CN209401152U - Warning circuit based on photoelectric sensing - Google Patents
Warning circuit based on photoelectric sensing Download PDFInfo
- Publication number
- CN209401152U CN209401152U CN201821957273.5U CN201821957273U CN209401152U CN 209401152 U CN209401152 U CN 209401152U CN 201821957273 U CN201821957273 U CN 201821957273U CN 209401152 U CN209401152 U CN 209401152U
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- resistance
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- diode
- light emitting
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/22—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-emitting devices, e.g. LED, optocouplers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
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- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Electronic Switches (AREA)
- Amplifiers (AREA)
Abstract
The utility model provides a kind of warning circuit based on photoelectric sensing, comprising: transmitting unit and receiving unit；Receiving unit includes: capacitor, first resistor, second resistance, light emitting diode, diode；Receiving unit includes 3rd resistor, light-sensitive element, operational amplifier and adjustable resistance；First resistor and second resistance are series between power end and ground terminal；One end of capacitor is connected between first resistor and second resistance, and the other end is connect with the cathode of the anode of diode and light emitting diode respectively, the plus earth setting of the cathode and light emitting diode of diode；Light emitting diode and light-sensitive element face are arranged；One end connection 3rd resistor of light-sensitive element is followed by power end, and connects the non-inverting input terminal of operational amplifier simultaneously, and the other end of light-sensitive element is grounded setting；Two fixing ends of adjustable resistance are separately connected power end and ground terminal, and adjustable side connects the inverting input terminal of operational amplifier.
Description
Technical field
The utility model relates to a kind of warning circuits based on photoelectric sensing.
Background technique
Currently, being stably connected between component, which seems, to be even more important in high-accuracy equipment.But in the prior art
In, there is no the stability that effective and stable structure can be used for connecting between judgement part, especially misplace.
Utility model content
The utility model provides a kind of warning circuit based on photoelectric sensing, can effectively solve the above problems.
The utility model is realized in this way:
A kind of warning circuit based on photoelectric sensing, comprising: transmitting unit and receiving unit；The receiving unit packet
It includes: capacitor, first resistor, second resistance, light emitting diode, diode；The receiving unit includes 3rd resistor, photosensitive member
Part, operational amplifier and adjustable resistance；The first resistor and the second resistance are series between power end and ground terminal；
One end of the capacitor is connected between the first resistor and the second resistance, the other end respectively with the diode just
Pole is connected with the cathode of light emitting diode, the plus earth setting of the cathode and light emitting diode of the diode；It is described to shine
Diode and the light-sensitive element face are arranged；One end of the light-sensitive element connects the 3rd resistor and is followed by power end, and
The non-inverting input terminal of the operational amplifier is connected simultaneously, and the other end of the light-sensitive element is grounded setting；The adjustable resistance
Two fixing ends be separately connected the power end and the ground terminal, the reverse phase that adjustable side connects the operational amplifier is defeated
Enter end；The positive power source terminal and negative power end of the operational amplifier are separately connected power end and ground terminal.
As further improved, the resistance value of the 3rd resistor is 5~10 kilo-ohms, the Standard resistance range of the adjustable resistance
It is 1~5 kilo-ohm.
As further improved, the resistance value of the first resistor is greater than the resistance value of the second resistance.
As further improved, the resistance value of the first resistor is 100~150 Europe；The resistance value of the second resistance is
50~100 Europe.
As further improved, the transmitting unit and the receiving unit are respectively arranged at the both ends of interconnecting piece,
When the interconnecting piece disconnects, the operational amplifier does not generate output.
The beneficial effects of the utility model are: the warning circuit provided by the utility model based on photoelectric sensing, pass through by
Transmitting unit and receiving unit are respectively arranged at the both ends of the interconnecting piece, when the interconnecting piece occurs dislocation or disconnects,
The operational amplifier will not generate output, to be prompted or be warned.In addition, passing through the first resistor, described second
The safety and stability of the light emitting diode can be improved in the setting of resistance and the diode.
Detailed description of the invention
It, below will be to required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
The attached drawing used is briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore not
It should be considered as the restriction to range, for those of ordinary skill in the art, without creative efforts,
It can also be obtained according to these attached drawings other relevant attached drawings.
Fig. 1 is the structural schematic diagram of the warning circuit provided by the embodiment of the utility model based on photoelectric sensing.
Specific embodiment
It is practical below in conjunction with this to keep the purposes, technical schemes and advantages of the utility model embodiment clearer
The technical solution in the utility model embodiment is clearly and completely described in attached drawing in novel embodiment, shows
So, described embodiment is a part of embodiment of the utility model, rather than whole embodiments.It is practical based on this
Embodiment in novel, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment is fallen within the protection scope of the utility model.Therefore, the implementation to the utility model provided in the accompanying drawings below
The detailed description of mode is not intended to limit the range of claimed invention, but is merely representative of the utility model
Selected embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative labor
Every other embodiment obtained under the premise of dynamic, fall within the protection scope of the utility model.
Term " first ", " second " are used for description purposes only in the description of the present invention, and should not be understood as indicating
Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " are defined as a result,
Feature can explicitly or implicitly include one or more of the features.In the description of the present invention, " multiple "
It is meant that two or more, unless otherwise specifically defined.
Shown in referring to Fig.1, a kind of warning circuit based on photoelectric sensing, comprising: transmitting unit and receiving unit；It is described
Receiving unit includes: capacitor (A), first resistor (R1), second resistance (R2), light emitting diode (C), diode (B)；It is described to connect
Receiving unit includes 3rd resistor (R3), light-sensitive element (D), operational amplifier (E) and adjustable resistance (R4)；The first resistor
(R1) it is series between power end and ground terminal with the second resistance (R2)；One end of the capacitor (A) is connected to described
Between one resistance (R1) and the second resistance (R2), the other end anode and light emitting diode with the diode (B) respectively
(C) cathode connection, the plus earth setting of the cathode and light emitting diode (C) of the diode (B)；The light emitting diode
(C) it is arranged with the light-sensitive element (D) face；One end of the light-sensitive element (D) connects the 3rd resistor (R3) and is followed by electricity
Source, and the non-inverting input terminal of the operational amplifier (E) is connected simultaneously, the other end of the light-sensitive element (D) is grounded setting；
Two fixing ends of the adjustable resistance (R4) are separately connected the power end and the ground terminal, and adjustable side connects the fortune
Calculate the inverting input terminal of amplifier (E)；The positive power source terminal and negative power end of the operational amplifier (E) be separately connected power end with
Ground terminal.
As further improved, the resistance value of the 3rd resistor (R3) is 5~10 kilo-ohms, the adjustable resistance (R4)
Standard resistance range is 1~5 kilo-ohm.
As further improved, resistance value of the resistance value greater than the second resistance (R2) of the first resistor (R1).
As further improved, the resistance value of the first resistor (R1) is 100~150 Europe；The second resistance (R2)
Resistance value be 50~100 Europe.
As further improved, the transmitting unit and the receiving unit are respectively arranged at the both ends of interconnecting piece,
When the interconnecting piece disconnects, the operational amplifier (E) does not generate output.
Above description is merely a prefered embodiment of the utility model, is not intended to limit the utility model, for
For those skilled in the art, various modifications and changes may be made to the present invention.All spirit and original in the utility model
Within then, any modification, equivalent replacement, improvement and so on be should be included within the scope of protection of this utility model.
Claims (5)
1. a kind of warning circuit based on photoelectric sensing characterized by comprising transmitting unit and receiving unit；It is described to connect
Receiving unit includes: capacitor (A), first resistor (R1), second resistance (R2), light emitting diode (C), diode (B)；The reception
Unit includes 3rd resistor (R3), light-sensitive element (D), operational amplifier (E) and adjustable resistance (R4)；The first resistor
(R1) it is series between power end and ground terminal with the second resistance (R2)；One end of the capacitor (A) is connected to described
Between one resistance (R1) and the second resistance (R2), the other end anode and light emitting diode with the diode (B) respectively
(C) cathode connection, the plus earth setting of the cathode and light emitting diode (C) of the diode (B)；The light emitting diode
(C) it is arranged with the light-sensitive element (D) face；One end of the light-sensitive element (D) connects the 3rd resistor (R3) and is followed by electricity
Source, and the non-inverting input terminal of the operational amplifier (E) is connected simultaneously, the other end of the light-sensitive element (D) is grounded setting；
Two fixing ends of the adjustable resistance (R4) are separately connected the power end and the ground terminal, and adjustable side connects the fortune
Calculate the inverting input terminal of amplifier (E)；The positive power source terminal and negative power end of the operational amplifier (E) be separately connected power end with
Ground terminal.
2. the warning circuit according to claim 1 based on photoelectric sensing, which is characterized in that the 3rd resistor (R3)
Resistance value is 5~10 kilo-ohms, and the Standard resistance range of the adjustable resistance (R4) is 1~5 kilo-ohm.
3. the warning circuit according to claim 2 based on photoelectric sensing, which is characterized in that the first resistor (R1)
Resistance value is greater than the resistance value of the second resistance (R2).
4. the warning circuit according to claim 3 based on photoelectric sensing, which is characterized in that the first resistor (R1)
Resistance value is 100~150 Europe；The resistance value of the second resistance (R2) is 50~100 Europe.
5. the warning circuit according to claim 1 based on photoelectric sensing, which is characterized in that the transmitting unit and institute
The both ends that receiving unit is respectively arranged at interconnecting piece are stated, the operational amplifier (E) does not generate defeated when the interconnecting piece disconnects
Out.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821957273.5U CN209401152U (en) | 2018-11-26 | 2018-11-26 | Warning circuit based on photoelectric sensing |
| PCT/CN2018/118630 WO2020107417A1 (en) | 2018-11-26 | 2018-11-30 | Warning circuit based on photoelectric sensing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821957273.5U CN209401152U (en) | 2018-11-26 | 2018-11-26 | Warning circuit based on photoelectric sensing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209401152U true CN209401152U (en) | 2019-09-17 |
Family
ID=67880932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821957273.5U Active CN209401152U (en) | 2018-11-26 | 2018-11-26 | Warning circuit based on photoelectric sensing |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN209401152U (en) |
| WO (1) | WO2020107417A1 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3938117A (en) * | 1974-09-20 | 1976-02-10 | Ford Motor Company | Critical liquid-level warning circuit |
| CN102749501B (en) * | 2012-08-01 | 2015-01-21 | 电子科技大学 | Isolated direct current high voltage detection method and isolated direct current high voltage detection circuit |
| CN203116851U (en) * | 2013-03-28 | 2013-08-07 | 嘉兴市英力电子科技有限公司 | Improved photosensitive sensor circuit |
| CN205643483U (en) * | 2016-05-24 | 2016-10-12 | 新奥科技发展有限公司 | Voltage detection circuit and system |
| CN206149541U (en) * | 2016-08-31 | 2017-05-03 | 北京金晟达生物电子科技有限公司 | Dimmer circuit is kept apart to voltage -controlled formula |
-
2018
- 2018-11-26 CN CN201821957273.5U patent/CN209401152U/en active Active
- 2018-11-30 WO PCT/CN2018/118630 patent/WO2020107417A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020107417A1 (en) | 2020-06-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200930 Address after: Room 201, No.22, Jinhu Road, Huli District, Xiamen City, Fujian Province Patentee after: Xiamen Jinghe automation equipment Co., Ltd Address before: 361000, three Jimei Avenue, Jimei District, Xiamen, Fujian Province, three, room 312 Patentee before: XIAMEN CHENGXIN ZHICHUANG TECHNOLOGY SERVICE Co.,Ltd. |
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| TR01 | Transfer of patent right |