CN108828423A - A kind of circuit, device, multimeter and method measuring thyristor - Google Patents
A kind of circuit, device, multimeter and method measuring thyristor Download PDFInfo
- Publication number
- CN108828423A CN108828423A CN201810613799.XA CN201810613799A CN108828423A CN 108828423 A CN108828423 A CN 108828423A CN 201810613799 A CN201810613799 A CN 201810613799A CN 108828423 A CN108828423 A CN 108828423A
- Authority
- CN
- China
- Prior art keywords
- thyristor
- analog switch
- main electrode
- circuit
- measuring
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000005259 measurement Methods 0.000 claims abstract description 27
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 230000002159 abnormal effect Effects 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 4
- 238000012360 testing method Methods 0.000 abstract description 17
- 230000002457 bidirectional effect Effects 0.000 abstract description 5
- 230000005611 electricity Effects 0.000 description 3
- 238000000691 measurement method Methods 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
Classifications
-
- 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
- G01R31/263—Circuits therefor for testing thyristors
-
- 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
- G01R15/12—Circuits for multi-testers, i.e. multimeters, e.g. for measuring voltage, current, or impedance at will
Abstract
The present invention relates to a kind of circuits for measuring thyristor, which is characterized in that including：At least two analog switches and processing unit, two analog switches are separately connected the processing unit, the wherein control electrode (G) of the first analog switch (S1) connection thyristor, 4th analog switch (S4) connects the second main electrode (T2) of the thyristor, the first main electrode (T1) ground connection of the thyristor.Circuit, device, multimeter and the method for one of present invention measurement thyristor, it may be implemented tested thyristor need to be only inserted into the corresponding interface of multimeter, it can directly judge the quality and conducting resistance of thyristor, experienced person can also be directly from reading come situations such as judging pin arrangements, such mode be all effective for the test of unidirectional thyristor and bidirectional thyristor simultaneously.
Description
Technical field
The invention belongs to field of measuring technique, and in particular to a kind of circuit, device, multimeter and side for measuring thyristor
Method.
Background technique
Thyristor can work as a kind of common switching electronics under the conditions of high voltage, high current, and its work
It can control as process, be widely used in the electronics such as controlled rectification, AC voltage adjusting, contactless electronic beam switch, inversion and frequency conversion
It is the equipment of typical Small current control high current in circuit.Its detection mode is common to be：Pass through two of existing multimeter
Test pencil distinguishes the different voltage across poles of repeated measurement, finally obtains the pin data of thyristor, but cannot but have with multimeter
The quality of the test thyristor of effect, led to and be broken certainly if surveying two electrode resistances, but it is obstructed be just not necessarily, brilliant lock
One electrode of pipe and control interpolar diode characteristic are unobvious, positive to lead to not at all or forward reverse resistance be all 0 is to be broken, but anti-
It can not say to " electric leakage " and just be broken, it can be effectively by being measured with the diode shelves of multimeter unlike common diode
According to whether forward conduction reversely ends to judge quality.And the test of bidirectional thyristor and unidirectional thyristor in the prior art
Method is also different, brings inconvenience to test.
Therefore to solve the above-mentioned problems, a kind of circuit, device, general-purpose for capableing of easy, intuitive measurement thyristor is provided
Table and its measurement method are particularly important.
Summary of the invention
In view of the above-mentioned problems, the object of the present invention is to provide a kind of circuit, device, multimeter and sides for measuring thyristor
Method solves the complexity and risk of thyristor measurement method in the prior art.
To achieve the above object, the present invention takes following technical scheme：
One of present invention measures the circuit of thyristor, including：At least two analog switches and processing unit, two
The analog switch is separately connected the processing unit, wherein the control electrode (G) of the first analog switch (S1) connection thyristor, the
Four analog switches (S4) connect the second main electrode (T2) of the thyristor, the first main electrode (T1) ground connection of the thyristor.
The circuit of above-mentioned measurement thyristor, it is preferred that further include：Third analog switch (S3), first analog switch
(S1) third analog switch (S3) is connected, the control electrode (G) of third analog switch (S3) the connection thyristor.
