CN103036303A - Power supply switching circuit of test equipment - Google Patents
Power supply switching circuit of test equipment Download PDFInfo
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- CN103036303A CN103036303A CN2012105284072A CN201210528407A CN103036303A CN 103036303 A CN103036303 A CN 103036303A CN 2012105284072 A CN2012105284072 A CN 2012105284072A CN 201210528407 A CN201210528407 A CN 201210528407A CN 103036303 A CN103036303 A CN 103036303A
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- power supply
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Abstract
The invention relates to the technical field of power supply switching, in particular to a power supply switching circuit of test equipment. The power supply switching circuit of the test equipment is mainly applicable to relevant test equipment used in an air vehicle testing stage. The test equipment is powered-up to work by a power supply on the ground in a ground test and by a power supply carried by a carrier in a flight test. The power supply switching circuit of the test equipment comprises a ground power supply and a carrier power supply, wherein two switch gears of a power supply switching control switch of the test equipment are respectively connected with the ground power supply and the carrier power supply, and the power supply switching control switch of the test equipment is controlled by a second relay to achieve gear switching between the ground power supply and the carrier power supply. The power supply switching circuit of the test equipment is simple in structure, and safe and reliable in use. Actual use proves that smooth switching between the two power supplies is well achieved by using the power supply switching circuit of the test equipment.
Description
Technical field
The present invention relates to power supply switch technology field, specifically, relate to a kind of testing equipment power supply change-over circuit, be mainly used on the aircraft experimental stage dependence test equipment, when ground experiment, testing equipment is by the work of surface power supply Power supply, and when making a flight test, testing equipment is powered by the carrier power supply that carrier carries.
Background technology
Radiotechnics is widely used in the Aerospace Products development stage, means of testing as a kind of Radio Link, test macro should keep separate with system under test (SUT), and testing equipment is except having the interface conjunctionn in input with equipment under test, and other parts are connected with the system under test (SUT) onrelevant.When testing equipment is used on ground, worked by the surface power supply Power supply; During flight test, testing equipment is by the carrier power supply powered operation that places on the carrier.
Surface power supply power supply and carrier power supply must be changed on suitable opportunity according to user demand.
Therefore, the present invention is exactly take above-mentioned background technology as starting point, designs a kind of circuit that meets instructions for use, can realize exactly the smooth switching between two kinds of power supplys.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, adapt to the reality needs, a kind of testing equipment power supply change-over circuit is provided, be mainly used on the aircraft dependence test equipment, when testing equipment is used on ground, by the work of surface power supply Power supply, when making a flight test, the carrier power supply power supply that testing equipment is carried by carrier.
In order to realize purpose of the present invention, the technical solution used in the present invention is:
A kind of testing equipment power supply change-over circuit, comprise surface power supply power supply and carrier power supply, the power control switch of testing equipment is connected with surface power supply power supply and carrier power supply respectively at two switch gears, and the power control switch of described testing equipment is by the gear switch of the second Control realization between surface power supply power supply and carrier power supply.
Also comprise the 3rd relay, the high potential input of the 3rd relay is for turning the electric control signal circuit, the low potential end of the 3rd relay is earth terminal, one end of the control circuit of the 3rd relay and carrier power supply are connected, the other end is realized being switched on or switched off with the second relay by its driving switch of the 3rd Control as the high potential input of the second relay, the low potential end of the second relay is earth terminal, after the second relay was connected, the driving switch of its control circuit switched to the carrier power supply and connects.
Also comprise the first relay, described the first relay with the surface power supply power supply as the high potential input, take earth terminal as the low potential end; The control circuit of described the first relay with turn electricity and be ready to signal circuit and be communicated with, when the first relay not when electric, turn that electricity is ready to the control circuit of signal circuit by the first relay and the connection of the second relay and as the high potential input of the second relay, when the first relay gets when electric, the control circuit of the first relay is broken into neutral gear.
Beneficial effect of the present invention is:
Simple in structure, safe and reliable, use checking through reality, can be good at realizing the smooth conversion between two kinds of power supplys.
Description of drawings
Fig. 1 is circuit theory diagrams of the present invention.
Fig. 2 is for connecting " turning electric control signal " switch and " carrier power supply " switch, the schematic diagram of each switch gear behind disconnection " surface power supply power supply " switch.
Fig. 3 is for connecting " turn electricity and be ready to signal " switch, the schematic diagram of each switch gear behind disconnection " turning electric control signal " switch.
Fig. 4 is the schematic diagram of each switch gear behind connection " surface power supply power supply " switch.
Embodiment
The present invention is further described below in conjunction with drawings and Examples:
Embodiment: referring to Fig. 1-Fig. 4.
A kind of testing equipment power supply change-over circuit, comprise surface power supply power supply and carrier power supply, the power control switch of testing equipment is connected with surface power supply power supply and carrier power supply respectively at two switch gears, as shown in Figure 1, switch 1,2 is respectively the power control switch of testing equipment, and the power control switch of described testing equipment is by the second relay K
2Control realizes the gear switch between surface power supply power supply and carrier power supply.Switch 1,2 is gear 9,11 o'clock, by the surface power supply Power supply; Switch 1,2 is powered by the carrier power supply gear 10,12 o'clock.
Also comprise the 3rd relay K
3, the high potential input of the 3rd relay is for turning the electric control signal circuit, and the low potential end of the 3rd relay is earth terminal, the 3rd relay K
3An end of control circuit and carrier power supply connect, the other end is as the second relay K
2The high potential input by the 3rd relay K
3Controlling its driving switch realizes and the second relay K
2Be switched on or switched off, the low potential end of the second relay is earth terminal, and after the second relay was connected, the driving switch of its control circuit switched to the carrier power supply and connects.
The 3rd relay K
3Not when electric, the driving switch 5,6 of its control circuit lays respectively at 17,19 grades, is neutral gear, the 3rd relay K
3Via turn the electric control signal circuit get electric after, the driving switch 5,6 of its control circuit lays respectively at 18,20 grades and connects with the carrier power supply, and with the second relay K
2Connection makes it electricly, the second relay K
2Driving switch 1,2,3,4 switch to 10,12,14,16 grades from 9,11,13,15 grades respectively and connect with the carrier power supply.
Also comprise the first relay K
1, described the first relay K
1With the surface power supply power supply as the high potential input, take earth terminal as the low potential end; Described the first relay K
1Control circuit with turn electricity and be ready to signal circuit and be communicated with, when the first relay K
1Not when electric, turn electricity and be ready to signal circuit by the first relay K
1Control circuit and the second relay K
2Connect and as the second relay K
2The high potential input, when the first relay K
1When electric, the first relay K
1Control circuit be broken into neutral gear.
When making a flight test, undertaken by following operating process:
1. connect " surface power supply power supply " switch, switch 1,2 is communicated with electricly with contact 9,11 respectively, and testing equipment is in running order, by the surface power supply Power supply, can disconnect at any time this switch, finishes testing equipment work.
2. connect " turning electric control signal " switch and " carrier power supply " switch, disconnect " surface power supply power supply " switch, the second relay K
2, the 3rd relay K
3Work, each make and break contact as shown in Figure 2, the 3rd relay K
3Right-hand member be high potential input 26, left end is earth terminal 25, switch 5,6 gear become 18,20, the second relay K by 17,19
2Right-hand member connect as high potential input 28 and carrier power supply, left end is earth terminal 27, the second relay K
2Electric after, driving switch 1,2,3,4 switches to 10,12,14,16 grades from 9,11,13,15 grades respectively, testing equipment transfers carrier power supply powered operation to by the surface power supply Power supply; The first relay K
1 Right input 30 be high potential, left end is earth terminal 29, switch 7,8 gear become 21,23 by 22,24, keep simultaneously the second relay K
2Right-hand member input 28 be the high potential input.
3. disconnect " turning electric control signal " switch, the 3rd relay K
3Quit work, switch 5,6 gear revert to 17,19 by 18,20, turn electricity turn get ready signal circuit by switch 8 and contact 23 directly with the second relay K
2Right-hand member 28 be communicated with as the second relay K
2The high potential input, the second relay K
2Continuation forms the self-insurance state by the power supply of carrier power supply, and testing equipment is still by carrier power supply powered operation; Simultaneously by the second relay K
2One group of closing contact is delivered to the voltage signal of carrier power supply and is turned the indication of electric console, finishes the conversion between surface power supply power supply and the carrier power supply.
4. if need to go back to the work of surface power supply Power supply or stop the testing equipment operating state, then connect " surface power supply power supply " switch, at this moment the first relay K
1Work, switch 7,8 gear become 22,24, the second relay K by 21,23
2Dead electricity quits work, and each switch returns to state shown in Figure 4, and the carrier power supply is stopped power supply, and transfers the work of surface power supply Power supply to, disconnects " surface power supply power supply " switch, and testing equipment quits work.
What embodiments of the invention were announced is preferred embodiment, but is not limited to this, those of ordinary skill in the art; very easily according to above-described embodiment, understand spirit of the present invention, and make different amplifications and variation; but only otherwise break away from spirit of the present invention, all in protection scope of the present invention.
Claims (3)
1. testing equipment power supply change-over circuit, it is characterized in that: comprise surface power supply power supply and carrier power supply, the power control switch of testing equipment is connected with surface power supply power supply and carrier power supply respectively at two switch gears, and the power control switch of described testing equipment is by the gear switch of the second Control realization between surface power supply power supply and carrier power supply.
2. testing equipment power supply change-over circuit according to claim 1, it is characterized in that: also comprise the 3rd relay, the high potential input of the 3rd relay is for turning the electric control signal circuit, the low potential end of the 3rd relay is earth terminal, one end of the control circuit of the 3rd relay and carrier power supply are connected, the other end is realized being switched on or switched off with the second relay by its driving switch of the 3rd Control as the high potential input of the second relay, the low potential end of the second relay is earth terminal, after the second relay was connected, the driving switch of its control circuit switched to the carrier power supply and connects.
3. testing equipment power supply change-over circuit according to claim 1 is characterized in that: also comprise the first relay, described the first relay with the surface power supply power supply as the high potential input, take earth terminal as the low potential end; The control circuit of described the first relay with turn electricity and be ready to signal circuit and be communicated with, when the first relay not when electric, turn that electricity is ready to the control circuit of signal circuit by the first relay and the connection of the second relay and as the high potential input of the second relay, when the first relay gets when electric, the control circuit of the first relay is broken into neutral gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210528407.2A CN103036303B (en) | 2012-12-10 | 2012-12-10 | Power supply switching circuit of test equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210528407.2A CN103036303B (en) | 2012-12-10 | 2012-12-10 | Power supply switching circuit of test equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103036303A true CN103036303A (en) | 2013-04-10 |
| CN103036303B CN103036303B (en) | 2015-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210528407.2A Active CN103036303B (en) | 2012-12-10 | 2012-12-10 | Power supply switching circuit of test equipment |
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| CN (1) | CN103036303B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104505929A (en) * | 2014-12-08 | 2015-04-08 | 中国运载火箭技术研究院 | Multi-bus reliable power switching and disconnecting circuit of aircraft |
| CN105656304A (en) * | 2016-02-18 | 2016-06-08 | 江西洪都航空工业集团有限责任公司 | Method for inhibiting conducted emission of PWM power supply wire by adopting time sequence isolation |
| CN105738657A (en) * | 2016-02-18 | 2016-07-06 | 江西洪都航空工业集团有限责任公司 | Aircraft measurement and control system automatic power supply device |
| CN112786384A (en) * | 2021-02-04 | 2021-05-11 | 湖北三江航天红峰控制有限公司 | Missile-borne switching-off control device based on electromagnetic relay |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07274400A (en) * | 1992-02-18 | 1995-10-20 | Molex Inc | Automatic switching power circuit |
| CN101585415A (en) * | 2009-06-12 | 2009-11-25 | 四川华盛强航空地面设备有限公司 | Dual power source driving system of aviation ground equipment |
| CN102738866A (en) * | 2012-06-18 | 2012-10-17 | 航天东方红卫星有限公司 | Satellite storage battery pack control circuit with ground emergency power-off protection function |
-
2012
- 2012-12-10 CN CN201210528407.2A patent/CN103036303B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07274400A (en) * | 1992-02-18 | 1995-10-20 | Molex Inc | Automatic switching power circuit |
| CN101585415A (en) * | 2009-06-12 | 2009-11-25 | 四川华盛强航空地面设备有限公司 | Dual power source driving system of aviation ground equipment |
| CN102738866A (en) * | 2012-06-18 | 2012-10-17 | 航天东方红卫星有限公司 | Satellite storage battery pack control circuit with ground emergency power-off protection function |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104505929A (en) * | 2014-12-08 | 2015-04-08 | 中国运载火箭技术研究院 | Multi-bus reliable power switching and disconnecting circuit of aircraft |
| CN105656304A (en) * | 2016-02-18 | 2016-06-08 | 江西洪都航空工业集团有限责任公司 | Method for inhibiting conducted emission of PWM power supply wire by adopting time sequence isolation |
| CN105738657A (en) * | 2016-02-18 | 2016-07-06 | 江西洪都航空工业集团有限责任公司 | Aircraft measurement and control system automatic power supply device |
| CN105656304B (en) * | 2016-02-18 | 2018-10-12 | 江西洪都航空工业集团有限责任公司 | A method of it is isolated using sequential and inhibits PWM power cord conducted emissions |
| CN112786384A (en) * | 2021-02-04 | 2021-05-11 | 湖北三江航天红峰控制有限公司 | Missile-borne switching-off control device based on electromagnetic relay |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103036303B (en) | 2015-05-27 |
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