CN202257585U - Switching holding control circuit - Google Patents
Switching holding control circuit Download PDFInfo
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- CN202257585U CN202257585U CN2011203675068U CN201120367506U CN202257585U CN 202257585 U CN202257585 U CN 202257585U CN 2011203675068 U CN2011203675068 U CN 2011203675068U CN 201120367506 U CN201120367506 U CN 201120367506U CN 202257585 U CN202257585 U CN 202257585U
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Abstract
The utility model relates to a switching control circuit, in particular to a switching holding control circuit, which comprises a transfer switch used for controlling two sets of equipment to run alternately, a first power supply circuit and a second power supply circuit, wherein the first and second power supply circuits are connected in parallel; the output end of the first power supply circuit is used for connecting the power input end of first equipment; the output end of the second power supply circuit is used for connecting the power input end of second equipment; and the transfer switch is selectively connected in series between a power supply and the power input end of the first or second power supply circuit. The switching holding control circuit adopts a simple principle, and is easy to implement. The operating and non-operating states of a plurality of pieces of equipment such as a hard disk of a notebook computer, a third-generation (3G) wireless module and the like can be controlled by rationally utilizing the output of electronic switches, the two pieces of equipment can run independently without influencing each other to isolate the operating states of the equipment, data cross and information leakage are avoided, and the requirements for confidentiality in work are met.
Description
Technical field
The utility model relates to a kind of control switching circuit, relates in particular to a kind of switching retentive control circuit.
Background technology
At present; The develop rapidly of electronic technology; For informationization, the robotization of all trades and professions makes a great contribution, in the field of electric control of industry-by-industry, emerge in an endless stream especially according to the various requirement development product; And two identical equipment that same power supply can occur using need the situation of alternate run, must guarantee when one of them equipment operation that promptly another equipment does not move.Especially in concerning security matters industries such as finance, government, military affairs, electric power, confidentiality requires high, therefore generally is provided with information Intranet and information outer net; And must isolate for need the information Intranet and the information outer net of maintaining secrecy; Two hard disks so just need be set, and wherein one is used for the information Intranet, and another piece is used for the information outer net; When the hard disk of requirement information Intranet moved, the hard disk of information outer net can not move; The hard disk of information outer net is when operation, and the hard disk of information Intranet can not move, and therefore needs the operation of special two hard disks of circuit control.
The utility model content
The purpose of the utility model provides the switching retentive control circuit of two identical equipment alternate runs of a kind of control.
For achieving the above object, the utility model adopts following technical proposals:
A kind of switching retentive control circuit; Comprise the change-over switch, first feed circuit and second feed circuit that are used to control two equipment alternate runs; Said first feed circuit are parallelly connected with second feed circuit; The output terminal of first feed circuit is used to connect the power input of first equipment, and the output terminal of second feed circuit is used to connect the power input of second equipment, and said change-over switch is selected to be serially connected between the power input of power supply and first feed circuit or second feed circuit.
Said first feed circuit comprise first electronic switch, first disconnector that is used to isolate second feed circuit that is used to lock the first feed circuit power supply state, first CS that is used to drive first driving switch of first electronic switch startup and is used to start first consumer; Said second feed circuit comprise second electronic switch, second disconnector that is used to isolate first feed circuit that is used to lock the second feed circuit power supply state, second CS that is used to drive second driving switch of second electronic switch startup and is used to start second consumer; The output terminal of said first driving switch connects the input end of first electronic switch; The output terminal of first electronic switch connects the input end of first CS and first disconnector respectively, and the output terminal of first disconnector connects the input end of second driving switch; The output terminal of said second driving switch connects the input end of second electronic switch, and the output terminal of second electronic switch connects the input end of second CS and second disconnector, and the output terminal of second disconnector connects the input end of first driving switch.