The circuit of above-mentioned measurement thyristor, it is preferred that further include：Second analog switch (S4), the 4th analog switch
(S4) second analog switch (S2) is connected, second analog switch (S2) connects the second main electrode of the thyristor
(T2)。
The circuit of above-mentioned measurement thyristor, it is preferred that further include：First resistor (R1) and second resistance (R2), it is described
One end of first resistor (R1) connects the third analog switch (S3), and the other end connects the control electrode (G) of the thyristor,
One end of the second resistance (R2) connects second analog switch (S2), and the other end connects the second master of the thyristor
Electrode (T2).
The circuit of above-mentioned measurement thyristor, it is preferred that further include：AD conversion unit and display unit, the modulus
Input terminal connection second resistance (R2) of converting unit and the second main electrode of the thyristor (T2), the AD conversion unit
Output end connect the display unit.
One of present invention measures the device of thyristor, the circuit comprising as above any described measurement thyristor and
Socket, the socket are used to for being inserted into the socket tested thyristor and measure.
One of present invention measures the multimeter of thyristor, the circuit comprising as above any measurement thyristor.
The method that one of present invention measures thyristor, including：First analog switch (S1) obtains high level or low electricity
It puts down and exports and give the control electrode of thyristor (G), the 4th analog switch (S4) obtains high level or low level and exports to the crystalline substance
The second main electrode (T2) of brake tube, the first main electrode (T1) ground connection of the thyristor；
Judge the thyristor whether forward conduction or reverse-conducting；When the thyristor forward conduction or reverse-conducting,
Then determine that the turn on thyristors is normal；Otherwise the thyristor is abnormal.
The method of above-mentioned measurement thyristor, it is preferred that the method further includes：First analog switch (S1) with
And third analog switch (S3) obtains zero level and exports to the control electrode (G) of thyristor, the 4th analog switch (S4) is obtained
It takes high level or low level and exports to the second main electrode (T2) of the thyristor；
Judge the whether positive shutdown of the thyristor or reversed shutdown；When thyristor forward direction shutdown or reversed pass
It is disconnected, it is determined that the thyristor shutdown is normal；Otherwise the thyristor is abnormal.
The method of above-mentioned measurement thyristor, it is preferred that the method further includes：First analog switch (S1) with
And third analog switch (S3) obtains zero level and exports to the control electrode (G) of thyristor, the second analog switch (S2) and institute
The 4th analog switch (S4) is stated to obtain zero level and export to the second main electrode (T2) of the thyristor；The thyristor zero passage
Shutdown.
One of present invention measures circuit, device, multimeter and the method for thyristor, and may be implemented only need to be by tested crystalline substance
Brake tube is inserted into the corresponding interface of multimeter, so that it may directly judge brilliant lock quality and conducting resistance, while experienced person
Can also be directly from reading come situations such as judging pin arrangements, survey of such mode for unidirectional thyristor and bidirectional thyristor
It tries all effective.
Detailed description of the invention
Fig. 1 is a kind of electrical block diagram for measuring thyristor in the embodiment of the present invention；
Fig. 2 is a kind of method flow diagram for measuring thyristor in the embodiment of the present invention.
Specific embodiment
The present invention is described in detail below with reference to the accompanying drawings and embodiments.
A kind of circuit of measurement thyristor described in the embodiment of the present invention, including：At least two analog switches and processing
Unit, two analog switches are separately connected the processing unit, wherein the control of the first analog switch (S1) connection thyristor
Pole (G) processed, the 4th analog switch (S4) connect the second main electrode (T2) of the thyristor, the first main electrode of the thyristor
(T1) it is grounded.Specifically, two analog switches are single-pole double-throw switch (SPDT), the first analog switch (S1) and the 4th analog switch
(S4) input terminal is all connected with the output end of processing unit, exports from the processing unit to first analog switch (S1) high
Level or low level, the control electrode (G) of the stationary contact connection thyristor of the first analog switch (S1), two movable contact difference
Connect high level+VDD and low level-VDD；Second main electrode of the stationary contact connection thyristor of the 4th analog switch (S4)
(T2), two movable contact is separately connected high level+VDD and low level-VDD.When test thyristor forward conduction or
When reverse-conducting, processing unit exports high level+VDD or low level-VDD；Wherein, the first analog switch (S1) and the 4th
Analog switch (S4) by the high level+VDD of acquisition or low level-VDD be respectively loaded on thyristor control electrode (G) and
Second main electrode (T2), the control electrode (G) of thyristor and the level of the second main electrode (T2) are equal at this time, and the first main electrode
(T1) it is grounded, therefore when thyristor forward conduction or reverse-conducting, corresponding conducting voltage can be measured on thyristor,
Otherwise the thyristor is abnormal.
