CN101795521A - Touch-type touch control switch - Google Patents
Touch-type touch control switch Download PDFInfo
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- CN101795521A CN101795521A CN201010150869A CN201010150869A CN101795521A CN 101795521 A CN101795521 A CN 101795521A CN 201010150869 A CN201010150869 A CN 201010150869A CN 201010150869 A CN201010150869 A CN 201010150869A CN 101795521 A CN101795521 A CN 101795521A
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- positive pulse
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Abstract
The invention relates to the technical field of touch control switches. In the touch control switches, a circuit comprises a trigger circuit, wherein the trigger circuit comprises a double-D trigger; a pin of the trigger is connected with a touch electrode; the trigger is connected with a singlechip, is triggered to generate positive pulse output action by triggering the touch electrode and inputs a positive pulse signal to the singlechip; and after receiving the positive pulse signal, the singlechip outputs a pulse-width modulation signal through the pin to drive a constant current driving chip, so that an LED luminous body is driven. After a human finger touches the touch electrode, the trigger performs overturn and restoration on the inner circuit state and outputs the positive pulse signal. The singlechip receives the positive pulse signal and outputs the pulse-width modulation signal to drive the constant current driving chip, so that LED luminous body is driven to irradiate. The touch-type touch control switch not only can be suitable for automatic illumination in places such as corridors, passageways, basements, garages and the like, but also can be used for directly replacing conventional switches. Furthermore, the touch-type touch control switch has a regulation function, and can regulate the output current intensity, so the luminance of the LED luminous body can be regulated.
Description
Technical field:
The present invention relates to the touch switch technical field, refer in particular to a kind of touch-type touch control switch.
Background technology:
Along with development of science and technology, traditional key switch has been difficult to satisfy people's needs, has therefore occurred many novel touch switches now, for example: audio-switch, photosensitive switch or the like.In addition,, in the space, be equivalent to one section antenna, on human body, form induced voltage such as the electromagnetic field in the electric wire around can responding to because the people is conductor.Around this principle, people's design place human body touch switch.When using this switch, after human body is contacting soft-touch control, the amplifying circuit in this voltage input soft-touch control, by amplifying, shaping forms a triggering signal overturns inner bistable circuit, triggers silicon controlled again circuit is connected, and makes lamp luminous.What at present, this human body touch switch use was maximum is exactly: touch delay switch.During use, as long as have a touch with touch electrode with finger, lamp is just lighted, and can extinguish automatically after delaying time about 1 minute.Regular tap can be directly replaced, house wiring needn't be changed.This product is applicable to automatic illumination in places such as corridor, corridor, basement, garage.
But still there is certain deficiency in present soft-touch control: sensitivity is not high, and use can't realize the function of light modulation etc. in lighting circuit.For this reason, the inventor proposes the technical program through research.
Summary of the invention:
Technical problem to be solved by this invention is exactly the deficiency that overcomes existing equipment, a kind of touch-type touch control switch is provided, and this touch switch not only has the on of general touch switch, and it is highly sensitive, and the function with scalable output signal is to change output current intensity.
For solving the problems of the technologies described above, the present invention has adopted following technical scheme: the circuit of this touch trigger switch comprises: the direct current input circuit that power supply is provided for circuit, LED luminous element as illumination, the constant-current driven chip of driving LED luminous element and the single-chip microcomputer of control circuit, also comprise circuits for triggering in this circuit, these circuits for triggering comprise: a double D trigger, one pin of this trigger is connected with a touch electrode, this trigger is connected with single-chip microcomputer, touch trigger generation positive pulse output action by triggering touch electrode, positive pulse signal is imported single-chip microcomputer, after single-chip microcomputer receives this positive pulse signal, drive constant-current driven chip by a pin output pulse width modulation signal wherein, thus the driving LED luminous element.
Setting can be write down the counter that touches number of times in the described single-chip microcomputer, according to different touch number of times, and the pulse-width signal of output different duty.
Described direct current input circuit is the 12V DC power supply.
Described trigger is the CC4013 double D trigger.
Two pins of described trigger are connected with electric capacity and resistance respectively, and wherein resistance is connected with electric capacity, by resistance electric capacity is charged.
Operation principle of the present invention is: direct current input circuit output 12V DC power supply provides power supply for this touch switch.When the finger touch of human body behind touch electrode, upset takes place with internal circuit status and resets in trigger, the signal of a positive pulse of output.Single-chip microcomputer receives this positive pulse signal, export a pulse-width signal and drive constant-current driven chip, thereby the driving LED luminous element is luminous.The present invention is not only applicable to automatic illumination in places such as corridor, corridor, basement, garages, it can directly replace switch commonly used to use, and the present invention has regulatory function, the intensity of its output current of scalable, thereby the luminosity of scalable LED luminous element.
Description of drawings:
Fig. 1 is a circuit diagram of the present invention;
Fig. 2 is the circuit diagram of direct current input circuit of the present invention.
Embodiment:
Below in conjunction with accompanying drawing this full mold is further described:
See Fig. 2, the present invention includes: the direct current input circuit 1 that power supply is provided for circuit, LED luminous element 2 as illumination, the constant-current driven chip 3 of driving LED luminous element 2 and the single-chip microcomputer 4 of control circuit, also comprise circuits for triggering in this circuit, these circuits for triggering comprise: a double D trigger 5, one pin of this trigger 5 is connected with a touch electrode 6, this trigger 5 is connected with single-chip microcomputer 4, touch trigger 5 generation positive pulse output actions by triggering touch electrode 6, positive pulse signal is imported single-chip microcomputer 4, after single-chip microcomputer 4 receives this positive pulse signal, drive constant-current driven chip 3 by a pin output pulse width modulation signal wherein, thus driving LED luminous element 2.
Two pins of described trigger 5 are connected with electric capacity 51 and resistance 52 respectively, and wherein resistance 52 is connected to electric capacity 51, to charge by 52 pairs of electric capacity of resistance 51.
Setting can be write down the counter that touches number of times in the described single-chip microcomputer 4, according to different touch number of times, and the pulse-width modulation PWM signal of output different duty.
Described trigger 5 is the CC4013 double D trigger.
See Fig. 2, this is the circuit diagram of direct current input circuit 1, and it mainly is that the alternating current by the input of input 11 places is converted into the 12V direct current, by output 12 outputs, is circuit supply of the present invention.
Below in conjunction with Fig. 1 use principle of the present invention is described: when the finger touch of human body to touch electrode 6, because the effect of human body sensing can produce a positive transition pulse (being that numerical value becomes 1 by 0) at the pin d of trigger 5.Because it is 1 that pin b equals level value, is high level, under the trigger 5 internal trigger effects, pin c exports high level.The pin a of trigger 5 is by 51 chargings of 52 pairs of electric capacity of resistance, and when electric capacity 51 both end voltage were raised to reset level, the numerical value of pin a became 0 by 1, and pin c has just finished a positive pulse output action like this.The pin f of single-chip microcomputer 4 picks up this positive pulse signal as indication, and pulse-width signal of pin g output of single-chip microcomputer 4 drives constant-current driven chip 3, thereby 2 beginnings of driving LED luminous element are luminous.In addition, single-chip microcomputer 4 is provided with and can writes down the counter program that touches number of times, can write down the number of times that touches each time, the pulse-width modulation PWM signal of output different duty, thus make the different drive current of constant-current driven chip 3 outputs reach the effect of light modulation.
Certainly, the above is embodiments of the invention only, is not to limit the scope of the invention, and all equivalences of doing according to the described structure of the present patent application claim, feature and principle change or modify, and all should be included in the present patent application claim.
Claims (5)
1. touch-type touch control switch, its circuit comprises: the direct current input circuit (1) that power supply is provided for circuit, LED luminous element (2) as illumination, the constant-current driven chip (3) of driving LED luminous element (2) and the single-chip microcomputer (4) of control circuit, it is characterized in that: also comprise circuits for triggering in this circuit, these circuits for triggering comprise: a double D trigger (5), one pin of this trigger (5) is connected with a touch electrode (6), this trigger (5) is connected with single-chip microcomputer (4), touch trigger (5) generation positive pulse output action by triggering touch electrode (6), positive pulse signal is imported single-chip microcomputer (4), after single-chip microcomputer (4) receives this positive pulse signal, drive constant-current driven chip (3) by a pin output pulse width modulation signal wherein, thereby driving LED luminous element (2) is luminous.
2. a kind of touch-type touch control switch according to claim 1 is characterized in that: the interior setting of described single-chip microcomputer (4) can be write down the counter that touches number of times, according to different touch number of times, and the pulse-width signal of output different duty.
3. a kind of touch-type touch control switch according to claim 1 is characterized in that: described direct current input circuit (1) is the 12V DC power supply.
4. a kind of touch-type touch control switch according to claim 1 is characterized in that: described trigger (5) is the CC4013 double D trigger.
5. a kind of touch-type touch control switch according to claim 1, it is characterized in that: two pins of described trigger (5) are connected with electric capacity (51) and resistance (52) respectively, wherein resistance (52) is connected to electric capacity (51), by resistance (52) electric capacity (51) is charged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010150869A CN101795521A (en) | 2010-04-13 | 2010-04-13 | Touch-type touch control switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010150869A CN101795521A (en) | 2010-04-13 | 2010-04-13 | Touch-type touch control switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101795521A true CN101795521A (en) | 2010-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010150869A Pending CN101795521A (en) | 2010-04-13 | 2010-04-13 | Touch-type touch control switch |
Country Status (1)
| Country | Link |
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| CN (1) | CN101795521A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104780694A (en) * | 2015-05-05 | 2015-07-15 | 卫斌鹏 | LED touch dimming constant current drive power source |
| CN105451394A (en) * | 2015-12-25 | 2016-03-30 | 重庆睿博光电股份有限公司 | Reading lamp control device in automobile |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2207678Y (en) * | 1994-09-17 | 1995-09-13 | 甘江海 | Dual-state light regulating device for contact switch |
| CN201322280Y (en) * | 2008-12-22 | 2009-10-07 | 四川新力光源有限公司 | LED brightness-adjusting lighting device |
| CN201349347Y (en) * | 2009-01-22 | 2009-11-18 | 深圳市景阳科技股份有限公司 | Infrared lamp driving circuit and infrared integrated camera |
-
2010
- 2010-04-13 CN CN201010150869A patent/CN101795521A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2207678Y (en) * | 1994-09-17 | 1995-09-13 | 甘江海 | Dual-state light regulating device for contact switch |
| CN201322280Y (en) * | 2008-12-22 | 2009-10-07 | 四川新力光源有限公司 | LED brightness-adjusting lighting device |
| CN201349347Y (en) * | 2009-01-22 | 2009-11-18 | 深圳市景阳科技股份有限公司 | Infrared lamp driving circuit and infrared integrated camera |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104780694A (en) * | 2015-05-05 | 2015-07-15 | 卫斌鹏 | LED touch dimming constant current drive power source |
| CN105451394A (en) * | 2015-12-25 | 2016-03-30 | 重庆睿博光电股份有限公司 | Reading lamp control device in automobile |
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| C06 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100804 |