CN202414905U - Touch button for capacitive elevators - Google Patents
Touch button for capacitive elevators Download PDFInfo
- Publication number
- CN202414905U CN202414905U CN2011205472405U CN201120547240U CN202414905U CN 202414905 U CN202414905 U CN 202414905U CN 2011205472405 U CN2011205472405 U CN 2011205472405U CN 201120547240 U CN201120547240 U CN 201120547240U CN 202414905 U CN202414905 U CN 202414905U
- Authority
- CN
- China
- Prior art keywords
- condenser
- circuit
- touch button
- touch
- elevator according
- 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.)
- Expired - Lifetime
Links
Landscapes
- Electronic Switches (AREA)
Abstract
The utility model relates to touch button for capacitive elevators, comprising a touch sensor, a one-button touch chip and an amplification circuit, which are connected in sequence; and an electrostatic protection circuit is connected between the touch sensor and the one-button touch chip. According to the utility model, the electrostatic protection circuit is additionally arranged behind the touch sensor, so that the electrostatic interference to products is effectively suppressed. The touch button for capacitive elevators also comprises a voltage stabilization circuit which is used for keeping the whole circuit in stable voltage state.
Description
Technical field
The utility model relates to the electrical control field of elevator, particularly relates to a kind of condenser elevator and uses the touch button circuit.
Background technology
In the prior art, traditional elevator adopts the mechanical switch button, and product shape is bigger, and is attractive in appearance relatively poor with ease for use, and mechanical switch life number of times problem is arranged, and is difficult to satisfy the requirement of high-grade elevator.Though the condenser elevator can solve short technical matters of mechanical switch life-span with touch button; But owing to adopt the metal inductive sheet as capacitor type touch switch; If dry weather; The people is easy to generate static when touching the metal inductive sheet, therefore possibly cause the condenser elevator to damage with touch button.
Summary of the invention
The utility model technical matters to be solved provides a kind of condenser elevator and uses touch button, can effectively prevent electrostatic interference.
The utility model solves the technical scheme that its technical matters adopted: provide a kind of condenser elevator to use touch button; Comprise bonded assembly touch sensible sheet, singly-bound touch chip, amplifying circuit successively, also be connected with electrostatic discharge protective circuit between said touch sensible sheet and the singly-bound touch chip.
Said electrostatic discharge protective circuit is made up of two series connected resistance.
Said amplification circuit output end is connected with filter capacitor.
The power end of said singly-bound touch chip also is connected with mu balanced circuit.
Said mu balanced circuit is a three terminal integrated voltage stabilizer.
The input end of said mu balanced circuit is parallel with input filter capacitor.
The mouth of said mu balanced circuit is parallel with output filter capacitor.
The input end of said mu balanced circuit is parallel with transient voltage and suppresses diode.
The input end of said mu balanced circuit also is connected with the diode that is used to prevent electric voltage reverse-connection.
Beneficial effect
Owing to adopted above-mentioned technical scheme, the utility model compared with prior art has following advantage and good effect: the utility model is set up electrostatic discharge protective circuit behind the touching type induction sheet, has effectively suppressed the interference of static to product.The utility model comprises that also mu balanced circuit makes entire circuit be in the voltage stabilizing state all the time.
Description of drawings
Fig. 1 is the circuit diagram of the utility model;
Fig. 2 is the circuit diagram of mu balanced circuit in the utility model.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiment only to be used to the utility model is described and be not used in the restriction the utility model scope.Should be understood that in addition those skilled in the art can do various changes or modification to the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
The embodiment of the utility model relates to a kind of condenser elevator and uses touch button; As shown in Figure 1; Comprise bonded assembly touch sensible sheet 1, singly-bound touch chip 2, amplifying circuit 3 successively, also be connected with electrostatic discharge protective circuit 4 between said touch sensible sheet 1 and the singly-bound touch chip 2.
Said electrostatic discharge protective circuit is made up of two series connected 10k resistance, and between two series resistances, connects a ground capacitance, can effectively suppress the interference that static produces product through two series connected 10k resistance.In Fig. 1, amplifying circuit adopts an aerotron to realize, can certainly adopt op amp to realize, also is provided with a filter capacitor at the mouth of amplifying circuit, and output signal is carried out filtering.
Said singly-bound touch chip adopts the QT100 chip, and the SNS end of chip links to each other with the mouth of electrostatic discharge protective circuit with the SNSK end, SYNC/MODE end and VSS end ground connection, and the input end of OUT termination amplifying circuit, vdd terminal power connection end, power end also is connected with mu balanced circuit.
As shown in Figure 2, mu balanced circuit is a three terminal integrated voltage stabilizer, and the input end of three terminal integrated voltage stabilizer is parallel with input filter capacitor; This filter capacitor is the filtering high-frequency signal effectively; Input end also is parallel with transient voltage and suppresses diode, and this transient voltage suppresses diode when input moment high energy impact events, and it can reduce its impedance with high speed (nanosecond) suddenly; Absorb a big electric current simultaneously; With the voltage clamp between its two ends on a predetermined numerical value, thereby the circuit component of guaranteeing the back avoid the high-octane impact of transient state and damage, the input end of said mu balanced circuit also is connected with the diode that is used to prevent electric voltage reverse-connection.
