CN108761299A - A kind of fast testing system and its test method of two-way trigger element - Google Patents
A kind of fast testing system and its test method of two-way trigger element Download PDFInfo
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- CN108761299A CN108761299A CN201810523696.4A CN201810523696A CN108761299A CN 108761299 A CN108761299 A CN 108761299A CN 201810523696 A CN201810523696 A CN 201810523696A CN 108761299 A CN108761299 A CN 108761299A
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- trigger element
- way trigger
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- 238000012360 testing method Methods 0.000 title claims abstract description 49
- 238000010998 test method Methods 0.000 title abstract description 5
- 238000005070 sampling Methods 0.000 claims abstract description 45
- 238000005259 measurement Methods 0.000 claims abstract description 17
- 230000015556 catabolic process Effects 0.000 claims abstract description 12
- 230000001066 destructive effect Effects 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 6
- 238000004088 simulation Methods 0.000 claims description 3
- 230000002457 bidirectional effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000009514 concussion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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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
- G01R31/26—Testing of individual semiconductor devices
- G01R31/2607—Circuits therefor
- G01R31/2632—Circuits therefor for testing diodes
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Individual Semiconductor Devices (AREA)
Abstract
System of the present invention provides a kind of fast testing system and its test method of two-way trigger element, and setting signal input module exports positive and negative alternate initial signal, positive and negative alternate continuous wave signal is exported after D/A converter module；Continuous wave signal drives two-way trigger element work, voltage measurement module to obtain two-way trigger element voltage data；Sampling and keep module carries out sampling holding to the real-time voltage data from voltage measurement module, and positive half period sampling holder obtains destructive positive voltage VBO+, negative half-cycle sampling holder, which obtains, bears breakdown voltage VBO‑, subtracter receives VBO+And VBO‑Data and calculate Δ V=| VBO+|‑|VBO‑|.The electric parameter detecting of two-way trigger element can be rapidly completed in the present invention, can disposably complete the test of forward and reverse electrical parameter of two-way trigger element, and test operation is easy, and without the artificial operation for carrying out positive-negative connected commutation, testing efficiency is high.
Description
Technical field
The present invention relates to the tests of two-way trigger element, specifically disclose a kind of fast testing system of two-way trigger element
And its test method.
Background technology
Two-way trigger element refers generally to bidirectional trigger diode, for triggering bidirectional thyristor, also constitutes overvoltage protection
Circuit.The break over voltage of bidirectional trigger diode can be used for judging the quality of diode, and break over voltage is generally with destructive positive voltage
It is indicated with the difference of negative breakdown voltage.
Prior art generally use voltmeter just connecing respectively with reversal connection bidirectional trigger diode, to obtain destructive positive voltage
With negative breakdown voltage, break over voltage is obtained by calculating, but this method needs the connection of constantly switching bidirectional trigger diode
Direction, entire test operation is cumbersome, and testing efficiency is low, and measuring accuracy is not high.
Invention content
Based on this, it is necessary to be directed to prior art problem, provide a kind of two-way trigger element fast testing system and its
Test method, test operation is easy, can disposably complete to test, and testing efficiency is high.
To solve prior art problem, the present invention discloses a kind of fast testing system of two-way trigger element, including successively
The both ends of concatenated signal input module, D/A converter module and two-way trigger element, two-way trigger element are parallel with voltage survey
Module is measured, the output end of voltage measurement module has been sequentially connected in series sampling and keep module and subtracter, and sampling and keep module includes simultaneously
The positive half period sampling holder and negative half-cycle sampling holder of connection.
Further, voltage measurement module is voltmeter.
Further, also it is in series with amplifier between D/A converter module and two-way trigger element.
Further, current limliting filter module is also associated between amplifier and two-way trigger element.
Further, current limliting filter module includes resistance and capacitance, resistance be series at amplifier and two-way trigger element it
Between, capacitance is parallel to the both ends of two-way trigger element.
