CN107884604A - A kind of optoelectronic switch break-make level sensitive circuit - Google Patents
A kind of optoelectronic switch break-make level sensitive circuit Download PDFInfo
- Publication number
- CN107884604A CN107884604A CN201711338753.3A CN201711338753A CN107884604A CN 107884604 A CN107884604 A CN 107884604A CN 201711338753 A CN201711338753 A CN 201711338753A CN 107884604 A CN107884604 A CN 107884604A
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- Prior art keywords
- operational amplifier
- optoelectronic switch
- ground
- adjustable resistance
- level sensitive
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- 230000005693 optoelectronics Effects 0.000 title claims abstract description 22
- 239000003381 stabilizer Substances 0.000 claims abstract description 5
- 239000000919 ceramic Substances 0.000 claims description 4
- 230000032258 transport Effects 0.000 claims description 2
- 238000012360 testing method Methods 0.000 abstract description 22
- 238000001514 detection method Methods 0.000 abstract description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 4
- 239000000047 product Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0425—Test clips, e.g. for IC's
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/30—Structural combination of electric measuring instruments with basic electronic circuits, e.g. with amplifier
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electronic Switches (AREA)
Abstract
The present invention provides a kind of optoelectronic switch break-make level sensitive circuit, including input signal Vi, output signal Vo1, Vo2, operational amplifier U1, U2, U3, U4, adjustable resistance R1, R2, R3, R4, power Vcc, ground, light emitting diode D1, D2, resistance R5, voltage-stabiliser tube D3.Power Vcc is positive 5V direct currents.Optoelectronic switch break-make level sensitive circuit of the present invention, the detection circuit structure is simple, detection performance is stable；Detection is improved by adjusting adjustable resistance accurately, is adapted to multichannel optoelectronic switch test fixture electric-control system；The function of detection circuit has expandability, can improve jig Design efficiency, shortens the production cycle, accelerates the exploitation of new product.
Description
Technical field
The present invention relates to detection field of circuit technology, and in particular to a kind of optoelectronic switch break-make level sensitive circuit.
Background technology
As electronic technology continues to develop, the appearance of electronics high-end product, electronic product gradually tends to miniaturization, complexity
Change, circuit board also tends to multilayer, high function and high density, therefore, work detected to it and proposes higher level requirement.
Test fixture is also known as testing jig, and it is that the wiring board for welding electronic component is placed on the branch equipped with several testing needles
On frame, predetermined some solder joints are allowed to be in contact exactly with testing needle, thus test line plate one loads fixture, electrical parameter is immediately
It can be shown by gauge outfit, fluorescent screen or number etc..Test fixture test is a kind of relatively conventional circuit board measuring method,
Contacted using special needle-bar test fixture with the component on wiring board, each node of assist side, which applies small voltage, to be come
Whether measurement circuit break-make, component are correctly installed.Due to needing for board design special needle bed-type fixture, this test side
Method is applied to the on-line testing for producing circuit board in enormous quantities.Test for fixture control system, can main test fixture just
It is true according to Row control magnetic valve either on or off, so as to which test fixture is fixed and exited to product to be measured；Test fixture controls
Can system correctly send commencing signal to test system, the letter that can be fed back after test terminates according to test system
Number handled.Test fixture test speed is fast, but cost of manufacture is high, fabrication cycle length；Test fixture detects the knot of circuit
Structure is more complicated, the performance of circuit is unstable, circuit control is not accurate high.
The content of the invention
(1) technical problem solved
The defects of main object of the present invention is to overcome above-mentioned prior art problem, the present invention provide a kind of photoelectricity and opened
Close break-make level sensitive circuit, the detection circuit structure is simple, the stable performance of detection circuit, detect circuit control it is smart enough
Really, the function of detecting circuit has expandability.