Be not difficult to find that the utility model is set up electrostatic discharge protective circuit behind the touching type induction sheet, effectively suppressed the interference of static to product.The utility model comprises that also mu balanced circuit makes entire circuit be in the voltage stabilizing state all the time.
Claims (9)
1. a condenser elevator is used touch button, comprises bonded assembly touch sensible sheet (1), singly-bound touch chip (2), amplifying circuit (3) successively, it is characterized in that, also is connected with electrostatic discharge protective circuit (4) between said touch sensible sheet (1) and the singly-bound touch chip (2).
2. condenser elevator according to claim 1 is used touch button, it is characterized in that, said electrostatic discharge protective circuit (4) is made up of two series connected resistance.
3. condenser elevator according to claim 1 is used touch button, it is characterized in that, said amplifying circuit (3) mouth is connected with filter capacitor.
4. condenser elevator according to claim 1 is used touch button, it is characterized in that, the power end of said singly-bound touch chip (2) also is connected with mu balanced circuit.
5. condenser elevator according to claim 4 is used touch button, it is characterized in that, said mu balanced circuit is a three terminal integrated voltage stabilizer.
6. condenser elevator according to claim 4 is used touch button, it is characterized in that, the input end of said mu balanced circuit is parallel with input filter capacitor.
7. condenser elevator according to claim 4 is used touch button, it is characterized in that, the mouth of said mu balanced circuit is parallel with output filter capacitor.
8. condenser elevator according to claim 4 is used touch button, it is characterized in that, the input end of said mu balanced circuit is parallel with transient voltage and suppresses diode.
9. condenser elevator according to claim 4 is used touch button, it is characterized in that, the input end of said mu balanced circuit also is connected with the diode that is used to prevent electric voltage reverse-connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205472405U CN202414905U (en) | 2011-12-23 | 2011-12-23 | Touch button for capacitive elevators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205472405U CN202414905U (en) | 2011-12-23 | 2011-12-23 | Touch button for capacitive elevators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202414905U true CN202414905U (en) | 2012-09-05 |
Family
ID=46739689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205472405U Expired - Lifetime CN202414905U (en) | 2011-12-23 | 2011-12-23 | Touch button for capacitive elevators |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202414905U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105009049A (en) * | 2013-03-13 | 2015-10-28 | 3M创新有限公司 | Capacitive-based touch apparatus and method therefor, with reduced interference |
| CN109508114A (en) * | 2018-12-03 | 2019-03-22 | 努比亚技术有限公司 | A kind of touch-control circuit, touch panel and mobile terminal |
| CN110470801A (en) * | 2019-09-06 | 2019-11-19 | 北京工业大学 | It is a kind of interior combustable gas concentration detection alarm and display device |
-
2011
- 2011-12-23 CN CN2011205472405U patent/CN202414905U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105009049A (en) * | 2013-03-13 | 2015-10-28 | 3M创新有限公司 | Capacitive-based touch apparatus and method therefor, with reduced interference |
| CN105009049B (en) * | 2013-03-13 | 2019-07-05 | 3M创新有限公司 | Interfere the touch apparatus and its application method based on capacitor reduced |
| CN109508114A (en) * | 2018-12-03 | 2019-03-22 | 努比亚技术有限公司 | A kind of touch-control circuit, touch panel and mobile terminal |
| CN110470801A (en) * | 2019-09-06 | 2019-11-19 | 北京工业大学 | It is a kind of interior combustable gas concentration detection alarm and display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102761110A (en) | Power supply delay circuit | |
| CN202414905U (en) | Touch button for capacitive elevators | |
| CN203233159U (en) | MP3 player with electrostatic protection and surge protection | |
| CN203086135U (en) | Industrial switch direct current power supply port protection circuit | |
| CN202083932U (en) | Multipath digital quantity input circuit based on Darlington transistor array | |
| CN203233162U (en) | Surge protection device | |
| CN103064536A (en) | Wireless touch pen system | |
| CN203882882U (en) | External relay drive circuit | |
| CN206388648U (en) | A kind of temperature switch for carrying capacitance-resistance arc-control device | |
| CN203691366U (en) | Thyristor driving circuit suitable for high-voltage TSC reactive power compensator | |
| CN202364110U (en) | High-voltage inversion protection circuit | |
| CN201854178U (en) | Practical overcurrent protecting circuit | |
| CN204992574U (en) | Servo driver input Y condenser network | |
| CN204807617U (en) | Peak value detection circuit | |
| CN203233171U (en) | Interference-protection MP4 player | |
| CN203233365U (en) | Low noise amplifier with encapsulated and protective circuit | |
| CN201876496U (en) | Phase detection circuit | |
| CN101968753A (en) | Powder down memory circuit | |
| CN201813152U (en) | IGBT (Insulated Gate Bipolar Transistor) overcurrent protective device | |
| CN204680373U (en) | The special driving circuit of DVD motor | |
| CN203205861U (en) | MP3 player having electrostatic protection function | |
| CN204244199U (en) | A kind of startup buffer circuit | |
| CN205283898U (en) | Prevent current rush's when LED opens drive circuit | |
| CN202362377U (en) | Voltage sampling signal processing circuit of single-phase electronic electric energy meter | |
| CN206865432U (en) | Touch key-press circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120905 |