CN104080234B - A kind of touch key-press integral LED driver - Google Patents
A kind of touch key-press integral LED driver Download PDFInfo
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- CN104080234B CN104080234B CN201310125201.XA CN201310125201A CN104080234B CN 104080234 B CN104080234 B CN 104080234B CN 201310125201 A CN201310125201 A CN 201310125201A CN 104080234 B CN104080234 B CN 104080234B
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- 230000015572 biosynthetic process Effects 0.000 claims 1
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Abstract
A kind of touch key-press integral LED driver includes a signal input module, and a signal detection module being electrically connected with this signal input module.Described signal input module includes a touch input control module, a key-press input control module, and an electric capacity.Described touch input control module is arranged in parallel with key-press input control module, and simultaneously with described capacitances in series, the output of described electric capacity is electrically connected with signal detection module.Described touch key-press integral LED driver can carry out instant on switch or brightness adjustment control by touch, button two ways to load such as LED simultaneously, and this makes the design of LED lamp also can have tradition and the control mode of novelty more flexibly simultaneously.
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, being often required to use some to control switch, common control switch has button
Switch and contact witch.Key switch is in routine use, and all by the modern times, everyone is familiar with, such as lamp
Tool switches etc., contact witch is the most day by day used by people in routine use, such as Mobile phone screen, computer etc.
Electronic product.Touch control is different according to its principle, can be divided into electric wave formula, resistance-type, optical profile type, electricity
The multiple control modes such as appearance formula, inductance type and electromagnetic type.Every kind of control mode has its respective pluses and minuses and fits
Use occasion.Wherein capacitance touch formula controls owing to its circuit is relatively easy, it is only necessary to microprocessor and
Some peripheral circuits achieve that the touch Detection & Controling to button, thus are applicable to many occasions, such as electricity
Depending on machine, LED driver etc..And in some scenarios, have use and there is key switch and touch simultaneously
The demand of the driver of formula switch.
Summary of the invention
In view of this, it is necessary to a kind of touch key-press with key switch and contact witch is provided
Integral LED driver.
A kind of touch key-press integral LED driver includes a signal input module, and one with should
The signal detection module that signal input module is electrically connected with.Described signal input module includes a touch input
Control module, a key-press input control module, and an electric capacity.Described touch input control module with
Key-press input control module is arranged in parallel, and simultaneously with described capacitances in series, the output of described electric capacity is examined with signal
Survey module is electrically connected with.
Compared with prior art, described touch key-press integral LED driver can be simultaneously with touch, button
Two ways carries out instant on switch or brightness adjustment control to load such as LED, and this makes the design energy of LED lamp
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:
The schematic block circuit diagram of a kind of touch key-press integral LED driver that Fig. 1 provides for the present invention.
Fig. 2 is that the touch key-press integral LED drive circuit of the signal input module having of Fig. 1 is former
Reason block diagram.
Fig. 3 is the circuit diagram of the touch key-press integral LED driver of Fig. 1.
Detailed description of the invention
Below based on accompanying drawing, the specific embodiment of the present invention is further elaborated.Should be appreciated that this
Specific embodiment described by place is only used as embodiment, the protection domain being not intended to limit the present invention.
Referring to Fig. 1 to Fig. 3, it is a kind of touch key-press integral LED driver provided by the present invention
The schematic block circuit diagram of 100 and circuit diagram.Described touch key-press integral LED driver 100 includes one
Power module 10, a signal detection module 11 being electrically connected with this power module 10, one with described
The signal input module 12 that signal detection module 11 is electrically connected with, one receives described signal detection module 11
The control module 13 of output signal, and a DC/DC being electrically connected with this control module 13 turns
Die change block 14.
Need it is further noted that the ginseng of electronic circuit components and parts involved in above-mentioned each functional module
Number, function, structure and operation principle etc. are all the technology known by those skilled in the art, will at this
Repeat no more.
Described power module 10 is used for providing electric power for described signal detection module 11 and control module 13,
High voltage is converted to be suitable for the low-voltage that described signal detection module 11 works with control module 13 by it.?
In the present embodiment, owing to described LED driver 100 can be connected to the transformation of 12V, 24V or 48V
(not shown) on device, the high input voltage of this power module 10 can be 12V, 24V or 48V, and it is defeated
Going out low-voltage is 5V.
Described signal detection module 11 for detection from the input signal of signal input module 12, and according to
This input signal is converted into the output signal of applicable described control module 13 work.Described from signal input
The input signal of module 12 is different and different according to difference i.e. touch signal and the push button signalling of input, because of
This described signal detection module 11 includes a capacitance-sensitive range intervals, and this capacitance-sensitive range intervals should
When containing described different input signal.As it is shown on figure 3, the circuit of described signal detection module 11 wraps
Including a signal processing chip N1, its model can be IQS127D, and N1 is permissible for this signal processing chip
Different input signals is processed, is then output to next functional module.In the present embodiment, institute
Stating output signal is a high voltage signal.
Described signal input module 12 includes that a touch input control module 121, a key-press input control
Module 122, and an electric capacity C7.Described touch input control module 121 and key-press input control module
122 are arranged in parallel, simultaneously the described touch input control module 121 after parallel connection and key-press input control module
122 connect with described electric capacity C7 together.In the circuit diagram of Fig. 3, described touch input control module 121
With key-press input control module 122 according to the regulation of circuit diagram itself by Touch/Switch, Switch two
Input frame represents.Described touch input control module 121 includes a touch dish T, and described touch dish T can
Think touch control module known in prior art, be no longer described in detail a bit.As described touch dish T
When having signal to input when being touched by user, a parasitic electricity between this touch dish T and the earth, can be produced
Hold.Owing to when described touch dish T is activated, key-press input control module 122 is off, because of
This, this parasitic capacitance will be connected with electric capacity C7, therefore, the output letter of the most described signal input module 12
Number it is the value after the described capacitance of electric capacity C7 is connected with the capacitance of this parasitic capacitance.And when described button
When input control module 122 is activated, described touch input control module 121 will be switched off, now, described
The input signal of signal input module 12 will only be the capacitance of described electric capacity C7.As long as therefore by described letter
The capacitance-sensitive range intervals of number detection module 11 arranges and comprises after described electric capacity C7 connects with parasitic capacitance
During the capacitance of the value of capacitance and described electric capacity C7, then when described touch input control module 121 with press
When any one in key input control module 122 is activated, described signal detection module 11 is all by reception
To an input signal from described signal input module 12.
Described control module 13 receives the high voltage output signal of described signal detection module 11, and it is according to being somebody's turn to do
The presence or absence of high voltage output signal processes with duration length, and outputs signal to DC/DC
Modular converter 14.Described control module 13 can be single-chip microcomputer or central processing unit, 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, i.e. high voltage voltage is believed
Number the length of presence or absence and the persistent period of this voltage signal to control opening of this DC/DC modular converter 14
Close, or the height of output voltage reaches the mesh of light modulation to control the adjustment of switch and the power loaded
's.
Compared with prior art, described touch key-press integral LED driver 100 can simultaneously with touch,
Button two ways carries out instant on switch or brightness adjustment control to load such as LED, and this makes setting of LED lamp
Meter can be more flexible, also can have tradition and novel control mode simultaneously.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all at this
Bright spirit and interior made any amendment, equivalent and the improvement etc. of principle, should be included in the present invention
Protection domain interior.
Claims (9)
1. a touch key-press integral LED driver, it is characterised in that: described LED driver includes one
Individual signal input module, and a signal detection module being electrically connected with this signal input module,
Described signal input module includes a touch input control module, a key-press input control module,
And an electric capacity, described touch input control module is arranged in parallel with key-press input control module, with
Described touch input control module after Shi Binglian together with key-press input control module with described electric capacity string
Connection, the output of described electric capacity is electrically connected with signal detection module.
2. touch key-press integral LED driver as claimed in claim 1, it is characterised in that: described LED
Driver also includes that a power module, this power module are electrically connected with signal detection module, think
This signaling module is powered.
3. touch key-press integral LED driver as claimed in claim 1, it is characterised in that: described LED
Driver also includes that a control module, this control module and signal detection module are electrically connected with to receive
The output signal of this signal detection module, and export control signal according to this output signal.
4. touch key-press integral LED driver as claimed in claim 3, it is characterised 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 characterised 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 according to this height
The presence or absence of voltage signal exports control signal with the persistent period.
6. touch key-press integral LED driver as claimed in claim 3, it is characterised in that: described LED
Driver also includes a DC/DC modular converter, and this DC/DC modular converter is electrical with control module
Connect, carry out being switched on or off load with the output signal according to described control module, or adjust output
Give the size of the power of load.
7. touch key-press integral LED driver as claimed in claim 1, it is characterised in that: described touch
Input control module includes a touch dish, when described touch input control module has signal to input,
The output signal of described signal input module is capacitance and described touch dish and the earth of described electric capacity
Between formation parasitic capacitance capacitance series connection after value.
8. touch key-press integral LED driver as claimed in claim 1, it is characterised in that: press when described
When key input control module has signal to input, the output signal of described signal input module is described electric capacity
Capacitance.
9. the touch key-press integral LED driver as described in any one in claim 7 or 8, its feature
It is: described signal detection module includes a capacitance-sensitive range intervals, this capacitance-sensitive scope district
Between comprise the value of the capacitance after described electric capacity is connected and the capacitance of described electric capacity 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 |
Applications Claiming Priority (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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| Publication Number | Publication Date |
|---|---|
| CN104080234A CN104080234A (en) | 2014-10-01 |
| CN104080234B true CN104080234B (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310125201.XA Active CN104080234B (en) | 2013-03-28 | 2013-03-28 | A kind of touch key-press integral LED driver |
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Families Citing this family (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 | Touch key 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 | Touch-key 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 | Touch key 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 | Touch-key integrated LED driver |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104080234A (en) | 2014-10-01 |
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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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