CN107800419A - A kind of button, electronic circuit, keyboard - Google Patents
A kind of button, electronic circuit, keyboard Download PDFInfo
- Publication number
- CN107800419A CN107800419A CN201610805615.0A CN201610805615A CN107800419A CN 107800419 A CN107800419 A CN 107800419A CN 201610805615 A CN201610805615 A CN 201610805615A CN 107800419 A CN107800419 A CN 107800419A
- Authority
- CN
- China
- Prior art keywords
- button
- conductive
- electric capacity
- resistor
- nodes
- 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
- H03K17/962—Capacitive touch switches
- H03K17/9622—Capacitive touch switches using a plurality of detectors, e.g. keyboard
Landscapes
- Input From Keyboards Or The Like (AREA)
Abstract
A kind of button, it is characterised in that：By two electrodes, conductive button, it is conductively connected and forms；Conductive button is between two electrodes；Conductive keytop is conductive；There is stable be conductively connected between the conductive surface of conductive button and an electrode；It is all in be electrically connected that conductive button, which presses rear conductive button and two electrodes,.A kind of electronic circuit, there is foregoing button, first resistor（R1）, second resistance（R2）, 3rd resistor（R3）, the 4th resistance（R4）, the first electric capacity（C1）, the second electric capacity（C2）, the 3rd electric capacity（C3）, diode（D1）, A/D nodes, PWM nodes, GND nodes.A kind of computer keyboard, there is foregoing button.The present invention can export the information whether finger touches button, and this information can be used for reducing key errors.
Description
Technical field
The invention belongs to electronic applications, and in particular to a kind of button, electronic circuit, keyboard.
Background technology
Computer key formula keyboard is due to good tactile feedback, being widely used in computer or other electronic circuits；
Often there is situation about pressing the wrong button but this is for not familiar computer user, during touch system, particularly with computer
For the player to play as amusement, the accuracy of button often determines impression (such as victory or defeat) of the game to player；It is existing
Computer keyboard the rare function of preventing key errors of button, be worth improve, can feel so the invention provides one kind
Know the button of user's finger position, if this button use on computer keyboard, and the user's finger that will be perceived
The presentation of information of position provides the prompting of a finger position on screen for user, then is reduced user and presses the wrong button.
The content of the invention
The purpose of the present invention is to solve the shortcomings of the prior art a kind of button is proposed, to reduce key errors.
The present invention has following technology contents：
1st, a kind of button, it is characterised in that：By two electrodes, conductive button, it is conductively connected and forms；Conductive button is located at two
Between individual electrode；
Conductive keytop is conductive；
There is stable be conductively connected between the conductive surface of conductive button and an electrode；
It is all in be electrically connected that conductive button, which presses rear conductive button and two electrodes,.
2nd, a kind of button as described in technology contents 1, it is characterised in that：Described conductive telegraph key is made of metal.
3rd, a kind of button as described in technology contents 1, it is characterised in that：Described is conductively connected as metal spring.
4th, a kind of button as described in technology contents 1, it is characterised in that：Described electrode is by the conductive node on wiring board
Form.
5th, a kind of electronic circuit, it is characterised in that：With the button described in technology contents 1, first resistor (R1), the second electricity
Hinder (R2), 3rd resistor (R3), the 4th resistance (R4), the first electric capacity (C1), the second electric capacity (C2), the 3rd electric capacity (C3), two poles
Manage (D1), A/D nodes, PWM nodes, GND nodes；
Button is in be electrically connected with positive pole of the conductive button with the stable electrode being conductively connected and diode (D1)；
Button is in be electrically connected with GND nodes not with the electrode that conductive button is stably connected with；
One end of the positive pole of diode (D1) and second resistance (R2) is in be electrically connected；
One end of the positive pole of diode (D1) and the 3rd electric capacity (C3) is in be electrically connected；
Second resistance (R2) forms series circuit with 3rd resistor (R3), and second resistance (R2) is formed with 3rd resistor (R3)
Series circuit be in parallel with diode (D1)；
Second electric capacity (C2) is in parallel with 3rd resistor (R3)；
One end of first resistor (R1) is connected with the common point of 3rd resistor (R3) and second resistance (R2)；
First resistor (R1) forms series circuit with the first electric capacity (C1), and first resistor (R1) is formed with the first electric capacity (C1)
Series circuit be in parallel with the second electric capacity (C2)；
First electric capacity (C1), the second electric capacity (C2), 3rd resistor (R3), diode negative pole common point and GND nodes
It is connected；
4th resistance (R4) is connected between PWM nodes and the 3rd electric capacity (C3)；
Common point between A/D nodes and first resistor (R1), the first electric capacity (C1) is connected.
6th, a kind of computer keyboard, it is characterised in that：With the button described in technology contents 1.
The present invention core concept be：Make keyboard with it is key induced while with touch sensible.
The beneficial effects of the present invention are：The present invention can export the information whether finger touches button, this information
It can be used for reducing key errors.
Brief description of the drawings
Fig. 1 is that the button of embodiment 1 does not touch timely schematic diagram by finger, and a is button schematic diagram in Fig. 1, and b is equivalent
Circuit diagram.