Invention additionally discloses a kind of method for rapidly testing of two-way trigger element, include the following steps：
A, setting signal input module exports positive and negative alternate initial signal, and initial signal is defeated after D/A converter module
Go out positive and negative alternate continuous wave signal；
B, positive and negative alternate continuous wave signal simulation just connects, reversal connection and two-way trigger element is driven to work, voltage measurement mould
Block obtains two-way trigger element voltage data；
C, sampling and keep module carries out sampling holding to the real-time voltage data from voltage measurement module, and positive half period is adopted
Sample retainer obtains destructive positive voltage VBO+, negative half-cycle sampling holder, which obtains, bears breakdown voltage VBO-, subtracter receives VBO+
And VBO-Data and calculate positive and negative breakdown potential pressure differential deltap V=| VBO+|-|VBO|, | Δ V | in the range of the permission of standard value
Inside then two-way trigger element test passes.
Further, in step a, the period of initial signal is 10ms.
Beneficial effects of the present invention are：The present invention discloses fast testing system and its test side of a kind of two-way trigger element
Special structure is arranged in method, and the electric parameter detecting of two-way trigger element can be rapidly completed, by two-way trigger element connect into
In test system, the test of forward and reverse electrical parameter of two-way trigger element can be disposably completed, test operation is easy, is not necessarily to
The artificial operation for carrying out positive-negative connected commutation, testing efficiency is high, can be quickly obtained test result, and measuring accuracy is high.
Description of the drawings
Fig. 1 is the structural schematic diagram of test system of the present invention.
Fig. 2 is the circuit diagram of current limliting filter module in the present invention.
Fig. 3 is the circuit diagram of sampling and keep module in the present invention.
Fig. 4 is the initial signal oscillogram of signal input module in the present invention.
Fig. 5 is the concussion oscillogram of two-way trigger element in the present invention.
Fig. 6 is the voltage-time curve figure of sampling and keep module in the present invention.
Reference numeral is：Signal input module 10, D/A converter module 20, two-way trigger element 30, voltage measurement module
40, sampling and keep module 50, positive half period sampling holder 51, negative half-cycle sampling holder 52, subtracter 60, amplifier
70, current limliting filter module 80.
Specific implementation mode
For that can further appreciate that the feature, technological means and the specific purposes reached, function of the present invention, with reference to
Present invention is further described in detail with specific implementation mode for attached drawing.
Referring to figs. 1 to Fig. 6.
The embodiment of the present invention discloses a kind of fast testing system of two-way trigger element, as shown in Figure 1, including being sequentially connected in series
Signal input module 10, D/A converter module 20 and two-way trigger element 30, the output end of signal input module 10 connects number
The input terminal of mould conversion module 20, the output end of D/A converter module 20 connect the anode of two-way trigger element 30, two-way triggering
The cathode of element 30 is grounded, and the both ends of two-way trigger element 30 are parallel with voltage measurement module 40, voltage measurement module 40 it is defeated
Outlet has been sequentially connected in series sampling and keep module 50 and subtracter 60, and the circuit structure of sampling and keep module 50 is as shown in figure 3, sampling
The positive half period sampling holder 51 and negative half-cycle sampling holder 52 that module 50 includes in parallel, positive half period sampling is kept to protect
Holder 51 is the sampling hold circuit that sampling keeps first quartile, i.e. sampling keeps V>0 data, negative half-cycle sampling holder
52 be the sampling hold circuit that sampling keeps the second quadrant, i.e. sampling keeps V<0 data.
Special structure is arranged in the present invention, and the electric parameter detecting of two-way trigger element can be rapidly completed, and is touched two-way
Hair element connects in test system, can disposably complete the test of forward and reverse electrical parameter of two-way trigger element, tests
Easy to operate, without the artificial operation for carrying out positive-negative connected commutation, testing efficiency is high, can be quickly obtained test result, and test
Precision is high.
