CN103166309A - Automatic switchover switch device with microsecond-scale switchover time - Google Patents
Automatic switchover switch device with microsecond-scale switchover time Download PDFInfo
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- CN103166309A CN103166309A CN2013101259841A CN201310125984A CN103166309A CN 103166309 A CN103166309 A CN 103166309A CN 2013101259841 A CN2013101259841 A CN 2013101259841A CN 201310125984 A CN201310125984 A CN 201310125984A CN 103166309 A CN103166309 A CN 103166309A
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- power switch
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Abstract
The invention provides an automatic switchover switch device with microsecond-scale switchover time. The automatic switchover switch device comprises a switchover circuit part and a follow current circuit part, wherein the switchover circuit part comprises two paths of input power supply switch parts; the two paths of input power supply switch parts are connected in parallel to be connected to a load end; each path of input power supply switch part is provided with an electronic switch part; the electronic switch part is used for turning off the path of input power supply quickly when power failure of one path of input power supply occurs; the follow current circuit part is connected in parallel with the switchover circuit part and is used for supplying power to the load end temporarily when the power failure of one path of input power supply switch part occurs and the switchover of the other path of input power supply switch part is not completed. The automatic switchover switch device has the microsecond-scale switchover time, can switch the two paths of input power supplies physically like the conventional relay or contactor and is high in response speed, so that the stable power supply of key equipment is ensured.
Description
Technical field
The present invention relates to the automatic transfer switch technical field of low-voltage electrical aspect, specifically, the present invention relates to a kind of Microsecond grade automatic transfer switch device of switching time that has.
Background technology
Existing automatic transfer switch generally has two kinds of switching modes on the market: low current uses relay switch and high electric current to use contactor to switch.Above-mentioned dual mode all exists switching time long and easily cause when switching and impact and the problem of shake.Wherein, switching stabilization time of relay, contactor was especially up to more than 30 milliseconds generally at the 7-12 millisecond.Enough cause like this resetting of sensitive key equipment long switching time, and when the two-way voltage out of phase of input, situation will be more abominable.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of Microsecond grade automatic transfer switch device of switching time that has, can either switch the two-way input power by physics as existing relay or contactor, the reaction speed that is exceedingly fast is arranged again, guarantee the power supply supply that key equipment is stable.
For solving the problems of the technologies described above, the invention provides a kind of Microsecond grade automatic transfer switch device of switching time that has, comprising:
The commutation circuit part, it has two-way input power switch sections, be connected to a load end after the parallel connection of the described input power switch sections of two-way, the described input power switch sections in each road has respectively an electronic switch part, described electronic switch partly is used for when one road input power is detected the generation power down, this road input power being disconnected fast;
The freewheeling circuit part, in parallel with described commutation circuit part, before the described input power switch sections in another road is not also completed switching for the generation power down detected when one tunnel described input power switch sections, described load end is powered temporarily.
Alternatively, the described input power switch sections of two-way has respectively a power switch transistor and a relay, and described power switch transistor is arranged in described electronic switch part; When one road input power is detected the generation power down, at first one microprocessor is set to cut-off state with the described power switch transistor of corresponding input power switch sections, and begin to close described relay, begin simultaneously to open the relay of another road input power switch sections.
Alternatively, before the described relay of described another road input power switch sections did not have complete closure, described microprocessor was controlled a storage capacitor of described freewheeling circuit part and by four pliotrons in electric bridge, described load end is powered temporarily.
Alternatively, the needed steady closure of described relay of described another road input power switch sections of process is after the time, described microprocessor cuts out described electric bridge output, open simultaneously the described power switch transistor of described another road input power switch sections, make the voltage of the input power of described another road input power switch sections can be loaded into described load end.
Alternatively, described automatic transfer switch device by described freewheeling circuit part to duration of described load end power supply less than or equal to 7.5 milliseconds.
Compared with prior art, the present invention has the following advantages:
Automatic transfer switch device of the present invention has the switching time of Microsecond grade, can either switch the two-way input power by physics as existing relay or contactor, and the reaction speed that is exceedingly fast is arranged again, guarantees the power supply supply that key equipment is stable.
Description of drawings
The above and other features of the present invention, character and advantage will become more obvious by the description below in conjunction with drawings and Examples, wherein:
Fig. 1 is the circuit structure diagram of commutation circuit part of the automatic transfer switch device with Microsecond grade switching time of one embodiment of the invention;
Fig. 2 is the circuit structure diagram of freewheeling circuit part of the automatic transfer switch device with Microsecond grade switching time of one embodiment of the invention;
Fig. 3 is the current waveform figure that the automatic transfer switch device with Microsecond grade switching time of one embodiment of the invention observes from load end.
