CN106341109A - Concise rigid touch induction circuit - Google Patents
Concise rigid touch induction circuit Download PDFInfo
- Publication number
- CN106341109A CN106341109A CN201610779170.3A CN201610779170A CN106341109A CN 106341109 A CN106341109 A CN 106341109A CN 201610779170 A CN201610779170 A CN 201610779170A CN 106341109 A CN106341109 A CN 106341109A
- Authority
- CN
- China
- Prior art keywords
- circuit
- touch
- touch induction
- succinct
- rigid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/96—Touch switches
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
- H03K2217/96—Touch switches
- H03K2217/96038—Inductive touch switches
Landscapes
- Electronic Switches (AREA)
Abstract
The invention discloses a concise rigid touch induction circuit which comprises a touch induction part circuit, an inverted pai shaped processing part circuit and a signal amplification output part circuit, wherein the inverted pai shaped processing part circuit is connected with the touch induction part circuit, and the signal amplification output part circuit is connected with the inverted pai shaped processing part circuit. The touch induction circuit is concise and rigid, and the touch induction sensitivity and reliability of the touch induction circuit are not influenced by change of regions or seasons.
Description
Technical field
Present invention relates particularly to a kind of succinct rigid touch induction circuit.
Background technology
Touch control is seen everywhere in daily life.The touch induction circuit of touch control is also in riotous profusion colorful to be had
The composition such as audion or technotron, also there is the chip such as cmos logic gates or 555 time base circuits to constitute, also
Special touch circuit chip is constituted.No matter but be that a kind of that device is constituted, the principle of its touch sensible is mostly similar, and greatly
There is a problem of more or less: the touch induction circuit such as having is with the change of region and its touch sensible of the conversion in season more
Sensitivity also change therewith.Especially than (in the rich kitchen as vapor) in relatively rugged environment or even occur by mistake
Action.
Content of the invention
For overcoming the problems of the prior art, the invention provides a kind of not shadow because of the conversion in the change of region and season
Ring the sensitivity of its touch sensible and the succinct rigid touch induction circuit of reliability.
The technology of employing and method in order to solve the problems, such as the above-mentioned present invention are as follows:
A kind of succinct rigid touch induction circuit, includes touch sensible partial circuit, the shape of falling π pretreatment portion parallel circuit
Amplify output par, c circuit with signal, the described shape of falling π pretreatment portion parallel circuit is connected with touch sensible partial circuit, described letter
Number amplify output par, c circuit be connected with the shape of falling π pretreatment portion parallel circuit.
Further, described touch sensible partial circuit is made up of touch sheet or touch bar.
Further, the described shape of falling π pretreatment portion parallel circuit is made up of resistance.
Further, described signal amplifies output par, c circuit and is made up of amplifying device.
The invention has the benefit that circuit structure is succinct, low cost is highly reliable, and touch control is secure, not because of region
Change and the conversion in season and affect sensitivity and the reliability of its touch sensible, thus present invention can be widely used to various
The touch control in place.
Brief description
Fig. 1 is the block diagram of a kind of succinct rigid touch induction circuit of the present invention；
Fig. 2 is the principle sketch of a kind of succinct rigid touch induction circuit of the present invention；
Fig. 3 is the circuit reduction figure of a kind of succinct rigid touch induction circuit of the present invention；
Fig. 4 is the output waveform sketch of a kind of succinct rigid touch induction circuit of the present invention；
Fig. 5 is the output waveform sketch of existing touch induction circuit.
Specific embodiment
With reference to embodiment, the present invention is described in further detail with accompanying drawing, but they are not to skill of the present invention
The restriction of art scheme, based on present invention teach that any conversion of being made, all falls within protection scope of the present invention.
A kind of succinct rigid touch induction circuit, its circuit structure as shown in figure 1, include touch sensible partial circuit,
The shape of falling π pretreatment portion parallel circuit, signal amplify output par, c circuit.Described touch sensible partial circuit touches in order to finger sensing
The information touched, and the information transmission of sensing collection is given the described shape of falling π pretreatment portion parallel circuit, it is the information that sensing is collected
Make the jamproof pretreatment of " π " type；Described signal amplifies output par, c circuit, is to amplify pretreated signal further
Until output.Below each module is described in detail:
Touch sensible partial circuit: be made up of touch sheet or touch bar etc..Such as touch sensible sheet metal, conductive rubber strip
Etc. perceiving the touch information of finger etc..
The shape of falling π pretreatment portion parallel circuit: be mainly made up of several resistance etc..As seen from Figure 2, its touch input end quilt
Resistance ra has moved the level of power supply vcc to, and ra, r1 and r2 constitute down " π " structure, and this has raised for touch induction circuit and has permitted
Permitted " threshold " of input signal strength, in other words namely intercepted " invasion " of the interference signal of those " not improving grade ".
Signal amplifies output par, c circuit: is mainly made up of amplifying device, such as audion, mos pipe etc..In Fig. 2 then
Two audions are had to constitute, in order to the amplification of touch sensible detection signal and its output.
The operation principle of the present invention is as follows: touch induction circuit principle is as shown in Figure 2.The week when touch sheet m is touched
The electromagnetic energy enclosing, using human body as antenna, passes to the sensing input of touch sheet m by finger, constitutes " π " shape through ra, r1 and r2
Circuit pretreatment, enters you and is amplified the useful signal of output touch sensible by q1, q2.
In fact, the circuit that the touch sensible that in daily life, people touch controls is (no matter be audion or junction type field effect
Should manage or cmos logic gates or 555 time base circuits), its principle all can be reduced to similar to the touch sensible control shown in Fig. 3
Circuit processed.Compared with Fig. 3 by Fig. 2 and can be seen that almost the only much poorer one resistance ra that will touch end pull-up.Also just because of having
What it was constituted fall " π " shape circuit, so that raised " threshold " that touch sensible allows input signal strength, in other words namely
Intercept " invasion " of the interference signal of those " not improving grade ", thus improving the capacity of resisting disturbance of touch induction circuit.?
The characteristic that touch sensible controls is made to have the distillation from " soft " to " firm ".Fig. 4 is the output of inventive touch sensor circuit Fig. 2
End " out " point oscillograph detect, finger touching in touch sheet m when output waveform be one more stable
" just " straight line；Fig. 5 be traditional touch induction circuit Fig. 3 outfan " out " point oscillograph detect, finger touch
Output waveform when touching in touch sheet m is the erratic waveform of " soft ".It can be seen that inventive touch
The difference of sensor circuit and in the past other touch induction circuits.In order to obtain the instantaneity of waveforms detection as far as possible, special figure
2nd, the resistance r3 in Fig. 3 and electric capacity c1 eliminates.
Application Example a: enterprise producing the intelligent elevated kitchen cabinet in kitchen, they are to be touched with touch bar
Control.After-sale service reflects, the sensitivity that the region sold away different (as south and the north) controls also tends to different；
Furthermore touch bar area is larger, and in kitchen, vapor is more in addition, therefore even misoperation occurs.For this, they have attempted very
How existing touch induction circuit, but result all similar could not solve problem, used inventive touch faradism later instead
Road, Resolving probiems.
The invention has the benefit that circuit structure is succinct, low cost is highly reliable, and touch control is secure, not because of region
Change and the conversion in season and affect sensitivity and the reliability of its touch sensible, thus present invention can be widely used to various
Place touch control.
The above, the only specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, and any
The change or replacement expected without creative work, all should be included within the scope of the present invention, therefore, the present invention's
Protection domain should be defined by the protection domain that claims are limited.
Claims (4)
1. a kind of succinct rigid touch induction circuit it is characterised in that: include touch sensible partial circuit, the shape of falling π is located in advance
Reason partial circuit and signal amplify output par, c circuit, the described shape of falling π pretreatment portion parallel circuit and touch sensible partial circuit phase
Connect, described signal is amplified output par, c circuit and is connected with the shape of falling π pretreatment portion parallel circuit.
2. succinct rigid touch induction circuit according to claim 1 it is characterised in that: described touch sensible is partly electric
Route touch sheet or touch bar are constituted.
3. succinct rigid touch induction circuit according to claim 2 it is characterised in that: the described shape of falling π pretreatment portion
Parallel circuit is made up of resistance.
4. succinct rigid touch induction circuit according to claim 3 it is characterised in that: described signal amplifies output section
Parallel circuit is made up of amplifying device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610779170.3A CN106341109A (en) | 2016-08-31 | 2016-08-31 | Concise rigid touch induction circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610779170.3A CN106341109A (en) | 2016-08-31 | 2016-08-31 | Concise rigid touch induction circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106341109A true CN106341109A (en) | 2017-01-18 |
Family
ID=57823556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610779170.3A Pending CN106341109A (en) | 2016-08-31 | 2016-08-31 | Concise rigid touch induction circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106341109A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107809823A (en) * | 2017-10-26 | 2018-03-16 | 卢耀庆 | A kind of LED lamplight touch dimmer |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2103223U (en) * | 1991-11-11 | 1992-04-29 | 黄国梁 | Multifunction touching switch |
| CN101019322A (en) * | 2004-06-24 | 2007-08-15 | 触摸传感器技术有限责任公司 | EMI resistant balanced touch sensor and method |
| CN200947594Y (en) * | 2006-06-23 | 2007-09-12 | 丁文龙 | Capacitor induced touch circuit |
| CN201163766Y (en) * | 2008-01-31 | 2008-12-10 | 杭州利尔达科技有限公司 | Oscillation type capacitance induction touch press key |
| CN201163765Y (en) * | 2008-01-31 | 2008-12-10 | 杭州利尔达科技有限公司 | Capacitance induction type touch press key |
| CN101499794A (en) * | 2008-01-31 | 2009-08-05 | 杭州利尔达科技有限公司 | Capacitor induction type touch press-key and measuring method for touch press-key capacitor |
| CN201352786Y (en) * | 2009-01-07 | 2009-11-25 | 江苏惠通集团有限责任公司 | Discrete piezoelectric touch keystroke |
| CN201717846U (en) * | 2010-06-17 | 2011-01-19 | 美的集团有限公司 | Touch induction circuit of induction cooker |
| CN102541330A (en) * | 2010-12-27 | 2012-07-04 | 上海天马微电子有限公司 | Touch screen and touch display device |
| CN102571049A (en) * | 2011-12-20 | 2012-07-11 | 利尔达科技有限公司 | Anti-interference circuit and anti-interference method for touch key of induction cooker |
| CN102684666A (en) * | 2012-05-22 | 2012-09-19 | 李宝恒 | Touch sensing key circuit for induction cooker |
-
2016
- 2016-08-31 CN CN201610779170.3A patent/CN106341109A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2103223U (en) * | 1991-11-11 | 1992-04-29 | 黄国梁 | Multifunction touching switch |
| CN101019322A (en) * | 2004-06-24 | 2007-08-15 | 触摸传感器技术有限责任公司 | EMI resistant balanced touch sensor and method |
| CN200947594Y (en) * | 2006-06-23 | 2007-09-12 | 丁文龙 | Capacitor induced touch circuit |
| CN201163766Y (en) * | 2008-01-31 | 2008-12-10 | 杭州利尔达科技有限公司 | Oscillation type capacitance induction touch press key |
| CN201163765Y (en) * | 2008-01-31 | 2008-12-10 | 杭州利尔达科技有限公司 | Capacitance induction type touch press key |
| CN101499794A (en) * | 2008-01-31 | 2009-08-05 | 杭州利尔达科技有限公司 | Capacitor induction type touch press-key and measuring method for touch press-key capacitor |
| CN201352786Y (en) * | 2009-01-07 | 2009-11-25 | 江苏惠通集团有限责任公司 | Discrete piezoelectric touch keystroke |
| CN201717846U (en) * | 2010-06-17 | 2011-01-19 | 美的集团有限公司 | Touch induction circuit of induction cooker |
| CN102541330A (en) * | 2010-12-27 | 2012-07-04 | 上海天马微电子有限公司 | Touch screen and touch display device |
| CN102571049A (en) * | 2011-12-20 | 2012-07-11 | 利尔达科技有限公司 | Anti-interference circuit and anti-interference method for touch key of induction cooker |
| CN102684666A (en) * | 2012-05-22 | 2012-09-19 | 李宝恒 | Touch sensing key circuit for induction cooker |
Non-Patent Citations (2)
| Title |
|---|
| 张志成: "4×4电容式触摸键盘的设计与实现", 《工业仪表与自动化装置》 * |
| 王鹏: ""拉电阻在数字电路中的应用"", 《河南机电高等专科学校学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107809823A (en) * | 2017-10-26 | 2018-03-16 | 卢耀庆 | A kind of LED lamplight touch dimmer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102915138B (en) | Sensor electrode array control circuit, control method and touch-control sensing system thereof | |
| CN100419655C (en) | Touch type induction device | |
| WO2011074911A3 (en) | Touch cell structure of a touch panel and the touch panel using the same | |
| CN102902393B (en) | Detecting electrode Array Control Circuit, control method and touch detection system thereof | |
| DE602004027705D1 (en) | TOUCH DETECTION FOR A DIGITIZER | |
| CN203688638U (en) | Device for detecting resistive leakage current of metal oxide lightning arrester | |
| CN103475352A (en) | Detection circuit of capacitor touch key | |
| JPWO2016121045A1 (en) | Electrostatic pen | |
| CN106341109A (en) | Concise rigid touch induction circuit | |
| CN108475130B (en) | Delta modulator receiving channel for capacitance measurement circuit | |
| CN104811145B (en) | amplifying circuit and touch sensing system | |
| CN106056052B (en) | A kind of fingerprint collecting circuit | |
| CN203858481U (en) | RTU embedded system signal integrity detection interface circuit plate | |
| CN204314415U (en) | A kind of electrical heating wire broken thread detector | |
| TWI680399B (en) | Touch circuit | |
| CN109861647A (en) | A kind of low noise high-precision amplification circuit | |
| CN202231680U (en) | Microwave signal amplification and rectification circuit | |
| CN202889317U (en) | Capacitance type touch key circuit | |
| CN104102384A (en) | touch detection circuit | |
| CN201418069Y (en) | Touch control induction circuit of induction cooker | |
| CN203278792U (en) | Structure capable of realizing switching function of mechanical key by means of capacitive touch detection chip | |
| CN203405795U (en) | Receiving and transmitting circuit of infrared touch screen and infrared touch screen | |
| CN203554405U (en) | Detection circuit of capacitive touch keys | |
| CN103595354A (en) | Photovoltaic small-signal acquisition and amplification circuit of ultraviolet and visible spectrophotometer | |
| CN203039601U (en) | Improved rectifying and amplifying circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20170118 |