CN204157136U - A kind of photo resistance based on multivibrator regulates LED automatically - Google Patents
A kind of photo resistance based on multivibrator regulates LED automatically Download PDFInfo
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- CN204157136U CN204157136U CN201420652107.XU CN201420652107U CN204157136U CN 204157136 U CN204157136 U CN 204157136U CN 201420652107 U CN201420652107 U CN 201420652107U CN 204157136 U CN204157136 U CN 204157136U
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Abstract
The utility model discloses a kind of photo resistance based on multivibrator and automatically regulate LED, comprise resistance, photo resistance, first triode, second triode, electric capacity, power supply and light-emitting diode, wherein, the emitter of positive pole respectively with the second triode of described power supply, one end of resistance is connected, the other end of resistance respectively with one end of photo resistance, the collector electrode of the first triode, one end of electric capacity is connected, the other end of electric capacity respectively with the positive pole of diode, second transistor collector is connected, the emitter of the other end respectively with the first triode of photo resistance, the negative pole of diode, the negative pole of power supply is connected.The utility model utilizes multivibrator can realize the auto-control of light in conjunction with photo resistance.Circuit is simple, and structure is simple, power consumption is little.
Description
Technical field
The utility model discloses a kind of photo resistance based on multivibrator and automatically regulate LED, relate to circuit control technique field.
Background technology
Astatic multivibrator utilizes degree of depth positive feedback, makes two electronic device alternate conduction and cut-off by resistance-capacitance coupling, thus self-excitation produces the oscillator that square wave exports.Be commonly used for square-wave generator.
Multivibrator is a kind of self-excited oscillator that can produce square wave, also claims square-wave generator." multi resonant " refers in square wave except first-harmonic composition, also containing abundant higher harmonic component.Multivibrator does not have stable state, only has two temporary stable states.Operationally, the state of circuit automatically checker between these two temporary stable states, produces rectangular wave pulse signal thus, is commonly used for the clock signal in pulse signal source and sequence circuit.
Automatically the light circuit regulated in conjunction with photo resistance in prior art is more common, but the circuit realizing signal light control in conjunction with multivibrator is further more rare, meanwhile, the most of complex structure of multivibrator circuit, needs further planning in design with being combined of light-operated circuit.
Utility model content
Technical problem to be solved in the utility model is: for the defect of prior art, provides a kind of photo resistance based on multivibrator automatically to regulate LED, utilizes multivibrator can realize the auto-control of light in conjunction with photo resistance.
The utility model is for solving the problems of the technologies described above by the following technical solutions:
A kind of photo resistance based on multivibrator regulates LED automatically, comprise resistance, photo resistance, first triode, second triode, electric capacity, power supply and light-emitting diode, wherein, the emitter of positive pole respectively with the second triode of described power supply, one end of resistance is connected, the other end of resistance respectively with one end of photo resistance, the collector electrode of the first triode, one end of electric capacity is connected, the other end of electric capacity respectively with the positive pole of diode, second transistor collector is connected, the emitter of the other end respectively with the first triode of photo resistance, the negative pole of diode, the negative pole of power supply is connected.
As further preferred version of the present utility model, described first triode is silicon NPN triode, and model is 9011, and Beta is greater than 100.
As further preferred version of the present utility model, described second triode is germanium PNP triode, and model is 3AX31B, and Beta is greater than 30.
As further preferred version of the present utility model, the model of described photo resistance is MG45.
As further preferred version of the present utility model, described resistance is RTX-1/8W type carbon film resistor.
As further preferred version of the present utility model, described electric capacity is CD11-10V electrolytic capacitor.
As further preferred version of the present utility model, the operating voltage of described power supply is 3 volts.
The utility model adopts above technical scheme compared with prior art, has following technique effect: utilize multivibrator can realize the auto-control of light in conjunction with photo resistance.Circuit is simple, and structure is simple, power consumption is little.
Accompanying drawing explanation
Fig. 1 is circuit connection diagram of the present utility model,
Wherein: R is resistance, R
gfor photo resistance, VT1, VT2 are respectively first, second triode, and C is electric capacity, and G is power supply, and D is light-emitting diode.
Embodiment
Be described below in detail execution mode of the present utility model, the example of described execution mode is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the execution mode be described with reference to the drawings, only for explaining the utility model, and can not being interpreted as restriction of the present utility model.
Those skilled in the art of the present technique are understandable that, the correlation module related in the utility model and the function of realization thereof are the devices of hardware after improvement and formation thereof, device or system carry computer software programs conventional in prior art or pertinent protocols just can realize, and are not improve computer software programs of the prior art or pertinent protocols.Such as, the computer hardware system after improvement still can realize the specific function of this hardware system by loading existing operation system of software.Therefore, be understandable that, innovation of the present utility model is the improvement of hardware module in prior art and connects syntagmatic, but not be only in hardware module for realizing the improvement of software or the agreement of carrying about function.
Those skilled in the art of the present technique are understandable that, the correlation module mentioned in the utility model is the one or more hardware device for performing in step in operation, method, flow process described in the application, measure, scheme.Described hardware device for required object and specialized designs and manufacture, or also can adopt the known device in all-purpose computer or other known hardware devices.Described all-purpose computer activates or reconstructs with having storage procedure Selection within it.
Those skilled in the art of the present technique are appreciated that unless expressly stated, and singulative used herein " ", " one ", " described " and " being somebody's turn to do " also can comprise plural form.Should be further understood that, the wording used in specification of the present utility model " comprises " and refers to there is described feature, integer, step, operation, element and/or assembly, but does not get rid of and exist or add other features one or more, integer, step, operation, element, assembly and/or their group.Should be appreciated that, when we claim element to be " connected " or " coupling " to another element time, it can be directly connected or coupled to other elements, or also can there is intermediary element.In addition, " connection " used herein or " coupling " can comprise wireless connections or couple.Wording "and/or" used herein comprises one or more arbitrary unit listing item be associated and all combinations.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, and all terms used herein (comprising technical term and scientific terminology) have the meaning identical with the general understanding of the those of ordinary skill in field belonging to the utility model.Should also be understood that those terms defined in such as general dictionary should be understood to have the meaning consistent with the meaning in the context of prior art, unless and define as here, can not explain by idealized or too formal implication.
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail:
Circuit connection diagram of the present utility model as shown in Figure 1, the described photo resistance based on multivibrator regulates LED automatically, comprise resistance, photo resistance, first triode, second triode, electric capacity, power supply and light-emitting diode, wherein, the emitter of positive pole respectively with the second triode of described power supply, one end of resistance is connected, the other end of resistance respectively with one end of photo resistance, the collector electrode of the first triode, one end of electric capacity is connected, the other end of electric capacity respectively with the positive pole of diode, second transistor collector is connected, the emitter of the other end respectively with the first triode of photo resistance, the negative pole of diode, the negative pole of power supply is connected.
As further preferred version of the present utility model, described first triode is silicon NPN triode, and model is 9011, and Beta is greater than 100.
As further preferred version of the present utility model, described second triode is germanium PNP triode, and model is 3AX31B, and Beta is greater than 30.
As further preferred version of the present utility model, the model of described photo resistance is MG45.
As further preferred version of the present utility model, described resistance is RTX-1/8W type carbon film resistor.
As further preferred version of the present utility model, described electric capacity is CD11-10V electrolytic capacitor.
As further preferred version of the present utility model, the operating voltage of described power supply is 3 volts.
Operation principle: triode VT1 and VT2 forms complementary type astatic multivibrator, and oscillatory feedback network is made up of electric capacity C.The base bias circuit of VT1 is by resistance R and photo-resistor R
gcommon formation.Daytime, indoor light was comparatively strong, R
gby strong illumination in low resistance, VT1 base stage is in low level, and VT1 and VT2 is all in cut-off state, and LED is not luminous.In evening, indoor light is more weak, photo-resistor R
gresistance raises, and VT1 base potential rises, and when rising to about 0.65V, oscillator is started working, the conducting of VT2 interval and cut-off, and LED will by frequency of oscillation flashing.VT1 with 9011 triodes such as NPN such as silicon such as grade, can require Beta β >=100; VT2 adopts the germanium PNP triode such as 3AX31B, and β value is greater than 30.LED likes depending on each one, can adopt redness or green circular light emitting diode.
Components and parts are selected: RG adopts the photo resistance of MG45 type, require that bright resistance differs with resistance in the dark more better.R RTX-1/8W type carbon film resistor.C CD11-10V electrolytic capacitor.Power supply G two joints No. 5 batteries.
By reference to the accompanying drawings execution mode of the present utility model is explained in detail above, but the utility model is not limited to above-mentioned execution mode, in the ken that those of ordinary skill in the art possess, can also make a variety of changes under the prerequisite not departing from the utility model aim.The above, it is only preferred embodiment of the present utility model, not any pro forma restriction is done to the utility model, although the utility model discloses as above with preferred embodiment, but and be not used to limit the utility model, any those skilled in the art, do not departing within the scope of technical solutions of the utility model, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be do not depart from technical solutions of the utility model content, according to technical spirit of the present utility model, within spirit of the present utility model and principle, to any simple amendment that above embodiment is done, equivalent replacement and improvement etc., within the protection range all still belonging to technical solutions of the utility model.
Claims (7)
1. the photo resistance based on multivibrator regulates a LED automatically, it is characterized in that: comprise resistance, photo resistance, the first triode, the second triode, electric capacity, power supply and light-emitting diode, wherein,
The emitter of positive pole respectively with the second triode, one end of resistance of described power supply are connected, the other end of resistance is connected with one end of photo resistance, the collector electrode of the first triode, one end of electric capacity respectively, the other end of electric capacity is connected with the positive pole of diode, the second transistor collector respectively, and the emitter of the other end respectively with the first triode of photo resistance, the negative pole of diode, the negative pole of power supply are connected.
2. a kind of photo resistance based on multivibrator regulates LED automatically as claimed in claim 1, it is characterized in that: described first triode is silicon NPN triode, and model is 9011, and Beta is greater than 100.
3. a kind of photo resistance based on multivibrator regulates LED automatically as claimed in claim 1 or 2, it is characterized in that: described second triode is germanium PNP triode, and model is 3AX31B, and Beta is greater than 30.
4. a kind of photo resistance based on multivibrator regulates LED automatically as claimed in claim 3, it is characterized in that: the model of described photo resistance is MG45.
5. a kind of photo resistance based on multivibrator regulates LED automatically as claimed in claim 4, it is characterized in that: described resistance is RTX-1/8W type carbon film resistor.
6. a kind of photo resistance based on multivibrator regulates LED automatically as claimed in claim 5, it is characterized in that: described electric capacity is CD11-10V electrolytic capacitor.
7. a kind of photo resistance based on multivibrator regulates LED automatically as claimed in claim 6, it is characterized in that: the operating voltage of described power supply is 3 volts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420652107.XU CN204157136U (en) | 2014-11-04 | 2014-11-04 | A kind of photo resistance based on multivibrator regulates LED automatically |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420652107.XU CN204157136U (en) | 2014-11-04 | 2014-11-04 | A kind of photo resistance based on multivibrator regulates LED automatically |
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| CN204157136U true CN204157136U (en) | 2015-02-11 |
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| CN201420652107.XU Expired - Fee Related CN204157136U (en) | 2014-11-04 | 2014-11-04 | A kind of photo resistance based on multivibrator regulates LED automatically |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104684221A (en) * | 2015-03-13 | 2015-06-03 | 吴建堂 | Warning lamp for municipal road construction |
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2014
- 2014-11-04 CN CN201420652107.XU patent/CN204157136U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104684221A (en) * | 2015-03-13 | 2015-06-03 | 吴建堂 | Warning lamp for municipal road construction |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150211 Termination date: 20171104 |