CN106950418A - The determination methods of bidirectional triode thyristor alternating current break-make - Google Patents
The determination methods of bidirectional triode thyristor alternating current break-make Download PDFInfo
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- CN106950418A CN106950418A CN201710170562.4A CN201710170562A CN106950418A CN 106950418 A CN106950418 A CN 106950418A CN 201710170562 A CN201710170562 A CN 201710170562A CN 106950418 A CN106950418 A CN 106950418A
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- pin
- triode thyristor
- bidirectional triode
- signal
- alternating current
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- 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
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
- G01R19/2506—Arrangements for conditioning or analysing measured signals, e.g. for indicating peak values ; Details concerning sampling, digitizing or waveform capturing
- G01R19/2509—Details concerning sampling, digitizing or waveform capturing
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- 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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
Abstract
The invention discloses a kind of determination methods of bidirectional triode thyristor alternating current break-make, comprise the following steps：S1：When connecting the alternating current of bidirectional triode thyristor, AD signal samplings are carried out to 1 pin to 3 pin of bidirectional triode thyristor by CPU, 1 pin to 3 pin signal graphs is obtained, threshold values is set according to signal graph；S2：In use, the AD sampling pin signal values of bidirectional triode thyristor 3 continue a preset time, wherein, preset time is more than half exchange clock cycle, judge whether the signal value of sampling occurs the signal value more than setting threshold values, have, to there is electric current to pass through, pass through without then no current；S3：Step S2 is performed repeatedly, is terminated until using.The present invention can be by judging whether the signal value of sampling is occurred more than the signal value for setting threshold values, and sampled and judged by continuously AD, real-time judge can be carried out to bidirectional triode thyristor alternating current break-make, circuit structure is simple, determination methods are simple, judge high precision.
Description
Technical field
The present invention relates to electronic device field, more particularly to a kind of judgement side of bidirectional triode thyristor alternating current break-make
Method.
Background technology
Routine resistance is as current sensor, and ohmically alternating voltage is used as judgement letter after over commutation and amplification
Number, for being also required to judge whether controllable silicon just really has electric current after to trigger signal in the application (closed-loop control) of controllable silicon
Pass through, this is usually required in circuit, and series resistance is as current sensor, and ohmically voltage signal is through over commutation and amplification
CPU judgements are given after processing.
Thus, by series resistance, resistance easily generates heat, product service life is influenceed, and it is further desired that rectification and amplification
Circuit, circuit structure is more complicated, and use cost is higher, judges that precision is low.
Therefore, the prior art is defective, it is necessary to improve.
The content of the invention
The technical problems to be solved by the invention are：There is provided a kind of circuit structure simple, determination methods are simple, judge precision
The determination methods of high bidirectional triode thyristor alternating current break-make.
Technical scheme is as follows：A kind of determination methods of bidirectional triode thyristor alternating current break-make, including following step
Suddenly：S1：When connecting the alternating current of bidirectional triode thyristor, AD signals are carried out to 1 pin to 3 pin of bidirectional triode thyristor by CPU and adopted
Sample, obtains 1 pin to 3 pin signal graphs, and threshold values is set according to signal graph；S2：In use, the pin of AD signal samplings bidirectional triode thyristor 3 is believed
Number value continues a preset time, wherein, preset time is more than half exchange clock cycle, judges whether the signal value sampled has
There is the signal value for being more than setting threshold values, have, to there is electric current to pass through, pass through without then no current；S3：Step S2 is performed repeatedly, directly
To using terminating.
Applied to above-mentioned technical proposal, in described determination methods, in step S1：The threshold values set is 1 pin to 3 pin signals
The 50% of maximum.
Applied to above-mentioned technical proposal, in described determination methods, in step S2, the pin of AD signal samplings bidirectional triode thyristor 3 letter
It is more than 13 milliseconds that number value, which continues a preset time,.