Said change-over switch is a single-pole double-throw switch (SPDT); Said first driving switch, second driving switch, first electronic switch, second electronic switch are respectively first optocoupler, second optocoupler, the 4th optocoupler, the 3rd optocoupler, and said first disconnector, first CS, second disconnector, second CS are respectively first metal-oxide-semiconductor, the 4th metal-oxide-semiconductor, second metal-oxide-semiconductor, the 3rd metal-oxide-semiconductor; The common end grounding of said change-over switch; The anode of light emitting diode connects power supply in first optocoupler; The negative electrode of light emitting diode connects first termination of change-over switch in first optocoupler, and the emitter of phototriode connects the anode of light emitting diode in the 4th optocoupler in first optocoupler, also connects the emitter of phototriode in the 4th optocoupler simultaneously; The negative electrode of light emitting diode connects the grid of first metal-oxide-semiconductor, the grid and the ground of the 4th metal-oxide-semiconductor respectively in said the 4th optocoupler; The drain electrode of said first metal-oxide-semiconductor connects the anode of light emitting diode in second optocoupler, the source ground of the source electrode of first metal-oxide-semiconductor and the 4th metal-oxide-semiconductor, and the drain electrode of said the 4th metal-oxide-semiconductor connects power supply; The drain electrode of the 4th metal-oxide-semiconductor simultaneously also is used to connect the power input of first equipment, and the collector of phototriode is connected power supply jointly in first optocoupler and the 4th optocoupler; The anode of light emitting diode connects power supply in said second optocoupler; The negative electrode of light emitting diode connects second termination of change-over switch in second optocoupler; The emitter of phototriode connects the anode of light emitting diode in the 3rd optocoupler in second optocoupler; The emitter that also connects phototriode in the 3rd optocoupler simultaneously, the negative electrode of light emitting diode connects the grid of second metal-oxide-semiconductor, the grid and the ground of the 3rd metal-oxide-semiconductor respectively in said the 3rd optocoupler, and the drain electrode of said second metal-oxide-semiconductor connects the anode of light emitting diode in first optocoupler; The source ground of the source electrode of second metal-oxide-semiconductor and the 3rd metal-oxide-semiconductor; The drain electrode of the 3rd metal-oxide-semiconductor connects power supply, and the drain electrode of the 3rd metal-oxide-semiconductor simultaneously also is used to connect the power input of second equipment, and the collector of phototriode is connected power supply jointly in second optocoupler and the 3rd optocoupler.
Be serially connected with first resistance between the anode of light emitting diode and the power supply in said first optocoupler; In the 4th optocoupler between the grid of the negative electrode of light emitting diode and first metal-oxide-semiconductor, between the grid of the 4th metal-oxide-semiconductor, and be serially connected with the 3rd resistance, the 6th resistance, the 9th resistance between the ground respectively; Be serially connected with second resistance in second optocoupler between the anode of light emitting diode and the power supply; In the 3rd optocoupler between the grid of the negative electrode of light emitting diode and second metal-oxide-semiconductor, between the grid of the 3rd metal-oxide-semiconductor and be serially connected with the 4th resistance, the 5th resistance, the tenth resistance between the ground respectively; Be serially connected with the 7th resistance between the drain electrode of the 3rd metal-oxide-semiconductor and the power supply, be serially connected with the 8th resistance between the drain electrode of the 4th metal-oxide-semiconductor and the power supply.
Adopt above technological means, the utility model can reach following technique effect:
The utility model is provided with change-over switch, can control the conducting of first feed circuit and second feed circuit by change-over switch, thereby can control the operation of first equipment and second equipment; Be provided with the switch of isolating second feed circuit in first feed circuit; Second feed circuit are provided with the switch of isolating first feed circuit, and therefore first equipment and second equipment move independently, promptly during first equipment operation; Second equipment is locked in the state that does not move; Realized the demand of work, especially for concerning security matters industries such as finance, government, military affairs, electric power, can guarantee information Intranet hard disk and the independent operating of information outer net hard disk.
Description of drawings
Fig. 1 is the circuit theory diagrams of the utility model.
Embodiment
As shown in Figure 1: as to comprise the change-over switch, first feed circuit and second feed circuit that are used to control two equipment alternate runs; Said first feed circuit are parallelly connected with second feed circuit; The output terminal of first feed circuit is used to connect the power input of first equipment; The output terminal of second feed circuit is used to connect the power input of second equipment, and said change-over switch is selected to be serially connected between the power input of power supply and first feed circuit or second feed circuit.
Said change-over switch K is a single-pole double-throw switch (SPDT), the common end grounding of change-over switch K; Said first feed circuit comprise first electronic switch, first disconnector that is used to isolate second feed circuit that is used to lock the first feed circuit power supply state, first CS that is used to drive first driving switch of first electronic switch startup and is used to start first consumer; Said second feed circuit comprise second electronic switch, second disconnector that is used to isolate first feed circuit that is used to lock the second feed circuit power supply state, second CS that is used to drive second driving switch of second electronic switch startup and is used to start second consumer.The output terminal of said first driving switch connects the input end of first electronic switch; The output terminal of first electronic switch connects the input end of first CS; The output terminal of first CS connects the input end of first disconnector, and the output terminal of first buffer circuit connects the input end of second driving switch; The output terminal of said second driving switch connects the input end of second electronic switch, and the output terminal of second electronic switch connects the input end of second CS and second disconnector, and the output terminal of second disconnector connects the input end of first driving switch.
First driving switch described in the present embodiment, second driving switch, first electronic switch, second electronic switch are respectively the first optocoupler GO1, the second optocoupler GO2, the 4th optocoupler GO4, the 3rd optocoupler GO3, and said first disconnector, first CS, second disconnector, second CS are respectively the first metal-oxide-semiconductor Q1, the 4th metal-oxide-semiconductor Q4, the second metal-oxide-semiconductor Q2, the 3rd metal-oxide-semiconductor Q3.The anode of light emitting diode connects power supply through first resistance R 1 among the said first optocoupler GO1; The negative electrode of light emitting diode connects first termination of change-over switch K among the first optocoupler GO1; The emitter of phototriode connects the anode of light emitting diode among the 4th optocoupler GO4 among the first optocoupler GO1, also connects the emitter of phototriode among the 4th optocoupler GO4 simultaneously; The negative electrode of light emitting diode connects the grid of the first metal-oxide-semiconductor Q1, grid and the ground of the 4th metal-oxide-semiconductor Q4 through the 3rd resistance R 3, the 6th resistance R 6, the 9th resistance R 9 respectively among said the 4th optocoupler GO4; The drain electrode of the said first metal-oxide-semiconductor Q1 connects the anode of light emitting diode among the second optocoupler GO2; The source ground of the first metal-oxide-semiconductor Q21; The drain electrode of said the 4th metal-oxide-semiconductor Q4 connects power supply through the 8th resistance R 8; The drain electrode of the 4th metal-oxide-semiconductor Q4 simultaneously also is used to connect the power input of first equipment, and the collector of phototriode is connected power supply jointly in the source ground of the 4th metal-oxide-semiconductor Q4, the said first optocoupler GO1 and the 4th optocoupler GO4; The anode of light emitting diode connects power supply through second resistance R 2 among the said second optocoupler GO2; The negative electrode of light emitting diode connects second termination of change-over switch K among the second optocoupler GO2; The emitter of phototriode connects the anode of light emitting diode among the 3rd optocoupler GO3 among the second optocoupler GO2; The emitter that also connects GO3 phototriode in the 3rd optocoupler simultaneously; The negative electrode of light emitting diode connects the grid of the second metal-oxide-semiconductor Q2, grid and the ground of the 3rd metal-oxide-semiconductor Q3 through the 4th resistance R 4, the 5th resistance R 5, the tenth resistance R 10 respectively among said the 3rd optocoupler GO3, and the drain electrode of the said second metal-oxide-semiconductor Q2 connects the anode of light emitting diode among the first optocoupler GO1, the source ground of the second metal-oxide-semiconductor Q2; The drain electrode of the 3rd metal-oxide-semiconductor Q3 connects power supply through the 7th resistance R 7; The drain electrode of the 3rd metal-oxide-semiconductor Q3 simultaneously also is used to connect the power input of second equipment, and the collector of phototriode is connected power supply jointly in the source ground of the 3rd metal-oxide-semiconductor Q3, the second optocoupler GO2 and the 3rd optocoupler GO3.
The first optocoupler GO1 of the utility model, the 4th optocoupler GO4 and the 9th resistance R 9 are formed one from lock unit, and the second optocoupler GO2, the 3rd optocoupler GO3 and the tenth resistance R 10 are formed another from lock unit.When using first equipment, make first termination of the common port connection change-over switch K of change-over switch K, at this moment; First optocoupler GO1 energising, the conducting of the first optocoupler GO1 directly makes the 4th optocoupler GO4 conducting, and the conducting of the 4th optocoupler GO4 makes on the 9th resistance R 9 and obtains bias voltage; Therefore, in case the 4th optocoupler GO4 conducting, its state does not just receive the influence of the open and-shut mode of external switch; Promptly the 4th optocoupler GO4 can keep the state of conducting always, thereby the self-locking of first feed circuit is kept function, connects the drain electrode of the 4th metal-oxide-semiconductor Q4 owing to the negative electrode of light emitting diode among the 4th optocoupler GO4; Therefore in case the 4th optocoupler GO4 saturation conduction; The 4th metal-oxide-semiconductor Q4 is with regard to conducting, and the drain electrode of the 4th metal-oxide-semiconductor Q4 connects the power input of first equipment, and the conducting of such the 4th metal-oxide-semiconductor Q4 makes first equipment operation; First equipment also just keeps the state of energising operation always, realizes the self-locking of first feed circuit; The voltage triggered first metal-oxide-semiconductor Q1 on while the 9th resistance R 9; Make the first metal-oxide-semiconductor Q1 get into the saturation conduction state, make the input voltage of the second optocoupler GO2 approach 0, even therefore stir change-over switch K; The input of the second optocoupler GO2 and the 3rd optocoupler GO3 is also by short circuit; The 3rd metal-oxide-semiconductor Q3 conducting that can't be triggered, second equipment also just can't move, and has realized the locking of first feed circuit to second feed circuit.This moment, first equipment did not move if want second equipment operation, need system cut-off after; The common port of change-over switch K is toggled it to connection second termination, second optocoupler GO2 conducting this moment, the conducting of the second optocoupler GO2 can make the 3rd optocoupler GO3 conducting equally; The tenth resistance R 10 is because the conducting of the 3rd optocoupler GO3 obtains bias voltage equally, therefore, in case the 3rd optocoupler GO3 conducting; Its state does not receive the influence of the open and-shut mode of external switch yet, and promptly the 3rd optocoupler GO3 can keep the state of conducting always, thereby second feed circuit are realized that self-locking keeps; Because the negative electrode of light emitting diode connects the drain electrode of the 3rd metal-oxide-semiconductor Q3 among the 3rd optocoupler GO3; Therefore need only the 3rd optocoupler GO3 and keep conducting state the 3rd metal-oxide-semiconductor Q3 just to keep conducting, and the drain electrode of the 3rd metal-oxide-semiconductor Q3 connects the power input of first equipment, the conducting of such the 3rd metal-oxide-semiconductor Q3 makes second equipment operation; Second equipment also just keeps the state of energising operation always, realizes the self-locking of second feed circuit; The voltage triggered second metal-oxide-semiconductor Q2 on while the tenth resistance R 10; Make the second metal-oxide-semiconductor Q2 get into state of saturation, the saturation conduction of such second metal-oxide-semiconductor Q2 makes the input pressure drop of the optocoupler GO1 that wins approach 0, even therefore stir change-over switch K; The input of the first optocoupler GO1 and the 4th optocoupler GO4 is also by short circuit; The 4th metal-oxide-semiconductor Q4 conducting that can't be triggered, first equipment also just can't move, and has realized the locking of second feed circuit to first feed circuit.
The utility model circuit theory simply, very easily realizes; Through rationally utilizing the output of these electronic switches; Can control the work and the off working state of many equipment (for example notebook hard disk, 3G wireless module etc.), two complete equipments are moved independently, realize the equipment working state isolation; Avoid data cross and information leakage; Satisfied the privacy requirements in the work, especially needed information Intranet and information outer net, can use the utility model control information Intranet hard disk and information outer net hard disk to realize maintaining secrecy top secret data in concerning security matters industries such as finance, government, military affairs, electric power.
Claims (4)
1. one kind switches the retentive control circuit; It is characterized in that: comprise the change-over switch, first feed circuit and second feed circuit that are used to control two equipment alternate runs; Said first feed circuit are parallelly connected with second feed circuit; The output terminal of first feed circuit is used to connect the power input of first equipment; The output terminal of second feed circuit is used to connect the power input of second equipment, and said change-over switch is selected to be serially connected between the power input of power supply and first feed circuit or second feed circuit.
2. switching retentive control circuit according to claim 1; It is characterized in that: said first feed circuit comprise first electronic switch, first disconnector that is used to isolate second feed circuit that is used to lock the first feed circuit power supply state, first CS that is used to drive first driving switch of first electronic switch startup and is used to start first consumer; Said second feed circuit comprise second electronic switch, second disconnector that is used to isolate first feed circuit that is used to lock the second feed circuit power supply state, second CS that is used to drive second driving switch of second electronic switch startup and is used to start second consumer; The output terminal of said first driving switch connects the input end of first electronic switch; The output terminal of first electronic switch connects the input end of first CS and first disconnector respectively; The output terminal of first disconnector connects the input end of second driving switch; The output terminal of said second driving switch connects the input end of second electronic switch; The output terminal of second electronic switch connects the input end of second CS and second disconnector, and the output terminal of second disconnector connects the input end of first driving switch.
