CN101917184A - Four-redundancy discrete signal integrated circuit - Google Patents
Four-redundancy discrete signal integrated circuit Download PDFInfo
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- CN101917184A CN101917184A CN 201010260135 CN201010260135A CN101917184A CN 101917184 A CN101917184 A CN 101917184A CN 201010260135 CN201010260135 CN 201010260135 CN 201010260135 A CN201010260135 A CN 201010260135A CN 101917184 A CN101917184 A CN 101917184A
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Abstract
The invention belongs to avionics technology, and relates to the improvement of a four-redundancy discrete signal integrated circuit. The improved four-redundancy discrete signal integrated circuit consists of a first triode switching circuit [1], a second triode switching circuit [2], a third triode switching circuit [3] and a fourth triode switching circuit [4] with the same circuit structure. The output end of the first triode switching circuit [1] is connected in parallel with the output end of the third triode switching circuit [3] and then is connected with power input ends of the second triode switching circuit [2] and the fourth triode switching circuit [4]; and the output ends of the second triode switching circuit [2] and the fourth triode switching circuit [4] are connected in parallel to become the output end of the four-redundancy discrete signal integrated circuit. The four-redundancy discrete signal integrated circuit has the advantages of simple circuit structure, elimination of a signal processing and converting circuit, greatly reduction of cost and improvement of reliability.
Description
Technical field
The invention belongs to avionics, relate to improvement four-redundancy discrete signal integrated circuit.
Background technology
The structural principle of existing four-redundancy discrete signal integrated circuit is seen Fig. 1, it is made up of logical circuit, 4 signal processing circuits and a signal conversion circuit, 4 road discrete signals carry out through 4 signal processing circuits that photoelectricity is isolated respectively and level conversion after the respective input of input logic circuit, after logical process, the output after signal conversion circuit is handled again of the output signal of logical circuit.Its shortcoming is: the circuit structure complexity, discrete signal need pass through analog quantity-digital quantity--the conversion repeatedly of analog quantity, the output of logical circuit simultaneously need be carried out processing procedures such as photoelectricity isolation, level conversion and excitation amplification, not only increase circuit complexity and cost, and reduced reliability.
Summary of the invention
The objective of the invention is: propose the four-redundancy discrete signal integrated circuit that a kind of circuit structure is simple, cost is low, reliability is high.
Technical scheme of the present invention is: a kind of four-redundancy discrete signal integrated circuit, it is characterized in that, it by first transistor switching circuit to the, four transistor switching circuits totally four identical transistor switching circuits of circuit structure form, transistor switching circuit is by NPN triode G1, PNP triode G2, resistance R 1, R2, R3 and R4 and diode D form, resistance R 1 one ends are the discrete signal input, the other end is connected on the base stage of triode G1, triode G1 emitter is connected with earth signal, resistance R 2 is connected between the base stage of the collector electrode of triode G1 and triode G2, resistance R 3 is connected between the collector electrode of the base stage of triode G2 and triode G2, the current collection of triode G2 is power input very, resistance R 4 is connected between the positive pole of triode G2 emitter and diode D, and the negative pole of diode D is the output of transistor switching circuit; The discrete signal input of first transistor switching circuit is the first discrete signal input A, the discrete signal input of second transistor switching circuit is the second discrete signal input B, the discrete signal input of the 3rd transistor switching circuit is the 3rd discrete signal input C, the discrete signal input of the 4th transistor switching circuit is the 4th discrete signal input D, be connected with the power input of second transistor switching circuit after the output parallel connection of the output of first transistor switching circuit and the 3rd transistor switching circuit, become the output of four-redundancy discrete signal integrated circuit after the output parallel connection of second transistor switching circuit and the 4th transistor switching circuit with the 4th transistor switching circuit.
Advantage of the present invention is: circuit structure is simple, has omitted signal processing and translation circuit, greatly reduces cost, has improved reliability.The cost of one embodiment of the present of invention only is below one of percentage of logical circuit.
Description of drawings
Fig. 1 is the structure principle chart of existing four-redundancy discrete signal integrated circuit.
Fig. 2 is circuit theory diagrams of the present invention.
Embodiment
Below the present invention is described in further details.Referring to Fig. 2, a kind of four-redundancy discrete signal integrated circuit, it is characterized in that, it by first transistor switching circuit, 1 to the 4th transistor switching circuit 4 totally four identical transistor switching circuits of circuit structure form, transistor switching circuit is by NPN triode G1, PNP triode G2, resistance R 1, R2, R3 and R4 and diode D form, resistance R 1 one ends are the discrete signal input, the other end is connected on the base stage of triode G1, triode G1 emitter is connected with earth signal, resistance R 2 is connected between the base stage of the collector electrode of triode G1 and triode G2, resistance R 3 is connected between the collector electrode of the base stage of triode G2 and triode G2, the current collection of triode G2 is power input very, resistance R 4 is connected between the positive pole of triode G2 emitter and diode D, and the negative pole of diode D is the output of transistor switching circuit; The discrete signal input of first transistor switching circuit 1 is the first discrete signal input A, the discrete signal input of second transistor switching circuit 2 is second discrete signal input B, the discrete signal input of the 3rd transistor switching circuit 3 is the 3rd discrete signal input C, the discrete signal input of the 4th transistor switching circuit 4 is the 4th discrete signal input D, be connected with the power input of second transistor switching circuit 2 and the 4th transistor switching circuit 4 after the output parallel connection of the output of first transistor switching circuit 1 and the 3rd transistor switching circuit 3, become the output of four-redundancy discrete signal integrated circuit after the output parallel connection of second transistor switching circuit 2 and the 4th transistor switching circuit 4.
