CN202424137U - Control circuit for locomotive converter - Google Patents
Control circuit for locomotive converter Download PDFInfo
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- CN202424137U CN202424137U CN2012200055072U CN201220005507U CN202424137U CN 202424137 U CN202424137 U CN 202424137U CN 2012200055072 U CN2012200055072 U CN 2012200055072U CN 201220005507 U CN201220005507 U CN 201220005507U CN 202424137 U CN202424137 U CN 202424137U
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- programmable gate
- gate array
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Abstract
The utility model discloses a control circuit for a locomotive converter. The control circuit comprises a first level converter, a field programmable gate array, a central processing unit and a second level converter, wherein the first level converter converts the high level of a state quantity of the locomotive converter into a low level; the field programmable gate array processes the state quantity according to a processing signal; the central processing unit transmits the processing signal to the field programmable gate array; the second level converter converts the low level of a control signal output by the field programmable gate array into a high level; the input end of the first level converter is connected with the locomotive converter; the first input end of the field programmable gate array is connected with the output end of the first level converter, and the second input end of the field programmable gate array is connected with the output end of the central processing unit; the output end of the field programmable gate array is connected with the input end of the second level converter; and the output end of the second level converter is connected with the locomotive converter. The control circuit is used for solving the problems of low reliability and large occupied space of the control circuit in the prior art.
Description
Technical field
The utility model relates to circuit structure, relates in particular to a kind of control circuit of locomotive current transformer.
Background technology
The control circuit of locomotive current transformer is present rolling stock current transformer core control equipment, installs in the control system in locomotive traction power compartment.The control circuit of locomotive current transformer of the prior art comprises: the circuit element of a plurality of separations such as collecting unit, first process chip, second process chip and central processing unit.
Wherein, collecting unit is used to gather the quantity of state of locomotive current transformer, and this quantity of state comprises: rate signal, temperature signal, voltage signal and current signal etc.; Collecting unit is sent to first process chip with the quantity of state of gathering; So that first process chip is regulated and control quantity of state according to the processing signals of central processing unit; And the adjustment signal after will regulating and control is sent to second process chip so that second process chip is provided with the control signal that can control the locomotive current transformer with output to adjustment signal; And then realize the fault-signal of locomotive current transformer is carried out the error protection processing, the while can realize the carrying out of the running status of the current transformer of locomotive monitored in real time.
Yet; First process chip of aforementioned control circuit and the second process chip inside comprise more discrete component; Like the resistance that each internal chip enable signal carried out analog filtering, capacity cell etc., make the veneer that comprises a plurality of separations in this control circuit, the connecting line between those veneers not only takes up room; And signal processing and response speed are slow, and it causes the reliability of control circuit to reduce.
The utility model content
The utility model provides a kind of control circuit of locomotive current transformer, in order to the low and big problem that takes up room of reliability that solves control circuit of the prior art.
The utility model provides a kind of control circuit of locomotive current transformer; It comprises: be used for converting the high level of the quantity of state of locomotive current transformer into low level first level translator; Be used for handling the field programmable gate array of said quantity of state according to processing signals; Be used for issuing the central processing unit of processing signals, and the low transition that is used for the control signal of said field programmable gate array output is second level translator of high level to said field programmable gate array;
Wherein, the input of said first level translator connects the collection terminal of locomotive current transformer; The first input end of said field programmable gate array connects the output of said first level translator, and second input of said field programmable gate array connects the output of said central processing unit; The output of said field programmable gate array connects the input of said second level translator; The output of said second level translator connects the control end of locomotive current transformer.
Further, the control circuit of locomotive current transformer also comprises: being used for analog signal conversion is the analog to digital converter and the digital to analog converter that is used for digital signal is converted into analog signal of digital signal;
The input of said analog to digital converter connects the output of said first level translator, and the output of said analog to digital converter connects the first input end of said field programmable gate array;
The input of said digital to analog converter connects the output of said field programmable gate array, and the output of said digital to analog converter connects the input of second level translator.
Further, said first level translator comprises: be used for the quantity of state of high level is converted into low level high-low level transducer and is used for the stable photoisolator of low level quantity of state maintenance;
The input of said high-low level transducer connects the collection terminal of the current transformer of said locomotive, and the output of said high-low level transducer connects the input of said photoisolator;
The output of said photoisolator connects the first input end of said field programmable gate array.
Can know by technique scheme; The control circuit of the locomotive current transformer of the utility model; Field programmable gate array through adopting integrative-structure is realized real-time analysis and monitoring to the running status of locomotive current transformer; Make that the response speed of control circuit is fast, and improved the stability and the reliability of control circuit.In addition, owing to all circuit elements of field programmable gate array are integrated on the veneer, and then it is very little to take up room, and has simplified the structure of control circuit in the prior art simultaneously.
Description of drawings
The structural representation of the control circuit of the locomotive current transformer that Fig. 1 provides for the utility model one embodiment;
The structural representation of the control circuit of the locomotive current transformer that Fig. 2 provides for another embodiment of the utility model.
