CN104080234A - Touching and keying integrated LED driver - Google Patents
Touching and keying integrated LED driver Download PDFInfo
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- CN104080234A CN104080234A CN201310125201.XA CN201310125201A CN104080234A CN 104080234 A CN104080234 A CN 104080234A CN 201310125201 A CN201310125201 A CN 201310125201A CN 104080234 A CN104080234 A CN 104080234A
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- 230000003071 parasitic effect Effects 0.000 claims description 6
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- 239000003990 capacitor Substances 0.000 abstract description 10
- 238000010586 diagram Methods 0.000 description 7
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Abstract
A touching and keying integrated LED driver comprises a signal input module and a signal detection module which is electrically connected with the signal input module. The signal input module comprises a touching input control module, a keying input control module and a capacitor. The touching input control module and the keying input control module are connected in parallel and meanwhile are connected with the capacitor in series, and the output end of the capacitor is electrically connected with the signal detection module. By means of the touching and keying integrated LED driver, instant switching or light adjusting control can be conducted on a load such as an LED in a touching mode and in a keying mode at the same time, therefore, design of an LED lamp can be more flexible, and traditional and novel control modes can be provided at the same time.
Description
Technical field
The present invention relates to a kind of power control unit, particularly a kind of touch key-press integral LED driver.
Background technology
In LED driver, usually to use some control switchs, common control switch has key switch and contact witch.Key switch in routine use, all by modern everyone be familiar with, as lamp switch etc., contact witch is also day by day used by people in routine use, as electronic products such as Mobile phone screen, computers.Touch control is different according to its principle, can be divided into the multiple control modes such as electric wave formula, resistance-type, optical profile type, condenser type, inductance type and electromagnetic type.Every kind of control mode has its pluses and minuses and applicable situation separately.Wherein capacitance touch formula is controlled because its circuit is relatively simple, only needs a microprocessor and some peripheral circuits just can realize the touch Detection & Controling to button, thereby is applicable to many occasions, as television set, LED driver etc.And in some scenarios, have the demand that use has the driver of key switch and contact witch simultaneously.
Summary of the invention
In view of this, be necessary to provide a kind of touch key-press integral LED driver simultaneously with key switch and contact witch.
Touch key-press integral LED driver comprises a signal input module, and a signal detection module being electrically connected with this signal input module.Described signal input module comprises that one touches input control module, a key-press input control module, and an electric capacity.Described touch input control module and key-press input control module are arranged in parallel, and simultaneously with described capacitances in series, the output of described electric capacity and signal detection module are electrically connected.
Compared with prior art, described touch key-press integral LED driver can be simultaneously with touching, two kinds of modes of button carry out instant on switch or brightness adjustment control to load as LED, this makes the design of LED light fixture can be more flexible, also can have tradition and novel control mode simultaneously.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, embodiments of the invention are described, wherein:
Fig. 1 is the schematic block circuit diagram of a kind of touch key-press integral LED driver provided by the invention.
Fig. 2 is the touch key-press integral LED drive circuit theory diagram of the signal input module having of Fig. 1.
Fig. 3 is the circuit diagram of the touch key-press integral LED driver of Fig. 1.
Embodiment
Based on accompanying drawing, specific embodiments of the invention are further elaborated below.Should be appreciated that specific embodiment described herein is only as embodiment, the protection range being not intended to limit the present invention.
Refer to Fig. 1 to Fig. 3, it is schematic block circuit diagram and the circuit diagram of a kind of touch key-press integral LED driver 100 provided by the present invention.Described touch key-press integral LED driver 100 comprises a power module 10, a signal detection module 11 being electrically connected with this power module 10, a signal input module 12 being electrically connected with described signal detection module 11, a control module 13 that receives the output signal of described signal detection module 11, and a DC/DC modular converter 14 being electrically connected with this control module 13.
Need to further illustrate, in above-mentioned each functional module, parameter, function, structure and the operation principle etc. of related electronic circuit components and parts are all those skilled in the art's technology known, at this, will repeat no more.