The circuit of measurement thyristor in the embodiment of the present invention, preferably, further including：Third analog switch (S3), it is described
First analog switch (S1) connects third analog switch (S3), the control electrode of third analog switch (S3) the connection thyristor
(G).Specifically, third analog switch (S3) is also single-pole double-throw switch (SPDT), input terminal connects the output end of processing unit, quiet
Contact connects the control electrode (G) of thyristor, two movable contact is separately connected the stationary contact of the first analog switch (S1) and connects
Ground；When testing thyristor forward direction shutdown or reversed shutdown, processing unit is to the first analog switch (S1) and third
Analog switch (S3) exports zero level, and the stationary contact of third analog switch (S3) is promoted to connect the movable contact that voltage is 0V, so that
Voltage in the control electrode (G) of thyristor is 0；And the output end of processing unit to the 4th analog switch (S4) output high level+
Perhaps high level+the VDD of acquisition or low level-VDD are loaded onto second to VDD by the 4th analog switch (S4) of low level-VDD
Main electrode (T2) forms pressure drop between the control electrode (G) and the second main electrode (T2) of thyristor at this time.At this point, working as thyristor just
To when shutdown or reversed shutdown, corresponding open-circuit voltage can be measured on thyristor, otherwise the thyristor is abnormal.
In the another preferred embodiment of the present invention, as shown in Figure 1, including：At least four analog switches and processing unit
10 (MCU), four analog switches are separately connected the processing unit 10, wherein the first analog switch (S1) connects third mould
Quasi- switch (S3), the control electrode (G) of third analog switch (S3) the connection thyristor, the 4th analog switch (S4) connection second
Analog switch (S2), second analog switch (S2) connect the second main electrode (T2) of tested thyristor, the thyristor
First main electrode (T1) ground connection.Specifically, four analog switches are single-pole double-throw switch (SPDT)s, the pin 1 and 3 of each switch is
The stationary contact of this switch, pin 2 is movable contact.Processing unit 10 has 4 output ports PA1, PA2, PA3 and PA4,
In, the input terminal CON of the first analog switch (S1) is directly connected to PA1, and the input terminal CON of third analog switch (S3) is directly connected to
PA2, the input terminal CON of the second analog switch (S2) are directly connected to PA3, and the input terminal CON of the 4th analog switch (S4) directly connects
Meet PA4.In embodiments of the present invention, the input to four analog switches respectively of different output ports is passed through from processing unit 10
End exports corresponding voltage value, to control the movement of analog switch.On the other hand, the stationary contact of two of them analog switch is equal
It is connected to tested thyristor.Specifically, the control electrode (G) of the stationary contact connection thyristor of the third analog switch (S3), institute
The stationary contact for stating the second analog switch (S2) connects the second main electrode (T2) of tested thyristor, the main electricity of the first of the thyristor
Pole (T1) ground connection, three pins of such thyristor can carry out subsequent measurement after being connected in embodiments of the present invention.
In preferred embodiment, in order to test the forward conduction of thyristor Q1, four output ports of processing unit 10
PA1, PA2, PA3 and PA4 export high level+VDD；Wherein, PA3 and PA4 control respectively the second analog switch (S2) with
And the 4th analog switch (S4) output high level+VDD and be loaded onto the control electrode (G) of Q1；Output end through the processing unit again
Mouthful PA1 and PA2 also exports high level+VDD and is loaded onto the second main electrode (T2) of Q1, at this time the control electrode (G) of Q1 and
The level of second main electrode (T2) is equal, and the first main electrode (T1) is grounded, therefore when Q1 forward conduction, can survey on Q1
Conducting voltage is obtained, may determine that it is unidirectional thyristor or exception if the non-forward conduction of Q1.
