CN205157631U - Switching power supply surge current testing arrangement - Google Patents
Switching power supply surge current testing arrangement Download PDFInfo
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- CN205157631U CN205157631U CN201520899701.3U CN201520899701U CN205157631U CN 205157631 U CN205157631 U CN 205157631U CN 201520899701 U CN201520899701 U CN 201520899701U CN 205157631 U CN205157631 U CN 205157631U
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- power supply
- switching power
- surge current
- storage capacitor
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Abstract
The utility model discloses a switching power supply surge current testing arrangement, including input terminal, fairing, steady voltage energy -storage capacitor, switch and output terminal, wherein, the input terminal is connected with fairing's input, fairing's output is parallelly connected with steady voltage energy -storage capacitor, and fairing carries out the rectification to the alternating current, and the output direct current charges for steady voltage energy -storage capacitor, steady voltage energy -storage capacitor passes through the switch and is connected with output terminal, provides peak voltage for switching power supply. The utility model discloses a steady voltage energy -storage capacitor storage obtains switching power supply's peak voltage, and this peak voltage of rethread comes the biggest surge current of test switch electric capacity, ensures switching power supply's input voltage akin target input voltage's peak value peak voltage, directly provides the biggest surge current of test the required the biggest peak voltage of sine wave, and then the test obtains the biggest surge current, and accurate as a result, switching power supply 2 is just with low costs. The utility model also discloses a switching power supply surge current test system.
Description
Technical field
The utility model relates to switch power supply current detection technique field, particularly relates to a kind of Switching Power Supply surge current proving installation and system.
Background technology
Surge current refers to that power supply connects moment, flow into the peak point current of power-supply device, it is an important indicator parameter of power-supply device, method of testing at present for the surge current of power-supply device is mainly divided into two kinds, a kind of is surge current testing apparatus by specialty, but the surge current testing apparatus of specialty is often expensive, and cost is high; Another kind is then by power-supply device is connected into electrical network, surge current is tested by the peak value obtaining electrical network output voltage, but the voltage that electrical network exports is sinusoidal waveform, may not be crest maximum voltage at the voltage of booting moment input power equipment, therefore the crest input voltage of AC sine wave can only be caught by ceaselessly switching on and shutting down, the method is lost time very much, and result is not accurate.
Therefore, how to provide that a kind of test process is simple, cost is low and the Switching Power Supply surge current proving installation that test result precision is high and system are those skilled in the art needs the problem that solves at present.
Utility model content
The purpose of this utility model is to provide a kind of Switching Power Supply surge current proving installation, ensure that the input voltage of Switching Power Supply is equivalent to the peak value maximum voltage of target input voltage, the sinusoidal wave maximum peak voltage of test needed for maximum surge current is directly provided, and then test obtains maximum surge current, result is accurate, and structure is simple and cost is low; Another object of the present utility model is to provide a kind of Switching Power Supply surge current test macro comprising above-mentioned Switching Power Supply surge current proving installation.
For solving the problems of the technologies described above, the utility model provides a kind of Switching Power Supply surge current proving installation, comprises input terminal, fairing, voltage stabilizing storage capacitor, switch and lead-out terminal, wherein:
Described input terminal is connected with the input end of described fairing, and the target input voltage U for alternating current source foundation Switching Power Supply by described input terminal for described fairing provides crest voltage is
alternating current;
The output terminal of described fairing is in parallel with described voltage stabilizing storage capacitor, and described fairing carries out rectification to described alternating current, and exporting direct current is the charging of described voltage stabilizing storage capacitor;
Described voltage stabilizing storage capacitor is connected with described lead-out terminal by described switch, after described voltage stabilizing storage capacitor is full of, when switch closes by described lead-out terminal for described Switching Power Supply provides described crest voltage, to measure the surge current of described Switching Power Supply.
As preferably, this device also comprises:
Be arranged on the power meter on described input terminal.
As preferably, described fairing is H4 bridge type fairing.
As preferably, the number of described voltage stabilizing storage capacitor is 1.
As preferably, the number of described voltage stabilizing storage capacitor is 5.
In order to solve the problems of the technologies described above, the utility model additionally provides a kind of Switching Power Supply surge current test macro, and this system comprises the Switching Power Supply surge current proving installation described in above-mentioned any one.
A kind of Switching Power Supply surge current proving installation that the utility model provides and system, the storage of voltage stabilizing storage capacitor is adopted to obtain the crest voltage of Switching Power Supply, the maximum surge current of Test Switchboard electric capacity is carried out again by this crest voltage, visible, the Switching Power Supply surge current proving installation that the utility model provides guarantees that the input voltage of Switching Power Supply is equivalent to the peak value maximum voltage of target input voltage, the sinusoidal wave maximum peak voltage of test needed for maximum surge current is directly provided, and then test obtains maximum surge current, result is accurate, and structure is simple and cost is low.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, be briefly described to the accompanying drawing used required in prior art and embodiment below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of a kind of Switching Power Supply surge current proving installation that Fig. 1 provides for the utility model;
The circuit theory diagrams of a kind of Switching Power Supply surge current proving installation that Fig. 2 provides for the utility model.
Embodiment
Core of the present utility model is to provide a kind of Switching Power Supply surge current proving installation, ensure that the input voltage of Switching Power Supply is equivalent to the peak value maximum voltage of target input voltage, the sinusoidal wave maximum peak voltage of test needed for maximum surge current is directly provided, and then test obtains maximum surge current, result is accurate, and structure is simple and cost is low; Another core of the present utility model is to provide a kind of Switching Power Supply surge current test macro comprising above-mentioned Switching Power Supply surge current proving installation.
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Please refer to Fig. 1 and Fig. 2, wherein, the structural representation of a kind of Switching Power Supply surge current proving installation that Fig. 1 provides for the utility model, the circuit theory diagrams of a kind of Switching Power Supply surge current proving installation that Fig. 2 provides for the utility model; This device comprises input terminal, fairing, voltage stabilizing storage capacitor, switch and lead-out terminal, wherein:
Input terminal 1 is connected with the input end of fairing 2, and the target input voltage U for alternating current source foundation Switching Power Supply by input terminal 1 for fairing 2 provides crest voltage is
alternating current;
Be understandable that, target input voltage U here artificially sets, and wishes that recording the surge current of Switching Power Supply under great input voltage sets according to user.Such as user wishes to record the surge current of Switching Power Supply when target input voltage effective value is U, then the crest voltage of the alternating current now exported by alternating current source is set to
then alternating current by input terminal 1 for fairing 2 provides alternating current.
As preferably, fairing 2 is H4 bridge type fairing.
Certainly, fairing 2 here can also be the fairing of other types, and the utility model does not do special restriction at this.
The output terminal of fairing 2 is in parallel with voltage stabilizing storage capacitor 3, and fairing 2 pairs of alternating currents carry out rectification, and exporting direct current is that voltage stabilizing storage capacitor 3 charges;
Fairing 2, after receiving alternating current, carries out rectification to alternating current, obtains direct current, and direct current is that voltage stabilizing storage capacitor 3 charges; When voltage stabilizing storage capacitor 3 is full of, disconnect alternating current source, alternating current source stops charging for voltage stabilizing storage capacitor 3.
As preferably, the number of voltage stabilizing storage capacitor 3 is 1.
As preferably, the number of voltage stabilizing storage capacitor 3 is 5.
Be understandable that, when the number of voltage stabilizing storage capacitor 3 is 1, then require that the capacitance of this voltage stabilizing storage capacitor 3 is large as much as possible, so that foot can store enough large energy.When the number of voltage stabilizing storage capacitor 3 is 5, then the requirement for the capacitance of these 5 voltage stabilizing storage capacitors 3 is lower than the requirement of the capacitance only having 1 voltage stabilizing storage capacitor 3.
Certainly, the number of voltage stabilizing storage capacitor 3 here can also be other numerical value, determines according to actual conditions.
Voltage stabilizing storage capacitor 3 is connected with lead-out terminal 5 by switch 4, after voltage stabilizing storage capacitor 3 is full of, when switch 4 closes by lead-out terminal 5 for Switching Power Supply provides crest voltage, to measure the surge current of Switching Power Supply.
After voltage stabilizing storage capacitor 3 is full of, Closing Switch 4, voltage stabilizing storage capacitor 3 provides crest voltage for Switching Power Supply, now just can measure the surge current of this Switching Power Supply under this crest voltage.
As preferably, this device also comprises:
Be arranged on the power meter on input terminal 1.
Be understandable that, power meter is arranged on two input interfaces of input terminal 1, when the power that power meter display alternating current source exports is lower than predetermined power value, then represents that now voltage stabilizing storage capacitor 3 is full of electricity, then now alternating current source can be disconnected, stop as voltage stabilizing storage capacitor 3 charges.
In addition, predetermined power value here can artificially be arranged, and such as predetermined power value is 0.5W, and certainly, the utility model does not do special restriction for the concrete numerical value of this predetermined power value, determines according to actual conditions.
A kind of Switching Power Supply surge current proving installation that the utility model provides, the storage of voltage stabilizing storage capacitor is adopted to obtain the crest voltage of Switching Power Supply, the maximum surge current of Test Switchboard electric capacity is carried out again by this crest voltage, visible, the Switching Power Supply surge current proving installation that the utility model provides guarantees that the input voltage of Switching Power Supply is equivalent to the peak value maximum voltage of target input voltage, the sinusoidal wave maximum peak voltage of test needed for maximum surge current is directly provided, and then test obtains maximum surge current, result is accurate, and structure is simple and cost is low.