In the present embodiment, voltage measurement module 40 is voltmeter, and voltage measurement module 40 can also be that voltage is supervised online
Survey device.
In the present embodiment, it is also in series with amplifier 70 between D/A converter module 20 and two-way trigger element 30, amplifies
Device 70 is general amplifying circuit, and amplifier 70 can effectively improve measuring accuracy, the output end connection of D/A converter module 20
The input terminal of amplifier 70, the output end of amplifier 70 connect the anode of two-way trigger element 30.
In the present embodiment, current limliting filter module 80 is also associated between amplifier 70 and two-way trigger element 30, such as Fig. 2
Shown, current limliting filter module 80 includes resistance 81 and capacitance 82, resistance 81 be series at amplifier 70 and two-way trigger element 30 it
Between, capacitance 82 is parallel to the both ends of two-way trigger element 30.Current limliting filter module 80 can effectively exclude two-way trigger element 30
It is influenced by other factors when test, to effectively improve test result.
A kind of method for rapidly testing of two-way trigger element is also disclosed in the embodiment of the present invention, includes the following steps：
A, setting signal input module 10 exports positive and negative alternate initial signal, and the waveform of initial signal is as shown in figure 4, just
Beginning signal exports positive and negative alternate continuous wave signal after D/A converter module 20；
B, positive and negative alternate continuous wave signal simulation just connects, reversal connection and two-way trigger element 30 is driven to work, two-way triggering
Sasser shape when element 30 works is as shown in figure 5, voltage measurement module 40 obtains 30 voltage data of two-way trigger element；
C, sampling and keep module 50 carries out sampling holding to the real-time voltage data from voltage measurement module 40, and sampling is protected
The voltage-time curve of module 50 is held as shown in fig. 6, positive half period sampling holder 51 obtains destructive positive voltage VBO+, negative half period
Phase sampling holder 52, which obtains, bears breakdown voltage VBO-, subtracter 60 receives VBO+And VBO-Data and calculate positive and negative breakdown
Voltage difference delta V=| VBO+|-|VBO-|, | Δ V | it is break over voltage, | Δ V | the then two-way triggering in the range of permission of standard value
30 test passes of element.
Positive and negative alternate pulse signal is arranged in the present invention, can simulate the behaviour that positive-negative connected is carried out to two-way trigger element 30
Make, carries out positive-negative connected operation without human hand, can effectively simplify test operation；Coordinate positive and negative half period sampling holder can be fast
Speed obtains the positive and negative breakdown voltage of two-way trigger element 30, can be quickly obtained break over voltage, and judge two-way trigger element 30
Performance.To improve the reliability of test result, sampling and keep module 50 can obtain the data of multigroup positive and negative breakdown voltage,
Calculate positive and negative average voltage breakdown, then calculated break over voltage is more representative, and the operation of multigroup sampling is relative to existing
There is the simple operation performance higher of technology.
In the present embodiment, in step a, the period of initial signal is 10ms, disclosure satisfy that most of two-way trigger element
30 test, while can effectively shorten the testing time.
Several embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
Cannot the limitation to the scope of the claims of the present invention therefore be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (7)
1. a kind of fast testing system of two-way trigger element, which is characterized in that including the signal input module being sequentially connected in series
(10), the both ends of D/A converter module (20) and two-way trigger element (30), the two-way trigger element (30) are parallel with voltage
The output end of measurement module (40), the voltage measurement module (40) has been sequentially connected in series sampling and keep module (50) and subtracter
(60), the sampling and keep module (50) includes positive half period sampling holder (51) and negative half-cycle sampling holder in parallel
(52)。
2. a kind of fast testing system of two-way trigger element according to claim 1, which is characterized in that the voltage is surveyed
It is voltmeter to measure module (40).
3. a kind of fast testing system of two-way trigger element according to claim 1, which is characterized in that the digital-to-analogue turns
It is also in series with amplifier (70) between mold changing block (20) and two-way trigger element (30).