(2) technical scheme
To realize object above, the present invention is achieved by the following technical programs：
A kind of optoelectronic switch break-make level sensitive circuit, including input signal Vi, output signal Vo1, Vo2, operation amplifier
Device U1, U2, U3, U4, adjustable resistance R1, R2, R3, R4, power Vcc, ground, light emitting diode D1, D2, the input signal Vi point
It is not connected with operational amplifier U1 inverting input and operational amplifier U2 in-phase input end, operational amplifier U1 same phase
Input is connected with adjustable resistance R1 one end, and the other both ends of adjustable resistance R1 are connected with power Vcc and ground respectively, operational amplifier
U2 inverting input is connected with adjustable resistance R2 one end, and the other both ends of adjustable resistance R2 are connected with power Vcc and ground respectively, transports
The output end for calculating amplifier U1, U2 is connected with output signal Vo1, and output signal Vo1 is connected to the ground by light emitting diode D1；It is defeated
Enter signal Vi also respectively with operational amplifier U4 inverting input and operational amplifier U3 in-phase input end to be connected, computing is put
Big device U4 in-phase input end is connected with adjustable resistance R4 one end, the other both ends of adjustable resistance R4 respectively with power Vcc and phase
Even, operational amplifier U3 inverting input is connected with adjustable resistance R3 one end, the other both ends of adjustable resistance R3 respectively with power supply
Vcc is connected with ground, and operational amplifier U3, U4 output end are connected with output signal Vo2, and output signal Vo2 passes through light-emitting diodes
Pipe D2 is connected to the ground.
Further, described adjustable resistance R1, R2, R3, R4 respectively parallel with the both ends that operational amplifier and ground are connected
There are electric capacity C1, C2, C3, C4.
Further, described electric capacity C1, C2, C3, C4 are 0.1uF ceramic condensers.
Further, the input signal Vi is grounded by resistance R1.
Further, the resistance R1 is 47k Ω.
Further, the resistance R1 both ends and it is connected with voltage-stabiliser tube D3.
Further, described operational amplifier U1, U2, U3, U4 are operational amplifier LM139.
Further, the anode of the light emitting diode D1 is connected with output signal Vo1, light emitting diode D1 negative electrode with
Ground is connected.
Further, the anode of the light emitting diode D2 is connected with output signal Vo2, light emitting diode D2 negative electrode with
Ground is connected.
Further, the power Vcc is positive 5V direct currents.
(3) beneficial effect
Beneficial effects of the present invention：A kind of optoelectronic switch break-make level sensitive circuit, the detection circuit structure is simple, detection
Stable performance；Detection is improved by adjusting adjustable resistance accurately, is adapted to multichannel optoelectronic switch test fixture electric-control system；Detection electricity
The function on road has expandability, can improve jig Design efficiency, shortens the production cycle, accelerates the exploitation of new product.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is present invention detection circuit theory diagrams.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
With reference to Fig. 1, a kind of optoelectronic switch break-make level sensitive circuit, including input signal Vi, output signal Vo1, Vo2,
Operational amplifier U1, U2, U3, U4, adjustable resistance R1, R2, R3, R4, power Vcc, ground, light emitting diode D1, D2, resistance R5,
Voltage-stabiliser tube D3.Power Vcc is positive 5V direct currents.
Input signal Vi respectively with operational amplifier U1 inverting input and operational amplifier U2 in-phase input end phase
Even, operational amplifier U1 in-phase input end is connected with adjustable resistance R1 one end, the other both ends of adjustable resistance R1 respectively with power supply
Vcc is connected with ground, and operational amplifier U2 inverting input is connected with adjustable resistance R2 one end, the other both ends of adjustable resistance R2 point
It is not connected with power Vcc and ground, operational amplifier U1, U2 output end are connected with output signal Vo1, and output signal Vo1 passes through
Light emitting diode D1 is connected to the ground.Adjustable resistance R1, R2, respectively parallel with operational amplifier U1, U2 and ground both ends being connected
There are electric capacity C1, C2, electric capacity C1, C2 are 0.1uF ceramic condensers, and adjustable resistance R1, R2 are 100k Ω.Operational amplifier U1, U2 are
Operational amplifier LM139.Light emitting diode D1 anode is connected with output signal Vo1, light emitting diode D1 negative electrode and ground phase
Even.