Then, when Q1 is not turned on, in order to determine whether Q1 is unidirectional thyristor, four output ports of processing unit 10
PA1, PA2, PA3 and PA4 export low level-VDD；Wherein, PA3 and PA4 control respectively the second analog switch (S2) with
And the 4th analog switch (S4) output low level-VDD and be loaded onto the control electrode (G) of Q1；Output end through the processing unit again
Mouthful PA1 and PA2 also exports low level-VDD and is loaded onto the second main electrode (T2) of Q1, at this time the control electrode (G) of Q1 and
The level of second main electrode (T2) is equal, and the first main electrode (T1) is grounded, therefore when Q1 reverse-conducting, can survey on Q1
Conducting voltage is obtained, may determine that it is also not reverse-conducting if Q1 is not turned on still, Q1 may be problematic, such as not connect
It connects, damage or short circuit.
After judging the thyristor Q1 for forward conduction or reverse-conducting, can then judge whether it being capable of zero passage
Shutdown.Specifically, four output ports PA1, PA2, PA3 and PA4 of processing unit 10 export zero level, at this point, Q1
Voltage between control electrode (G), the second main electrode (T2) and the first main electrode (T1) is equal and is zero, and Q1 zero passage is closed at this time
It is disconnected normal.
The test for then also needing to carry out positive shutdown for the thyristor of forward conduction, to the thyristor of reverse-conducting into
The test that row reversely turns off.Specifically, for the thyristor Q1 of forward conduction, the output port PA1 and PA2 of processing unit 10
Zero level is exported, control electrode (G) the output OV of Q1 is controlled, and the output port PA3 and PA4 of processing unit 10 control the respectively
Two analog switches (S2) and the 4th analog switch (S4) output high level+VDD and the control electrode (G) for being loaded onto Q1, at this time just
The open-circuit voltage of normally-off thyristor is+VDD.And the processing mode reversely turned off is：The output port PA1 of processing unit 10
And PA2 exports zero level, controls control electrode (G) the output 0V of Q1, and the output port PA3 and PA4 of processing unit 10 divide
The second analog switch (S2) and the 4th analog switch (S4) output low level-VDD and the control electrode for being loaded onto Q1 are not controlled
(G), the open-circuit voltage of the thyristor of normal turn-off is-VDD at this time.
Above can the measurement thyristor through the embodiment of the present invention circuit to unidirectional thyristor and two-way
Thyristor is tested and is distinguished, the circuit can it is fully automated measurement thyristor performance indicator, additionally it is possible to by measuring it
On voltage value obtain thyristor state, for analyze thyristor quality provide conveniently mode, solve existing
Unidirectional thyristor and bidirectional thyristor need the problem of being tested using different measurement methods in technology, and solve
Test process is complicated in the prior art, the inconvenience of labor intensive cost.
In above-mentioned specific embodiment, the circuit for measuring thyristor further includes：First resistor (R1) and second resistance
(R2), one end of the first resistor (R1) connects the third analog switch (S3), and the other end connects the thyristor
Control electrode (G), one end of the second resistance (R2) connect second analog switch (S2), the other end connection brilliant lock
The second main electrode (T2) of pipe.Specifically, by taking the forward conduction for testing thyristor Q1 as an example, two output ports of processing unit
PA3 and PA4 is defeated to the input terminal CON of the input terminal CON of the second analog switch (S2) and the 4th analog switch (S4) respectively
High level+VDD out, at this point, what is connect due to the stationary contact 3 of the 4th analog switch (S4) is high level, movable contact 2 and stationary contact
3 connection of point, therefore the movable contact 2 of S4 is connect with the stationary contact 1 of the second analog switch (S2), so that the second analog switch (S2)
Stationary contact 1 is also high level.Due to the input terminal CON also input high level of the second analog switch (S2), the second simulation is opened
The movable contact 2 for closing (S2) is engaged with its stationary contact 1.High level+VDD passes through in the second analog switch (S2) second resistance R2, most
High level+VDD is loaded onto the second main electrode (T2) of Q1 at last；And other two output port PA1 of processing unit 10 with
And PA2 also exports height to the input terminal CON of the input terminal CON of the first analog switch (S1) and third analog switch (S3) respectively
Level+VDD, what is connect due to the stationary contact 1 of the first analog switch (S1) is high level, and movable contact 2 is connect with stationary contact 1,
Therefore movable contact 2 is directly by high level output to the stationary contact 1 of third analog switch (S3), defeated due to three analog switches (S3)
Outlet is also to receive high level, therefore its movable contact 2 is directly connect with stationary contact 1, and high level+VDD is opened by third simulation
It closes in (S3) first resistor R1, high level+VDD is finally loaded onto the control electrode (G) of Q1.
When testing the zero-crossing switching of thyristor, four output ports PA1, PA2, PA3 and PA4 of processing unit 10 are equal
Zero level is exported, the input terminal CON of the first analog switch (S1) is zero level at this time, therefore no-voltage on its movable contact 2, and by
It is zero level in the input terminal CON of third analog switch (S3), and its stationary contact 3 also connects 0V voltage, therefore third analog switch
(S3) movable contact 2 is connect with stationary contact 3, makes voltage zero in the control electrode (G) of Q1.On the other hand, the 4th analog switch
(S4) input terminal CON is zero level, therefore no-voltage on its movable contact 2, and due to the input terminal of the second analog switch (S2)
CON is zero level, and its stationary contact 3 also connects 0V voltage, therefore the second analog switch (S2) movable contact 2 is connect with stationary contact 3, is made
Voltage in the second main electrode (T2) of Q1 is also zero, so far if the control electrode (G) of Q1, the second main electrode (T2) and first
Voltage between main electrode (T1) is equal and is zero, and Q1 zero-crossing switching is normal at this time.
A kind of circuit of measurement thyristor described in specific embodiment of the present invention, preferably, as shown in Figure 1, further including：
AD conversion unit 11 and display unit 12, input terminal connection second resistance (R2) of the AD conversion unit 11 and institute
The second main electrode of thyristor (T2) is stated, the output end of the AD conversion unit 11 connects the display unit 12.Specifically, mould
Number converting unit 11 obtains the voltage ADP of tested thyristor Q1, and is shown after being turned by modulus by display unit, can save survey
The step of amount, therefore specific embodiment provides more convenient mode to realize the present invention.
The embodiment of the present invention also provides a kind of device for measuring thyristor, comprising as above any one is as described in the examples
The circuit and socket of thyristor are measured, the socket is used to for being inserted into the socket tested thyristor and measure.Specifically
, after a kind of device of the foregoing circuit integration packaging at measurement thyristor, then it is provided with socket on the apparatus, the socket
In three holes, two of them hole is separately connected the movable contact 2 of the second analog switch and third analog switch, another hole connects
Ground, thyristor tested in this way, which can be inserted directly into the socket, to be measured.
The embodiment of the invention also includes a kind of multimeters for measuring thyristor, comprising described in any one embodiment as above
Measurement thyristor circuit.Preferably, by the circuit integration of above-mentioned measurement thyristor into multimeter, so that multimeter can
It is directly realized by the function of measurement thyristor, without being taken multiple measurements with test pencil, not only facilitates but also saves time cost.