4. a kind of fast testing system of two-way trigger element according to claim 3, which is characterized in that the amplifier
(70) current limliting filter module (80) is also associated between the two-way trigger element (30).
5. a kind of fast testing system of two-way trigger element according to claim 4, which is characterized in that the current limliting filter
Wave module (80) includes resistance (81) and capacitance (82), and the resistance (81) is series at the amplifier (70) and described two-way touches
Between sending out element (30), the capacitance (82) is parallel to the both ends of the two-way trigger element (30).
6. a kind of method for rapidly testing of two-way trigger element, which is characterized in that any described two-way using Claims 1 to 5
The fast testing system of trigger element, includes the following steps：
A, setting signal input module (10) exports positive and negative alternate initial signal, and initial signal passes through D/A converter module (20)
After export positive and negative alternate continuous wave signal；
B, positive and negative alternate continuous wave signal simulation just connects, reversal connection and two-way trigger element (30) is driven to work, voltage measurement mould
Block (40) obtains two-way trigger element (30) voltage data；
C, sampling and keep module (50) carries out sampling holding to the real-time voltage data for coming from the voltage measurement module (40), just
Half period sampling holder (51) obtains destructive positive voltage VBO+, negative half-cycle sampling holder (52), which obtains, bears breakdown voltage
VBO-, subtracter (60) receives VBO+And VBO-Data and calculate positive and negative breakdown potential pressure differential deltap V=| VBO+|-|VBO-|, | Δ V
| then two-way trigger element (30) test passes in the range of permission of standard value.
7. a kind of method for rapidly testing of two-way trigger element according to claim 6, which is characterized in that in step a, just
The period of beginning signal is 10ms.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810523696.4A CN108761299A (en) | 2018-05-28 | 2018-05-28 | A kind of fast testing system and its test method of two-way trigger element |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810523696.4A CN108761299A (en) | 2018-05-28 | 2018-05-28 | A kind of fast testing system and its test method of two-way trigger element |
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| CN108761299A true CN108761299A (en) | 2018-11-06 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1361935A (en) * | 1999-08-13 | 2002-07-31 | 约克国际公司 | Method and apparatus for detecting a failed thyristor |
| CN102539875A (en) * | 2010-12-07 | 2012-07-04 | 西安华澳电子科技有限公司 | Bidirectional peak voltage detector |
| CN203881478U (en) * | 2014-04-01 | 2014-10-15 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Electric transmission line sag monitoring device |
| CN105572558A (en) * | 2015-12-09 | 2016-05-11 | 浙江大学 | Power diode module working junction temperature on-line detection system and detection method |
| CN106154134A (en) * | 2016-06-18 | 2016-11-23 | 温州大学 | A kind of IGCT four-quadrant trigger characteristic parameter test device |
| CN208334559U (en) * | 2018-05-28 | 2019-01-04 | 东莞市佳骏电子科技有限公司 | A kind of fast testing system of two-way trigger element |
-
2018
- 2018-05-28 CN CN201810523696.4A patent/CN108761299A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1361935A (en) * | 1999-08-13 | 2002-07-31 | 约克国际公司 | Method and apparatus for detecting a failed thyristor |
| CN102539875A (en) * | 2010-12-07 | 2012-07-04 | 西安华澳电子科技有限公司 | Bidirectional peak voltage detector |
| CN203881478U (en) * | 2014-04-01 | 2014-10-15 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Electric transmission line sag monitoring device |
| CN105572558A (en) * | 2015-12-09 | 2016-05-11 | 浙江大学 | Power diode module working junction temperature on-line detection system and detection method |
| CN106154134A (en) * | 2016-06-18 | 2016-11-23 | 温州大学 | A kind of IGCT four-quadrant trigger characteristic parameter test device |
| CN208334559U (en) * | 2018-05-28 | 2019-01-04 | 东莞市佳骏电子科技有限公司 | A kind of fast testing system of two-way trigger element |
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Application publication date: 20181106 |