Using such scheme, the present invention, using 1 pin to 3 pin signal graphs, makes the AD signal sampling times big by setting threshold values
The clock cycle is exchanged in half, the signal value for setting threshold values can be more than by judging whether the signal value of sampling occurs, such as
It is judged as having more than that the signal value of the threshold values of setting occurs, then to there is electric current to pass through, is such as judged as being not above the threshold values of setting
Signal value occur, then no current passes through；And by continuously AD signal samplings and judgement, bidirectional triode thyristor can be handed over
Flow current switching and carry out real-time judge, circuit structure is simple, and determination methods are simple, judge high precision.
Brief description of the drawings
Fig. 1 is the circuit structure diagram of invention；
Fig. 2 be invention in have electric current by when the pin of bidirectional triode thyristor 1 to 3 pin signal graph.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
A kind of determination methods of bidirectional triode thyristor alternating current break-make are present embodiments provided, the determination methods include as follows
Step：First, step S1：When connecting the alternating current of bidirectional triode thyristor, 1 pin to 3 pin of bidirectional triode thyristor is entered by CPU
Row AD signal samplings, obtain 1 pin to 3 pin signal graphs as shown in Fig. 2 curve 201 is bent by the alternating current of bidirectional triode thyristor
Line, curve 202 carries out the signal value of AD signal samplings for 1 pin to 3 pin of bidirectional triode thyristor, then according to 1 pin to 3 pin signal graphs
Carry out the threshold values of setting signal value, usually, the threshold values of signal value is set to 1 pin to the 50% of 3 pin signal maximums.
After threshold values is set, step S2 is performed, i.e., when actually used, as shown in Fig. 2 passing through CPU AD samplings pair
Signal value to controllable silicon MOC3083 3 pin continues a preset time, wherein, preset time is more than half exchange clock week
Phase, for example, the 50HZ exchange clock cycle is 20 milliseconds, then AD uses duration for more than 10 milliseconds；60HZ exchange
Clock cycle is 18.7 milliseconds, then AD uses duration for more than 9.4 milliseconds；Preferably, lasting AD signals can be adopted
The set of time of sample is more than 13 milliseconds, thus, can be by judging whether the signal value of sampling is occurred more than setting threshold values
Signal value, the signal value for being such as judged as having more than the threshold values of setting occurs, then to there is electric current to pass through, is such as judged as being not above
The signal value of the threshold values of setting occurs, then no current passes through.
Also, last S3, i.e., perform step S2 repeatedly, until using terminating, AD signal samplings are made in time endlessly
Perform and use and judge, thus, can judge in real time bidirectional triode thyristor, it is ensured that be loaded with electric current and pass through, and in time
Pinpoint the problems and solve.
These are only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Any modification, equivalent and improvement for being made within principle etc., should be included within the scope of the present invention.
Claims (3)
1. a kind of determination methods of bidirectional triode thyristor alternating current break-make, it is characterised in that comprise the following steps：
S1：When connecting the alternating current of bidirectional triode thyristor, AD signals are carried out to 1 pin to 3 pin of bidirectional triode thyristor by CPU and adopted
Sample, obtains 1 pin to 3 pin signal graphs, and threshold values is set according to signal graph；
S2：In use, the pin signal value of AD signal samplings bidirectional triode thyristor 3 continues a preset time, wherein, preset time be more than
Half of exchange clock cycle, judge whether the signal value of sampling occurs the signal value more than setting threshold values, have, to there is electric current
Pass through, pass through without then no current；
S3：Step S2 is performed repeatedly, is terminated until using.
2. determination methods according to claim 1, it is characterised in that in step S1：Threshold values is set as 1 pin to 3 pin signals
The 50% of maximum.