The embodiment of the present invention also provides a kind of method for measuring thyristor, as shown in Fig. 2, including：
Step 201, the first analog switch (S1) obtains high level or low level and exports to the control electrode (G) of thyristor,
4th analog switch (S4) obtains high level or low level and exports to the second main electrode (T2) of the thyristor, the crystalline substance lock
The first main electrode (T1) of pipe is grounded；Specifically, two analog switches are single-pole double-throw switch (SPDT)s, the first analog switch (S1) with
And the 4th the input terminal of analog switch (S4) be all connected with the output end of processing unit, from the processing unit to first simulation
(S1) output high level or level are switched, the stationary contact of the first analog switch (S1) connects the control electrode (G) of thyristor,
Two movable contacts are separately connected high level+VDD and low level-VDD；The stationary contact of 4th analog switch (S4) connects thyristor
The second main electrode (T2), two movable contact is separately connected high level+VDD and low level-VDD.When test thyristor
Forward conduction perhaps reverse-conducting when processing unit export high level+VDD or low level-VDD；Wherein, the first analog switch
(S1) and the high level+VDD of acquisition or low level-VDD are respectively loaded on thyristor by the 4th analog switch (S4)
Control electrode (G) and the second main electrode (T2), at this time the level phase of the control electrode (G) and the second main electrode (T2) of thyristor
Deng, and the first main electrode (T1) is grounded.
Step 202, judge the thyristor whether forward conduction or reverse-conducting；When the thyristor forward conduction or instead
To conducting, it is normal to enter step 203 determination turn on thyristors；Otherwise, 204 are entered step, judges that the thyristor is different
Often.Specifically, the thyristor forward conduction or reverse-conducting are just when getting conducting voltage at the both ends of the thyristor
Often, otherwise judge that the thyristor for unidirectional thyristor or may damage.
A kind of method of measurement thyristor described in the embodiment of the present invention, preferably, the method further includes：It is described
First analog switch (S1) and third analog switch (S3) obtain zero level and export to the control electrode (G) of thyristor, described
4th analog switch (S4) obtains high level or low level and exports to the second main electrode (T2) of the thyristor；Specifically,
Third analog switch (S3) is also single-pole double-throw switch (SPDT), and input terminal connects the output end of processing unit, and stationary contact connection is brilliant
The control electrode (G) of brake tube, two movable contact are separately connected stationary contact and the ground connection of the first analog switch (S1)；When test institute
When stating the shutdown of thyristor forward direction or reversed shutdown, processing unit is to the first analog switch (S1) and third analog switch (S3)
Zero level is exported, promotes the stationary contact of third analog switch (S3) to connect the movable contact that voltage is 0V, so that the control of thyristor
Voltage on pole (G) is 0；And the output end of processing unit exports high level+VDD or low electricity to the 4th analog switch (S4)
High level+the VDD of acquisition or low level-VDD are loaded onto the second main electrode (T2) by flat-VDD, the 4th analog switch (S4),
Pressure drop is formed between the control electrode (G) and the second main electrode (T2) of thyristor at this time.
Judge the whether positive shutdown of the thyristor or reversed shutdown；When thyristor forward direction shutdown or reversed pass
It is disconnected, it is determined that the thyristor shutdown is normal；Otherwise the thyristor is abnormal.Specifically, being surveyed when at the both ends of the thyristor
When obtaining open-circuit voltage, it is determined that the thyristor shutdown is normal；Otherwise, the thyristor may damage.
To sum up, circuit, device, multimeter and the method for one of embodiment of the present invention measurement thyristor, may be implemented
Tested thyristor need to be only inserted into the corresponding interface of multimeter, so that it may directly judge thyristor quality and conducting resistance, together
When experienced person can also directly from reading come situations such as judging pin arrangements, such mode for unidirectional thyristor and
The test of bidirectional thyristor is all effective.
The present invention is not limited to above-mentioned preferred forms, anyone can show that other are various under the inspiration of the present invention
The product of form, however, make any variation in its shape or structure, it is all that there is skill identical or similar to the present application
Art scheme, is within the scope of the present invention.
Claims (10)
1. a kind of circuit for measuring thyristor, which is characterized in that including：At least two analog switches and processing unit, two
The analog switch is separately connected the processing unit, wherein the control electrode (G) of the first analog switch (S1) connection thyristor, the
Four analog switches (S4) connect the second main electrode (T2) of the thyristor, the first main electrode (T1) ground connection of the thyristor.
2. a kind of circuit for measuring thyristor according to claim 1, which is characterized in that further include：Third analog switch
(S3), the first analog switch (S1) connection third analog switch (S3), the third analog switch (S3) connect thyristor
Control electrode (G).
