CN109842405A - A kind of remaining control two from three voting circuit - Google Patents
A kind of remaining control two from three voting circuit Download PDFInfo
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- CN109842405A CN109842405A CN201711212088.3A CN201711212088A CN109842405A CN 109842405 A CN109842405 A CN 109842405A CN 201711212088 A CN201711212088 A CN 201711212088A CN 109842405 A CN109842405 A CN 109842405A
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- pmos tube
- voting circuit
- diode
- voting
- remaining
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Abstract
The present invention relates to a kind of voting circuit, in particular to a kind of remaining controls two from three voting circuit.The voting circuit includes tri- system of A, B, C, all includes two PMOS tube and a diode in each system, and two ends PMOS tube G connect same control signal, and the end S of No.1 PMOS tube connects power supply, and the end D of No. two PMOS tube connects external loading by diode；The end D of No.1 PMOS tube connects the end S of No. two PMOS tube in B system in A system；The end D of No.1 PMOS tube connects the end S of No. two PMOS tube in C system in B system；The end D of No.1 PMOS tube connects the end S of No. two PMOS tube in A system in C system.The voting control of two from three remaining is carried out by pure hardware configuration, software and hardware close coupling degree is reduced, improves mission reliability.
Description
Two from three voting circuit is controlled in a kind of remaining
Technical field
The present invention relates to a kind of voting circuit, in particular to a kind of remaining controls two from three voting circuit.
Background technique
It usually will appear redundance table since its mission reliability requires height in avionic device control field
The usage scenario certainly controlled, but in the usage scenario of part, since actuator cannot achieve redundance, it will appear control circuit
Redundance, the usage scenario of actuator single redundancy.
Traditional remaining control voting is that logic voting operation is participated in by software, and output voting result control is external corresponding
Actuator is acted.This mode increases software overhead, makes software and hardware close coupling, reduces mission reliability.
Summary of the invention
Present invention solves the technical problem that: the object of the present invention is to provide a kind of pure hardware configurations to carry out two from three remaining table
Certainly control circuit reduces software and hardware close coupling degree, improves mission reliability.
Technical solution of the present invention: a kind of remaining control two from three voting circuit, it is characterized in that: the voting circuit packet
Tri- system of A, B, C is included, all includes two PMOS tube and a diode in each system, two ends PMOS tube G connect same control letter
Number, the end S of No.1 PMOS tube connects power supply, and the end D of No. two PMOS tube connects external loading by diode；
The end D of No.1 PMOS tube connects the end S of No. two PMOS tube in B system in A system；
The end D of No.1 PMOS tube connects the end S of No. two PMOS tube in C system in B system；
The end D of No.1 PMOS tube connects the end S of No. two PMOS tube in A system in C system.
Preferably, the through-current capability of PMOS tube is greater than 6.5A, drain-source breakdown voltage >=100V.
Preferably, the two from three voting circuit is especially suitable for aviation field electromagnetic valve controlling system.
Preferably, the solenoid valve power is greater than 100W.
Beneficial effects of the present invention: the voting control of two from three remaining is carried out by pure hardware configuration, reduces the tight coupling of software and hardware
Conjunction degree improves mission reliability.
Detailed description of the invention
Fig. 1 is that remaining controls two from three voting circuit schematic diagram in embodiment.
Specific embodiment
Referring to Fig. 1, a kind of remaining control two from three voting circuit mainly by PMOS tube V1, PMOS tube V2, PMOS tube V3,
PMOS tube V4, PMOS tube V5, PMOS tube V6, diode V7, diode V8, diode V9 and external loading actuator R1 are constituted.
It is characterized by:
(1) PMOS tube V1, PMOS tube V2 and diode V7 constitute A system voting circuit；PMOS tube V3, PMOS tube V4 and two poles
Pipe V8 constitutes B system voting circuit；PMOS tube V5, PMOS tube V6 and diode V9 constitute C system voting circuit；A system, B system, C system structure
At triplex redundance control circuit；
(2) 28V DC power supply is connected to the end S of A system PMOS tube V1, the end S of B system PMOS tube V3, C system PMOS tube V5 on machine
The end S；
(3) end D of PMOS tube V1 is connected to the end S of PMOS tube V4, and the end D of PMOS tube V3 is connected to the end S of PMOS tube V6,
The end D of PMOS tube V5 is connected to the end S of PMOS tube V2；
(4) end D of PMOS tube V2 be connected to diode V7+end, the end D of PMOS tube V4 be connected to diode V8+end,
The end D of PMOS tube V6 be connected to diode V9+end；
(5) diode V7-end, diode V8-end, diode V9-end is connected in parallel to external actuator load R1
One end, the other end of external actuator load R1 is connected to ground；
(6) end the G parallel connection of PMOS tube V1 and PMOS tube V2 receives making can control and holding for the output control command Con_A of A system
The turn-on and turn-off of row metal-oxide-semiconductor operate；
(7) end the G parallel connection of PMOS tube V3 and PMOS tube V4 receives making can control and holding for the output control command Con_B of B system
The turn-on and turn-off of row metal-oxide-semiconductor operate；
(8) end the G parallel connection of PMOS tube V5 and PMOS tube V6 receives making can control and holding for the output control command Con_C of C system
The turn-on and turn-off of row metal-oxide-semiconductor operate；
(9) when A system output control command Con_A is enabled to be allowed to export, metal-oxide-semiconductor V1 and V2 conducting；It is controlled when B system exports
When order Con_B is enabled to be allowed to export, metal-oxide-semiconductor V3 and V4 conducting；When C system output control command Con_C is enabled to be allowed to export,
Metal-oxide-semiconductor V5 and V6 conducting；(10) circuit state is shown in Table 1 when entire voting circuit operation；
Table 1 three is voting circuit state table
Note: Con_A=0 represents output and does not enable, and it is enabled that Con_A=0 represents output.
