CN105142296A - Adaptive lamplight brightness regulator - Google Patents
Adaptive lamplight brightness regulator Download PDFInfo
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- CN105142296A CN105142296A CN201510601940.0A CN201510601940A CN105142296A CN 105142296 A CN105142296 A CN 105142296A CN 201510601940 A CN201510601940 A CN 201510601940A CN 105142296 A CN105142296 A CN 105142296A
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- Prior art keywords
- resistance
- transistor
- silicon controlled
- lamp
- self adaptation
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Abstract
An adaptive lamplight brightness regulator disclosed by the present invention comprises a lamp and a bridge rectifier circuit connected with the lamp, the output end of the bridge rectifier circuit is connected with the A-end and the K-end of a silicon controlled rectifier separately, and the A-end of the silicon controlled rectifier is connected with the drain of a transistor via a first resistor. A second resistor and a photoresistor which are connected in series are connected between the source and the grid of the transistor, the K-end of the silicon controlled rectifier is connected with the source of the transistor via a fourth resistor, the G-end of the silicon controlled rectifier is connected with the source of the transistor, and the grid of the transistor is connected with the common end of the fourth resistor and the silicon controlled rectifier via a capacitor. The adaptive lamplight brightness regulator is simple in circuit structure, can regulate the brightness of the lamp according to the light ray intensity, and saves the energy.
Description
Technical field
The present invention relates to lamp control device field, particularly, relate to a kind of self adaptation lamp brightness selector.
Background technology
Lamp is one of necessity in people's daily life, and in classroom, in office, it adopts incandescent lamp, electricity-saving lamp etc. mostly, and utilizes Switch Controller lamp to control.Enter the classroom or office in the morning one, habitually opened by lamp, and along with the grow of light, and lamp remains unchanged light yellow, causes the waste of the energy.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of self adaptation lamp brightness selector, and its circuit structure is simple, can regulate, energy savings according to the brightness of light intensity to lamp.
The present invention's adopted technical scheme that solves the problem is:
A kind of self adaptation lamp brightness selector, comprise lamp and be connected to the bridge rectifier on lamp, the output of described bridge rectifier is connected to silicon controlled A and holds and K end, described silicon controlled A end is connected with the drain electrode of transistor by the first resistance, the second resistance and photo resistance that are in series is connected with between the drain and gate of described transistor, described silicon controlled K end is connected with the source electrode of transistor by the 4th resistance, described silicon controlled G end is connected on the source electrode of transistor, the grid of described transistor is connected with silicon controlled common port with the 4th resistance by electric capacity.
As preferably, the resistance of the 4th described resistance is less than one kilohm.
As preferably, described photo resistance is GL5616.
As preferably, the capacitance of described electric capacity is 0.02 μ F.
As preferably, described controllable silicon adopts 3CT1A.
To sum up, the invention has the beneficial effects as follows:
1, the present invention utilizes the intensity of photo resistance to light to respond to, and regulates silicon controlled ON time, thus controls the brightness of lamp, reaches and regulates according to the brightness of light intensity to lamp, energy savings.
2, circuit structure of the present invention is simple, is easy to realize, economical and practical.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present invention.
Embodiment
Below in conjunction with embodiment and accompanying drawing, to the detailed description further of the present invention's do, but embodiments of the present invention are not limited thereto.
Embodiment 1:
A kind of self adaptation lamp brightness selector as shown in Figure 1, comprise lamp L and be connected to the bridge rectifier on lamp L, the output of described bridge rectifier is connected to A end and the K end of controllable silicon VS, the A end of described controllable silicon VS is connected with the drain electrode of transistor T by the first resistance R1, the the second resistance R2 and photo resistance R3 that are in series is connected with between the drain and gate of described transistor T, the K end of described controllable silicon VS is connected with the source electrode of transistor T by the 4th resistance R4, the G end of described controllable silicon VS is connected on the source electrode of transistor T, the grid of described transistor T is connected with the common port of controllable silicon VS with the 4th resistance R4 by electric capacity C.
As shown in Figure 1, bridge rectifier is made up of diode D1-D4, and lamp is connected on the input of bridge rectifier.Civil power is after bridge rectifier rectification, and the A end and the K that are added in controllable silicon VS hold the voltage at two ends to be pulse voltages, supply follow-up circuits for triggering as DC power supply and synchronizing voltage after resistance R1 step-down.In every half period, when the charging voltage on electric capacity C repeatedly arrives the peak point voltage of transistor, transistor turns, electric capacity C is by the 4th conductive discharge, now, the 4th resistance exports a pulse, delivers to silicon controlled G and hold, trigger controlled silicon conducting, now, lamp is shinny; After controlled silicon conducting, hold the pressure drop between G end very little at silicon controlled A, now, circuits for triggering quit work.When supply voltage zero passage, controllable silicon turns off, until next cycle starts, electric capacity charges again, successively said process repeatedly.In circuits for triggering circuit, the photo resistance that employing is in series and the second resistance regulate the ON time of controllable silicon in every half period, thus control the brightness of lamp.Second resistance is to its protective effect of circuits for triggering.When the resistance of photo resistance is large, namely photo resistance and the second resistant series gained resistance value are greatly, and the electric capacity needs longer charging interval could by controlled silicon conducting, and now, bulb is darker; Otherwise bulb is brighter.
Embodiment 2:
A kind of self adaptation lamp brightness selector as shown in Figure 1, the present embodiment is optimized on the basis of above-described embodiment, and the resistance of the 4th namely described resistance R4 is less than one kilohm.The effect of the 4th resistance is mainly G end trigger impulse being sent into transistor, and trigger controlled silicon conducting, its resistance is not easily excessive, and time excessive, its power consumed is also large.
Elect photo resistance R3 as GL5616.Photo resistance is the very important factor of automatic light adjuster, and its performance is directly connected to the susceptibility of automatic light adjuster to light.GL5616, it is highly sensitive, spectral response is high, effectively can improve the sensitivity of whole automatic light adjuster.
The capacitance of described electric capacity C is 0.02 μ F.
Described controllable silicon VS adopts 3CT1A.Controllable silicon VS is equally also the very important factor of automatic light adjuster, and its performance is directly connected to the performance that automatic light adjuster controls lamp, adopts 3CT1A, effectively can improve overall performance.
As mentioned above, the present invention can be realized preferably.
Claims (5)
1. a self adaptation lamp brightness selector, comprise lamp and be connected to the bridge rectifier on lamp, it is characterized in that: the output of described bridge rectifier is connected to silicon controlled A and holds and K end, described silicon controlled A end is connected with the drain electrode of transistor by the first resistance, the second resistance and photo resistance that are in series is connected with between the drain and gate of described transistor, described silicon controlled K end is connected with the source electrode of transistor by the 4th resistance, described silicon controlled G end is connected on the source electrode of transistor, the grid of described transistor is connected with silicon controlled common port with the 4th resistance by electric capacity.
2. a kind of self adaptation lamp brightness selector according to claim 1, is characterized in that: the resistance of the 4th described resistance is less than one kilohm.
3. a kind of self adaptation lamp brightness selector according to claim 1, is characterized in that: described photo resistance is GL5616.
4. a kind of self adaptation lamp brightness selector according to claim 1, is characterized in that: the capacitance of described electric capacity is 0.02 μ F.
5. a kind of self adaptation lamp brightness selector according to claim 1, is characterized in that: described controllable silicon adopts 3CT1A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510601940.0A CN105142296A (en) | 2015-09-21 | 2015-09-21 | Adaptive lamplight brightness regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510601940.0A CN105142296A (en) | 2015-09-21 | 2015-09-21 | Adaptive lamplight brightness regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105142296A true CN105142296A (en) | 2015-12-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510601940.0A Pending CN105142296A (en) | 2015-09-21 | 2015-09-21 | Adaptive lamplight brightness regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105142296A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2098124U (en) * | 1991-07-05 | 1992-03-04 | 毋江 | Sound and light control switch |
| CN102802323A (en) * | 2012-09-09 | 2012-11-28 | 刘昭利 | Automatic dimming table lamp |
| WO2013189159A1 (en) * | 2012-06-20 | 2013-12-27 | 伟思科技控股有限公司 | Drive circuit of light-emitting element and illumination device |
| CN204968189U (en) * | 2015-09-21 | 2016-01-13 | 成都市宏山科技有限公司 | Can be according to strong and weak automatically regulated light brightness's of light regulator |
-
2015
- 2015-09-21 CN CN201510601940.0A patent/CN105142296A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2098124U (en) * | 1991-07-05 | 1992-03-04 | 毋江 | Sound and light control switch |
| WO2013189159A1 (en) * | 2012-06-20 | 2013-12-27 | 伟思科技控股有限公司 | Drive circuit of light-emitting element and illumination device |
| CN102802323A (en) * | 2012-09-09 | 2012-11-28 | 刘昭利 | Automatic dimming table lamp |
| CN204968189U (en) * | 2015-09-21 | 2016-01-13 | 成都市宏山科技有限公司 | Can be according to strong and weak automatically regulated light brightness's of light regulator |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151209 |