3. determination methods according to claim 1, it is characterised in that in step S2, the pin of AD signal samplings bidirectional triode thyristor 3 letter
Number value continues a preset time to be persistently more than 13 milliseconds.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710170562.4A CN106950418B (en) | 2017-03-21 | 2017-03-21 | The judgment method of bidirectional triode thyristor alternating current on-off |
| PCT/CN2017/107516 WO2018171188A1 (en) | 2017-03-21 | 2017-10-24 | Method for determining connection or disconnection of alternating current of bidirectional control thyristor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710170562.4A CN106950418B (en) | 2017-03-21 | 2017-03-21 | The judgment method of bidirectional triode thyristor alternating current on-off |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106950418A true CN106950418A (en) | 2017-07-14 |
| CN106950418B CN106950418B (en) | 2019-05-17 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710170562.4A Active CN106950418B (en) | 2017-03-21 | 2017-03-21 | The judgment method of bidirectional triode thyristor alternating current on-off |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106950418B (en) |
| WO (1) | WO2018171188A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018171188A1 (en) * | 2017-03-21 | 2018-09-27 | 深圳市复兴伟业技术有限公司 | Method for determining connection or disconnection of alternating current of bidirectional control thyristor |
| CN114325056A (en) * | 2021-12-31 | 2022-04-12 | 北京紫光芯能科技有限公司 | Circuit for bidirectional current detection and mobile terminal |
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| US3859591A (en) * | 1973-07-02 | 1975-01-07 | Display Enterprises Inc | Soft turn-on power switching circuit |
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| CN100575967C (en) * | 2007-09-20 | 2009-12-30 | 上海交通大学 | AC spot-welding dynamic electric resistance real-time measuring device and method |
| CN101632851B (en) * | 2009-08-06 | 2011-07-27 | 戴维逊磁疗技术（厦门）有限公司 | Intelligent control device of thyristor |
| CN201821330U (en) * | 2010-08-08 | 2011-05-04 | 韩燕� | Low voltage thyristor control device |
| US9577623B2 (en) * | 2013-09-09 | 2017-02-21 | Microchip Technology Inc. | Capacitive parametric zero crossing detector device, circuit and method |
| CN204231318U (en) * | 2014-11-04 | 2015-03-25 | 许蓬 | A kind of ac solid relay |
| CN106154134B (en) * | 2016-06-18 | 2017-07-18 | 温州大学 | A kind of IGCT four-quadrant trigger characteristic parameter test device |
| CN106950418B (en) * | 2017-03-21 | 2019-05-17 | 深圳市复兴伟业技术有限公司 | The judgment method of bidirectional triode thyristor alternating current on-off |
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2017
- 2017-03-21 CN CN201710170562.4A patent/CN106950418B/en active Active
- 2017-10-24 WO PCT/CN2017/107516 patent/WO2018171188A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US3859591A (en) * | 1973-07-02 | 1975-01-07 | Display Enterprises Inc | Soft turn-on power switching circuit |
| CN1784607A (en) * | 2003-09-08 | 2006-06-07 | 德州仪器韩国有限公司 | AC current sensor using triac and method thereof |
| CN101227139A (en) * | 2007-01-15 | 2008-07-23 | 全能电业科技（深圳）有限公司 | Apparatus and method for controlling bidirectional thyristor |
| CN201218833Y (en) * | 2008-04-29 | 2009-04-08 | 比亚迪股份有限公司 | Controlled silicon detection apparatus |
| CN104600964A (en) * | 2013-10-31 | 2015-05-06 | 通用电气公司 | Voltage adapter system used in device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2018171188A1 (en) * | 2017-03-21 | 2018-09-27 | 深圳市复兴伟业技术有限公司 | Method for determining connection or disconnection of alternating current of bidirectional control thyristor |
| CN114325056A (en) * | 2021-12-31 | 2022-04-12 | 北京紫光芯能科技有限公司 | Circuit for bidirectional current detection and mobile terminal |
| CN114325056B (en) * | 2021-12-31 | 2024-02-27 | 北京紫光芯能科技有限公司 | Circuit for bidirectional current detection and mobile terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018171188A1 (en) | 2018-09-27 |
| CN106950418B (en) | 2019-05-17 |
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