CN106301321A - A kind of high stability optical coupling soft-touch control - Google Patents
A kind of high stability optical coupling soft-touch control Download PDFInfo
- Publication number
- CN106301321A CN106301321A CN201610892709.6A CN201610892709A CN106301321A CN 106301321 A CN106301321 A CN 106301321A CN 201610892709 A CN201610892709 A CN 201610892709A CN 106301321 A CN106301321 A CN 106301321A
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- China
- Prior art keywords
- chip
- pin
- electric capacity
- optical coupling
- pole
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Classifications
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/78—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled
- H03K17/785—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled controlling field-effect transistor switches
-
- 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
- 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
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
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- Push-Button Switches (AREA)
- Electronic Switches (AREA)
Abstract
The invention discloses a kind of high stability optical coupling soft-touch control, it is characterised in that be mainly made up of optical coupling chip U1, current switch chip U3 etc..The present invention only need to can open or close illuminating lamp by the touch sheet that human body touch is different, and compared with traditional mechanical switch, the present invention does not has mechanical wear, and service life is longer, effectively solves the problem using mechanical switch to be easily damaged because of mechanical wear.
Description
Technical field
The present invention relates to a kind of soft-touch control, specifically refer to a kind of high stability 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.In order to solve the problems referred to above, occur the most on the market
Contact witch, human body can control the open and close of illuminating lamp by touching contact witch.There is not machinery in contact witch
Abrasion, its life-span is a lot of compared with mechanical switch length.But still there is bigger defect in the contact witch used at present, i.e. its
Stability is relatively low, it is impossible to meet the demand of people.
Summary of the invention
It is an object of the invention to overcome the defect that the stability of the contact witch used at present is relatively low, it is provided that a kind of
High stability optical coupling soft-touch control.
The purpose of the present invention is achieved through the following technical solutions: a kind of high stability optical coupling soft-touch control, mainly by light
Coupling chip U1, voltage stabilizing chip U2, current switch chip U3, field effect transistor MOS, touch sheet M1, touch sheet M2, one end and touch
The resistance R1 that sheet M1 is connected, the other end is connected with the BASE pin of optical coupling chip U1, positive pole is with optical coupling chip U1's
BASE pin is connected, the electric capacity C1 of minus earth, and one end is connected with touch sheet M2, the grid of the other end and field effect transistor MOS
The resistance R2 that pole is connected, positive pole is connected with the grid of field effect transistor MOS, the electric capacity C2 of minus earth, is serially connected in optical coupling
Resistance R3 between AN pin and the source electrode of field effect transistor MOS of chip U1, positive pole is connected with the AN pin of optical coupling chip U1
Connect, electric capacity C3 that negative pole is connected with the CAT pin of optical coupling chip U1, positive pole after resistance R5 with optical coupling chip U1's
The electric capacity C5 of ground connection, the electricity being in parallel with electric capacity C5 while EMIT pin is connected, negative pole is connected with the negative pole of electric capacity C3
Resistance R6, the electric capacity C4 that positive pole is connected with the drain electrode of field effect transistor MOS, negative pole is connected with the positive pole of electric capacity C5, be serially connected in light
Resistance R4, P pole between COLL pin and the IN pin of current switch chip U3 of coupling chip U1 and the IN of voltage stabilizing chip U2
The diode D1 that pin is connected, N pole is connected with the OUT pin of voltage stabilizing chip U2, positive pole is extremely connected with the P of diode D1
Connect, electric capacity C6 that negative pole is connected with the negative pole of electric capacity C5, positive pole is connected with the ADJ pin of voltage stabilizing chip U2, negative pole and electricity
Hold the electric capacity C7 that the negative pole of C6 is connected, be serially connected in the resistance R7 between the negative pole of electric capacity C7 and the OUT pin of voltage stabilizing chip U2,
The diode D2 that N pole is connected with the N pole of diode D1, P pole is connected with the positive pole of electric capacity C7, is serially connected in current switch chip
Resistance R8 between GND pin and the negative pole of electric capacity C5 of U3, and one end is connected with the OUT1 pin of current switch chip U3
Connect, the other end then negative pole with electric capacity C5 is collectively forming the resistance R9 composition of outfan；The IN pipe of described current switch chip U3
Foot connects+6V voltage, and its OUT1 pin is connected with its OUT2 pin；The OUT pin of described voltage stabilizing chip U2 and current switch core
The EN pin of sheet U3 is connected, its IN pin is connected with the EMIT pin of optical coupling chip U1.