(11) as it can be seen from table 1 hardware circuit performs the operation of two from three remaining voting automatically, when there is two systems or more
When enabled, effective output could be externally formed, the monosystem failure of system can be tolerated, can effectively improve mission reliability.
Claims (4)
1. a kind of remaining controls two from three voting circuit, it is characterized in that: the voting circuit includes tri- system of A, B, C, each system
In all include two PMOS tube and a diode, two ends PMOS tube G connect same control signals, the end S of No.1 PMOS tube
Power supply is connected, the end D of No. two PMOS tube connects external loading by diode；
The end D of No.1 PMOS tube connects the end S of No. two PMOS tube in B system in A system；
The end D of No.1 PMOS tube connects the end S of No. two PMOS tube in C system in B system；
The end D of No.1 PMOS tube connects the end S of No. two PMOS tube in A system in C system.
2. a kind of remaining controls two from three voting circuit according to claim 1, it is characterized in that: the through-current capability of PMOS tube is big
In 6.5A, drain-source breakdown voltage >=100V.
3. a kind of remaining controls two from three voting circuit according to claim 1, it is characterized in that: the two from three decides by vote electricity
Road is especially suitable for aviation field electromagnetic valve controlling system.
4. a kind of remaining controls two from three voting circuit according to claim 3, it is characterized in that: the solenoid valve power is greater than
100W。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711212088.3A CN109842405B (en) | 2017-11-27 | 2017-11-27 | Redundancy control two-out-of-three voting circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711212088.3A CN109842405B (en) | 2017-11-27 | 2017-11-27 | Redundancy control two-out-of-three voting circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109842405A true CN109842405A (en) | 2019-06-04 |
| CN109842405B CN109842405B (en) | 2023-01-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711212088.3A Active CN109842405B (en) | 2017-11-27 | 2017-11-27 | Redundancy control two-out-of-three voting circuit |
Country Status (1)
| Country | Link |
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| CN (1) | CN109842405B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111694268A (en) * | 2020-05-26 | 2020-09-22 | 深圳通业科技股份有限公司 | Two-out-of-three voting control system |
| CN113759781A (en) * | 2021-09-01 | 2021-12-07 | 中国航空工业集团公司西安航空计算技术研究所 | Signal acquisition circuit of aviation pneumatic type fire alarm sensor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000069040A2 (en) * | 1999-01-29 | 2000-11-16 | Terayon Communication Systems, Inc. | Power delivery system with compensation for line loss |
| EP1521156A1 (en) * | 2003-09-30 | 2005-04-06 | Infineon Technologies AG | Regulating system |
| CN103516346A (en) * | 2012-06-18 | 2014-01-15 | 中国航空工业集团公司西安飞机设计研究所 | A triplex redundancy simulation signal hardware voting circuit |
| CN103869781A (en) * | 2014-03-14 | 2014-06-18 | 北京航空航天大学 | Non-similar three-redundancy onboard electric load management center |
-
2017
- 2017-11-27 CN CN201711212088.3A patent/CN109842405B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000069040A2 (en) * | 1999-01-29 | 2000-11-16 | Terayon Communication Systems, Inc. | Power delivery system with compensation for line loss |
| EP1521156A1 (en) * | 2003-09-30 | 2005-04-06 | Infineon Technologies AG | Regulating system |
| CN103516346A (en) * | 2012-06-18 | 2014-01-15 | 中国航空工业集团公司西安飞机设计研究所 | A triplex redundancy simulation signal hardware voting circuit |
| CN103869781A (en) * | 2014-03-14 | 2014-06-18 | 北京航空航天大学 | Non-similar three-redundancy onboard electric load management center |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111694268A (en) * | 2020-05-26 | 2020-09-22 | 深圳通业科技股份有限公司 | Two-out-of-three voting control system |
| CN113759781A (en) * | 2021-09-01 | 2021-12-07 | 中国航空工业集团公司西安航空计算技术研究所 | Signal acquisition circuit of aviation pneumatic type fire alarm sensor |
| CN113759781B (en) * | 2021-09-01 | 2023-12-22 | 中国航空工业集团公司西安航空计算技术研究所 | Signal acquisition circuit of aviation pneumatic type fire sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109842405B (en) | 2023-01-13 |
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