Input signal Vi also respectively with operational amplifier U4 inverting input and operational amplifier U3 in-phase input end
Be connected, operational amplifier U4 in-phase input end is connected with adjustable resistance R4 one end, the other both ends of adjustable resistance R4 respectively with electricity
Source Vcc is connected with ground, and operational amplifier U3 inverting input is connected with adjustable resistance R3 one end, the other both ends of adjustable resistance R3
It is connected respectively with power Vcc and ground, operational amplifier U3, U4 output end are connected with output signal Vo2, and output signal Vo2 leads to
Light emitting diode D2 is crossed to be connected to the ground.Adjustable resistance R3, R4, the both ends being connected with operational amplifier U3, U4 and ground difference are simultaneously
Electric capacity C3, C4 are connected with, electric capacity C3, C4 are 0.1uF ceramic condensers, and adjustable resistance R3, R4 are 100k Ω.Operational amplifier U3, U4
For operational amplifier LM139.Light emitting diode D2 anode is connected with output signal Vo2, light emitting diode D2 negative electrode and ground
It is connected.
Input signal Vi is grounded by resistance R1, and resistance R1 is 47k Ω.Resistance R1 both ends are simultaneously connected with voltage-stabiliser tube D3, voltage stabilizing
Pipe D3 anode is connected to the ground.
Operational amplifier U1, U2 and operational amplifier U3, U4 respectively constitute comparison circuit.Input signal Vi is in 0.1-
During 0.15V, output signal Vo1 output high level, light emitting diode D1 is bright, and light emitting diode D1 can be red diodes；It is defeated
Enter signal Vi in 2.8-3.3V, output signal Vo2 output high level, light emitting diode D2 is bright, and light emitting diode D2 can be
Green diode.
In summary, optoelectronic switch break-make level sensitive circuit of the present invention, the detection circuit structure is simple, detection performance is steady
It is fixed；Detection is improved by adjusting adjustable resistance accurately, is adapted to multichannel optoelectronic switch test fixture electric-control system；Detect the work(of circuit
There can be expandability, jig Design efficiency can be improved, shorten the production cycle, accelerate the exploitation of new product.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
The present invention is described in detail, it will be understood by those within the art that：It still can be to foregoing each implementation
Technical scheme described in example is modified, or carries out equivalent substitution to which part technical characteristic；And these modification or
Replace, the essence of appropriate technical solution is departed from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
- A kind of 1. optoelectronic switch break-make level sensitive circuit, it is characterised in that：Including input signal Vi, output signal Vo1, Vo2, Operational amplifier U1, U2, U3, U4, adjustable resistance R1, R2, R3, R4, power Vcc, ground, light emitting diode D1, D2, the input Signal Vi is connected with operational amplifier U1 inverting input and operational amplifier U2 in-phase input end respectively, operational amplifier U1 in-phase input end is connected with adjustable resistance R1 one end, and the other both ends of adjustable resistance R1 are connected with power Vcc and ground respectively, transports The inverting input for calculating amplifier U2 is connected with adjustable resistance R2 one end, the other both ends of adjustable resistance R2 respectively with power Vcc and Ground is connected, and operational amplifier U1, U2 output end are connected with output signal Vo1, output signal Vo1 by light emitting diode D1 with Ground is connected；Input signal Vi also respectively with operational amplifier U4 inverting input and operational amplifier U3 in-phase input end phase Even, operational amplifier U4 in-phase input end is connected with adjustable resistance R4 one end, the other both ends of adjustable resistance R4 respectively with power supply Vcc is connected with ground, and operational amplifier U3 inverting input is connected with adjustable resistance R3 one end, the other both ends of adjustable resistance R3 point It is not connected with power Vcc and ground, operational amplifier U3, U4 output end are connected with output signal Vo2, and output signal Vo2 passes through Light emitting diode D2 is connected to the ground.
- A kind of 2. optoelectronic switch break-make level sensitive circuit as claimed in claim 1, it is characterised in that the adjustable resistance R1, R2, R3, R4 respectively parallel with the both ends that operational amplifier and ground are connected electric capacity C1, C2, C3, C4.
- A kind of 3. optoelectronic switch break-make level sensitive circuit as claimed in claim 2, it is characterised in that the electric capacity C1, C2, C3, C4 are 0.1uF ceramic condensers.
- A kind of 4. optoelectronic switch break-make level sensitive circuit as claimed in claim 1, it is characterised in that the input signal Vi It is grounded by resistance R1.
- 5. a kind of optoelectronic switch break-make level sensitive circuit as claimed in claim 4, it is characterised in that the resistance R1 is 47kΩ。
- A kind of 6. optoelectronic switch break-make level sensitive circuit as claimed in claim 4, it is characterised in that the resistance R1 both ends And it is connected with voltage-stabiliser tube D3.
- A kind of 7. optoelectronic switch break-make level sensitive circuit as claimed in claim 1, it is characterised in that the operational amplifier U1, U2, U3, U4 are operational amplifier LM139.
- A kind of 8. optoelectronic switch break-make level sensitive circuit as claimed in claim 1, it is characterised in that the light emitting diode D1 anode is connected with output signal Vo1, and light emitting diode D1 negative electrode is connected to the ground.
- A kind of 9. optoelectronic switch break-make level sensitive circuit as claimed in claim 1, it is characterised in that the light emitting diode D2 anode is connected with output signal Vo2, and light emitting diode D2 negative electrode is connected to the ground.
- 10. a kind of optoelectronic switch break-make level sensitive circuit as claimed in claim 1, it is characterised in that the power Vcc is Positive 5V direct currents.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711338753.3A CN107884604B (en) | 2017-12-14 | 2017-12-14 | Photoelectric switch on-off level detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711338753.3A CN107884604B (en) | 2017-12-14 | 2017-12-14 | Photoelectric switch on-off level detection circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107884604A true CN107884604A (en) | 2018-04-06 |
| CN107884604B CN107884604B (en) | 2024-04-05 |
Family
ID=61774558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711338753.3A Active CN107884604B (en) | 2017-12-14 | 2017-12-14 | Photoelectric switch on-off level detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107884604B (en) |
Citations (9)
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|---|---|---|---|---|
| US6191591B1 (en) * | 1998-05-29 | 2001-02-20 | Moltech Power Systems, Inc. | Battery cell grading holder |
| CN2718677Y (en) * | 2004-07-13 | 2005-08-17 | 白钧天 | Photoelectric identifying device for idetifying front side and back side of mahjong pieces |
| CN201247262Y (en) * | 2008-07-14 | 2009-05-27 | 深圳华为通信技术有限公司 | Test fixture |
| CN202041173U (en) * | 2011-01-21 | 2011-11-16 | 北京中纺锐力机电有限公司 | Three-phase angular displacement sensor circuit |
| CN103414166A (en) * | 2013-08-23 | 2013-11-27 | 苏州之侨新材料科技有限公司 | Lithium ion battery charge and discharge protection device |
| CN204028157U (en) * | 2014-06-30 | 2014-12-17 | 国网吉林省电力有限公司延边供电公司 | A kind of convert of capacitor to voltage circuit |
| CN106093532A (en) * | 2016-07-26 | 2016-11-09 | 成都知人善用信息技术有限公司 | A kind of voltage check device of high stability |
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2017
- 2017-12-14 CN CN201711338753.3A patent/CN107884604B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6191591B1 (en) * | 1998-05-29 | 2001-02-20 | Moltech Power Systems, Inc. | Battery cell grading holder |
| CN2718677Y (en) * | 2004-07-13 | 2005-08-17 | 白钧天 | Photoelectric identifying device for idetifying front side and back side of mahjong pieces |
| CN201247262Y (en) * | 2008-07-14 | 2009-05-27 | 深圳华为通信技术有限公司 | Test fixture |
| CN202041173U (en) * | 2011-01-21 | 2011-11-16 | 北京中纺锐力机电有限公司 | Three-phase angular displacement sensor circuit |
| CN103414166A (en) * | 2013-08-23 | 2013-11-27 | 苏州之侨新材料科技有限公司 | Lithium ion battery charge and discharge protection device |
| CN204028157U (en) * | 2014-06-30 | 2014-12-17 | 国网吉林省电力有限公司延边供电公司 | A kind of convert of capacitor to voltage circuit |
| CN107121576A (en) * | 2016-02-24 | 2017-09-01 | 张生兰 | A kind of adjustable resistor type testing device of mobile terminal |
| CN106093532A (en) * | 2016-07-26 | 2016-11-09 | 成都知人善用信息技术有限公司 | A kind of voltage check device of high stability |
| CN106300319A (en) * | 2016-08-08 | 2017-01-04 | 华东光电集成器件研究所 | A kind of integrated circuit anti-plug detection protection device |
Non-Patent Citations (1)
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|---|---|
| CN107884604B (en) | 2024-04-05 |
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