The purpose of synthetic circuit is to realize the multiselect output of four discrete magnitude input signal A, B, C, D.Specifically comprise: first kind of combination is A and B when being high level, and output should be high level; Second kind of combination is C and D when being high level, and output should be high level; The third combination is A and D when being high level, and output should be high level; The 4th kind of combination is B and C when being high level, and output should be high level; The 5th kind of combination is A, B and C when being high level, and output should be high level; The 6th kind of combination is A, B and D when being high level, and output should be high level; The 7th kind of combination is B, C and D when being high level, the output high level; The 8th kind of combination is A, C and D when being high level, and output should be high level; The 9th kind of combination is A, B, C and D when being high level, and output should be high level.Wherein high level is meant the signal more than or equal to 5V, and low level is meant earth signal.Operation principle of the present invention is: for first kind of combination, and when A and B are high level, first transistor switching circuit 1 and 2 conductings of second transistor switching circuit, the output of four-redundancy discrete signal integrated circuit is a high level; Second kind to be incorporated into the 9th kind of combination identical with first kind of combinatorial principle.
Claims (1)
1. four-redundancy discrete signal integrated circuit, it is characterized in that, it by first transistor switching circuit [1] to the 4th transistor switching circuit [4] totally four identical transistor switching circuits of circuit structure form, transistor switching circuit is by NPN triode G1, PNP triode G2, resistance R 1, R2, R3 and R4 and diode D form, resistance R 1 one ends are the discrete signal input, the other end is connected on the base stage of triode G1, triode G1 emitter is connected with earth signal, resistance R 2 is connected between the base stage of the collector electrode of triode G1 and triode G2, resistance R 3 is connected between the collector electrode of the base stage of triode G2 and triode G2, the current collection of triode G2 is power input very, resistance R 4 is connected between the positive pole of triode G2 emitter and diode D, and the negative pole of diode D is the output of transistor switching circuit; The discrete signal input of first transistor switching circuit [1] is the first discrete signal input A, the discrete signal input of second transistor switching circuit [2] is the second discrete signal input B, the discrete signal input of the 3rd transistor switching circuit [3] is the 3rd discrete signal input C, the discrete signal input of the 4th transistor switching circuit [4] is the 4th discrete signal input D, be connected with the power input of second transistor switching circuit [2] after the output parallel connection of the output of first transistor switching circuit [1] and the 3rd transistor switching circuit [3], become the output of four-redundancy discrete signal integrated circuit after the output parallel connection of second transistor switching circuit [2] and the 4th transistor switching circuit [4] with the 4th transistor switching circuit [4].
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102601353A CN101917184B (en) | 2010-08-19 | 2010-08-19 | Four-redundancy discrete signal integrated circuit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102601353A CN101917184B (en) | 2010-08-19 | 2010-08-19 | Four-redundancy discrete signal integrated circuit |
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| CN101917184A true CN101917184A (en) | 2010-12-15 |
| CN101917184B CN101917184B (en) | 2012-02-22 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105204431A (en) * | 2015-08-11 | 2015-12-30 | 中国航空工业集团公司西安飞机设计研究所 | Monitoring-determining method and device for four redundancy signals |
| CN108415238A (en) * | 2018-02-02 | 2018-08-17 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of electricity trim monitoring switch method |
| CN110750061A (en) * | 2019-10-18 | 2020-02-04 | 天津津航计算技术研究所 | Method for enhancing transmission reliability of discrete signal |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003077686A (en) * | 2001-09-04 | 2003-03-14 | Taguma Kogyo Kk | Automatic switch device |
| CN101635567A (en) * | 2009-03-23 | 2010-01-27 | 陈如 | Pulse driver with variable level displacement and variable output amplitude |
-
2010
- 2010-08-19 CN CN2010102601353A patent/CN101917184B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003077686A (en) * | 2001-09-04 | 2003-03-14 | Taguma Kogyo Kk | Automatic switch device |
| CN101635567A (en) * | 2009-03-23 | 2010-01-27 | 陈如 | Pulse driver with variable level displacement and variable output amplitude |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105204431A (en) * | 2015-08-11 | 2015-12-30 | 中国航空工业集团公司西安飞机设计研究所 | Monitoring-determining method and device for four redundancy signals |
| CN108415238A (en) * | 2018-02-02 | 2018-08-17 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of electricity trim monitoring switch method |
| CN110750061A (en) * | 2019-10-18 | 2020-02-04 | 天津津航计算技术研究所 | Method for enhancing transmission reliability of discrete signal |
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| Publication number | Publication date |
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| CN101917184B (en) | 2012-02-22 |
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