3. a kind of circuit for measuring thyristor according to claim 2, which is characterized in that further include：Second analog switch
(S4), the 4th analog switch (S4) connects second analog switch (S2), and second analog switch (S2) connects institute
State the second main electrode (T2) of thyristor.
4. a kind of circuit for measuring thyristor according to claim 3, which is characterized in that further include：First resistor (R1)
And second resistance (R2), one end of the first resistor (R1) connect the third analog switch (S3), other end connection
One end of the control electrode (G) of the thyristor, the second resistance (R2) connects second analog switch (S2), the other end
Connect the second main electrode (T2) of the thyristor.
5. a kind of circuit for measuring thyristor according to claim 4, which is characterized in that further include：AD conversion unit
And display unit, input terminal connection second resistance (R2) of the AD conversion unit and the second main electrode of the thyristor
(T2), the output end of the AD conversion unit connects the display unit.
6. a kind of device for measuring thyristor, which is characterized in that include the measurement crystalline substance lock as described in claim 1-5 any one
The circuit and socket of pipe, the socket are used to for being inserted into the socket tested thyristor and measure.
7. a kind of multimeter for measuring thyristor, which is characterized in that brilliant comprising the measurement as described in claim 1-5 any one
The circuit of brake tube.
8. a kind of method for measuring thyristor, which is characterized in that including：First analog switch (S1) obtains high level or low level
And export to the control electrode (G) of thyristor, the 4th analog switch (S4) obtains high level or low level and exports to the brilliant lock
The second main electrode (T2) of pipe, the first main electrode (T1) ground connection of the thyristor；
Judge the thyristor whether forward conduction or reverse-conducting；When the thyristor forward conduction or reverse-conducting, then really
The fixed turn on thyristors is normal；Otherwise the thyristor is abnormal.
9. a kind of method for measuring thyristor according to claim 8, which is characterized in that the method further includes：
First analog switch (S1) and third analog switch (S3) obtain zero level and export to the control electrode (G) of thyristor,
4th analog switch (S4) obtains high level or low level and exports to the second main electrode (T2) of the thyristor；
Judge the whether positive shutdown of the thyristor or reversed shutdown；When thyristor forward direction shutdown or reversed shutdown,
Then determine that the thyristor shutdown is normal；Otherwise the thyristor is abnormal.
10. a kind of method of measurement thyristor according to claim 8 or claim 9, which is characterized in that the method is further wrapped
It includes：First analog switch (S1) and third analog switch (S3) obtain zero level and export to the control electrode of thyristor
(G), the second analog switch (S2) and the 4th analog switch (S4) obtain zero level and export to the of the thyristor
Two main electrodes (T2)；The thyristor zero-crossing switching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810613799.XA CN108828423A (en) | 2018-06-14 | 2018-06-14 | A kind of circuit, device, multimeter and method measuring thyristor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810613799.XA CN108828423A (en) | 2018-06-14 | 2018-06-14 | A kind of circuit, device, multimeter and method measuring thyristor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108828423A true CN108828423A (en) | 2018-11-16 |
Family
ID=64141806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810613799.XA Pending CN108828423A (en) | 2018-06-14 | 2018-06-14 | A kind of circuit, device, multimeter and method measuring thyristor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108828423A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58189566A (en) * | 1982-04-28 | 1983-11-05 | Nec Home Electronics Ltd | Characteristic measuring method of thyristor |
| KR20010037583A (en) * | 1999-10-18 | 2001-05-15 | 박용종 | Device of judging leakage voltage and gate control function of thyrister |