Described power module 10 is used to described signal detection module 11 and control module 13 that electric power is provided, and it is converted to high voltage the low-voltage that is applicable to described signal detection module 11 and control module 13 work.In the present embodiment, because described LED driver 100 can be connected to (not shown) on the transformer of 12V, 24V or 48V, the high input voltage of this power module 10 can be 12V, 24V or 48V, and its output LOW voltage is 5V.
Described signal detection module 11 is for detection of the input signal from signal input module 12, and converts according to this input signal the output signal that is applicable to described control module 13 work to.What the described input signal from signal input module 12 was touch signal from push button signalling according to the difference of input is different and different, therefore described signal detection module 11 comprises that a capacitance-sensitive scope is interval, and described different input signal should be contained in this capacitance-sensitive scope interval.As shown in Figure 3, the circuit of described signal detection module 11 comprises a signal processing chip N1, and its model can be IQS127D, and this signal processing chip N1 can process different input signals, then exports to next functional module.In the present embodiment, described output signal is a high voltage signal.
Described signal input module 12 comprises that touches 121, one key-press input control modules 122 of input control module, and a capacitor C 7.Described touch input control module 121 is arranged in parallel with key-press input control module 122, and the described touch input control module 121 after parallel connection is simultaneously connected with described capacitor C 7 together with key-press input control module 122.In the circuit diagram of Fig. 3, described touch input control module 121 and key-press input control module 122 are according to the regulation of circuit diagram itself by Touch/Switch, and two input frames of Switch represent.Described touch input control module 121 comprises a touch dish T, and described touch dish T can, for touch control module known in prior art, no longer be described in detail a bit.While having signal input when described touch dish T is touched by user, between this touch dish T and the earth, can produce a parasitic capacitance.Due to when described touch dish T is activated, key-press input control module 122 is in off-state, and therefore, this parasitic capacitance will be connected with capacitor C 7, therefore, now the output signal of described signal input module 12 is the value after the capacitance of described capacitor C 7 and the capacitance of this parasitic capacitance are connected.And when described key-press input control module 122 is activated, described touch input control module 121 will disconnect, now, the input signal of described signal input module 12 will be only the capacitance of described capacitor C 7.Therefore as long as by the capacitance-sensitive scope of described signal detection module 11 is interval when the value of capacitance that comprises after described capacitor C 7 is connected with parasitic capacitance and the capacitance of described capacitor C 7 are set, when any one in described touch input control module 121 and key-press input control module 122 is activated, described signal detection module 11 all will receive one from the input signal of described signal input module 12.
Described control module 13 receives the high voltage output signal of described signal detection module 11, and it was processed according to having or not with lasting time length of this high voltage output signal, and outputed signal to DC/DC modular converter 14.Described control module 13 can be single-chip microcomputer or central processing unit, and in the present embodiment, described control module 13 is single-chip microcomputer.
Described DC/DC modular converter 14 is according to the output signal of control module 13, be the having or not with the length of duration of this voltage signal to control the switch of this DC/DC modular converter 14 of high voltage voltage signal, thereby or the height of output voltage with the switch of control load and the adjustment of power, reach the object of light modulation.
Compared with prior art, described touch key-press integral LED driver 100 can be simultaneously with touching, two kinds of modes of button carry out instant on switch or brightness adjustment control to load as LED, this makes the design of LED light fixture can be more flexible, also can have tradition and novel control mode simultaneously.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all interior done any modifications in the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included in protection scope of the present invention in.
Claims (9)
1. a touch key-press integral LED driver, it is characterized in that: described LED driver comprises a signal input module, an and signal detection module being electrically connected with this signal input module, described signal input module comprises that touches an input control module, a key-press input control module, an and electric capacity, described touch input control module and key-press input control module are arranged in parallel, simultaneously the described touch input control module after parallel connection together with key-press input control module with described capacitances in series, the output of described electric capacity and signal detection module are electrically connected.
2. touch key-press integral LED driver as claimed in claim 1, is characterized in that: described LED driver also comprises a power module, and this power module and signal detection module are electrically connected, and thinks this signaling module power supply.
3. touch key-press integral LED driver as claimed in claim 1, it is characterized in that: described LED driver also comprises a control module, this control module and signal detection module are electrically connected to receive the output signal of this signal detection module, and according to this output signal output control signal.
4. touch key-press integral LED driver as claimed in claim 3, is characterized in that: described control module is single-chip microcomputer or central processing unit.
5. touch key-press integral LED driver as claimed in claim 4, it is characterized in that: signal detection module is according to the input signal output HIGH voltage signal of signal input module, and described single-chip microcomputer is exported control signal according to having or not with the duration of this high voltage signal.
6. touch key-press integral LED driver as claimed in claim 3, it is characterized in that: described LED driver also comprises a DC/DC modular converter, this DC/DC modular converter and control module are electrically connected, to open or switching off load according to the output signal of described control module, or the size of the power of load is exported in adjustment.
7. touch key-press integral LED driver as claimed in claim 1, it is characterized in that: described touch input control module comprises a touch dish, when described touch input control module has signal when input, the value after the capacitance of the parasitic capacitance of the formation between the capacitance that the output signal of described signal input module is described electric capacity and described touch dish and the earth is connected.
8. touch key-press integral LED driver as claimed in claim 1, is characterized in that: when described key-press input control module has signal input, and the capacitance that the output signal of described signal input module is described electric capacity.
9. the touch key-press integral LED driver as described in any one in claim 7 or 8, it is characterized in that: described signal detection module comprises that a capacitance-sensitive scope is interval, and this capacitance-sensitive scope interval comprises the value of capacitance and the capacitance of described electric capacity after described electric capacity is connected with parasitic capacitance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310125201.XA CN104080234B (en) | 2013-03-28 | 2013-03-28 | A kind of touch key-press integral LED driver |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310125201.XA CN104080234B (en) | 2013-03-28 | 2013-03-28 | A kind of touch key-press integral LED driver |
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| Publication Number | Publication Date |
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| CN104080234A true CN104080234A (en) | 2014-10-01 |
| CN104080234B CN104080234B (en) | 2016-08-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107707238A (en) * | 2016-08-08 | 2018-02-16 | 马正华 | A kind of double open switch |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201349206Y (en) * | 2008-12-31 | 2009-11-18 | 深圳裕达富电子有限公司 | Electrostatic touch key-press unit |
| CN202068387U (en) * | 2011-03-14 | 2011-12-07 | 宁波信泰机械有限公司 | RC oscillator circuit for capacitance type touch press key |
| CN102624372A (en) * | 2011-01-31 | 2012-08-01 | 苏州三星电子有限公司 | A touch button circuit |
| CN102868392A (en) * | 2011-07-06 | 2013-01-09 | 广东万和新电气股份有限公司 | Portability key circuit |
| CN203151845U (en) * | 2013-03-28 | 2013-08-21 | 林万炯 | A touch button integrated LED driver |
-
2013
- 2013-03-28 CN CN201310125201.XA patent/CN104080234B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201349206Y (en) * | 2008-12-31 | 2009-11-18 | 深圳裕达富电子有限公司 | Electrostatic touch key-press unit |
| CN102624372A (en) * | 2011-01-31 | 2012-08-01 | 苏州三星电子有限公司 | A touch button circuit |
| CN202068387U (en) * | 2011-03-14 | 2011-12-07 | 宁波信泰机械有限公司 | RC oscillator circuit for capacitance type touch press key |
| CN102868392A (en) * | 2011-07-06 | 2013-01-09 | 广东万和新电气股份有限公司 | Portability key circuit |
| CN203151845U (en) * | 2013-03-28 | 2013-08-21 | 林万炯 | A touch button integrated LED driver |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107707238A (en) * | 2016-08-08 | 2018-02-16 | 马正华 | A kind of double open switch |
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| CN104080234B (en) | 2016-08-17 |
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Effective date of registration: 20160324 Address after: The national high tech Zone Juxian 315103 Ningbo Road, Zhejiang province No. 1345 Applicant after: SELF ELECTRONICS CO., LTD. Address before: The national high tech Zone Juxian 315103 Ningbo Road, Zhejiang province No. 1345 Ningbo Purcell Electronics Ltd. Applicant before: Lin Wanjiong |
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