Corresponding with said apparatus embodiment, the utility model additionally provides a kind of Switching Power Supply surge current test macro, and this system comprises above-mentioned Switching Power Supply surge current proving installation.
Introduction for the Switching Power Supply surge current proving installation in this system please refer to said apparatus embodiment, and the utility model does not repeat them here.
A kind of Switching Power Supply surge current test macro that the utility model provides, the storage of voltage stabilizing storage capacitor is adopted to obtain the crest voltage of Switching Power Supply, the maximum surge current of Test Switchboard electric capacity is carried out again by this crest voltage, visible, the Switching Power Supply surge current proving installation that the utility model provides guarantees that the input voltage of Switching Power Supply is equivalent to the peak value maximum voltage of target input voltage, the sinusoidal wave maximum peak voltage of test needed for maximum surge current is directly provided, and then test obtains maximum surge current, result is accurate, and structure is simple and cost is low.
In this manual, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
Professional can also recognize further, in conjunction with unit and the algorithm steps of each example of embodiment disclosed herein description, can realize with electronic hardware, computer software or the combination of the two, in order to the interchangeability of hardware and software is clearly described, generally describe composition and the step of each example in the above description according to function.These functions perform with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.Professional and technical personnel can use distinct methods to realize described function to each specifically should being used for, but this realization should not thought and exceeds scope of the present utility model.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (6)
1. a Switching Power Supply surge current proving installation, is characterized in that, comprises input terminal, fairing, voltage stabilizing storage capacitor, switch and lead-out terminal, wherein:
Described input terminal is connected with the input end of described fairing, and the target input voltage U for alternating current source foundation Switching Power Supply by described input terminal for described fairing provides crest voltage is
alternating current;
The output terminal of described fairing is in parallel with described voltage stabilizing storage capacitor, and described fairing carries out rectification to described alternating current, and exporting direct current is the charging of described voltage stabilizing storage capacitor;
Described voltage stabilizing storage capacitor is connected with described lead-out terminal by described switch, after described voltage stabilizing storage capacitor is full of, when switch closes by described lead-out terminal for described Switching Power Supply provides described crest voltage, to measure the surge current of described Switching Power Supply.
2. Switching Power Supply surge current proving installation as claimed in claim 1, it is characterized in that, this device also comprises:
Be arranged on the power meter on described input terminal.
3. Switching Power Supply surge current proving installation as claimed in claim 1, it is characterized in that, described fairing is H4 bridge type fairing.
4. Switching Power Supply surge current proving installation as claimed in claim 1, it is characterized in that, the number of described voltage stabilizing storage capacitor is 1.
5. Switching Power Supply surge current proving installation as claimed in claim 1, it is characterized in that, the number of described voltage stabilizing storage capacitor is 5.
6. a Switching Power Supply surge current test macro, is characterized in that, this system comprises the Switching Power Supply surge current proving installation as described in any one of claim 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520899701.3U CN205157631U (en) | 2015-11-12 | 2015-11-12 | Switching power supply surge current testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520899701.3U CN205157631U (en) | 2015-11-12 | 2015-11-12 | Switching power supply surge current testing arrangement |
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| CN205157631U true CN205157631U (en) | 2016-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520899701.3U Active CN205157631U (en) | 2015-11-12 | 2015-11-12 | Switching power supply surge current testing arrangement |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106405200A (en) * | 2016-08-31 | 2017-02-15 | 四川升华电源科技有限公司 | Peak current detection method, device and switching power source |
| CN107069913A (en) * | 2017-05-08 | 2017-08-18 | 上海传英信息技术有限公司 | Charge control method, user terminal and charger |
-
2015
- 2015-11-12 CN CN201520899701.3U patent/CN205157631U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106405200A (en) * | 2016-08-31 | 2017-02-15 | 四川升华电源科技有限公司 | Peak current detection method, device and switching power source |
| CN107069913A (en) * | 2017-05-08 | 2017-08-18 | 上海传英信息技术有限公司 | Charge control method, user terminal and charger |
| CN107069913B (en) * | 2017-05-08 | 2021-09-28 | 上海传英信息技术有限公司 | Charging control method, user terminal and charger |
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Address after: 518000 1st floor to 5th floor, building 1, No. 4023, Wuhe Avenue, Gangtou community, Bantian street, Longgang District, Shenzhen City, Guangdong Province Patentee after: Shenzhen kangguan Technology Co., Ltd Address before: 518000, Longgang District, Guangdong City, Buji province Shenzhen Village No. five and 1 North Avenue, workshop 1, A District, 2 B District Patentee before: Shenzhen KTC Computer Technology Co., Ltd. |