CN106330161A - Optical coupling touch switch - Google Patents
Optical coupling touch switch Download PDFInfo
- Publication number
- CN106330161A CN106330161A CN201610892805.0A CN201610892805A CN106330161A CN 106330161 A CN106330161 A CN 106330161A CN 201610892805 A CN201610892805 A CN 201610892805A CN 106330161 A CN106330161 A CN 106330161A
- Authority
- CN
- China
- Prior art keywords
- optical coupling
- pin
- chip
- resistance
- electric capacity
- 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.)
- Withdrawn
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
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/16—Modifications for eliminating interference voltages or currents
- H03K17/161—Modifications for eliminating interference voltages or currents in field-effect transistor switches
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/40—Details of LED load circuits
Landscapes
- Electronic Switches (AREA)
Abstract
The invention discloses an optical coupling touch switch. The optical coupling touch switch is characterized by being mainly composed of an optical coupling chip U1, a current switch chip U2 and the like. According to the optical coupling touch switch, a human body only needs to touch different touch chips, an illuminating lamp can be turned on or turned off, and compared with a traditional mechanical switch, the optical coupling touch switch has the advantages that no mechanical wear is generated, the service life is longer, and the problem that the mechanical switch is prone to be damaged due to mechanical wear is effectively solved.
Description
Technical field
The present invention relates to a kind of soft-touch control, specifically refer to a kind of optical coupling soft-touch control.
Background technology
The illuminating lamp of domestic generally uses mechanical switch to control at present, is come by the conducting and Guan Bi controlling mechanical switch
Control power supply conducting and the cut-off of illuminating lamp.But mechanical switch is during using, owing to its existence of repeatable operation is the biggest
Mechanical wear, be very easy to damage, bring the biggest trouble.
Summary of the invention
It is an object of the invention to the defect overcoming current mechanical switch to be easily damaged, it is provided that a kind of optical coupling touches to be opened
Close.
The purpose of the present invention is achieved through the following technical solutions: a kind of optical coupling soft-touch control, mainly by optical coupling chip
U1, current switch chip U2, field effect transistor MOS, touch sheet M1, touch sheet M2, one end is connected with touch sheet M1, the other end with
The resistance R1 that the BASE pin of optical coupling chip U1 is connected, positive pole is connected with the BASE pin of optical coupling chip U1, negative pole
The electric capacity C1 of ground connection, the resistance R2 that one end is connected with touch sheet M2, the other end is connected with the grid of field effect transistor MOS, just
Pole is connected with the grid of field effect transistor MOS, the electric capacity C2 of minus earth, is serially connected in AN pin and the field effect of optical coupling chip U1
Should resistance R3 between the source electrode of pipe MOS, positive pole is connected with the AN pin of optical coupling chip U1, negative pole and optical coupling chip U1
The electric capacity C3 that is connected of CAT pin, positive pole EMIT pin with optical coupling chip U1 after resistance R5 is connected, negative pole and electricity
Hold the electric capacity C5 of ground connection, the resistance R6 being in parallel with electric capacity C5 while the negative pole of C3 is connected, positive pole and field effect transistor MOS
The electric capacity C4 that drain electrode is connected, negative pole is connected with the positive pole of electric capacity C5, is serially connected in COLL pin and the electricity of optical coupling chip U1
Resistance R4 between the IN pin of stream switch chip U2, is serially connected in GND pin and the negative pole of electric capacity C5 of current switch chip U2
Between resistance R7, and one end is connected with the OUT1 pin of current switch chip U2, the other end then with the negative pole of electric capacity C5
It is collectively forming the resistance R8 composition of outfan；The IN pin of described current switch chip U2 connects+6V voltage, its EN pin and optocoupler
The EMIT pin closing chip U1 is connected, and its OUT1 pin is connected with its OUT2 pin.
Described optical coupling chip U1 is the integrated chip of TIL113, and described current switch chip U2 is the integrated chip of TWH8778.
Described field effect transistor MOS is 3DJ6 technotron.
The present invention compared with the prior art, has the following advantages and beneficial effect:
The present invention only need to can open or close illuminating lamp by the touch sheet that human body touch is different, opens with traditional machinery
Pass is compared, and the present invention does not has mechanical wear, and service life is longer, effectively solves and uses mechanical switch easy because of mechanical wear
The problem damaged.
Accompanying drawing explanation
Fig. 1 is the integrated circuit structure chart of the present invention.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited to
This.
Embodiment
As it is shown in figure 1, the present invention is mainly by optical coupling chip U1, current switch chip U2, field effect transistor MOS, touch sheet
M1, touch sheet M2, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, electric capacity C1, electricity
Hold C2, electric capacity C3, electric capacity C4 and electric capacity C5 composition.
Wherein, resistance R1 and electric capacity C1 forms a RC wave filter；One end of this resistance R1 is connected with touch sheet M1, separately
One end is connected with the BASE pin of optical coupling chip U1；The positive pole of electric capacity C1 is connected with the BASE pin of optical coupling chip U1
Connect, minus earth.
Resistance R2 and electric capacity C2 forms the 2nd RC wave filter；One end of this resistance R2 is connected with touch sheet M2, the other end
It is connected with the grid of field effect transistor MOS；The positive pole of electric capacity C2 is connected with the grid of field effect transistor MOS, minus earth.
Interference signal can be filtered by the oneth RC filter circuit and the 2nd RC filter circuit, this resistance R1 and resistance
The resistance of R2 is 1K Ω, and the capacitance of electric capacity C1 and electric capacity C2 is then 0.47 μ F, and this touch sheet M1 and touch sheet M2 are to be led
The best sheet metal.
Additionally this resistance R3 is serially connected between AN pin and the source electrode of field effect transistor MOS of optical coupling chip U1.This electric capacity
C3 is charging capacitor, and its positive pole is connected with the AN pin of optical coupling chip U1, the CAT pin phase of negative pole and optical coupling chip U1
Connecting, the capacitance of this electric capacity C3 is 47 μ F.The resistance of this resistance R3 is 350 Ω.
The positive pole of this electric capacity C5 EMIT pin with optical coupling chip U1 after resistance R5 is connected, and negative pole is with electric capacity C3's
Negative pole be connected while ground connection.Resistance R6 is in parallel with electric capacity C5.The positive pole of electric capacity C4 is connected with the drain electrode of field effect transistor MOS
Connecing, negative pole is connected with the positive pole of electric capacity C5.This resistance R5 and resistance R6 play its resistance of dividing potential drop effect be 5K Ω, electric capacity C4 and
The capacitance of electric capacity C5 is 0.1 μ F.
Resistance R4 is serially connected between the COLL pin of optical coupling chip U1 and the IN pin of current switch chip U2.Resistance R7
It is serially connected between GND pin and the negative pole of electric capacity C5 of current switch chip U2.One end of resistance R8 and current switch chip U2
OUT1 pin be connected, its other end then negative pole with electric capacity C5 is collectively forming outfan and is connected with illuminating lamp.Described
The IN pin of current switch chip U2 connects+6V voltage, and its EN pin is connected with the EMIT pin of optical coupling chip U1, its OUT1
Pin is connected with its OUT2 pin.
This optical coupling chip U1 uses the integrated chip of TIL113, and described current switch chip U2 then uses TWH8778 integrated
Chip, this field effect transistor MOS uses 3DJ6 technotron, and the resistance of resistance R4 is 10K Ω, resistance R7 and the resistance of resistance R8
Value is 1K Ω.
During work, when switching on power, because the resistance of field effect transistor MOS source electrode is less, by the electricity of field effect transistor MOS source electrode
Stream is relatively big, and electric capacity C3 charges, and now the LED within optical coupling chip U1 lights, but owing to the BASE of optical coupling chip U1 manages
Foot is unsettled, so optical coupling chip U1 is not turned on, current switch chip U2 is also not turned on, and circuit disconnects.When touching touch sheet M1
Time, the noise signal voltage of human body sensing is added to the BASE pin of optical coupling chip U1 after a RC filters filter, makes
Optical coupling chip U1 turns on, and the EN pin of current switch chip U2 receives the voltage signal of the output of optical coupling chip U1, this
Time current switch chip U2 be also switched on, illuminating lamp is lit.When touching touch sheet M2, due to the noise signal by human body sensing
The impact of voltage, the resistance of field effect transistor MOS source electrode becomes big, and the electric current by this field effect transistor MOS source electrode is the least, at this moment optocoupler
Closing the LED within chip U1 to extinguish, this optical coupling chip U1 ends, and the EN pin of current switch chip U2 is not received by optocoupler
Closing the voltage signal of chip U1 output, this current switch chip U2 is also switched off, and illuminating lamp extinguishes.
As it has been described above, just can well realize the present invention.
Claims (3)
1. an optical coupling soft-touch control, it is characterised in that main by optical coupling chip U1, current switch chip U2, field effect
Pipe MOS, touch sheet M1, touch sheet M2, one end is connected with touch sheet M1, the BASE pin phase of the other end and optical coupling chip U1
The resistance R1 connected, positive pole is connected with the BASE pin of optical coupling chip U1, the electric capacity C1 of minus earth, one end and touch sheet
The resistance R2 that M2 is connected, the other end is connected with the grid of field effect transistor MOS, positive pole is connected with the grid of field effect transistor MOS
Connect, the electric capacity C2 of minus earth, be serially connected in the resistance between AN pin and the source electrode of field effect transistor MOS of optical coupling chip U1
R3, the electric capacity that positive pole is connected with the AN pin of optical coupling chip U1, negative pole is connected with the CAT pin of optical coupling chip U1
C3, positive pole is connected with the EMIT pin of optical coupling chip U1 after resistance R5, negative pole is same with what the negative pole of electric capacity C3 was connected
Time ground connection electric capacity C5, the resistance R6 being in parallel with electric capacity C5, positive pole is connected with the drain electrode of field effect transistor MOS, negative pole with electricity
Hold the electric capacity C4 that the positive pole of C5 is connected, be serially connected in COLL pin and the IN pin of current switch chip U2 of optical coupling chip U1
Between resistance R4, be serially connected in the resistance R7 between GND pin and the negative pole of electric capacity C5 of current switch chip U2, and one end
Be connected with the OUT1 pin of current switch chip U2, the other end then negative pole with electric capacity C5 is collectively forming the resistance R8 of outfan
Composition；The IN pin of described current switch chip U2 connects+6V voltage, and its EN pin is connected with the EMIT pin of optical coupling chip U1
Connecing, its OUT1 pin is connected with its OUT2 pin.
A kind of optical coupling soft-touch control the most according to claim 1, it is characterised in that described optical coupling chip U1 is
The integrated chip of TIL113, described current switch chip U2 is the integrated chip of TWH8778.
A kind of optical coupling soft-touch control the most according to claim 1, it is characterised in that described field effect transistor MOS is 3DJ6
Technotron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610892805.0A CN106330161A (en) | 2016-10-13 | 2016-10-13 | Optical coupling touch switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610892805.0A CN106330161A (en) | 2016-10-13 | 2016-10-13 | Optical coupling touch switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106330161A true CN106330161A (en) | 2017-01-11 |
Family
ID=57821297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610892805.0A Withdrawn CN106330161A (en) | 2016-10-13 | 2016-10-13 | Optical coupling touch switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106330161A (en) |
-
2016
- 2016-10-13 CN CN201610892805.0A patent/CN106330161A/en not_active Withdrawn
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104218551B (en) | Light fixture surge protection circuit and light fixture | |
| CN202085359U (en) | Controlling means for acousto-optic touch tri-control non-attended light | |
| CN106301321A (en) | A kind of high stability optical coupling soft-touch control | |
| CN106330161A (en) | Optical coupling touch switch | |
| CN104113956B (en) | A kind of light switch control circuit and light fixture | |
| CN202603013U (en) | Automatic desk lamp | |
| CN203859902U (en) | Light control module of light fixture | |
| CN201967193U (en) | Economize on electricity illumination control device | |
| CN205336586U (en) | Lighting circuit and remote controller | |
| CN202017814U (en) | An environmental protection and energy conservation tap device | |
| CN106330159A (en) | Optical coupling touch switch based on signal amplification | |
| CN106452414A (en) | Bistable state touch switch | |
| CN202799305U (en) | Intelligent control light-emitting diode (LED) lighting circuit | |
| CN202035182U (en) | Headlamp time delay illumination control device | |
| CN104244526B (en) | A kind of intelligent vicarious energy efficient lighting system | |
| CN105357824B (en) | With the switch on wall for touching the LED night lamp for opening delay pass | |
| CN104902647A (en) | Intelligent induction type energy-saving illuminating system based on constant current protection | |
| CN105356871B (en) | Zero-power-consumption standby touches power down switch | |
| CN205160872U (en) | Wall switch of little night -light of LED of time delay pass is opened in area touch | |
| CN104411065A (en) | Automatic emergency lamp system sensitive in induction | |
| CN105007065B (en) | Touch zero-power electric iron time-delaying energy-saving switch | |
| CN106330160A (en) | High-stability optical coupling touch switch based on signal amplification | |
| CN205280807U (en) | Circuit arrangement with electrification of ground wire detects function | |
| CN108685187A (en) | Hand-held smoke filter | |
| CN104202875B (en) | Touch type delay electronic switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170111 |