CN2343593Y - Dynamic aging measurer for linear circuit - Google Patents
Dynamic aging measurer for linear circuit Download PDFInfo
- Publication number
- CN2343593Y CN2343593Y CN 98208076 CN98208076U CN2343593Y CN 2343593 Y CN2343593 Y CN 2343593Y CN 98208076 CN98208076 CN 98208076 CN 98208076 U CN98208076 U CN 98208076U CN 2343593 Y CN2343593 Y CN 2343593Y
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- linear circuit
- ageing
- circuit
- linear
- unit
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- Testing Of Individual Semiconductor Devices (AREA)
- Tests Of Electronic Circuits (AREA)
Abstract
The utility model relates to a dynamic aging measurer for linear circuits, comprising a machine cabinet, a drying box, a basic computer and outer devices. The utility model is characterized in that the utility model is also comprises a set a universal aging units, a set of control units, a multipath isolating stabilized D. C. source and the measurer for special linear circuits; when the linear circuit is carried out with rated dynamic power aging, the on-line parametric measurement can be carried out at the same time; the functional failure and the parametric failure of the linear circuit can be identified accurately; the early failure of the linear circuit can be identified.
Description
The design belongs to the metrology and measurement specialized equipment in the commercial production, specially refers to the very little equipment that carries out dynamic ageing and test in linear circuit.
Linear circuit manufacturer, use producer and authority's check certification authority all are starved of dependence and accurately check efficiently and testing equipment, with the function of differentiating, confirm the linear circuit of being produced and the state of parameter, here the linear circuit of indication, comprise operational amplifier and voltage comparator, reliability theory according to linear circuit, the inefficacy of linear circuit is usually expressed as functional inefficacy and parameter inefficacy, for functional inefficacy, can be differentiated by conventionally test; For the parameter inefficacy, generally need be in nominal load work, and under the temperature conditions of volume, its parameter is monitored, could differentiate.Up to now, also do not have the dynamic ageing testing apparatus of linear circuit to make, most producers are after linear circuit is carried out the static power ageing, carry out the conventional parameter test again, and its functional inefficacy and parameter inefficacy are differentiated.Both time-consuming, the effort of this method, the state of the linear circuit under the against regulation requirement of discriminating temperature characterisitic that again can't be definite.The equipment of this " static state " work can not meet the demands, and for this reason, industry manufacturer, user very need design the equipment that carries out dynamic ageing and test for linear circuit.
After the programming of this problem, once at home, outer update search 11 kinds of 22 databases (external 15, domestic 7), therefrom retrieve more than 100 piece, select 13 pieces in the document close again with this problem purpose, all less than the identical content of design proposal of drawing up with this problem, present design has novelty for this reason.
The purpose of this utility model is when carrying out specified dynamic power ageing for the linear circuit that industrialization is produced, to carry out the on-line parameter test, and develop this easily, structure is the dynamic ageing testing apparatus of one.
The utility model relies on following technical proposals to realize, the dynamic ageing testing apparatus of linear circuit, comprise main, pay one group of general ageing unit that machine frame, are installed in baking oven in the mainframe, are plugged on oven interior, it is the carrier of dynamic rate ageing of linear circuit and on-line parameter test; Coupled main frame and external unit, uninterrupted power source UPS and alternating current steady voltage plug ACWP, it is characterized in that, also comprise the one group of control module that is connected by interconnecting module with the ageing unit, it is the passage of linear circuit dynamic power ageing and on-line parameter test; Be fixed in addition with baking oven rack arranged side by side in multichannel isolated DC stabilized voltage supply, its reduces power supply and crosstalks, and has increased stability of power supply; And special-purpose linear circuit tester device.
The realization of present design, in commercial production, embody tangible progress, also crucial and important parameter are carried out on-line testing in the time of to the specified dynamic rate ageing of linear circuit, relative prior art equipment, can reduce half the time and the workload of half, main is functional inefficacy and the parameter inefficacy that can differentiate linear circuit exactly, simultaneously, by analysis, also can identify the initial failure of linear circuit to parameter discrete.This equipment of dependence, can also test the offset voltage temperature coefficient of linear circuit, the offset current temperature coefficient, the temperature coefficient of bias current, the temperature coefficient of open-loop voltage gain and touch the temperature coefficient of rejection ratio altogether, statistics, analysis and assessment by computing machine, can be used for the type selecting of linear circuit and produce quality control in batches, and with its design data as electronic product.
Further specify embodiment below in conjunction with accompanying drawing:
Description of drawings:
Fig. 1 is the dynamic ageing testing apparatus of linear circuit overall appearance figure;
Fig. 2 is the outfit of equipment connection diagram;
Fig. 3 is an equipment essential structure block scheme;
Fig. 4 is general ageing element circuit synoptic diagram;
Fig. 5 is a general controls element circuit synoptic diagram;
Fig. 6 is that multichannel stopping direct current stabilized voltage supply connects block diagram;
Fig. 7 is the electric theory diagram of dedicated line tester.
Wherein, mainframe 1 and the mutual rack integral body that is electrically connected of paying the placement arranged side by side of rack 2 formations, 3 is baking oven, select existing procucts for use, the oven interior front end is inserted with a general ageing unit 4 that assembles linear circuit, be connected to the general controls unit 6 that is inserted in other end baking oven outside by modular converter 5, the top of paying rack 2 is installed with multichannel stopping direct current stabilized voltage supply 7, its below is connecting main frame and external unit 8 thereof, it comprises the computer interface circuit, external unit comprises CRT monitor, printer and uninterrupted power source UPS, it is to select existing Philips company product for use, the rack of main frame below partly is installed with the special-purpose linear circuit tester 9 of particular design, and the alternating current steady voltage plug ACWP that install the cabinet bottom is to select existing on the market sell goods for use.
Fig. 4 shows the circuit diagram of general ageing unit 4, for taking into account various types of devices, for example for single, double or four and operational amplifier or voltage comparator, its positive, negative-phase input and output terminal and positive and negative circuit end are stacked mutually, test shows that various linear circuits all can be in these general ageing unit 4 enterprising action attitude power ageings and on-line parameter test.
Among the power supply reason figure of the general controls unit 5 that Fig. 5 is indicated, selected the relay of good insulation preformance for use, high-power Darlington driver, and designed the variable audio signal source of Frequency and Amplitude.
The indicated multichannel stopping direct current stabilized voltage supply of Fig. 5 is linear circuit dynamic power ageing and the shared power supply of on-line parameter test; this is in order to reduce crosstalking between the power supply; in order to protect linear circuit, increased the indication of overvoltage protection and overvoltage audible and visual alarm circuit and state thereof.
The composition frame chart of the special-purpose linear circuit tester that Fig. 7 is indicated, different with conventional linear circuit tester, when the device of test different types, conventional linear circuit tester need be changed test module, and the design does not need to change, not needing increases some manually-operated in the test process, in addition, increased the communication interface part with main frame.
Entire equipment is combined by each part mentioned above, and each several part carries out work under the control of computer system, carry out the on-line testing of parameters.
Claims (5)
1, the dynamic ageing testing apparatus of a kind of linear circuit, comprise the master, pay machine frame [1], [2], one group of general ageing unit [4] that is installed in baking oven [3] in the mainframe, is plugged on oven interior, coupled main frame and external unit [3], uninterrupted power source UPS and alternating current steady voltage plug ACWP, it is characterized in that, also comprise the one group of control module [6] that is connected by interconnecting module [5] with the ageing unit, be fixed in addition with baking oven rack arranged side by side in multichannel isolated DC stabilized voltage supply [7], and special-purpose linear circuit tester device [9].
2, according to the described equipment of claim 1, it is characterized in that, general ageing unit [4] for single, double or four and positive, negative-phase input and output terminal and the positive and negative circuit end of operational amplifier and voltage comparator stacked mutually, various linear circuits all can be in this general ageing unit [4] enterprising action attitude power ageing and on-line parameter test.
According to the described equipment of claim 1, it is characterized in that 3, said general controls unit [6] has been selected the relay of good insulation preformance for use, high-power Darlington driver, and designed the variable audio signal source of Frequency and Amplitude.
4, according to the described equipment of claim 1, it is characterized in that, in the circuit of said multichannel stopping direct current stabilized voltage supply [7], increased the indication of overvoltage protection and overvoltage audible and visual alarm circuit and state thereof.
According to the described equipment of claim 1, it is characterized in that 5, the linear circuit tester of said special use [9] has increased the communication interface part with main frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98208076 CN2343593Y (en) | 1998-09-17 | 1998-09-17 | Dynamic aging measurer for linear circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98208076 CN2343593Y (en) | 1998-09-17 | 1998-09-17 | Dynamic aging measurer for linear circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2343593Y true CN2343593Y (en) | 1999-10-13 |
Family
ID=33963863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98208076 Expired - Fee Related CN2343593Y (en) | 1998-09-17 | 1998-09-17 | Dynamic aging measurer for linear circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2343593Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103064001A (en) * | 2011-10-22 | 2013-04-24 | 海信（山东）空调有限公司 | Detecting method and detecting device of driving board of inverter compressor |
| CN103713265A (en) * | 2013-12-26 | 2014-04-09 | 北京航天测控技术有限公司 | Burn-in detection system |
| CN107356859A (en) * | 2017-06-09 | 2017-11-17 | 上海航空电器有限公司 | MCVF multichannel voice frequency circuit BIT test circuits and method |
-
1998
- 1998-09-17 CN CN 98208076 patent/CN2343593Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103064001A (en) * | 2011-10-22 | 2013-04-24 | 海信（山东）空调有限公司 | Detecting method and detecting device of driving board of inverter compressor |
| CN103064001B (en) * | 2011-10-22 | 2016-03-23 | 海信（山东）空调有限公司 | The detection method of variable-frequency compressor driving plate and pick-up unit thereof |
| CN103713265A (en) * | 2013-12-26 | 2014-04-09 | 北京航天测控技术有限公司 | Burn-in detection system |
| CN103713265B (en) * | 2013-12-26 | 2016-11-09 | 北京航天测控技术有限公司 | A kind of burn-in detection system |
| CN107356859A (en) * | 2017-06-09 | 2017-11-17 | 上海航空电器有限公司 | MCVF multichannel voice frequency circuit BIT test circuits and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |