CN112485625A - Gas discharge tube HV aging sorting circuit capable of effectively reducing energy loss - Google Patents
Gas discharge tube HV aging sorting circuit capable of effectively reducing energy loss Download PDFInfo
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- CN112485625A CN112485625A CN202011416977.3A CN202011416977A CN112485625A CN 112485625 A CN112485625 A CN 112485625A CN 202011416977 A CN202011416977 A CN 202011416977A CN 112485625 A CN112485625 A CN 112485625A
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- discharge tube
- gas discharge
- aging
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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
- G01R31/24—Testing of discharge tubes
- G01R31/245—Testing of gas discharge tubes
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Abstract
The invention provides an HV aging sorting circuit of a gas discharge tube, which can effectively reduce energy loss, and comprises an aging circuit used for providing follow current voltage and current to enable the gas discharge tube to enter an arc discharge state, a high-voltage pulse circuit used for providing a state of breaking through the gas discharge tube and enabling the gas discharge tube to enter a pulse discharge state, and a sampling sorting circuit used for judging whether the average current of the gas discharge tube meets the aging process requirements after current sampling and providing a sorting signal. The gas discharge tube HV aging sorting circuit capable of effectively reducing energy loss greatly reduces aging power supply voltage from thousands of volts to hundreds of volts, reduces energy loss and reduces equipment cost.
Description
Technical Field
The invention relates to an aging process of a high-voltage gas discharge tube, in particular to an HV aging sorting circuit of a gas discharge tube, which can effectively reduce energy loss.
Background
The gas discharge tube is composed of two electrodes which are encapsulated in a ceramic tube filled with inert gas and are separated by a certain distance, and is an important switch protection component. In the production process of the gas discharge tube, the aging of the gas discharge tube is the guarantee of the product quality. The high-voltage aging circuit is required to be configured when the high-voltage gas discharge tube is aged in the original aging process, the power consumption is large in the aging process, the aging current detection circuit is poor in stability, and automatic sorting is not easy to perform.
The high-voltage pulse breakdown is to insert a high-voltage pulse into each of a 30-degree angle and a 210-degree angle of a low-voltage aging circuit, the high-voltage pulse breaks down a gas discharge tube, and low-voltage power frequency current flows through the gas discharge tube to achieve the aging function; because the actual aging voltage is low, the stability of the current detection circuit is high, and the sorting are easy to carry out.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide a gas discharge tube HV aging sorting circuit capable of effectively reducing energy loss.
In order to achieve the above objects and other related objects, the present invention provides the following technical solutions: a gas discharge tube (HV) aging sorting circuit capable of effectively reducing energy loss comprises an aging circuit for providing follow current voltage and current to enable a gas discharge tube to enter an arc discharge state, a high-voltage pulse circuit for providing high-voltage pulse for breaking down the gas discharge tube and enabling the gas discharge tube to enter a pulse discharge state, and a sampling sorting circuit for judging whether the average current of the gas discharge tube meets the aging process requirements after current sampling and providing a material picking signal.
The preferable technical scheme is as follows: the aging circuit comprises a boosting transformer T1, the input end of a primary winding of the boosting transformer T1 is connected with a first power supply U1, the high end of a secondary winding of the boosting transformer T1 is connected with one end of a current-limiting resistor R1, the other end of the current-limiting resistor R1 is connected with the anode of the gas discharge tube, and the low end of the secondary winding of the boosting transformer T1 is connected with the cathode of the gas discharge tube.
The preferable technical scheme is as follows: the high-voltage pulse circuit comprises a pulse transformer T2, a primary winding input end of the pulse transformer T2, a second power supply U2 and a charging resistor R2 are connected in series to form a power supply input circuit, the charging resistor R2 is located on the high end side of the primary winding of the pulse transformer T2, the primary winding input end of the pulse transformer T2 is further connected in parallel with a pulse capacitor C1, a solid discharge tube group VE and a piezoresistor R3, a secondary winding output end of the pulse transformer T2 is connected with the gas discharge tube, and a discharge resistor R4 is further connected in parallel with the secondary winding output end of the pulse transformer T2.
The preferable technical scheme is as follows: the solid discharge tube set VE includes a first solid discharge tube VE1 and a second solid discharge tube VE2 connected in series.
The preferable technical scheme is as follows: the sampling sorting circuit comprises a voltage comparator IC, wherein a first input end of the voltage comparator IC receives a direct current power supply provided by a first rectifier bridge BR1, a second input end of the voltage comparator IC receives a current signal collected by an induction coil L1 and rectified by a second rectifier bridge BR2, and a judgment voltage threshold value is set inside the voltage comparator IC.
The preferable technical scheme is as follows: and a clamping diode DW1 is connected in parallel with the second input end of the voltage comparator IC.
The preferable technical scheme is as follows: and a current limiting resistor R5 is connected in series with the positive end circuit in the second input circuit of the voltage comparator IC.
The preferable technical scheme is as follows: the output end of the voltage comparator IC is sequentially connected with a pull-up resistor R6 and a power amplifier tube N1, and P1 and P2 are sorting control output terminals.
Due to the application of the technical scheme, the invention has the beneficial effects that:
the gas discharge tube HV aging sorting circuit capable of effectively reducing energy loss greatly reduces aging power supply voltage from thousands of volts to hundreds of volts, reduces energy loss and reduces equipment cost.
Drawings
FIG. 1 is a schematic view of the present invention.
FIG. 2 is a schematic diagram of an aging circuit according to the present invention.
FIG. 3 is a schematic diagram of a high voltage pulse circuit according to the present invention.
FIG. 4 is a schematic diagram of a sampling and sorting circuit according to the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Please refer to fig. 1-4. It should be understood that in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which the product of the present invention is usually placed in when used, which is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should be further noted that, unless otherwise specifically stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediate medium, and a communication between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
as shown in fig. 1, the aging sorting circuit for a gas discharge tube HV capable of effectively reducing energy loss provided by the present application includes an aging circuit, a high voltage pulse circuit, and a sampling sorting circuit. The aging circuit is used for providing follow current voltage and current to enable the gas discharge tube to enter arc discharge, so that the electronic powder is fully activated; the high-voltage pulse circuit is used for providing breakdown gas discharge tubes and enabling the breakdown gas discharge tubes to enter glow discharge; the sampling and sorting circuit is used for judging whether the gas discharge tube is fully aged after current sampling and providing a material picking signal.
As shown in fig. 2, the aging circuit includes a step-up transformer T1, the input end of the primary winding of the step-up transformer T1 is connected to the ac power supply U1, the high end of the secondary winding of the step-up transformer T1 is connected to one end of a current-limiting resistor R1, the other end of the current-limiting resistor R1 is connected to the anode of the gas discharge tube, and the low end of the secondary winding of the step-up transformer T1 is connected to the cathode of the gas discharge tube. The current limiting resistor R1 is a power resistor, the resistance value is calculated according to the current value and the aging voltage value required by follow current in design, and the power of the current limiting resistor R1 is 2.5 times larger than the calculated power value, so that the resistance value can not drift or be damaged due to overhigh temperature in the use process.
As shown in fig. 3, the high voltage pulse circuit includes a pulse transformer T2, and a primary winding input terminal of the pulse transformer T2 is connected in series with a second power supply U2 and a charging resistor R2 to form a power supply input circuit. The charging resistor R2 is located on the high-side of the primary winding of the pulse transformer T2. The input end of the primary winding of the pulse transformer T2 is also connected in parallel with a pulse capacitor C1, a solid discharge tube group VE and a piezoresistor R3. The output end of the secondary winding of the pulse transformer T2 is connected with the gas discharge tube, and the output end of the secondary winding of the pulse transformer T2 is also connected in parallel with a bleeder resistor R4 (used for discharging residual magnetic energy of the pulse transformer T2 to ensure the normal operation of the pulse transformer T2).
Further, the solid discharge tube set VE includes a first solid discharge tube VE1 and a second solid discharge tube VE2 connected in series.
As shown in fig. 4, the sampling and sorting circuit includes a voltage comparator IC, a first input terminal of the voltage comparator IC receives a dc power provided by a first rectifier bridge BR1, a second input terminal of the voltage comparator IC receives a current signal collected by an induction coil L1 and rectified by a second rectifier bridge BR2, and a decision voltage threshold is set inside the voltage comparator IC.
Furthermore, a clamping diode DW1 is connected in parallel to a second input end of the voltage comparator IC to clamp the highest voltage value of the input signal, so as to play a role in overvoltage protection.
Furthermore, a current limiting resistor R5 is connected in series with the positive end circuit in the second input circuit of the voltage comparator IC to control the input current of the input voltage comparator IC and play a role in limiting current.
Further, the output terminal of the voltage comparator IC is sequentially connected with a pull-up resistor R6 (for enabling the output signal to normally drive the power amplifier tube N1) and a power amplifier tube N1 (for amplifying the output signal of the voltage comparator IC), and P1 and P2 are sorting control output terminals.
Therefore, the invention has the following advantages:
the gas discharge tube HV aging sorting circuit capable of effectively reducing energy loss greatly reduces aging power supply voltage from thousands of volts to hundreds of volts, reduces energy loss and reduces equipment cost.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (8)
1. The utility model provides a can effectively reduce ageing sorting circuit of gas discharge tube HV of energy loss which characterized in that: the device comprises an aging circuit for providing follow current voltage and current to enable a gas discharge tube to enter an arc discharge state, a high-voltage pulse circuit for providing breakdown for the gas discharge tube and enabling the gas discharge tube to enter a pulse discharge state, and a sampling and sorting circuit for judging whether the average current of the gas discharge tube meets the aging process requirements or not after current sampling and providing a material selecting signal.
2. The HV aging sorting circuit for gas discharge tubes according to claim 1, wherein the HV aging sorting circuit is configured to: the aging circuit comprises a boosting transformer T1, the input end of a primary winding of the boosting transformer T1 is connected with a first power supply U1, the high end of a secondary winding of the boosting transformer T1 is connected with one end of a current-limiting resistor R1, the other end of the current-limiting resistor R1 is connected with the anode of the gas discharge tube, and the low end of the secondary winding of the boosting transformer T1 is connected with the cathode of the gas discharge tube.
3. The HV aging sorting circuit for gas discharge tubes according to claim 1, wherein the HV aging sorting circuit is configured to: the high-voltage pulse circuit comprises a pulse transformer T2, a primary winding input end of the pulse transformer T2, a second power supply U2 and a charging resistor R2 are connected in series to form a power supply input circuit, the charging resistor R2 is located on the high end side of the primary winding of the pulse transformer T2, the primary winding input end of the pulse transformer T2 is further connected in parallel with a pulse capacitor C1, a solid discharge tube group VE and a piezoresistor R3, a secondary winding output end of the pulse transformer T2 is connected with the gas discharge tube, and a discharge resistor R4 is further connected in parallel with the secondary winding output end of the pulse transformer T2.
4. The HV aging sorting circuit for gas discharge tubes according to claim 3, wherein the HV aging sorting circuit is configured to: the solid discharge tube set VE includes a first solid discharge tube VE1 and a second solid discharge tube VE2 connected in series.
5. The HV aging sorting circuit for gas discharge tubes according to claim 1, wherein the HV aging sorting circuit is configured to: the sampling sorting circuit comprises a voltage comparator IC, wherein a first input end of the voltage comparator IC receives a direct current power supply provided by a first rectifier bridge BR1, a second input end of the voltage comparator IC receives a current signal collected by an induction coil L1 and rectified by a second rectifier bridge BR2, and a judgment voltage threshold value is set inside the voltage comparator IC.
6. The gas discharge tube HV aging sorting circuit of claim 5, wherein the energy loss is effectively reduced by: and a clamping diode DW1 is connected in parallel with the second input end of the voltage comparator IC.
7. The gas discharge tube HV aging sorting circuit of claim 5, wherein the energy loss is effectively reduced by: and a current limiting resistor R5 is connected in series with the positive end circuit in the second input circuit of the voltage comparator IC.
8. The gas discharge tube HV aging sorting circuit of claim 5, wherein the energy loss is effectively reduced by: the output end of the voltage comparator IC is sequentially connected with a pull-up resistor R6 and a power amplifier tube N1, and P1 and P2 are sorting control output terminals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011416977.3A CN112485625A (en) | 2020-12-07 | 2020-12-07 | Gas discharge tube HV aging sorting circuit capable of effectively reducing energy loss |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011416977.3A CN112485625A (en) | 2020-12-07 | 2020-12-07 | Gas discharge tube HV aging sorting circuit capable of effectively reducing energy loss |
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| CN112485625A true CN112485625A (en) | 2021-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011416977.3A Pending CN112485625A (en) | 2020-12-07 | 2020-12-07 | Gas discharge tube HV aging sorting circuit capable of effectively reducing energy loss |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112964971A (en) * | 2021-03-23 | 2021-06-15 | 电子科技大学 | Method for measuring electron energy distribution curve of collector inlet of traveling wave tube |
Citations (6)
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|---|---|---|---|---|
| EP0147922A1 (en) * | 1983-10-03 | 1985-07-10 | General Electric Company | Ballast circuits for lighting units |
| US5068577A (en) * | 1990-11-19 | 1991-11-26 | Integrated Systems Engineering, Inc. | Constant current drive system for fluorescent tubes |
| CN101846721A (en) * | 2010-06-12 | 2010-09-29 | 西安交通大学 | Measuring device for direct current breakdown voltage of gas discharge tube and method thereof |
| CN203103947U (en) * | 2012-12-28 | 2013-07-31 | 烟台东方电子衡器有限公司 | Lightning protector |
| CN104754845A (en) * | 2015-02-04 | 2015-07-01 | 中国科学院上海光学精密机械研究所 | Pulse xenon lamp simulation testing circuit |
| CN204720412U (en) * | 2015-07-02 | 2015-10-21 | 江苏东光电子有限公司 | A kind of gas discharge tube HV aging circuit |
-
2020
- 2020-12-07 CN CN202011416977.3A patent/CN112485625A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0147922A1 (en) * | 1983-10-03 | 1985-07-10 | General Electric Company | Ballast circuits for lighting units |
| US5068577A (en) * | 1990-11-19 | 1991-11-26 | Integrated Systems Engineering, Inc. | Constant current drive system for fluorescent tubes |
| CN101846721A (en) * | 2010-06-12 | 2010-09-29 | 西安交通大学 | Measuring device for direct current breakdown voltage of gas discharge tube and method thereof |
| CN203103947U (en) * | 2012-12-28 | 2013-07-31 | 烟台东方电子衡器有限公司 | Lightning protector |
| CN104754845A (en) * | 2015-02-04 | 2015-07-01 | 中国科学院上海光学精密机械研究所 | Pulse xenon lamp simulation testing circuit |
| CN204720412U (en) * | 2015-07-02 | 2015-10-21 | 江苏东光电子有限公司 | A kind of gas discharge tube HV aging circuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112964971A (en) * | 2021-03-23 | 2021-06-15 | 电子科技大学 | Method for measuring electron energy distribution curve of collector inlet of traveling wave tube |
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