Fig. 2 be the button of embodiment 1 touched but schematic diagram when not being pressed, a is button schematic diagram in Fig. 2, b
For equivalent circuit diagram, human body is equivalent to an electric capacity when finger is touched but is not pressed.
Fig. 3 is that the schematic diagram when button of embodiment 1 is pressed is intended to, and a is button schematic diagram in Fig. 3, and b is equivalent
Circuit diagram, human body are equivalent to an electric capacity, but by key institutes short circuit between Y ends and ground terminal GND.
Fig. 4 is the schematic diagram of embodiment 2.
Embodiment
Embodiments of the present invention are illustrated below in conjunction with embodiment.
Embodiment 1, a kind of button, by two electrodes 1,2, conductive button, be conductively connected and form；
Conductive button is between electrode 1 and electrode 2；
Conductive keytop is conductive；
There is stable be conductively connected between the conductive surface and electrode 1 of conductive button；
It is all in be electrically connected that conductive button, which presses rear conductive button and two electrodes,；
Conductive telegraph key is made of metal；
It is conductively connected as metal spring；
Electrode is made up of the conductive node on wiring board；
Those skilled in the art, which combine prior art, common knowledge, can pass through Y ends in the appropriate circuit of Y ends connection
Electricity situation between ground terminal GND judges situation that conductive telegraph key is touched and pressed；Appropriate it is used to carry so as to obtain
Show the information of user's finger institute touch location.
Embodiment 2, such as Fig. 4, a kind of electronic circuit, with the button described in embodiment 1, first resistor R1, second
Resistance R2,3rd resistor R3, the 4th resistance R4, the first electric capacity C1, the second electric capacity C2, the 3rd electric capacity C3, diode D1, A/D section
Point, PWM nodes, GND nodes；
Button is in be electrically connected with positive pole of the conductive telegraph key with the stable electrode being conductively connected and diode D1；
Button is in be electrically connected with GND nodes not with the electrode that conductive telegraph key is stably connected with；
Diode D1 positive pole and second resistance R2 one end are in be electrically connected；
Diode D1 positive pole and the 3rd electric capacity C3 one end are in be electrically connected；
Second resistance R2 and 3rd resistor R3 forms series circuit, the series electrical that second resistance R2 and 3rd resistor R3 is formed
Road is in parallel with diode D1；
Second electric capacity C2 and 3rd resistor R3 is in parallel；
First resistor R1 one end is connected with 3rd resistor R3 and second resistance R2 common point；
First resistor R1 and the first electric capacity C1 forms series circuit, the series electrical that first resistor R1 and the first electric capacity C1 are formed
Road is in parallel with the second electric capacity C2；
First electric capacity C1, the second electric capacity C2,3rd resistor R3, the common point of negative pole of diode are connected with GND nodes；
4th resistance R4 is connected between PWM nodes and the 3rd electric capacity C3；
Common point between A/D nodes and first resistor R1, the first electric capacity C1 is connected.
The circuit part of this embodiment is a capacitance measurement circuit, and PWM nodes are pwm signal input point, A/D nodes
For A/D sampled points, when conductive telegraph key is not touched, the magnitude of voltage highest of A/D nodes；When conductive telegraph key is touched, A/D nodes
Magnitude of voltage reduce；When conductive telegraph key is pressed, the magnitudes of voltage of A/D nodes is close to zero；Therefore this embodiment can embody conduction
Not touched, the conductive telegraph key of telegraph key is touched but is not pressed, three kinds of states that conductive telegraph key is pressed；Inputted in PWM nodes
Pwm signal, three kinds of states of conductive telegraph key can be sensed in A/D node collection voltages values.
Embodiment 3, embodiment 1 is used for computer keyboard.
Above embodiment is the representative instance of the present invention but is not limitation of the invention.
Claims (6)
- A kind of 1. button, it is characterised in that：By two electrodes, conductive button, it is conductively connected and forms；Conductive button is located at two electricity Between pole；Conductive keytop is conductive；There is stable be conductively connected between the conductive surface of conductive button and an electrode； It is all in be electrically connected that conductive button, which presses rear conductive button and two electrodes,.
- A kind of 2. button as claimed in claim 1, it is characterised in that：Described conductive telegraph key is made of metal.
- A kind of 3. button as claimed in claim 1, it is characterised in that：Described is conductively connected as metal spring.
- A kind of 4. button as claimed in claim 1, it is characterised in that：Described electrode is by the conductive node structure on wiring board Into.