3. switching retentive control circuit according to claim 2 is characterized in that: said change-over switch is a single-pole double-throw switch (SPDT); Said first driving switch, second driving switch, first electronic switch, second electronic switch are respectively first optocoupler, second optocoupler, the 4th optocoupler, the 3rd optocoupler, and said first disconnector, first CS, second disconnector, second CS are respectively first metal-oxide-semiconductor, the 4th metal-oxide-semiconductor, second metal-oxide-semiconductor, the 3rd metal-oxide-semiconductor; The common end grounding of said change-over switch; The anode of light emitting diode connects power supply in first optocoupler; The negative electrode of light emitting diode connects first termination of change-over switch in first optocoupler, and the emitter of phototriode connects the anode of light emitting diode in the 4th optocoupler in first optocoupler, also connects the emitter of phototriode in the 4th optocoupler simultaneously; The negative electrode of light emitting diode connects the grid of first metal-oxide-semiconductor, the grid and the ground of the 4th metal-oxide-semiconductor respectively in said the 4th optocoupler; The drain electrode of said first metal-oxide-semiconductor connects the anode of light emitting diode in second optocoupler, the source ground of the source electrode of first metal-oxide-semiconductor and the 4th metal-oxide-semiconductor, and the drain electrode of said the 4th metal-oxide-semiconductor connects power supply; The drain electrode of the 4th metal-oxide-semiconductor simultaneously also is used to connect the power input of first equipment, and the collector of phototriode is connected power supply jointly in first optocoupler and the 4th optocoupler; The anode of light emitting diode connects power supply in said second optocoupler; The negative electrode of light emitting diode connects second termination of change-over switch in second optocoupler; The emitter of phototriode connects the anode of light emitting diode in the 3rd optocoupler in second optocoupler; The emitter that also connects phototriode in the 3rd optocoupler simultaneously, the negative electrode of light emitting diode connects the grid of second metal-oxide-semiconductor, the grid and the ground of the 3rd metal-oxide-semiconductor respectively in said the 3rd optocoupler, and the drain electrode of said second metal-oxide-semiconductor connects the anode of light emitting diode in first optocoupler; The source ground of the source electrode of second metal-oxide-semiconductor and the 3rd metal-oxide-semiconductor; The drain electrode of the 3rd metal-oxide-semiconductor connects power supply, and the drain electrode of the 3rd metal-oxide-semiconductor simultaneously also is used to connect the power input of second equipment, and the collector of phototriode is connected power supply jointly in second optocoupler and the 3rd optocoupler.
4. switching retentive control circuit according to claim 3; It is characterized in that: be serially connected with first resistance between the anode of light emitting diode and the power supply in said first optocoupler; In the 4th optocoupler between the grid of the negative electrode of light emitting diode and first metal-oxide-semiconductor, between the grid of the 4th metal-oxide-semiconductor, and be serially connected with the 3rd resistance, the 6th resistance, the 9th resistance between the ground respectively; Be serially connected with second resistance in second optocoupler between the anode of light emitting diode and the power supply; In the 3rd optocoupler between the grid of the negative electrode of light emitting diode and second metal-oxide-semiconductor, between the grid of the 3rd metal-oxide-semiconductor and be serially connected with the 4th resistance, the 5th resistance, the tenth resistance between the ground respectively; Be serially connected with the 7th resistance between the drain electrode of the 3rd metal-oxide-semiconductor and the power supply, be serially connected with the 8th resistance between the drain electrode of the 4th metal-oxide-semiconductor and the power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203675068U CN202257585U (en) | 2011-09-30 | 2011-09-30 | Switching holding control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203675068U CN202257585U (en) | 2011-09-30 | 2011-09-30 | Switching holding control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202257585U true CN202257585U (en) | 2012-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203675068U Withdrawn - After Issue CN202257585U (en) | 2011-09-30 | 2011-09-30 | Switching holding control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202257585U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393893A (en) * | 2011-09-30 | 2012-03-28 | 河南腾龙信息工程有限公司 | Switching holding control circuit |
-
2011
- 2011-09-30 CN CN2011203675068U patent/CN202257585U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393893A (en) * | 2011-09-30 | 2012-03-28 | 河南腾龙信息工程有限公司 | Switching holding control circuit |
| CN102393893B (en) * | 2011-09-30 | 2014-03-12 | 河南腾龙信息工程有限公司 | Switching holding control circuit |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120530 Effective date of abandoning: 20140312 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20120530 Effective date of abandoning: 20140312 |