Embodiment
Fig. 1 shows the structural representation of the control circuit of the locomotive current transformer that the utility model one embodiment provides; As shown in Figure 1, the control circuit of the locomotive current transformer of present embodiment comprises: first level translator 11, field programmable gate array 12, central processing unit 13 and second level translator 14.
Wherein, The input of first level translator 11 connects the collection terminal of locomotive current transformer 10; Be used for the quantity of state (like current signal, voltage signal, rate signal and temperature signal etc.) that the locomotive current transformer is gathered is carried out level conversion, so that the quantity of state of high level converts the low level quantity of state that supplies field programmable gate array to handle into.The output of this first level translator 11 connects the first input end of field programmable gate array 12, and then will convert low level quantity of state into and export field programmable gate array 12 to;
The output of central processing unit 13 connects second input of field programmable gate array 12; Be used in real time to field programmable gate array 12 input processing signals; So that field programmable gate array is according to the quantity of state of processing signals monitoring in real time and regulation and control locomotive current transformer; And take place when unusual at quantity of state, output in time comprises the control signal of troubleshooting signal;
Field programmable gate array 12 receives the low level quantity of state of the output of first level translator 11 through first input end; Second input receives the processing signals of central processing unit 13 outputs, with adopting each inner circuit element that quantity of state is handled, makes the control signal of locomotive current transformer 10 operate as normal with output; Perhaps, when the locomotive current transformer broke down, output comprised the control signal of troubleshooting signal;
The input of second level translator 14 connects the output of field programmable gate array 12; Be used to receive the control signal and/or the troubleshooting signal of field programmable gate array 12 outputs; And be high level with those conversion of signals; To input to the control end of locomotive current transformer 10, realize the operation of control locomotive current transformer 10.
Need to prove that the level of the quantity of state that the field programmable gate array 12 in the present embodiment receives is 3.3V, the level of the quantity of state of the collection terminal collection of its locomotive current transformer is 5V.The conversion of signals that aforesaid thus first level translator 11 is used for 5V is the signal of 3.3V; Correspondingly, to be used for the conversion of signals with 3.3V be the signal of 5V to second level translator.
In the present embodiment, first level translator 11, second level translator 14 all are the conversions that realize high-low level through hardware circuit.
In practical operation; The collection terminal of locomotive current transformer 10 also is used to obtain activation signal, insulated gate bipolar transistor (the Insulated Gate Bipolar Transistor of locomotive current transformer contactor; Abbreviation IGBT) drive feedback signal, address signal feedback signal and engine truck feedback signal etc. are so that field programmable gate array 12 is regulated and control the running status of locomotive current transformer according to above-mentioned processing signals.
In other embodiment, aforesaid first level translator 11 also can comprise: be used for the quantity of state of high level is converted into low level high-low level transducer and is used for the stable photoisolator of low level quantity of state maintenance; The input of high-low level transducer connects the collection terminal of the current transformer of locomotive, and the output of high-low level transducer connects the input of photoisolator; The output of photoisolator connects the first input end of field programmable gate array 12.
Can know by the foregoing description; The control circuit of above-mentioned locomotive current transformer is realized real-time analysis and monitoring to the running status of locomotive current transformer through the field programmable gate array that adopts integrative-structure; Make that the response speed of control circuit is fast, and improved the stability and the reliability of control circuit.In addition, owing to all circuit elements of field programmable gate array are integrated on the veneer, and then it is very little to take up room, and has simplified the structure of control circuit in the prior art simultaneously.
Fig. 2 shows the structural representation of the control circuit of the locomotive current transformer that the utility model one embodiment provides; As shown in Figure 2, the control circuit of the locomotive current transformer of present embodiment comprises: first level translator 11, field programmable gate array 12, central processing unit 13, second level translator 14, analog to digital converter 15 and digital to analog converter 16.
The analog signal conversion that analog to digital converter 15 in the present embodiment is used for quantity of state is a digital signal, and digital to analog converter 16 is used for converting digital signal into analog signal.
Particularly, the input of analog to digital converter 15 connects the output of first level translator 11, and the output of analog to digital converter 15 connects the first input end of field programmable gate array 12; Be low level digital signal so that input to the signal of field programmable gate array 12;
The input of digital to analog converter 16 connects the output of field programmable gate array 12, and the output of digital to analog converter 16 connects the input of second level translator 14, and then the signal that inputs to the control end of locomotive current transformer is the analog signal that can discern.
Especially, aforesaid first level translator 11 also can comprise: be used for the quantity of state of high level is converted into low level high-low level transducer 111 and is used for the stable photoisolator 112 of low level quantity of state maintenance; The input of high-low level transducer 111 connects the collection terminal of locomotive current transformer 10, and the output of high-low level transducer connects the input of photoisolator 112; The input of the output connection mode number converter 15 of photoisolator 112.
