CN204906824U - Desk lamp circuit with an automatic light meter based on IC control - Google Patents
Desk lamp circuit with an automatic light meter based on IC control Download PDFInfo
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- CN204906824U CN204906824U CN201520694785.7U CN201520694785U CN204906824U CN 204906824 U CN204906824 U CN 204906824U CN 201520694785 U CN201520694785 U CN 201520694785U CN 204906824 U CN204906824 U CN 204906824U
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Abstract
The utility model provides a desk lamp circuit with an automatic light meter based on IC control, it includes chip IC, chip IC's model is 74LS163, chip IC's first pin is connected with diode D3's positive pole, diode D4's positive pole, triode Q2's collecting electrode, chip IC's third pin, electric capacity C1's one end, resistance R3's one end, photo resistance RG's one end and electric capacity C2's one end respectively, triode Q1's base, power input end VCC and diode D2's positive pole is connected respectively to diode D4's negative pole, bulb H's one end and diode D1's positive pole are connected respectively to diode D3's negative pole, bulb H's the other end input VDD that connects. The utility model discloses have the auto -Turning to light, can discern ambient brightness moreover, the good reliability, control accuracy is also higher.
Description
Technical field
The utility model relates to a kind of lamp control circuit, and especially a kind of automatic brightness-adjusting table lamp circuit controlled based on IC, belongs to electronic technology field.
Background technology
Desk lamp has been one of common equipment of huge numbers of families, and it helps people while night realizes illumination, too increases the attractive in appearance of decoration.Along with the progress of science and technology, existing current desk lamp design is also ever-changing, and some outward appearances are peculiar, and some technicalization degree are high.In routine use, it is found that, for different status requirements, required desk lamp brightness is different, such as, when working at night, needs brightness higher; In bed during recumbency rest, light needs more dim.But, the current design for desk lamp still rests on mostly turns on light and turns off the light on two gears, therefore the brightness of desk lamp is caused to be fixing, make the comfort level of people bad like this, even if some desk lamps devise the gear of different brightness, but the setting of its each gear is too inflexible, and must be manual adjustments, very inconvenient when use operates like this.
Utility model content
For above-mentioned deficiency of the prior art, it is weak that main purpose of the present utility model is to solve the existing current regulating power of lamp control circuit to light, and lack the problem of automatic regulation function, and provide a kind of can the automatic brightness-adjusting table lamp circuit controlled based on IC of automatic brightness adjustment lamplight brightness environmentally.
The technical solution of the utility model: a kind of automatic brightness-adjusting table lamp circuit controlled based on IC, it is characterized in that, comprise chip IC, the model of described chip IC is 74LS163; First pin of described chip IC is connected with one end of one end of the 3rd pin of the collector electrode of the positive pole of the positive pole of diode D3, diode D4, triode Q2, chip IC, electric capacity C1, one end of resistance R3, one end of photo resistance RG and electric capacity C2 respectively; The negative pole base stage of connecting triode Q1, the positive pole of power input VCC and diode D2 respectively of described diode D4, negative pole one end of connection bulb H and the positive pole of diode D1 respectively of described diode D3, the other end of described bulb H connects power input VDD; The negative pole of described diode D1 connects the negative pole of diode D2 and one end of resistance R1 respectively, the other end of resistance R1 connects one end of slide rheostat RP and one end of resistance R2 respectively, the sliding contact of described slide rheostat RP is connected between resistance R1 and resistance R2, and the other end of described slide rheostat RP connects one end of neon bulb N, the negative pole of diode D5 and the other end of electric capacity C1 respectively; The other end of described neon bulb N is connected to the control pole of controllable silicon VS, and the negative electrode of described controllable silicon VS is connected on the 4th pin of chip IC, and the anode of controllable silicon VS is connected with the negative pole of diode D2; The positive pole of described diode D5 is connected with the other end of resistance R2 and one end of switch S respectively, and the first joint of the described switch S other end is connected with the other end of photo resistance RG, and the second joint of the described switch S other end is connected with the other end of resistance R3; Be connected to the emitter of triode Q2 after the other end of described electric capacity C2 is connected with resistance R4, the base stage of described triode Q2 is connected with the emitter of triode Q1, and the collector electrode of described triode Q1 is connected on the second pin of chip IC.
Optimally, the model of described neon bulb N is NE-2.
Optimally, the model of described controllable silicon VS is TF541M.
Optimally, the model of described triode Q1 is 3DA87A, and the model of described triode Q2 is 2N3904.
Relative to prior art, the utility model has following beneficial effect:
1, there is the automatic regulation function to light: table lamp circuit of the present utility model is regulated output voltage by IC chip, the object regulating lamplight brightness is reached with this, because the adjustment for whole voltage can complete under linear condition, therefore the brightness regulation for desk lamp also just achieves linear control, and whole process is soft and smooth and easy.
2, can environment-identification brightness: table lamp circuit of the present utility model can environment-identification brightness automatically by photo resistance, like this under dusk and night state, can control the lighting of different brightness automatically, achieve intelligentized control effects, science and technology sense is pure.
3, good reliability, control precision is high, and particularly the power consumption control of integrated circuit obtains very little, and the operating efficiency for circuit is also good lifting, and overall cost is also relatively low, is conducive to the promotion and application of product.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of automatic brightness-adjusting table lamp circuit based on IC control of the utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, a kind of automatic brightness-adjusting table lamp circuit controlled based on IC of the present utility model, comprise chip IC, the model of described chip IC is 74LS163.First pin of described chip IC is connected with one end of one end of the 3rd pin of the collector electrode of the positive pole of the positive pole of diode D3, diode D4, triode Q2, chip IC, electric capacity C1, one end of resistance R3, one end of photo resistance RG and electric capacity C2 respectively.The negative pole base stage of connecting triode Q1, the positive pole of power input VCC and diode D2 respectively of described diode D4, negative pole one end of connection bulb H and the positive pole of diode D1 respectively of described diode D3, the other end of described bulb H connects power input VDD.In the utility model, the model of described triode Q1 is 3DA87A, and the model of described triode Q2 is 2N3904.Described power input VCC and power input VDD represents the two poles of the earth of external power source respectively, and under normal circumstances, can be considered as power input VDD is positive source, and power input VCC is power cathode.The negative pole of described diode D1 connects the negative pole of diode D2 and one end of resistance R1 respectively, the other end of resistance R1 connects one end of slide rheostat RP and one end of resistance R2 respectively, the sliding contact of described slide rheostat RP is connected between resistance R1 and resistance R2, and the other end of described slide rheostat RP connects one end of neon bulb N, the negative pole of diode D5 and the other end of electric capacity C1 respectively; The model of described neon bulb N is NE-2, the other end of neon bulb N is connected to the control pole of controllable silicon VS, the model of described controllable silicon VS is TF541M, and the negative electrode of described controllable silicon VS is connected on the 4th pin of chip IC, and the anode of controllable silicon VS is connected with the negative pole of diode D2; The positive pole of described diode D5 is connected with the other end of resistance R2 and one end of switch S respectively, and the first joint of the described switch S other end is connected with the other end of photo resistance RG, and the second joint of the described switch S other end is connected with the other end of resistance R3; Be connected to the emitter of triode Q2 after the other end of described electric capacity C2 is connected with resistance R4, the base stage of described triode Q2 is connected with the emitter of triode Q1, and the collector electrode of described triode Q1 is connected on the second pin of chip IC.
Circuit working principle:
As shown in Figure 1, when switch S is allocated to joint location 2, it is a common lamp dimmer.In the utility model, slide rheostat RP, electric capacity C1 and neon bulb N form relaxation oscillator, are used for producing pulse-triggered controllable silicon VS.The aura conducting voltage of general neon bulb N is 60-80V, and when electric capacity C1 is charged to glow voltage, the conducting of neon bulb N aura, controllable silicon VS is triggered conducting.Regulate slide rheostat RP can change electric capacity C1 charge rate, thus the angle of flow of controllable silicon VS can be changed, reach the object of light modulation.Resistance R2 and resistance R3 is formed voltage divider and is also charged to electric capacity C1 by diode D5, and the dividing potential drop changing resistance R2 and resistance R3 also can change the angle of flow of controllable silicon VS, and the brightness of bulb H is changed.
When switch S is allocated to joint location 1, photo resistance RG replaces resistance R3, when ambient light is more weak, photo resistance RG presents high resistance, and diode D5 right-hand member current potential raises, and electric capacity C1 charge rate is accelerated, frequency of oscillation uprises, and the controllable silicon VS angle of flow increases, and bulb H both end voltage raises.When ambient light strengthens, photo resistance RG resistance decreasing, contrary to the above, electric light both end voltage step-down, highly reduces.
During debugging, slide rheostat RP being transferred to resistance is zero position, and switch S is placed in joint location 2, and surveying bulb H two ends alternating current with universal instrument should, at more than 200V, as slightly reduced resistance R1 lower than 200V or increase resistance R3 resistance, make it to reach requirement.Photo resistance RG should be arranged on Desk lamp feet side desk lamp light can not the place of direct irradiation, is used for experiencing surrounding environment illumination.Switch S is allocated to joint location 2 for common lamp dimmer, adjusts slide rheostat RP can select suitable high density; Switch S is allocated to joint location 1 for automatic desk lamp, and first adjust slide rheostat RP to choose suitable brightness, time as dimmed in ambient light illumination, desk lamp brightness can brighten gradually, increases illumination.
It should be noted that, above embodiment is only in order to illustrate technical solutions of the utility model but not restriction technologies scheme, although applicant is explained in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, those amendments that technical solutions of the utility model are carried out or equivalently to replace, aim and the scope of the technical program can not be departed from, all should be encompassed in the middle of the utility model right.
Claims (4)
1., based on the automatic brightness-adjusting table lamp circuit that IC controls, it is characterized in that, comprise chip IC, the model of described chip IC is 74LS163; First pin of described chip IC is connected with one end of one end of the 3rd pin of the collector electrode of the positive pole of the positive pole of diode D3, diode D4, triode Q2, chip IC, electric capacity C1, one end of resistance R3, one end of photo resistance RG and electric capacity C2 respectively; The negative pole base stage of connecting triode Q1, the positive pole of power input VCC and diode D2 respectively of described diode D4, negative pole one end of connection bulb H and the positive pole of diode D1 respectively of described diode D3, the other end of described bulb H connects power input VDD; The negative pole of described diode D1 connects the negative pole of diode D2 and one end of resistance R1 respectively, the other end of resistance R1 connects one end of slide rheostat RP and one end of resistance R2 respectively, the sliding contact of described slide rheostat RP is connected between resistance R1 and resistance R2, and the other end of described slide rheostat RP connects one end of neon bulb N, the negative pole of diode D5 and the other end of electric capacity C1 respectively; The other end of described neon bulb N is connected to the control pole of controllable silicon VS, and the negative electrode of described controllable silicon VS is connected on the 4th pin of chip IC, and the anode of controllable silicon VS is connected with the negative pole of diode D2; The positive pole of described diode D5 is connected with the other end of resistance R2 and one end of switch S respectively, and the first joint of the described switch S other end is connected with the other end of photo resistance RG, and the second joint of the described switch S other end is connected with the other end of resistance R3; Be connected to the emitter of triode Q2 after the other end of described electric capacity C2 is connected with resistance R4, the base stage of described triode Q2 is connected with the emitter of triode Q1, and the collector electrode of described triode Q1 is connected on the second pin of chip IC.
2. a kind of automatic brightness-adjusting table lamp circuit controlled based on IC according to claim 1, it is characterized in that, the model of described neon bulb N is NE-2.
3. a kind of automatic brightness-adjusting table lamp circuit controlled based on IC according to claim 2, it is characterized in that, the model of described controllable silicon VS is TF541M.
4. a kind of automatic brightness-adjusting table lamp circuit controlled based on IC according to claim 3, it is characterized in that, the model of described triode Q1 is 3DA87A, and the model of described triode Q2 is 2N3904.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520694785.7U CN204906824U (en) | 2015-09-10 | 2015-09-10 | Desk lamp circuit with an automatic light meter based on IC control |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520694785.7U CN204906824U (en) | 2015-09-10 | 2015-09-10 | Desk lamp circuit with an automatic light meter based on IC control |
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| Publication Number | Publication Date |
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| CN204906824U true CN204906824U (en) | 2015-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520694785.7U Expired - Fee Related CN204906824U (en) | 2015-09-10 | 2015-09-10 | Desk lamp circuit with an automatic light meter based on IC control |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782840A (en) * | 2016-05-22 | 2016-07-20 | 渭南师范学院 | Automatic photosensitive dimming lamp |
-
2015
- 2015-09-10 CN CN201520694785.7U patent/CN204906824U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782840A (en) * | 2016-05-22 | 2016-07-20 | 渭南师范学院 | Automatic photosensitive dimming lamp |
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| Date | Code | Title | Description |
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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 |
Granted publication date: 20151223 Termination date: 20160910 |
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| CF01 | Termination of patent right due to non-payment of annual fee |