Embodiment
The invention will be further described below in conjunction with specific embodiments and the drawings; set forth in the following description more details so that fully understand the present invention; but the present invention obviously can implement with the multiple alternate manner that is different from this description; those skilled in the art can be in the situation that do similar popularization, deduction without prejudice to intension of the present invention according to practical situations, therefore should be with content constraints protection scope of the present invention of this specific embodiment.
Automatic transfer switch device of the present invention comprises that at least one switches circuit part and a freewheeling circuit part.Fig. 1 is the circuit structure diagram of commutation circuit part of the automatic transfer switch device with Microsecond grade switching time of one embodiment of the invention; Fig. 2 is the circuit structure diagram of freewheeling circuit part of the automatic transfer switch device with Microsecond grade switching time of one embodiment of the invention.As shown in Figure 1, this commutation circuit partly has two-way input power switch sections, is connected to a load end after the parallel connection of two-way input power switch sections.Each road input power switch sections increases respectively an electronic switch part (part of oval dotted line in seeing Fig. 1) newly on the basis of traditional ATS circuit, this electronic switch partly is used for when one road input power is detected the generation power down, this road input power being disconnected fast.In the present embodiment, two-way input power switch sections has respectively a power switch transistor Q4, Q1 and a relay LS3, LS4, and power switch transistor Q4, Q1 are each positioned in the electronic switch part.
As shown in Figure 2, the part of this freewheeling circuit part (electric capacity freewheeling circuit) for newly increasing fully on the basis of traditional ATS circuit, it is in parallel with above-mentioned commutation circuit part, be used for when one road input power switch sections detect power down occurs and another road input power switch sections also do not complete switching before (being that the relay on another road is also fully before adhesive), load end is powered temporarily.
The operation principle of above-mentioned Fig. 1, automatic transfer switch device embodiment illustrated in fig. 2 can be described as follows:
Under normal circumstances, the automatic transfer switch device is accepted two-way input power L1-N1 and L2-N2, generally gives tacit consent to the selected supply load end of L1-N1.If one road input power L1-N1 is detected the generation power down, at first one microprocessor (not shown) is set to cut-off state with the power switch transistor Q4 of the input power switch sections on corresponding this road, and beginning closed relay LS3, begin simultaneously to open the relay LS4 from another road input power L2-N2 input.Before this relay LS4 did not have complete closure, the storage capacitor C10 that microprocessor is controlled the freewheeling circuit part powered to load end by four pliotron Q7, Q10, Q12 and Q13 in electric bridge temporarily.The needed steady closure of relay LS4 of this road input power switch sections of process is after the time, microprocessor cuts out electric bridge output, open simultaneously the power switch transistor Q1 of this road input power switch sections, the voltage of input power L2-N2 can be loaded on load end, thereby seamless completing from L1-N1 is input to the switching that L2-N2 inputs.In whole handoff procedure, load end is charged all the time, thereby does not have the generation that resets; After switching is completed, L1-N1 input and the complete physical isolation of L2-N2 input, fail safe and traditional automatic transfer switch ATS are equal to fully.
Fig. 3 is the current waveform figure that the automatic transfer switch device with Microsecond grade switching time of one embodiment of the invention observes from load end.Suppose the switching that caused by input power L1-N1 power down, can see, observed power down at about A stage (5mS left and right) microprocessor; Microprocessor is powered to load end by the freewheeling circuit part in the B stage after power down being detected, and this process continues to be approximately 7.5mS; After stage, system powers C stage (12.5mS left and right) having switched to by input power L2-N2 of success at B.In whole handoff procedure, power supply is not got back to zero point because of power down, and whole handoff procedure is seamless completing all.
Automatic transfer switch device of the present invention has the switching time of Microsecond grade, can either switch the two-way input power by physics as existing relay or contactor, and the reaction speed that is exceedingly fast is arranged again, guarantees the power supply supply that key equipment is stable.
Although the present invention with preferred embodiment openly as above, it is not to limit the present invention, and any those skilled in the art can make possible change and modification without departing from the spirit and scope of the present invention.Therefore, every content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any modification, equivalent variations and modification that above embodiment does, within all falling into the protection range that claim of the present invention defines.
