CN204014176U - A kind of LED illumination touch control circuit - Google Patents
A kind of LED illumination touch control circuit Download PDFInfo
- Publication number
- CN204014176U CN204014176U CN201420297202.2U CN201420297202U CN204014176U CN 204014176 U CN204014176 U CN 204014176U CN 201420297202 U CN201420297202 U CN 201420297202U CN 204014176 U CN204014176 U CN 204014176U
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- China
- Prior art keywords
- unit
- light modulation
- control circuit
- resistance
- touch control
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- 238000005286 illumination Methods 0.000 title claims abstract description 18
- 239000003990 capacitor Substances 0.000 claims abstract description 17
- 230000003287 optical effect Effects 0.000 claims abstract description 4
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The LED touch control circuit that throws light on, comprising: a touch sheet P1, connects amplifying unit Y1; Described amplifying unit Y1 connects respectively charge switch K1 and bistable unit S1; Described charge switch K1 contact resistance R6 and capacitor C 10; The input of one light modulation unit is connected on the upper end of capacitor C 10; One constant-current driven module U1 is connected on the output of light modulation unit; The output termination discharge switch K2 of the 4th comparator unit B4 in described light modulation unit; Described constant-current driven module U1 connects illumination LED 1 and LED2.Described bistable unit S1 connecting lamp optical switch K3.Compared with prior art, the utility model can be according to the switch and the brightness that touch information that interval and touch time comprises and arrange and control lamp, and circuit of the present utility model is simple and reliable, controls accurately, easy to use.
Description
Technical field
The utility model relates to a kind of electronic circuit, particularly controls the electronic circuit of lighting, especially LED illumination touch control circuit.
Background technology
Current, LED illuminating lamp of the prior art in use, mostly be to use potentiometer to carry out light modulation, because carrying out light modulation, potentiometer has wearing and tearing, after service time is permanent, the detection of signal has a unstable uncertain region, can make the judgement of control device very difficult, misjudge the phenomenon of failing to judge and again and again occur, the brightness that makes lamp is not the desired brightness of user.
In some specific application scenarios, people are impatient at high like this error rate, need to improve control precision.
Utility model content
In order to solve in prior art potentiometer, carry out light modulation and be easy to produce wearing and tearing, the brightness that causes lamp is not the problem of the desired brightness of user, the utility model proposes a kind of LED illumination touch control circuit.
The utility model substitutes potentiometer by touch sheet and carries out light modulation, and the control of light modulation unit is reliable and stable, there will not be the disconnected phenomenon of erroneous judgement.
The utility model is by adopting following technical scheme to realize:
Design a kind of LED illumination touch control circuit, comprising:
One touch sheet P1, connects amplifying unit Y1;
Described amplifying unit Y1 connects respectively charge switch K1 and bistable unit S1;
Described charge switch K1 contact resistance R6 and capacitor C 10;
The input of one light modulation unit is connected on the upper end of capacitor C 10;
One constant-current driven module U1 is connected on the output of light modulation unit;
The output termination discharge switch K2 of the 4th comparator unit B4 in described light modulation unit;
Described constant-current driven module U1 connects illumination LED 1 and LED2.
Described bistable unit S1 connecting lamp optical switch K3.
Described amplifying unit Y1, when connecting touch sheet P1, is that touch sheet P1 connects the input of amplifying unit Y1 by capacitor C 9.
Described light modulation unit, when connecting constant-current driven module U1, is that the ADJ that meets constant-current driven module U1 by resistance R 5 holds.
In described light modulation unit, the first voltage reference Z1 is 2.2V;
Second voltage benchmark Z2 is 2.7V;
Tertiary voltage benchmark Z3 is 3.1V;
The 4th voltage reference Z4 is 3.8V.
The capacity of described capacitor C 10 is 50 microfarad～200 microfarads;
The resistance of described resistance R 6 is 300K Ω～2M Ω.
In described constant-current driven module U1, the resistance of resistance R 3 is 1/4 of resistance R 5 resistances.
Compared with prior art, the utility model can be according to the switch and the brightness that touch information that interval and touch time comprises and arrange and control lamp, and circuit of the present utility model is simple and reliable, controls accurately, easy to use.
Accompanying drawing explanation
Fig. 1 is a kind of LED illumination of the utility model touch control circuit electrical schematic diagram.
Embodiment
Below in conjunction with most preferred embodiment shown in the drawings, the utility model is done to further detailed description:
Manufacture and design a kind of LED illumination touch control circuit as shown in Figure 1.
The utility model comprises:
One touch sheet P1, connects amplifying unit Y1;
Described amplifying unit Y1 connects respectively charge switch K1 and bistable unit S1;
Described charge switch K1 contact resistance R6 and capacitor C 10;
The input of one light modulation unit 11 is connected on the upper end of capacitor C 10;
One constant-current driven module U1 is connected on the output of light modulation unit 11;
The output termination discharge switch K2 of the 4th comparator unit B4 in described light modulation unit 11;
Described constant-current driven module U1 connects illumination LED 1 and LED2.
Described bistable unit S1 connecting lamp optical switch K3.
Described amplifying unit Y1, when connecting touch sheet P1, is that touch sheet P1 connects the input of amplifying unit Y1 by capacitor C 9.
Described light modulation unit 11, when connecting constant-current driven module U1, is that the ADJ that meets constant-current driven module U1 by resistance R 5 holds.
The utility model operating state:
When human body touch for the first time touches receiving element to static, through C9 to amplifying unit Y1 input control signal, make amplifying unit Y1 output high level connect the charge circuit of resistance R 5 and capacitor C 10, capacitor C 10 starts charging, when voltage reaches certain numerical value, the first comparator unit B1 upset conducting in light modulation unit 11, output pwm signal is to constant-current driven module U1, and illuminating lamp is bright.
When human body touch is for the second time during to touch sheet P1, through C9, to amplifying unit Y1 input control signal, make amplifying unit Y1 output high level, bistable unit S1 upset, turn-offs headlamp switch K3, and illuminating lamp extinguishes.
Dimming function operating state:
When human body touch is for the first time during to touch sheet P1, through C9 to amplifying unit Y1 input control signal, make the first comparator unit B1 output pwm signal to through R5 to constant-current driven module U1, illuminating lamp is bright.
More than human body touch stops a second to touch sheet P1, the second comparator unit B2 upset, output pwm signal is to making LED1 through R5 to constant-current driven module U1, and LED2 lamp starts light modulation, dimming scope the second brightness such as grade, be 5 ± 3 seconds each circulation timei.
Down carry out, the 3rd comparator unit B3 upset, works as LED1, and LED2 lamp is adjusted to the brightest.
Down carry out, the 4th comparator unit B4 upset, it connects discharge switch K2, and capacitor C 10 electric discharges lose voltage, continue human body touch to touch sheet P1, start to set again from the brightness of telling somebody what one's real intentions are.
It is SN3360 that constant-current driven module U1 selects model, and its ADJ end is operated in DC power control pattern, when this section of 0.2V is following, and module shuts down, LED lamp dead electricity, during 0.3V～1.2V, brightness is adjusted between 25%～100%; Higher than 1.3V, all take 100% as.
So:
In described light modulation unit 11, the first voltage reference Z1 is 2.2V;
Second voltage benchmark Z2 is 2.7V;
Tertiary voltage benchmark Z3 is 3.1V;
The 4th voltage reference Z4 is 3.8V.
The capacity of described capacitor C 10 is 50 microfarad～200 microfarads;
The resistance of described resistance R 6 is 300K Ω～2M Ω.
In described constant-current driven module U1, the resistance of resistance R 3 is 1/4 of resistance R 5 resistances.
The utility model, by a large amount of tests, has proved this programme dependable performance.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to protection range of the present utility model.
Claims (7)
1. a LED illumination touch control circuit, is characterized in that, comprising:
One touch sheet P1, connects amplifying unit Y1;
Described amplifying unit Y1 connects respectively charge switch K1 and bistable unit S1;
Described charge switch K1 contact resistance R6 and capacitor C 10;
The input of one light modulation unit (11) is connected on the upper end of capacitor C 10;
One constant-current driven module U1 is connected on the output of light modulation unit (11);
The output termination discharge switch K2 of the 4th comparator unit B4 in described light modulation unit (11);
Described constant-current driven module U1 connects illumination LED 1 and LED2.
2. LED according to claim 1 illumination touch control circuit, is characterized in that:
Described bistable unit S1 connecting lamp optical switch K3.
3. according to claim 1, connect described LED illumination touch control circuit, it is characterized in that:
Described amplifying unit Y1, when connecting touch sheet P1, is that touch sheet P1 connects the input of amplifying unit Y1 by capacitor C 9.
4. LED according to claim 1 illumination touch control circuit, is characterized in that:
Described light modulation unit (11), when connecting constant-current driven module U1, is that the ADJ that meets constant-current driven module U1 by resistance R 5 holds.
5. LED according to claim 1 illumination touch control circuit, is characterized in that:
In described light modulation unit (11), the first voltage reference Z1 is 2.2V;
Second voltage benchmark Z2 is 2.7V;
Tertiary voltage benchmark Z3 is 3.1V;
The 4th voltage reference Z4 is 3.8V.
6. LED according to claim 1 illumination touch control circuit, is characterized in that:
The capacity of described capacitor C 10 is 50 microfarad～200 microfarads;
The resistance of described resistance R 6 is 300K Ω～2M Ω.
7. LED according to claim 1 illumination touch control circuit, is characterized in that:
In described constant-current driven module U1, the resistance of resistance R 3 is 1/4 of resistance R 5 resistances.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420297202.2U CN204014176U (en) | 2014-06-06 | 2014-06-06 | A kind of LED illumination touch control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420297202.2U CN204014176U (en) | 2014-06-06 | 2014-06-06 | A kind of LED illumination touch control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204014176U true CN204014176U (en) | 2014-12-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420297202.2U Expired - Lifetime CN204014176U (en) | 2014-06-06 | 2014-06-06 | A kind of LED illumination touch control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204014176U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106455262A (en) * | 2016-10-10 | 2017-02-22 | 成都赛昂电子科技有限公司 | Signal amplification type touch dimming control circuit |
| CN110708819A (en) * | 2019-10-18 | 2020-01-17 | 涓ュ浆 | Control circuit of photon pulse hot compress instrument |
-
2014
- 2014-06-06 CN CN201420297202.2U patent/CN204014176U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106455262A (en) * | 2016-10-10 | 2017-02-22 | 成都赛昂电子科技有限公司 | Signal amplification type touch dimming control circuit |
| CN110708819A (en) * | 2019-10-18 | 2020-01-17 | 涓ュ浆 | Control circuit of photon pulse hot compress instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141210 |
|
| CX01 | Expiry of patent term |