- A kind of 5. electronic circuit, it is characterised in that：With the button described in claim 1, first resistor (R1), second resistance (R2), 3rd resistor (R3), the 4th resistance (R4), the first electric capacity (C1), the second electric capacity (C2), the 3rd electric capacity (C3), diode (D1), A/D nodes, PWM nodes, GND nodes；Button is in be electrically connected with positive pole of the conductive button with the stable electrode being conductively connected and diode (D1)；Button is in be electrically connected with GND nodes not with the electrode that conductive button is stably connected with；One end of the positive pole of diode (D1) and second resistance (R2) is in be electrically connected；One end of the positive pole of diode (D1) and the 3rd electric capacity (C3) is in be electrically connected；Second resistance (R2) forms series circuit, the string that second resistance (R2) is formed with 3rd resistor (R3) with 3rd resistor (R3) Connection circuit is in parallel with diode (D1)；Second electric capacity (C2) is in parallel with 3rd resistor (R3)；One end of first resistor (R1) is connected with the common point of 3rd resistor (R3) and second resistance (R2)；First resistor (R1) forms series circuit, the string that first resistor (R1) is formed with the first electric capacity (C1) with the first electric capacity (C1) Connection circuit is in parallel with the second electric capacity (C2)；First electric capacity (C1), the second electric capacity (C2), 3rd resistor (R3), the common point of negative pole of diode are connected with GND nodes；4th resistance (R4) is connected between PWM nodes and the 3rd electric capacity (C3)；Common point between A/D nodes and first resistor (R1), the first electric capacity (C1) is connected.
- A kind of 6. computer keyboard, it is characterised in that：With the button described in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610805615.0A CN107800419A (en) | 2016-09-07 | 2016-09-07 | A kind of button, electronic circuit, keyboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610805615.0A CN107800419A (en) | 2016-09-07 | 2016-09-07 | A kind of button, electronic circuit, keyboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107800419A true CN107800419A (en) | 2018-03-13 |
Family
ID=61529931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610805615.0A Pending CN107800419A (en) | 2016-09-07 | 2016-09-07 | A kind of button, electronic circuit, keyboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107800419A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1030074A (en) * | 1963-09-11 | 1966-05-18 | Siemens Ag | Push-button-operated electrical control circuit arrangements |
| CN201518478U (en) * | 2009-09-25 | 2010-06-30 | 赣州市英唐电子科技有限公司 | Capacitive touch induction circuit |
| CN202957802U (en) * | 2012-11-22 | 2013-05-29 | 广东新宝电器股份有限公司 | AD-based capacitive touch key circuit |
| CN203057106U (en) * | 2012-12-31 | 2013-07-10 | 湛江鸿智电器有限公司 | A button touch circuit |
| CN105308539A (en) * | 2013-01-04 | 2016-02-03 | 辛纳普蒂克斯公司 | Methods and apparatus for capacitively detecting key motion and finger presence on a magnetic keyboard key |
-
2016
- 2016-09-07 CN CN201610805615.0A patent/CN107800419A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1030074A (en) * | 1963-09-11 | 1966-05-18 | Siemens Ag | Push-button-operated electrical control circuit arrangements |
| CN201518478U (en) * | 2009-09-25 | 2010-06-30 | 赣州市英唐电子科技有限公司 | Capacitive touch induction circuit |
| CN202957802U (en) * | 2012-11-22 | 2013-05-29 | 广东新宝电器股份有限公司 | AD-based capacitive touch key circuit |
| CN203057106U (en) * | 2012-12-31 | 2013-07-10 | 湛江鸿智电器有限公司 | A button touch circuit |
| CN105308539A (en) * | 2013-01-04 | 2016-02-03 | 辛纳普蒂克斯公司 | Methods and apparatus for capacitively detecting key motion and finger presence on a magnetic keyboard key |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104951124B (en) | Touch detecting method and the touch detection device for performing it | |
| CN203149513U (en) | Touch screen panel | |
| CN206178745U (en) | Display device | |
| TWI308290B (en) | Touch panel | |
| TWI681426B (en) | Touch keyboard | |
| CN103984422B (en) | Capacitance pen, capacitance touching control panel and contactor control device | |
| TW201227448A (en) | Touch panel | |
| US11545319B2 (en) | Mechanical computer keyboard with analog input | |
| CN106990852A (en) | Input unit and electronic equipment | |
| CN201238405Y (en) | Touch control induction circuit of induction cooker | |
| CN107800419A (en) | A kind of button, electronic circuit, keyboard | |
| US20140092060A1 (en) | Touch panel | |
| CN206211968U (en) | One kind slides touch key-press structure | |
| CN202889317U (en) | Capacitance type touch key circuit | |
| TW201224898A (en) | Capacitive touch apparatus | |
| CN205230008U (en) | Capacitive touch panel's independent button and connection structure of touch -control chip | |
| CN107050853A (en) | A kind of game paddle and its touch control detecting method, a kind of game station | |
| CN201548919U (en) | Capacitance sensing type mouse | |
| CN201418069Y (en) | Touch control induction circuit of induction cooker | |
| CN204087172U (en) | A kind of key type capacitance touch screen of multi-point touch | |
| CN107003747A (en) | Electrostatic capacitive keyboard | |
| CN208985126U (en) | A kind of self-capacitance type touch panel and touch control display apparatus | |
| CN105373049B (en) | A kind of circuit for improving vehicle-mounted silica gel push-button reliability | |
| TW201810332A (en) | Key, electronic circuit and computer keyboard capable of outputting a message regarding whether a finger touches the key for reducing key errors | |
| CN202677361U (en) | Touch screen control circuit, touch screen and touch screen terminal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180313 |