| CN203117379U (en) * | 2013-02-25 | 2013-08-07 | 翁策高 | Silicon controlled rectifier (SCR) detection device |
| KR101373165B1 (en) * | 2012-11-30 | 2014-03-11 | 주식회사 포스코 | Apparatus and method for detecting failure of thyristor |
| CN104297661A (en) * | 2014-10-31 | 2015-01-21 | 天津市汇和电气设备有限公司 | Bidirectional thyristor electrode measuring device |
| CN104793119A (en) * | 2015-02-12 | 2015-07-22 | 皖西学院 | Extending device with common multimeter for testing controlled silicone |
| CN105277866A (en) * | 2015-09-11 | 2016-01-27 | 中冶宝钢技术服务有限公司 | Thyristor detector and thyristor detection method of detector |
| CN208283510U (en) * | 2018-06-14 | 2018-12-25 | 优利德科技(中国)股份有限公司 | A kind of circuit, device and multimeter measuring thyristor |
-
2018
- 2018-06-14 CN CN201810613799.XA patent/CN108828423A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58189566A (en) * | 1982-04-28 | 1983-11-05 | Nec Home Electronics Ltd | Characteristic measuring method of thyristor |
| KR20010037583A (en) * | 1999-10-18 | 2001-05-15 | 박용종 | Device of judging leakage voltage and gate control function of thyrister |
| KR101373165B1 (en) * | 2012-11-30 | 2014-03-11 | 주식회사 포스코 | Apparatus and method for detecting failure of thyristor |
| CN203117379U (en) * | 2013-02-25 | 2013-08-07 | 翁策高 | Silicon controlled rectifier (SCR) detection device |
| CN104297661A (en) * | 2014-10-31 | 2015-01-21 | 天津市汇和电气设备有限公司 | Bidirectional thyristor electrode measuring device |
| CN104793119A (en) * | 2015-02-12 | 2015-07-22 | 皖西学院 | Extending device with common multimeter for testing controlled silicone |
| CN105277866A (en) * | 2015-09-11 | 2016-01-27 | 中冶宝钢技术服务有限公司 | Thyristor detector and thyristor detection method of detector |
| CN208283510U (en) * | 2018-06-14 | 2018-12-25 | 优利德科技(中国)股份有限公司 | A kind of circuit, device and multimeter measuring thyristor |
Non-Patent Citations (2)
| Title |
|---|
| 苏成富: "用万用表测试小功率晶闸管", 电工技术杂志, no. 06, pages 34 - 35 * |
| 郑能冲: "可关断晶闸管(GTO)特性的简易测试", 电世界, no. 05, pages 30 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104459400B (en) | Detection circuit and detection method for self-tolerant touch screen | |
| CN206292382U (en) | A kind of resistance meter calibrating installation | |
| JP3262819B2 (en) | Impedance measuring device having contact determination circuit and contact determination method thereof | |
| CN103888885B (en) | Miniature microphone capacitance test method | |
| CN111751622A (en) | Method and system for measuring circuit breaker loop resistance | |
| CN208283510U (en) | A kind of circuit, device and multimeter measuring thyristor | |
| CN106443549B (en) | A kind of analog AC resistance device for calibration battery internal resistance test device | |
| CN108957210A (en) | Electrolytic capacitor polarity detection circuit and detection device | |
| US10031174B2 (en) | Apparatus and method for insulation testing of an electrical supply network | |
| CN108828423A (en) | A kind of circuit, device, multimeter and method measuring thyristor | |
| CN110470976A (en) | A kind of sensor parameters tester and test method | |
| CN207380122U (en) | MOSFET hourglass source electrode resistance test circuits | |
| CN211402545U (en) | Experimental device for measuring resistance by using oscilloscope | |
| CN212391534U (en) | Current detection circuit | |
| CN106680655A (en) | Device and method for detecting direct-current relay coil parallel diodes | |
| CN107991543A (en) | The gate charge measurement circuit and its measuring method of insulated gate bipolar transistor | |
| CN109061428B (en) | The detection method of thyristor | |
| CN208140911U (en) | A kind of multi-functional safety comprehensive intelligence testing instrument calibrating installation | |
| CN103713273B (en) | A kind of monitor for arrester leakage current trouble-shooter | |
| CN203422442U (en) | Cable detector | |
| CN218629989U (en) | Circuit and device for measuring two-terminal grounding resistance by using natural field | |
| CN219285284U (en) | Measuring device and system | |
| KR20120033198A (en) | Apparatus and method for diagnosing superconductor | |
| CN217846449U (en) | PMU measuring unit based on Kelvin connection | |
| CN207380210U (en) | Breaker leakage current detection circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |