CN202471862U - Circuit structure for electrostatic discharge generator - Google Patents
Circuit structure for electrostatic discharge generator Download PDFInfo
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- CN202471862U CN202471862U CN2012200580380U CN201220058038U CN202471862U CN 202471862 U CN202471862 U CN 202471862U CN 2012200580380 U CN2012200580380 U CN 2012200580380U CN 201220058038 U CN201220058038 U CN 201220058038U CN 202471862 U CN202471862 U CN 202471862U
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- discharge
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- switch
- electrostatic
- resistance
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Abstract
A circuit structure for an electrostatic discharge generator comprises a discharge electrode and discharging loop connection terminals, wherein the discharge electrode is connected with one end of a first switch controlling making and breaking of discharge, the other end of the first switch is connected with one end of a discharge resist or, the other end of the discharge resistor is connected with one end of a charge resistor, the other end of the charge resistor is connected with a second switch controlling making and breaking of charging, a direct current high voltage power supply is mounted between the second switch and the discharging loop connection terminals, and a energy-storage capacitor is placed between a connection point of the discharge resistor and the charge resistor and a connection point of the direct current high voltage power supply and the discharging loop connection terminals. The circuit structure for the electrostatic discharge generator can raise the required electrostatic voltage of different sizes for each level, control time of electrostatic functioning and frequency of electrostatic beating accurately, and satisfy requirements of multiple tests.
Description
Technical field
The utility model belongs to electromagnetic compatibility Anti-Jamming Technique field, relates in particular to a kind of circuit structure that is used for electro-static discharging generator.
Background technology
Itself can not produce electrostatic hazard to electronic equipment charged insulator, yet static discharge will produce very serious threat to the operate as normal of electronic equipment.Positive charge or negative charge in the generation of static electricity process build up, thereby produce potential difference (PD) with surrounding environment, and the transfer that electric charge is created in via discharge path between the different potentials is static discharge, is called for short ESD.The generation of static discharge needs three conditions:
1, the accumulation of electrostatic charge on insulator;
2, electrostatic charge shifts to conductor through contact or induction;
3, the conductor that is full of electrostatic charge produces static discharge near metal object;
The energy of static discharge can be coupled to electronic circuit through dual mode, a kind ofly is conduction coupling, and promptly the static discharge current sensitive circuit of directly flowing through threatens its operate as normal; Another kind of is that radiation is coupled, and promptly the static discharge energy is through the operate as normal of external electromagnetic field coupling generation high pressure, big electric current threat electronic circuit, and the external electromagnetic field coupling comprises capacitive coupling again and responds to coupling.
Static discharge mainly is divided into three types to the harm of power electronic system:
1, hardware harm;
2, software harm;
3, instantaneous interference;
Wherein hardware harm will directly damage system hardware, and software harm influences the running software of system but do not cause physical damage, and instantaneous interference can not produce mistake, but phenomenon clearly.Therefore it is simple how to design a kind of control, and the low circuit structure that also can satisfy the electro-static discharging generator of multiple test request of cost becomes the direction that those skilled in the art make great efforts.
Summary of the invention
The utility model purpose provides a kind of circuit structure that is used for electro-static discharging generator; This circuit structure is controlled simply, can be improved the needed different big or small electrostatic potentials of each grade, can accurately control static application time and static cycle, satisfies the needs of multiple test request.
For achieving the above object; The technical scheme that the utility model adopts is: a kind of circuit structure that is used for electro-static discharging generator; Comprise: sparking electrode and discharge loop splicing ear; This sparking electrode is connected to first switch that is used to control the discharge break-make; This first switch other end is connected to a discharge resistance one end, and this discharge resistance other end is connected to a charging resistor one end, and the charging resistor other end is connected to and is used for control charging break-make second switch; The DC high voltage power supply is between second switch and discharge loop splicing ear, and a storage capacitor is between the contact of the contact of said discharge resistance and charging resistor and said DC high-voltage power supply and discharge loop splicing ear.
It is following that technique scheme is further improved technical scheme:
In the such scheme, said charging resistor resistance is between 50 ~ 100M Ω, and said discharge resistance resistance is 290 ~ 370 Ω, and said storage capacitor capacitance is 130 ~ 170pF.
Because the technique scheme utilization, the utility model compared with prior art has advantage:
The utility model is used for the circuit structure of electro-static discharging generator; During this circuit structure work; Regulate the output voltage of dc high-voltage source, make dc high-voltage source pass through charging resistor and charge to storage capacitor, treat that voltage on the storage capacitor is charged to specified trial voltage after; Through carrying out contact discharge through discharge resistance, sparking electrode successively; And adopt resistance value and the capacitance combinations matches of optimizing, and the needed different big or small electrostatic potentials of each grade can be improved, static application time and static cycle can be accurately controlled, satisfy the needs of multiple test request; Secondly, the utility model circuit structure is employed in charge circuit and the discharge loop and is provided with switch, thus its control simply reach flexible control, efficiently test carry out esd immunity testing experiment purpose.
Description of drawings
Fig. 1 is the electrical block diagram that the utility model is used for electro-static discharging generator.
In the above accompanying drawing: 1, sparking electrode; 2, discharge loop splicing ear; 3, DC high-voltage power supply.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described:
Embodiment: a kind of circuit structure that is used for electro-static discharging generator comprises: sparking electrode 1 and discharge loop splicing ear 2, this sparking electrode 1 are connected to first K switch 1 that is used to control the discharge break-make, and this first K switch, 1 other end is connected to a discharge resistance R
dOne end, this discharge resistance R
dThe other end is connected to a charging resistor R
cOne end, charging resistor R
cThe other end is connected to and is used for control charging break-make second switch K2, DC high voltage power supply 3 between second switch K2 and discharge loop splicing ear 2, a storage capacitor C
sBe positioned at said discharge resistance R
dWith charging resistor R
cThe contact of contact and said DC high-voltage power supply 3 and discharge loop splicing ear 2 between.
Above-mentioned charging resistor Rc resistance is between 50 ~ 100M Ω, said discharge resistance R
dResistance is 290 ~ 370 Ω, said storage capacitor C
sCapacitance is 130 ~ 170pF.
When adopting the above-mentioned circuit structure that is used for electro-static discharging generator; During this circuit structure work; Regulate the output voltage of dc high-voltage source, make dc high-voltage source pass through charging resistor and charge to storage capacitor, treat that voltage on the storage capacitor is charged to specified trial voltage after; Through carrying out contact discharge through discharge resistance, sparking electrode successively; And adopt resistance value and the capacitance combinations matches of optimizing, and the needed different big or small electrostatic potentials of each grade can be improved, static application time and static cycle can be accurately controlled, satisfy the needs of multiple test request; Secondly, the present embodiment circuit structure is employed in charge circuit and the discharge loop and is provided with switch, thus its control simply reach flexible control, efficiently test carry out esd immunity testing experiment purpose.
The foregoing description only is the technical conceive and the characteristics of explanation the utility model, and its purpose is to let the personage who is familiar with this technology can understand content of the utility model and enforcement according to this, can not limit the protection domain of the utility model with this.All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed within the protection domain of the utility model.
Claims (2)
1. circuit structure that is used for electro-static discharging generator; It is characterized in that: comprising: sparking electrode (1) and discharge loop splicing ear (2); This sparking electrode (1) is connected to first switch (K1) that is used to control the discharge break-make, and this first switch (K1) other end is connected to a discharge resistance (R
d) end, this discharge resistance (R
d) other end is connected to a charging resistor (R
c) end, charging resistor (R
c) other end is connected to and is used for control charging break-make second switch (K2), DC high voltage power supply (3) is positioned between second switch (K2) and the discharge loop splicing ear (2), a storage capacitor (C
s) be positioned at said discharge resistance (R
d) and charging resistor (R
c) the contact of contact and said DC high-voltage power supply (3) and discharge loop splicing ear (2) between.
2. circuit structure according to claim 1 is characterized in that: said charging resistor (Rc) resistance is between 50 ~ 100M Ω, said discharge resistance (R
d) resistance is 290 ~ 370 Ω, said storage capacitor (C
s) capacitance is 130 ~ 170pF.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200580380U CN202471862U (en) | 2012-02-22 | 2012-02-22 | Circuit structure for electrostatic discharge generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200580380U CN202471862U (en) | 2012-02-22 | 2012-02-22 | Circuit structure for electrostatic discharge generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202471862U true CN202471862U (en) | 2012-10-03 |
Family
ID=46920014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200580380U Expired - Lifetime CN202471862U (en) | 2012-02-22 | 2012-02-22 | Circuit structure for electrostatic discharge generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202471862U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103983869A (en) * | 2014-05-08 | 2014-08-13 | 西安交通大学 | Nanosecond-microsecond level adjustable space medium electrostatic discharge simulation source |
| CN105785182A (en) * | 2016-03-18 | 2016-07-20 | 合肥联宝信息技术有限公司 | Static immunity diagnosis device and method |
| CN106018986A (en) * | 2016-07-12 | 2016-10-12 | 中国石油化工股份有限公司 | Charge quantity measuring device |
| CN107515334A (en) * | 2016-06-15 | 2017-12-26 | 上海索莘电子有限公司 | A kind of static discharge high frequency magnetic field interferance generator |
| CN107633793A (en) * | 2017-09-11 | 2018-01-26 | 惠科股份有限公司 | The electrostatic discharge testing system and method for testing of a kind of display panel |
| CN108627714A (en) * | 2017-03-21 | 2018-10-09 | 联合汽车电子有限公司 | The system and method for static discharge analysis |
-
2012
- 2012-02-22 CN CN2012200580380U patent/CN202471862U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103983869A (en) * | 2014-05-08 | 2014-08-13 | 西安交通大学 | Nanosecond-microsecond level adjustable space medium electrostatic discharge simulation source |
| CN103983869B (en) * | 2014-05-08 | 2016-05-25 | 西安交通大学 | A kind of nanosecond-Microsecond grade adjustable space medium electrostatic discharge simulation source |
| CN105785182A (en) * | 2016-03-18 | 2016-07-20 | 合肥联宝信息技术有限公司 | Static immunity diagnosis device and method |
| CN107515334A (en) * | 2016-06-15 | 2017-12-26 | 上海索莘电子有限公司 | A kind of static discharge high frequency magnetic field interferance generator |
| CN106018986A (en) * | 2016-07-12 | 2016-10-12 | 中国石油化工股份有限公司 | Charge quantity measuring device |
| CN108627714A (en) * | 2017-03-21 | 2018-10-09 | 联合汽车电子有限公司 | The system and method for static discharge analysis |
| CN107633793A (en) * | 2017-09-11 | 2018-01-26 | 惠科股份有限公司 | The electrostatic discharge testing system and method for testing of a kind of display panel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121003 |