Described optical coupling chip U1 is the integrated chip of TIL113, and described voltage stabilizing chip U2 is LM317 type voltage stabilizing chip, described
Current switch chip U3 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.The voltage signal of output can also be processed by the present invention, makes voltage signal more stable, it is to avoid voltage wave
Move and make the present invention that misoperation to occur.
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, voltage stabilizing chip U2, current switch chip U3, 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, resistance R9, electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, electric capacity C5, electric capacity C6, electric capacity C7, diode D1 and diode
D2 forms.
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, be existing technology by touch touch sheet controlling the switch of illuminating lamp, therefore touch sheet
Shape, set-up mode etc. do not do too much repeating at this.
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 350K 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 U3.Diode
The P pole of D1 is connected with the IN pin of voltage stabilizing chip U2, and N pole is connected with the OUT pin of voltage stabilizing chip U2.The positive pole of electric capacity C6
Being connected with the P pole of diode D1, negative pole is connected with the negative pole of electric capacity C5.The positive pole of electric capacity C7 and the ADJ of voltage stabilizing chip U2
Pin is connected, and negative pole is connected with the negative pole of electric capacity C6.Resistance R7 is serially connected in negative pole and the OUT of voltage stabilizing chip U2 of electric capacity C7
Between pin.The N pole of diode D2 is connected with the N pole of diode D1, and P pole is connected with the positive pole of electric capacity C7.Resistance R8 goes here and there
It is connected between GND pin and the negative pole of electric capacity C5 of current switch chip U3.One end of resistance R9 is with current switch chip U3's
OUT1 pin is connected, and its other end then negative pole with electric capacity C5 is collectively forming outfan and is connected with illuminating lamp.Described electricity
The IN pin of stream switch chip U3 connects+6V voltage, and its OUT1 pin is connected with its OUT2 pin.Described voltage stabilizing chip U2's
OUT pin is connected with the EN pin of current switch chip U3, its IN pin is connected with the EMIT pin of optical coupling chip U1.
This voltage stabilizing chip U2, diode D1, diode D2, resistance R7, electric capacity C6 and electric capacity C7 collectively constitute one surely
Volt circuit；It is input to voltage stabilizing chip U2 from the voltage signal of the EMIT pin output of optical coupling chip U1 and carries out voltage stabilizing process, from
And the voltage that makes current switch chip U3 receive is more stable, it is to avoid misoperation phenomenon occurs in the present invention.Diode D1, two poles
Pipe D2 plays the effect of protection voltage stabilizing chip U2.This voltage stabilizing chip U2 uses LM317 type voltage stabilizing chip, diode D1 and diode
D1 is 1N4001 type diode, and the resistance of resistance R7 is 200 Ω, and the capacitance of electric capacity C6 and electric capacity C7 is 0.1 μ F.
This optical coupling chip U1 uses the integrated chip of TIL113, and described current switch chip U3 then uses TWH8778 integrated
Chip, this field effect transistor MOS uses 3DJ6 technotron, and the resistance of resistance R4 is 10K Ω, resistance R8 and the resistance of resistance R9
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 U3 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 EMIT pin output voltage signal of optical coupling chip U1, this voltage signal is through mu balanced circuit voltage stabilizing
After input to the EN pin of current switch chip U3, at this moment current switch chip U3 is also switched on, and illuminating lamp is lit.When touching
When touching sheet M2, owing to the noise signal voltage by human body sensing is affected, the resistance of field effect transistor MOS source electrode becomes big, by this
The electric current of field effect transistor MOS source electrode is the least, and at this moment the LED within optical coupling chip U1 extinguishes, and this optical coupling chip U1 ends, electricity
The EN pin of stream switch chip U3 is not received by the voltage signal of optical coupling chip U1 output, and this current switch chip U3 also cuts
Only, illuminating lamp extinguishes.
As it has been described above, just can well realize the present invention.
Claims (3)
1. a high stability optical coupling soft-touch control, it is characterised in that mainly by optical coupling chip U1, voltage stabilizing chip U2, electricity
Stream switch chip U3, field effect transistor MOS, touch sheet M1, touch sheet M2, one end is connected with touch sheet M1, the other end and optocoupler
Closing the resistance R1 that the BASE pin of chip U1 is connected, positive pole is connected with the BASE pin of optical coupling chip U1, minus earth
Electric capacity C1, 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, positive pole with
The grid of field effect transistor MOS is connected, the electric capacity C2 of minus earth, is serially connected in AN pin and the field effect transistor of optical coupling chip U1
Resistance R3 between the source electrode of 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 CAT pin is connected, positive pole EMIT pin with optical coupling chip U1 after resistance R5 is connected, negative pole and electric capacity
The negative pole of C3 be connected while the electric capacity C5 of ground connection, the resistance R6 being in parallel with electric capacity C5, the leakage of positive pole and field effect transistor MOS
The electric capacity C4 that pole is connected, negative pole is connected with the positive pole of electric capacity C5, is serially connected in COLL pin and the electric current of optical coupling chip U1
Resistance R4, P pole between the IN pin of switch chip U3 is connected with the IN pin of voltage stabilizing chip U2, N pole and voltage stabilizing chip U2
The diode D1 that is connected of OUT pin, positive pole is connected with the P pole of diode D1, negative pole is connected with the negative pole of electric capacity C5
Electric capacity C6, the electric capacity C7 that positive pole is connected with the ADJ pin of voltage stabilizing chip U2, negative pole is connected with the negative pole of electric capacity C6, string
Resistance R7, the N pole being connected between the negative pole of electric capacity C7 and the OUT pin of voltage stabilizing chip U2 is connected with the N pole of diode D1, P
The diode D2 that pole is connected with the positive pole of electric capacity C7, is serially connected in GND pin and the negative pole of electric capacity C5 of current switch chip U3
Between resistance R8, and one end is connected with the OUT1 pin of current switch chip U3, the other end then with the negative pole of electric capacity C5
It is collectively forming the resistance R9 composition of outfan；The IN pin of described current switch chip U3 connects+6V voltage, its OUT1 pin and its
OUT2 pin is connected；The OUT pin of described voltage stabilizing chip U2 is connected with the EN pin of current switch chip U3, its IN pin
It is connected with the EMIT pin of optical coupling chip U1.
A kind of high stability 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, and described voltage stabilizing chip U2 is LM317 type voltage stabilizing chip, and described current switch chip U3 is
The integrated chip of TWH8778.
A kind of high stability 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 |
|---|---|---|---|
| CN201610892709.6A CN106301321A (en) | 2016-10-13 | 2016-10-13 | A kind of high stability optical coupling soft-touch control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610892709.6A CN106301321A (en) | 2016-10-13 | 2016-10-13 | A kind of high stability optical coupling soft-touch control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106301321A true CN106301321A (en) | 2017-01-04 |
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ID=57718292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610892709.6A Withdrawn CN106301321A (en) | 2016-10-13 | 2016-10-13 | A kind of high stability optical coupling soft-touch control |
Country Status (1)
| Country | Link |
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| CN (1) | CN106301321A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113556119A (en) * | 2021-09-18 | 2021-10-26 | 成都万创科技股份有限公司 | Mis-connection prevention switchable isolated digital input circuit |
| CN114973458A (en) * | 2022-04-25 | 2022-08-30 | 宁波市盈芯微电子科技有限公司 | Microwave radar response's electronic lock device |
-
2016
- 2016-10-13 CN CN201610892709.6A patent/CN106301321A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113556119A (en) * | 2021-09-18 | 2021-10-26 | 成都万创科技股份有限公司 | Mis-connection prevention switchable isolated digital input circuit |
| CN114973458A (en) * | 2022-04-25 | 2022-08-30 | 宁波市盈芯微电子科技有限公司 | Microwave radar response's electronic lock device |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
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Application publication date: 20170104 |