figure 1) that can be electrically connected to the 3rd IC11c, etc.Each IC can also have load and export 14, and it can be electrically connected to load 13.Such as, in ordering system 10, load 13 can comprise LED load.LED load can comprise one or more LED.For the sake of simplicity, for driving the functional circuit of load output 14 not shown.
Ordering system 10 can also have control unit 12.Control unit 12 can be microprocessor and can be used as voltage source.Control unit 12 can be coupled to the first integrated circuit 11a of multiple IC.Control unit 12 can provide On/Off to control.Diagnosis output 16 can be electrically connected to control unit 12.Diagnosis output 16 can by open-circuit situation report to control unit 12.The embodiment of Fig. 1 has the diagnosis that can be electrically connected to control unit 12 exemplified with each IC11a, 11b, 11c and exports 16.System illustrated in Fig. 2, exemplified with the ordering system 10 with two (2) individual IC, However, it should be understood that described system can comprise the IC of any amount.
Each IC11a, 11b can have diagnostic circuit.If the intermediate communication signal of coupling two IC has broken, diagnostic circuit can detect open-circuit situation.If there is open-circuited load, diagnostic circuit also can detect open-circuit situation.For the sake of simplicity, not shown for detecting the diagnostic circuit that whether there is open-circuited load.But, according at least one embodiment, can be similar substantially with the diagnostic circuit described hereinafter and realize according to mode identical substantially for detecting the diagnostic circuit that whether there is open-circuited load.Diagnostic circuit can comprise pull-up assembly 18, open-circuit detection components 21, first drop-down assembly 19 and reference voltage Vol.First drop-down assembly 19 can be current source, and open-circuit detection components 21 can be comparator, and pull-up assembly 18 can be resistor.According to alternative embodiment, pull-up assembly 18 can be current source.Last circuit in described chain can have independent pull-up assembly (not shown).Such as, during routine running (that is, open-circuit situation does not occur), the load 13 being connected to each IC is connected.The pull-up assembly 18 of the 2nd IC11b provides high voltage to an IC11a.At the high voltage also corresponding high voltage at node 15 of node 17.Compared with reference voltage Vol by open-circuit detection components 21 at the voltage of node 15.If there is principal-employment XOR do not have difference between the voltage and reference voltage Vol of node 15, the output of open-circuit detection components 21 can not show open-circuit situation.Such as, if the intermediate communication signal of coupling the one IC11a and the 2nd IC11b has broken, the drop-down assembly 19 of the one IC11a will become advantage, because the pull-up assembly 18 of the 2nd IC11b no longer affects the voltage of the node 15 at an IC11a, the voltage of the node 15 at an IC11a is thus caused to drop to lower value.Open-circuit detection components 21 is now by the negative variance on the voltage that detects between the node 15 of an IC11a and reference voltage Vol.Difference on this voltage level will be read as open-circuit situation.Then open-circuit signal exports 16 by the diagnosis of an IC11a and is sent to control unit 12.Once control unit 12 receives open-circuit signal, whole system can be turned off by the control signal sent from control unit 12, thus turn off all loads 13, and such as, if load 13 is LED load, so all LED will be turned off.
If there is open-circuited load, diagnostic circuit or independent open-circuited load testing circuit (OLDC) (not shown) also can detect open-circuit situation, described open-circuited load can by load export 14 and the connection be interrupted of load 13 cause.Load 13 can be electrically connected to OLDC.OLDC can measure the electric current by load 13.For the sake of simplicity, OLDC is not shown, but according at least one embodiment, OLDC can be similar substantially with above-described diagnostic circuit and realize according to mode identical substantially.Such as, voltage source 22 can play the function similar to voltage source V s, and load 13 can play the function similar to pull-up assembly 18, and the additional circuit similar to above-described diagnostic circuit in IC11a with 11b can be implemented.Therefore, such as, if exist by the 2nd IC11b load export 14 with load 13 disconnect caused open-circuited load, open-circuited load signal can export 16 or alternatively by the diagnosis of the 2nd IC11b, exports (not shown) be sent to control unit 12 by the diagnosis of independent open-circuited load.Once control unit 12 receives open-circuited load signal, whole system can be turned off by the control signal sent from control unit 12, thus turn off all loads 13, and such as, if load 13 is LED load, so all LED will be turned off.
Fig. 3 is summarily exemplified with the embodiment of ordering system 10.Each IC can have input 17 and sequence exports 15.IC can couple together according to daisy chain, and wherein the output of an IC is electrically connected to the input of the 2nd IC.Such as, the output of an IC11a can be electrically connected to the input of the 2nd IC11b, and the output of the 2nd IC11b can be electrically connected to the input of the 3rd IC11c, etc.Each IC can also have load and export 14, and it can be electrically connected to load 13.Such as, in ordering system 10, load 13 can comprise LED load.LED load can comprise one or more LED.
Ordering system 10 can also have control unit 12.Control unit 12 can be microprocessor and can be used as voltage source.Control unit 12 can be coupled to the first integrated circuit 11a of multiple IC.Control unit 12 can provide On/Off to control.The system of Fig. 3, exemplified with the ordering system 10 with three (3) individual IC, However, it should be understood that described system can comprise the IC of any amount.
Each IC11a, 11b and 11c can have diagnostic circuit.When the intermediate communication signal of coupling two IC has broken, diagnostic circuit can detect open-circuit situation.If there is open-circuited load, diagnostic circuit also can detect open-circuit situation.Diagnostic circuit can comprise pull-up assembly 18, the drop-down assembly 23 of open-circuit detection components the 21, first drop-down assembly 19, second, breakdown switch 24 and reference voltage Vol.First drop-down assembly 19 can be current source, and open-circuit detection components 21 can be comparator, and pull-up assembly 18 can be resistor.According to the present embodiment of Fig. 3, pull-up assembly 18 is illustrated as current source.Last circuit in described chain can have independent pull-up assembly (not shown).Such as, during routine running (that is, open-circuit situation does not occur), the load 13 being connected to each IC turns off.The pull-up assembly 18 of the one IC11a, the 2nd IC11b and the 3rd IC11c is provided in the high voltage of node 17.Also the high voltage at node 15 is corresponded at the high voltage of node 17.Compared with reference voltage Vol by open-circuit detection components 21 at the voltage of node 15.If there is principal-employment XOR do not have difference between the voltage and reference voltage Vol of node 15, the output of open-circuit detection components 21 can not show open-circuit situation, thus allow breakdown switch 24 open.Such as, if the intermediate communication signal of coupling the 2nd IC11b and the 3rd IC11c has broken, the drop-down assembly 19 of the 2nd IC11b will become advantage, because the pull-up assembly 18 of the 3rd IC11c no longer affects the voltage of the node 15 at the 2nd IC11b, the voltage of the node 15 at the 2nd IC11b is thus caused to drop to the value being less than reference voltage Vol.Open-circuit detection components 21 is now by the negative variance on the voltage that detects between the node 15 of the 2nd IC11b and reference voltage Vol.Difference on this voltage level will be read as open-circuit situation.This open-circuit situation causes the LED load of the 2nd IC11b to be turned off.Then open-circuit signal is sent to the breakdown switch 24 of the 2nd IC11b.When the breakdown switch 24 of the 2nd IC11b receives open-circuit signal, breakdown switch 24 cuts out, and thus connects the second drop-down assembly 23 of the 2nd IC11b.Because the second drop-down assembly 23 is more much bigger than pull-up assembly 18, so at the voltage of the node 17 of the 2nd IC11b be lowered at the voltage of the node 15 of an IC11a value being less than Vol.Therefore, because lower at the voltage ratio reference voltage Vol of the node 15 of an IC11a, so open-circuit detection components 21 is now by the negative variance on the voltage that detects between the node 15 of an IC11a and reference voltage Vol.Difference on this voltage level will be read as open-circuit situation.Open-circuit situation causes the LED load of an IC11a to be turned off.Then open-circuit signal is sent to the breakdown switch 24 of an IC11a.When the breakdown switch 24 of an IC11a receives open-circuit signal, breakdown switch 24 cuts out, and thus connects the second drop-down assembly 23 of an IC11a.Because the second drop-down assembly 23 is more much bigger than pull-up assembly 18, be lowered at the voltage of the node 17 of an IC11a.Be reported to control unit 12 at the voltage of the node 17 of an IC11a by diagnosis report input 27, be wherein read as open-circuit situation in the low-voltage of node 17.
If there is open-circuited load, diagnostic circuit or OLDC (not shown) also can detect open-circuit situation, described open-circuited load can by load export 14 and the connection be interrupted of load 13 cause.Load 13 can be electrically connected to OLDC.OLDC can measure the electric current by load 13, and can be electrically connected to breakdown switch 24.For the sake of simplicity, OLDC is not shown, but according at least one embodiment, OLDC can be similar substantially with above-described diagnostic circuit and realize according to mode identical substantially.Such as, voltage source 22 can play the function similar to voltage source V reg, and load 13 can play the function similar to pull-up assembly 18, and IC11a, 11b can be implemented with the additional circuit similar to above-described diagnostic circuit in 11c.Therefore, such as, if exist by the 2nd IC11b load export 14 with load 13 disconnect caused open-circuited load, open-circuited load signal can be sent to the breakdown switch 24 of the 2nd IC11b.When the breakdown switch 24 of the 2nd IC11b receives open-circuited load signal, breakdown switch 24 cuts out, and thus connects the second drop-down assembly 23 of the 2nd IC11b.Because the second drop-down assembly 23 is more much bigger than pull-up assembly 18, at the voltage of the node 17 of the 2nd IC11b be lowered at the voltage of the node 15 of an IC11a value being less than Vol.Therefore, because lower at the voltage ratio reference voltage Vol of the node 15 of an IC11a, so open-circuit detection components 21 is now by the negative variance on the voltage that detects between the node 15 of an IC11a and reference voltage Vol.Difference on this voltage level will be read as open-circuit situation.Then open-circuit signal is sent to the breakdown switch 24 of an IC11a.When the breakdown switch 24 of an IC11a receives open-circuit signal, breakdown switch 24 cuts out, and thus connects the second drop-down assembly 23 of an IC11a.Because the second drop-down assembly 23 is more much bigger than pull-up assembly 18, be lowered at the voltage of the node 17 of an IC11a.Be reported to control unit 12 at the voltage of the node 17 of an IC11a by diagnosis report input 27, be wherein read as open-circuit situation in the low-voltage of node 17.
Once control unit 12 receives open-circuit signal, fault message can be used for other parts of vehicle to utilize.Ordering system 10 can be reset by using the clear switch 25 being connected to Vcc.Clear switch 25 can be connected to control unit 12 by independent pin, or can be connected to another system equipment, and described system equipment is connected to Vcc.
In view of above-mentioned all the elements, clearly, a kind of novel system is disclosed.Comprise together with other features in one embodiment be the diagnosis report circuit detecting open-circuit situation.Described system is guaranteed if open-circuit situation is detected, and so all loads are turned off.
According to another aspect of the present utility model, provide a kind of method forming open-circuit detection system, comprising: provide at least two integrated circuits, wherein each integrated circuit comprises control inputs and sequence output; The control unit of the first integrated circuit at least two integrated circuits described in being coupled to is provided; Intermediate communication signal is provided, the described sequence of described first integrated circuit is exported the described control inputs of the second integrated circuit at least two integrated circuits described in being coupled to; Providing package is contained in the diagnostic circuit in each integrated circuit, and wherein said diagnostic circuit detects open-circuit situation and produces open-circuit signal.
In one embodiment, each integrated circuit comprises diagnosis output.
In one embodiment, described diagnosis output is electrically coupled to described control unit.
In one embodiment, when described diagnostic circuit detects open-circuit situation, described open-circuit signal is sent to described control unit by described diagnosis output.
In one embodiment, when open-circuit situation is detected, described open-circuit signal propagates into described control unit by described diagnostic circuit and intermediate communication signal.
In one embodiment, described method also provides the LED load of each be electrically connected in described integrated circuit, and wherein when open-circuit situation is detected, described LED load is turned off.
Although describe theme of the present utility model by concrete preferred embodiment and example embodiment, accompanying drawing above and its illustrate and only describe the exemplary embodiments of theme, and therefore do not think and limit its scope.Clearly, a lot of possibility and change will be apparent to those skilled in the art.
As claim reflection hereinafter, creationary aspect can be to be less than all features of single disclosed embodiment above.Therefore, the claim expressed hereinafter is clearly incorporated in this embodiment thus, and every claim independently exists as independent embodiment of the present utility model.And, although embodiments more described herein comprise some features but do not comprise other comprise feature in other embodiments, the combination of the feature of different embodiment is intended to be included among scope of the present utility model, and as the skilled person will appreciate, different embodiments can be formed.
Claims (11)
1. sort a luminescent system, it is characterized in that, comprising:
At least two integrated circuits, wherein each integrated circuit comprises control inputs and sequence output;
Control unit, the first integrated circuit at least two integrated circuits described in being coupled to;
Intermediate communication signal, exports the described control inputs of the second integrated circuit at least two integrated circuits described in being coupled to by the described sequence of described first integrated circuit; And
Diagnostic circuit, is included in each integrated circuit, and wherein said diagnostic circuit detects open-circuit situation and produces open-circuit signal.
2. sequence luminescent system according to claim 1, is characterized in that, each integrated circuit comprises diagnosis and exports.
3. sequence luminescent system according to claim 2, is characterized in that, described diagnosis output is electrically coupled to described control unit.
4. sequence luminescent system according to claim 3, is characterized in that, when described diagnostic circuit detects open-circuit situation, described open-circuit signal is sent to described control unit by described diagnosis output.
5. sequence luminescent system according to claim 1, is characterized in that, when open-circuit situation is detected, described open-circuit signal propagates into described control unit by described diagnostic circuit and intermediate communication signal.
6. sequence luminescent system according to claim 1, is characterized in that, comprises the LED load of each be electrically connected in described integrated circuit, and wherein when open-circuit situation is detected, described LED load is turned off.
7. an open-circuit detection system, is characterized in that, comprising:
At least two integrated circuits, wherein each integrated circuit comprises control inputs and sequence output;
Control unit, the first integrated circuit at least two integrated circuits described in being coupled to;
Intermediate communication signal, exports the described control inputs of the second integrated circuit at least two integrated circuits described in being coupled to by the described sequence of described first integrated circuit; And
Diagnostic circuit, is included in each integrated circuit, and wherein said diagnostic circuit detects open-circuit situation and produces open-circuit signal.
8. open-circuit detection system according to claim 7, is characterized in that, each integrated circuit comprises diagnosis and exports.
9. open-circuit detection system according to claim 8, is characterized in that, described diagnosis output is electrically coupled to described control unit.
10. open-circuit detection system according to claim 9, is characterized in that, when described diagnostic circuit detects open-circuit situation, described open-circuit signal is sent to described control unit by described diagnosis output.
11. open-circuit detection systems according to claim 7, is characterized in that, when open-circuit situation is detected, described open-circuit signal propagates into described control unit by described diagnostic circuit and intermediate communication signal.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201462031060P | 2014-07-30 | 2014-07-30 | |
| US62/031,060 | 2014-07-30 | ||
| US14/804,166 | 2015-07-20 | ||
| US14/804,166 US9913355B2 (en) | 2014-07-30 | 2015-07-20 | Method of forming a sequencing system and structure therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204836686U true CN204836686U (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520558334.0U Active CN204836686U (en) | 2014-07-30 | 2015-07-29 | Sequencing luminescent system and open -circuit detecting system |
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| Country | Link |
|---|---|
| CN (1) | CN204836686U (en) |
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- 2015-07-29 CN CN201520558334.0U patent/CN204836686U/en active Active
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