CN105651443A - Compression alarm output circuit - Google Patents
Compression alarm output circuit Download PDFInfo
- Publication number
- CN105651443A CN105651443A CN201610024693.7A CN201610024693A CN105651443A CN 105651443 A CN105651443 A CN 105651443A CN 201610024693 A CN201610024693 A CN 201610024693A CN 105651443 A CN105651443 A CN 105651443A
- Authority
- CN
- China
- Prior art keywords
- circuit
- output circuit
- alarm output
- compression
- operational amplifier
- 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.)
- Pending
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The invention provides a compression alarm output circuit which is characterized in that the compression alarm output circuit comprises resistors R1 and R2 and an operational amplifier A1, the resistors R1 and R2 are serially connected to a power supply Vset2 end and a ground end, wherein the resistor R2 is a piezoresistor; and a positive phase input end of the operational amplifier A1 is connected with the resistor R2 to obtain the voltage of the resistor R2, and a negative phase input end is connected with an external preset voltage Vset1, and an output end is connected to an alarm signal output end Vout of the circuit. The compression alarm output circuit has the advantages that the circuit is simple in structure and small in size, the circuit is directly laid in each part of a chip circuit to discover compression condition in time and send out alarms, the damage and the maintenance trouble are avoided proactively, the compression alarm output circuit is excellent in both economic performance and practicability, and the compression alarm output circuit is suitable of popularization and usage.
Description
Technical field
The present invention relates to a kind of pressurized alarm output circuit.
Background technology
When suffering external force pressure or bending when chip circuit, chip circuit can be caused the damage of unrepairable. In general, chip circuit directly fall touch, situation about pressing less, be more owing to installation site is accurately calibrated, cause circuit board to deform, more difficult in the short time pinpoint the problems, only just can learn after component fail in compression. Now, how engineer detects reparation circuit if not only having a headache, and the most important thing is that equipment cannot work, and causes direct economic loss. If we can deform at circuit board, the element unspoiled time finds that problem, a lot of trouble will be exempted.
Summary of the invention
In view of problem mentioned in background technology, the present invention proposes a kind of pressurized alarm output circuit, and its circuit structure is simple, compact, is directly in the layout of each portion of chip circuit, finds pressurized situation in time and makes warning, and its technical scheme is as follows:
A kind of pressurized alarm output circuit, including resistance R1, R2, and operational amplifier A 1, described resistance R1 and R2 is connected in series between power supply Vset2 end and ground end, and wherein, described resistance R2 is varistor; The normal phase input end of described operational amplifier A 1 connects resistance R2 to obtain its voltage, and the predeterminated voltage Vset1 outside negative-phase input connection, outfan is connected to the alarm signal output ends Vout of circuit.
The invention has the beneficial effects as follows: circuit structure is simple, compact, directly it is in the layout of each portion of chip circuit, find pressurized situation in time and make warning, avoid the trouble of loss and maintenance perspectively, no matter from economy or practicality, it is all the product possessing excellent performance, is suitable for promoting the use of.
Accompanying drawing explanation
Fig. 1 is the structure principle chart of the pressurized alarm output circuit of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the application scheme is further described:
A kind of pressurized alarm output circuit, including resistance R1, R2, and operational amplifier A 1, described resistance R1 and R2 is connected in series between power supply Vset2 end and ground end, and wherein, described resistance R2 is varistor; The normal phase input end of described operational amplifier A 1 connects resistance R2 to obtain its voltage, and the predeterminated voltage Vset1 outside negative-phase input connection, outfan is connected to the alarm signal output ends Vout of circuit.
Above-mentioned preferred implementation should be regarded as the illustration of the application scheme embodiment, all identical with the application scheme, approximate or make based on this technology deduction, replacement, improvement etc., be regarded as the protection domain of this patent.
Claims (1)
1. a pressurized alarm output circuit, it is characterised in that: including resistance R1, R2 and operational amplifier A 1, described resistance R1 and R2 is connected in series between power supply Vset2 end and ground end, and wherein, described resistance R2 is varistor; The normal phase input end of described operational amplifier A 1 connects resistance R2 to obtain its voltage, and the predeterminated voltage Vset1 outside negative-phase input connection, outfan is connected to the alarm signal output ends Vout of circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610024693.7A CN105651443A (en) | 2016-01-15 | 2016-01-15 | Compression alarm output circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610024693.7A CN105651443A (en) | 2016-01-15 | 2016-01-15 | Compression alarm output circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105651443A true CN105651443A (en) | 2016-06-08 |
Family
ID=56487243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610024693.7A Pending CN105651443A (en) | 2016-01-15 | 2016-01-15 | Compression alarm output circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105651443A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040201387A1 (en) * | 2003-04-08 | 2004-10-14 | Fairchild M. Ray | Circuitry for measuring mechanical stress impressed on a printed circuit board |
| CN102928146A (en) * | 2012-11-07 | 2013-02-13 | 昆山北极光电子科技有限公司 | Pressure measurement device of rotating body |
| CN204286659U (en) * | 2014-11-17 | 2015-04-22 | 天津市津达执行器有限公司 | A kind of torsion detection alarm module |
| CN105241591A (en) * | 2015-10-30 | 2016-01-13 | 湖北航天技术研究院总体设计所 | Adjustable retardation pressure alarm device |
-
2016
- 2016-01-15 CN CN201610024693.7A patent/CN105651443A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040201387A1 (en) * | 2003-04-08 | 2004-10-14 | Fairchild M. Ray | Circuitry for measuring mechanical stress impressed on a printed circuit board |
| CN102928146A (en) * | 2012-11-07 | 2013-02-13 | 昆山北极光电子科技有限公司 | Pressure measurement device of rotating body |
| CN204286659U (en) * | 2014-11-17 | 2015-04-22 | 天津市津达执行器有限公司 | A kind of torsion detection alarm module |
| CN105241591A (en) * | 2015-10-30 | 2016-01-13 | 湖北航天技术研究院总体设计所 | Adjustable retardation pressure alarm device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160608 |
|
| RJ01 | Rejection of invention patent application after publication |