CN203933585U - A kind of simple and easy solid-state relay circuit - Google Patents
A kind of simple and easy solid-state relay circuit Download PDFInfo
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- CN203933585U CN203933585U CN201420258558.5U CN201420258558U CN203933585U CN 203933585 U CN203933585 U CN 203933585U CN 201420258558 U CN201420258558 U CN 201420258558U CN 203933585 U CN203933585 U CN 203933585U
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- resistance
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- state relay
- relay circuit
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Abstract
The utility model provides a kind of simple and easy solid-state relay circuit, for control circuit field, this circuit, for connecting and control load, comprises resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, resistance R 6, transistor VT1, transistor VT2, transistor VT3 and photoelectrical coupler; The utlity model has circuit structure simple, and in use do not produce spark and life-span length a little, in addition, choosing of each element in this circuit is all the element that cost is extremely low, therefore the utility model has solved well solid-state integrated circuit occupy-place in prior art and has been unfavorable for layout and the higher problem of cost.
Description
Technical field
The utility model relates to control circuit field, more specifically, particularly relates to a kind of simple and easy solid-state relay circuit.
Background technology
Solid-state relay (Solid State Relay, abbreviation SSR), is by microelectronic circuit, discrete electronic device, the noncontacting switch that power electronic power device forms.With isolating device, realized the isolation of control end and load end.Small control signal for the input of solid-state relay, reaches direct driving large current load.
In addition, solid-state relay is the contactless electronic beam switch with isolation features, machinery-free contact component in switching process, solid-state relay, except having the function the same with electromagnetic relay, also has logical circuit compatibility, the resistance to resistance to mechanical shock of shaking, installation site is unrestricted, have good moistureproof and mildewproof Corrosion Protection, explosion-proof and prevent that the performance aspect ozone pollution is also splendid, input power is little, highly sensitive, power ratio control is little, and Electro Magnetic Compatibility is good, the low and operating frequency high of noise.
Yet in realizing some simple and easy control circuits, existing solid-state relay is integrated often, it takies certain position, and is unfavorable for using in some integrated circuits, and, if adopt its cost of integrated solid-state relay also often higher.Therefore,, in some integrated circuits, designing a kind of circuit that simply and effectively substitutes solid-state relay is the problem that this area need to solve.
Utility model content
In view of the above, the purpose of this utility model is to provide a kind of simple and easy solid-state relay circuit, for solving the occupy-place of prior art solid-state integrated circuit, is unfavorable for layout and the higher problem of cost.
For achieving the above object and other relevant objects, the utility model provides following technical scheme:
A kind of simple and easy solid-state relay circuit, for connecting and control load, described simple and easy solid-state relay circuit comprises resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, resistance R 6, transistor VT1, transistor VT2, transistor VT3, and photoelectrical coupler, one end of the pin one contact resistance R1 of this photoelectrical coupler, the other end of this resistance R 1 connects control end, the pin two of this photoelectrical coupler connects pin 5 ground connection of this photoelectrical coupler by resistance R 2, pin 5 ground connection of this photoelectrical coupler, the pin 6 of this photoelectrical coupler connects one end of this resistance R 3 and the base stage of transistor VT1 simultaneously, the other end of this resistance R 3 is connected to the collector electrode of this transistor VT1 after by series resistance R4, the grounded emitter of this transistor VT1, the base stage of this transistor VT2 is connected to the collector electrode of this transistor VT1 by resistance R 5, the emitter of this transistor VT2 is connected to the positive pole of power supply and the other end of this resistance R 3 simultaneously, one end of the collector electrode while contact resistance R6 of this transistor VT2 and the base stage of transistor VT3, the other end ground connection of this resistance R 6, the grounded emitter of this transistor VT3, the collector electrode of this transistor VT3 and the positive pole of power supply are connected load as output.
Particularly, in the above simple and easy solid-state relay circuit, the resistance of each resistance is chosen as: the resistance of this resistance R 1 is 330 Ω, the resistance of this resistance R 2 is 220M Ω, the resistance of this resistance R 3 and resistance R 4 is 47k Ω, and the resistance of this resistance R 5 is 10 k Ω, and the resistance of this resistance R 6 is 1 k Ω.
As mentioned above, the utlity model has circuit structure simple, and in use do not produce spark and life-span length a little, in addition, choosing of each element in this circuit is all the element that cost is extremely low, therefore the utility model has solved well solid-state integrated circuit occupy-place in prior art and has been unfavorable for layout and the higher problem of cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the scheme in the utility model embodiment, to be briefly described describing the accompanying drawing of required use in specific embodiment below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those skilled in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the schematic diagram of a kind of simple and easy solid-state relay circuit of the utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present utility model, rather than whole embodiment.Based on embodiment of the present utility model, all other embodiment that those of ordinary skills obtain under the prerequisite of not making creative work, belong to the scope that the utility model is protected.
Please refer to the schematic diagram that Fig. 1 shows a kind of simple and easy solid-state relay circuit of the utility model, as can be seen from this figure, this simple and easy solid-state relay circuit is for connecting and control load, include resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, resistance R 6, transistor VT1, transistor VT2, transistor VT3, and photoelectrical coupler, one end of the pin one contact resistance R1 of this photoelectrical coupler, the other end of this resistance R 1 connects control end, the pin two of this photoelectrical coupler connects pin 5 ground connection of this photoelectrical coupler by resistance R 2, pin 5 ground connection of this photoelectrical coupler, the pin 6 of this photoelectrical coupler connects one end of this resistance R 3 and the base stage of transistor VT1 simultaneously, the other end of this resistance R 3 is connected to the collector electrode of this transistor VT1 after by series resistance R4, the grounded emitter of this transistor VT1, the base stage of this transistor VT2 is connected to the collector electrode of this transistor VT1 by resistance R 5, the emitter of this transistor VT2 is connected to the positive pole of power supply and the other end of this resistance R 3 simultaneously, one end of the collector electrode while contact resistance R6 of this transistor VT2 and the base stage of transistor VT3, the other end ground connection of this resistance R 6, the grounded emitter of this transistor VT3, the collector electrode of this transistor VT3 and the positive pole of power supply are connected load as output.Wherein, to those skilled in the art, should be appreciated that this power supply and control end are basic general knowledge, therefore do not illustrated.
Particularly, in the above simple and easy solid-state relay circuit, the resistance of each resistance is chosen as shown in following table 1:
| Resistance R 1 | Resistance R 2 | Resistance R 3 | Resistance R 4 | Resistance R 5 | Current potential R6 |
| 330Ω | 220MΩ | 47kΩ | 47kΩ | 10 kΩ | 1 kΩ |
Table 1
Further, the operation principle of this circuit is described in conjunction with the design parameter in this table 1, so that those skilled in the art can implement the present invention better, the operation principle of this simple and easy solid-state relay circuit is: when first input signal (SW disconnection), photoelectrical coupler is output not, the base stage of transistor VT1 is high level, thus transistor VT1 conducting; And the base stage of transistor VT2 is low level, not conducting, same also not conducting of transistor VT3, thus load also with regard to no power, otherwise load is switched on energising.
In sum, in addition, choosing of each element in this circuit is all the element that cost is extremely low, therefore the utility model has solved well solid-state integrated circuit occupy-place in prior art and has been unfavorable for layout and the higher problem of cost.So the utility model has effectively overcome various shortcoming of the prior art and tool high industrial utilization.
Claims (6)
1. a simple and easy solid-state relay circuit, for connecting and control load, it is characterized in that, described simple and easy solid-state relay circuit comprises resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, resistance R 6, transistor VT1, transistor VT2, transistor VT3, and photoelectrical coupler, one end of the pin one contact resistance R1 of this photoelectrical coupler, the other end of this resistance R 1 connects control end, the pin two of this photoelectrical coupler connects pin 5 ground connection of this photoelectrical coupler by resistance R 2, pin 5 ground connection of this photoelectrical coupler, the pin 6 of this photoelectrical coupler connects one end of this resistance R 3 and the base stage of transistor VT1 simultaneously, the other end of this resistance R 3 is connected to the collector electrode of this transistor VT1 after by series resistance R4, the grounded emitter of this transistor VT1, the base stage of this transistor VT2 is connected to the collector electrode of this transistor VT1 by resistance R 5, the emitter of this transistor VT2 is connected to the positive pole of power supply and the other end of this resistance R 3 simultaneously, one end of the collector electrode while contact resistance R6 of this transistor VT2 and the base stage of transistor VT3, the other end ground connection of this resistance R 6, the grounded emitter of this transistor VT3, the collector electrode of this transistor VT3 and the positive pole of power supply are connected load as output.
2. simple and easy solid-state relay circuit according to claim 1, is characterized in that, the resistance of this resistance R 1 is 330 Ω.
3. simple and easy solid-state relay circuit according to claim 2, is characterized in that, the resistance of this resistance R 2 is 220M Ω.
4. simple and easy solid-state relay circuit according to claim 2, is characterized in that, the resistance of this resistance R 3 and resistance R 4 is 47k Ω.
5. simple and easy solid-state relay circuit according to claim 2, is characterized in that, the resistance of this resistance R 5 is 10 k Ω.
6. simple and easy solid-state relay circuit according to claim 2, is characterized in that, the resistance of this resistance R 6 is 1 k Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420258558.5U CN203933585U (en) | 2014-05-20 | 2014-05-20 | A kind of simple and easy solid-state relay circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420258558.5U CN203933585U (en) | 2014-05-20 | 2014-05-20 | A kind of simple and easy solid-state relay circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203933585U true CN203933585U (en) | 2014-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420258558.5U Expired - Fee Related CN203933585U (en) | 2014-05-20 | 2014-05-20 | A kind of simple and easy solid-state relay circuit |
Country Status (1)
| Country | Link |
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| CN (1) | CN203933585U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104836560A (en) * | 2015-05-21 | 2015-08-12 | 遵义长征电器防爆设备有限责任公司 | Solid-state relay with energy recycling function |
-
2014
- 2014-05-20 CN CN201420258558.5U patent/CN203933585U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104836560A (en) * | 2015-05-21 | 2015-08-12 | 遵义长征电器防爆设备有限责任公司 | Solid-state relay with energy recycling function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20150520 |
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| EXPY | Termination of patent right or utility model |