Claims (5)
1. one kind has the Microsecond grade automatic transfer switch device of switching time, comprising:
The commutation circuit part, it has two-way input power switch sections, be connected to a load end after the parallel connection of the described input power switch sections of two-way, the described input power switch sections in each road has respectively an electronic switch part, described electronic switch partly is used for when one road input power is detected the generation power down, this road input power being disconnected fast;
The freewheeling circuit part, in parallel with described commutation circuit part, before the described input power switch sections in another road is not also completed switching for the generation power down detected when one tunnel described input power switch sections, described load end is powered temporarily.
2. automatic transfer switch device according to claim 1, is characterized in that, the described input power switch sections of two-way has respectively a power switch transistor and a relay, and described power switch transistor is arranged in described electronic switch part; When one road input power is detected the generation power down, at first one microprocessor is set to cut-off state with the described power switch transistor of corresponding input power switch sections, and begin to close described relay, begin simultaneously to open the relay of another road input power switch sections.
3. automatic transfer switch device according to claim 2, it is characterized in that, before the described relay of described another road input power switch sections did not have complete closure, described microprocessor was controlled a storage capacitor of described freewheeling circuit part and by four pliotrons in electric bridge, described load end is powered temporarily.
4. automatic transfer switch device according to claim 3, it is characterized in that, the needed steady closure of described relay of described another road input power switch sections of process is after the time, described microprocessor cuts out described electric bridge output, open simultaneously the described power switch transistor of described another road input power switch sections, make the voltage of the input power of described another road input power switch sections can be loaded into described load end.
5. the described automatic transfer switch device of any one according to claim 1 to 4, is characterized in that, described automatic transfer switch device by described freewheeling circuit part to duration of described load end power supply less than or equal to 7.5 milliseconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101259841A CN103166309A (en) | 2013-04-12 | 2013-04-12 | Automatic switchover switch device with microsecond-scale switchover time |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101259841A CN103166309A (en) | 2013-04-12 | 2013-04-12 | Automatic switchover switch device with microsecond-scale switchover time |
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| CN103166309A true CN103166309A (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013101259841A Pending CN103166309A (en) | 2013-04-12 | 2013-04-12 | Automatic switchover switch device with microsecond-scale switchover time |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947334A (en) * | 2017-11-21 | 2018-04-20 | 广州圣力电源实业有限公司 | A kind of two-supply circuit system |
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| US20060078773A1 (en) * | 2001-10-12 | 2006-04-13 | Speranza A J | Method and system for controlling and recovering short duration bridge power to maximize backup power |
| CN101118459A (en) * | 2006-08-01 | 2008-02-06 | 泰安电脑科技（上海）有限公司 | Electric power switching mechanism of crowd together computer and method |
| CN202059209U (en) * | 2011-04-29 | 2011-11-30 | 台达电子企业管理（上海）有限公司 | Power supply device |
| CN102842958A (en) * | 2012-09-28 | 2012-12-26 | 任佶 | Mechanical-electronic hybrid double-power-supply automatic change-over switch |
| CN102842950A (en) * | 2011-06-23 | 2012-12-26 | 北京联动天翼科技有限公司 | Alternating current and direct current power supply switching device |
| CN203225580U (en) * | 2013-04-12 | 2013-10-02 | 上海能巍电气科技有限公司 | Automatic changeover switch device having microsecond changeover time |
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2013
- 2013-04-12 CN CN2013101259841A patent/CN103166309A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060078773A1 (en) * | 2001-10-12 | 2006-04-13 | Speranza A J | Method and system for controlling and recovering short duration bridge power to maximize backup power |
| CN101118459A (en) * | 2006-08-01 | 2008-02-06 | 泰安电脑科技（上海）有限公司 | Electric power switching mechanism of crowd together computer and method |
| CN202059209U (en) * | 2011-04-29 | 2011-11-30 | 台达电子企业管理（上海）有限公司 | Power supply device |
| CN102842950A (en) * | 2011-06-23 | 2012-12-26 | 北京联动天翼科技有限公司 | Alternating current and direct current power supply switching device |
| CN102842958A (en) * | 2012-09-28 | 2012-12-26 | 任佶 | Mechanical-electronic hybrid double-power-supply automatic change-over switch |
| CN203225580U (en) * | 2013-04-12 | 2013-10-02 | 上海能巍电气科技有限公司 | Automatic changeover switch device having microsecond changeover time |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947334A (en) * | 2017-11-21 | 2018-04-20 | 广州圣力电源实业有限公司 | A kind of two-supply circuit system |
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Application publication date: 20130619 |