The model of the digital to analog converter 16 in the present embodiment is MAX5741; The model of first level translator is 16245; Being integrated with model in the chip of field programmable gate array is XC3S500EFPQ208-I processor and program storage, and this program storage is used to store the operation configuration data of field programmable gate array.
In addition; Field programmable gate array 12 communicates through address bus, data/address bus and control port with central processing unit 13; Central processing unit 13 sends processing signals to field programmable gate array 12; So that 12 pairs of processing signals of field programmable gate array decode, and then the circuit of connecting inner such as fault comparison circuit, microcontroller interface circuit are handled the quantity of state of locomotive current transformer according to processing signals.Aforesaid processing signals comprises the signal, shutdown/enabling signal of signal, transmission/blockade pulse-width modulation (Pulse Width Modulation the is called for short PWM) pulse of the contactor of closure/disconnection locomotive current transformer etc.
Especially, aforesaid field programmable gate array is integrated with devices such as digital dock administrative unit, multiplier, dedicated digital signal processor.
Field programmable gate array in the present embodiment is used to accomplish the SECO of peripheral communications interface; Realize the error protection of current transformer; Functions such as control of driving pulse Dead Time and analog filtering realize that the fault that produces in the current transformer running is made real-time response to be handled.
Need to prove that above-mentioned arbitrary parts all are to realize that through hardware circuit described connection is electric connection between its above-mentioned any two parts.
What should explain at last is: above embodiment is only in order to the technical scheme of explanation the utility model, but not to its restriction; Although the utility model has been carried out detailed explanation with reference to previous embodiment; Those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of each embodiment technical scheme of essence disengaging the utility model of relevant art scheme.
Claims (3)
1. the control circuit of a locomotive current transformer; It is characterized in that; Comprise: be used for converting the high level of the quantity of state of locomotive current transformer into low level first level translator; Be used for handling the field programmable gate array of said quantity of state, be used for issuing the central processing unit of processing signals, and the low transition that is used for the control signal of said field programmable gate array output is second level translator of high level to said field programmable gate array according to processing signals;
Wherein, the input of said first level translator connects the collection terminal of locomotive current transformer; The first input end of said field programmable gate array connects the output of said first level translator, and second input of said field programmable gate array connects the output of said central processing unit; The output of said field programmable gate array connects the input of said second level translator; The output of said second level translator connects the control end of locomotive current transformer.
2. the control circuit of locomotive current transformer according to claim 1 is characterized in that, also comprises: being used for analog signal conversion is the analog to digital converter and the digital to analog converter that is used for digital signal is converted into analog signal of digital signal;
The input of said analog to digital converter connects the output of said first level translator, and the output of said analog to digital converter connects the first input end of said field programmable gate array;
The input of said digital to analog converter connects the output of said field programmable gate array, and the output of said digital to analog converter connects the input of second level translator.
3. the control circuit of locomotive current transformer according to claim 1; It is characterized in that said first level translator comprises: be used for the quantity of state of high level is converted into low level high-low level transducer and is used for the stable photoisolator of low level quantity of state maintenance;
The input of said high-low level transducer connects the collection terminal of the current transformer of said locomotive, and the output of said high-low level transducer connects the input of said photoisolator;
The output of said photoisolator connects the first input end of said field programmable gate array.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200055072U CN202424137U (en) | 2012-01-06 | 2012-01-06 | Control circuit for locomotive converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200055072U CN202424137U (en) | 2012-01-06 | 2012-01-06 | Control circuit for locomotive converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202424137U true CN202424137U (en) | 2012-09-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200055072U Expired - Lifetime CN202424137U (en) | 2012-01-06 | 2012-01-06 | Control circuit for locomotive converter |
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| CN (1) | CN202424137U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103199497A (en) * | 2012-01-06 | 2013-07-10 | 中国北车股份有限公司大连电力牵引研发中心 | Control circuit of locomotive converter |
-
2012
- 2012-01-06 CN CN2012200055072U patent/CN202424137U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103199497A (en) * | 2012-01-06 | 2013-07-10 | 中国北车股份有限公司大连电力牵引研发中心 | Control circuit of locomotive converter |
| CN103199497B (en) * | 2012-01-06 | 2015-11-25 | 中国北车股份有限公司 | The control circuit of locomotive converter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA CNR CORPORATION LIMITED Free format text: FORMER OWNER: DALIAN ELECTRIC TRACTION RESEARCH + DEVELOPMENT CENTER OF CHINA NORTH LOCOMOTIVE CO.,LTD. Effective date: 20140312 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 116022 DALIAN, LIAONING PROVINCE TO: 100078 FENGTAI, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140312 Address after: 100078 Beijing Fengtai District city park is a district 15 building Patentee after: China CNR Corporation Limited Address before: 116022 Shahekou, Liaoning, China No. 51 The Strip Patentee before: Dalian Electric Traction Research & Development Center of China North Locomotive Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20120905 Effective date of abandoning: 20151125 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |