CN100568694C - A kind of AC voltage instantaneous change device - Google Patents
A kind of AC voltage instantaneous change device Download PDFInfo
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- CN100568694C CN100568694C CNB2008100650822A CN200810065082A CN100568694C CN 100568694 C CN100568694 C CN 100568694C CN B2008100650822 A CNB2008100650822 A CN B2008100650822A CN 200810065082 A CN200810065082 A CN 200810065082A CN 100568694 C CN100568694 C CN 100568694C
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Abstract
The present invention relates to a kind of AC voltage instantaneous change device, comprise the voltage input when being used to do the surge impact test, or do electric voltage dropping and the ac input end imported of the voltage during abort in short-term; Be used for to become the full-wave bridge rectifier circuit of the d. c. voltage signal of frequency multiplication half-sine wave from the signal full-wave rectification that exchanges input; Be used for the diverter switch of transition switching from the signal of full-wave bridge rectifier circuit; Be used to detect from the phase place of full-wave bridge rectifier circuit signal and the shutoff of control its switch and the phase-detection of opening, control circuit and rectification spacing output circuit.This device is easy to realize, cheap, can accurately control voltage transient phase angle and transition time, all adopt the electronic equipment that exchanges input full-wave rectification technology all can use this device to finish the alternating voltage surge impact of equivalence, electric voltage dropping and the reliability testing of interruption in short-term.
Description
Technical field
The present invention relates to electronic device field, be specifically related to a kind of AC voltage instantaneous change device.
Background technology
In the field tests of electronic equipment, the surge impact of alternating voltage, electric voltage dropping and interruption in short-term all are reliability testing relatively more commonly used, the testing equipment that adopts at the test of AC-input voltage transition is the alternating current source equipment of formula able to programme at present, and such testing equipment has shortcomings such as cost costliness, complicated operation; Another method commonly used is to adopt two-way alternating current source and diverter switch to give power electronic equipment, reach the transition effect of alternating voltage by diverter switch, such experimental rig is uncontrollable to the transition phase angle and the transition retention time of alternating voltage, can not satisfy the test requirements document that IEC 61000-4-11 alternating voltage falls and interrupt in short-term.
Summary of the invention
Technical problem to be solved by this invention is, a kind of AC voltage instantaneous change device is provided, this device is easy to realize, cheap, can accurately control voltage transient phase angle and transition time, all adopt the electronic equipment that exchanges input full-wave rectification technology all can use this device to finish the alternating voltage surge impact of equivalence, electric voltage dropping and the reliability testing of interruption in short-term.
A kind of AC voltage instantaneous change device comprises
First ac input end, the high voltage input when being used to do the surge impact test, or do electric voltage dropping and in short-term the normal voltage during abort import;
Second ac input end, the normal voltage input when being used to do the surge impact test, or do electric voltage dropping and in short-term the low-voltage during abort import;
First full-wave bridge rectifier circuit is used for and will becomes the d. c. voltage signal of frequency multiplication half-sine wave from the signal full-wave rectification of first ac input end;
Second full-wave bridge rectifier circuit is used for and will becomes the d. c. voltage signal of frequency multiplication half-sine wave from the signal full-wave rectification of second ac input end;
Diverter switch is used for the signal of transition switching from first full-wave bridge rectifier circuit, and its operate time, the phase place of action was between 0～180 ° less than 1ms;
Phase-detection, control circuit detect the phase place from the first full-wave bridge rectifier circuit signal; And the shutoff of control its switch and open-minded;
The rectification spacing output circuit is used to isolate from the signal of first full-wave bridge rectifier circuit and the signal of second full-wave bridge rectifier circuit, promptly at any time guarantees to have only the one tunnel higher electric of exporting to.
Described first ac input end is identical with the input voltage phase of described second ac input end.
Described first ac input end and described second ac input end are realized by the AC voltage regulator with two-way output.
The action phase place of described diverter switch and action retention time are by described phase-detection, control circuit setting.
Described rectification spacing output circuit is two diodes, and one of them diode cathode links to each other with diverter switch, and the positive pole of another diode links to each other with second full-wave bridge rectifier circuit, and the negative pole of two diodes connects as output.
This AC voltage instantaneous change device utilizes the symmetry of alternating voltage positive-negative half-cycle, to powered by examination equipment after the alternating voltage full-wave rectification, adopt the electronic equipment that exchanges input full-wave rectification technology for all, the reliability testing that all can use this device to finish the alternating voltage surge impact of equivalence, electric voltage dropping and interrupt in short-term.Device of the present invention compared with prior art has the following advantages:
1, be easy to realize, cheap;
2, adopt less components and parts, reliability height;
3, can reach accurate control voltage transient phase angle and transition time.
Description of drawings
Fig. 1 is a theory diagram of the present invention;
Fig. 2 is the realization theory diagram of the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
As described in Figure 1, be theory diagram of the present invention.Among the figure:
A1: exchange input 1, the high voltage input when being used to do the surge impact test, or do electric voltage dropping and in short-term the normal voltage during abort import, be wherein one road alternating voltage of this device AC voltage instantaneous change, its phase place is identical with A2;
A2: exchange input 2, the normal voltage input when being used to do the surge impact test, or do electric voltage dropping and in short-term the low-voltage during abort import, be wherein one road alternating voltage of this device AC voltage instantaneous change, its phase place is identical with A1;
B1: bridge full-wave rectifier, play the effect that the A1 full-wave rectification is become the DC voltage waveform of frequency multiplication half-sine wave;
B2: bridge full-wave rectifier, play the effect that the A2 full-wave rectification is become the DC voltage waveform of frequency multiplication half-sine wave;
C1: phase place inspection, observing and controlling system circuit, detect the phase place of frequency multiplication semisinusoidal voltage waveform, play the effect that control C2 turn-offs and opens, the phase place of wherein controlling the C2 action can be set between 0～180 °, C2 moves the retention time and also can be provided with;
C2: diverter switch, play the effect that the output voltage transition is switched, the operate time that requires diverter switch is less than 1ms;
D: output is isolated in rectification, plays the effect of isolating the output of two-way voltage, at any time guarantees to have only the one tunnel higher electric of exporting to.
The present invention utilizes turning on and off of diverter switch control frequency multiplication half-sine wave, after isolating through output, reaches the purpose of AC-input voltage transition.
As shown in Figure 2, be the realization theory diagram of one of them embodiment of the present invention, form by four parts, A is the ac input division branch, is realized the function of the alternating current source that the two-way phase place is identical by the AC voltage regulator with two-way output; B is the bridge full-wave rectifier part, finishes the rectification of two-way alternating voltage respectively by two rectifier bridges, and the voltage waveform after the rectification is a frequency multiplication half-sine wave direct voltage; C is phase-detection, control circuit and diverter switch K1, finishes detection frequency multiplication half sine wave voltage phase place and control its switch K1 in the specific phase angle conducting or the effect of shutoff, and conducting or the turn-off time of diverter switch K1 are adjustable; D is that output is isolated in rectification, reaches the effect that output is isolated by two diode parallel connections, guarantees to have only a road higher voltage to export to the examination equipment that is subjected to.
During the actual use of apparatus of the present invention, a road of diverter switch K1 control has high voltage output, other one the tunnel for the output voltage minimum value be 0 adjustable voltage, K1 is closed when being tried the equipment operate as normal, turn-off K1 in the time will carrying out electric voltage dropping, output voltage can switch to less output on the way immediately.Can finish the electric voltage dropping that meets IEC 61000-4-11 and interrupt reliability test in short-term specific electronic equipment set by this device.Being achieved as follows of the reliability test of impacting for voltage surge, K1 disconnects when being tried the equipment operate as normal, adopt a road of low output to give and tried the power devices operate as normal, at closed K1 of specific time, output voltage promptly switches on the high voltage, to being subjected to examination equipment to play doing of a voltage surge impact, examination is tried the voltge surge reliability of equipment.
Above-mentioned explanation only is the detailed description to preferred embodiment of the present invention, is not limitation of the invention, and the identical design of thinking every and of the present invention is all in protection scope of the present invention.
Claims (5)
1, a kind of AC voltage instantaneous change device is characterized in that, comprises
First ac input end, the high voltage input when being used to do the surge impact test, or do electric voltage dropping and in short-term the normal voltage during abort import;
Second ac input end, the normal voltage input when being used to do the surge impact test, or do electric voltage dropping and in short-term the low-voltage during abort import;
First full-wave bridge rectifier circuit is used for and will becomes the d. c. voltage signal of frequency multiplication half-sine wave from the signal full-wave rectification of first ac input end;
Second full-wave bridge rectifier circuit is used for and will becomes the d. c. voltage signal of frequency multiplication half-sine wave from the signal full-wave rectification of second ac input end;
Diverter switch is used for the signal of transition switching from first full-wave bridge rectifier circuit;
Phase-detection, control circuit detect the phase place from the first full-wave bridge rectifier circuit signal; And the shutoff of control its switch and open-minded;
The rectification spacing output circuit is used to isolate from the signal of first full-wave bridge rectifier circuit and the signal of second full-wave bridge rectifier circuit, promptly at any time guarantees to have only the one tunnel higher electric of exporting to.
2, AC voltage instantaneous change device as claimed in claim 1 is characterized in that, described first ac input end is identical with the input voltage phase of described second ac input end.
3, AC voltage instantaneous change device as claimed in claim 1 or 2 is characterized in that, described first ac input end and described second ac input end are realized by the AC voltage regulator with two-way output.
4, AC voltage instantaneous change device as claimed in claim 1 is characterized in that, the action phase place of described diverter switch and action retention time are by described phase-detection, control circuit setting.
5, AC voltage instantaneous change device as claimed in claim 1, it is characterized in that, described rectification spacing output circuit is two diodes, one of them diode cathode links to each other with diverter switch, the positive pole of another diode links to each other with second full-wave bridge rectifier circuit, and the negative pole of two diodes connects as output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100650822A CN100568694C (en) | 2008-01-18 | 2008-01-18 | A kind of AC voltage instantaneous change device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100650822A CN100568694C (en) | 2008-01-18 | 2008-01-18 | A kind of AC voltage instantaneous change device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101267164A CN101267164A (en) | 2008-09-17 |
| CN100568694C true CN100568694C (en) | 2009-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2008100650822A Expired - Fee Related CN100568694C (en) | 2008-01-18 | 2008-01-18 | A kind of AC voltage instantaneous change device |
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| Country | Link |
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| CN (1) | CN100568694C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102222972B (en) * | 2011-06-02 | 2013-07-17 | 迈普通信技术股份有限公司 | Switching circuit and power supply device |
| CN103675564B (en) * | 2014-01-02 | 2016-08-24 | 株洲南车时代电气股份有限公司 | A kind of direct current short term outage and supply voltage sudden change simulation test device |
| JP6278314B2 (en) * | 2014-04-18 | 2018-02-14 | パナソニックＩｐマネジメント株式会社 | Lighting device and lighting apparatus using the same |
| CN106849737B (en) * | 2016-11-29 | 2019-01-22 | 北京中电华大电子设计有限责任公司 | A kind of method and device generating power supply random disturbances waveform |
| CN111366760B (en) * | 2018-12-26 | 2024-12-20 | 上海普锐马电子有限公司 | An intelligent frequency drop generator |
| CN113497550B (en) * | 2021-06-21 | 2022-06-03 | 成都天通电子科技有限公司 | Control circuit for starting surge current of AC-DC power supply |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5537044A (en) * | 1994-09-30 | 1996-07-16 | The United States Of America As Represented By The Secretary Of The Navy | Surge voltage generator for pulsing grounded and ungrounded electrical equipment |
| US6211683B1 (en) * | 1996-09-23 | 2001-04-03 | Trench Switzerland Ag | Impulse voltage generator circuit |
| CN2672665Y (en) * | 2003-12-12 | 2005-01-19 | 杭州雷盾电子设备有限公司 | Detector for thunder and lighting surge |
| CN1731192A (en) * | 2004-08-05 | 2006-02-08 | 中兴通讯股份有限公司 | Surge voltage generator |
-
2008
- 2008-01-18 CN CNB2008100650822A patent/CN100568694C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5537044A (en) * | 1994-09-30 | 1996-07-16 | The United States Of America As Represented By The Secretary Of The Navy | Surge voltage generator for pulsing grounded and ungrounded electrical equipment |
| US6211683B1 (en) * | 1996-09-23 | 2001-04-03 | Trench Switzerland Ag | Impulse voltage generator circuit |
| CN2672665Y (en) * | 2003-12-12 | 2005-01-19 | 杭州雷盾电子设备有限公司 | Detector for thunder and lighting surge |
| CN1731192A (en) * | 2004-08-05 | 2006-02-08 | 中兴通讯股份有限公司 | Surge voltage generator |
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| CN101267164A (en) | 2008-09-17 |
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