CN200996991Y - Switch power-supply tester - Google Patents
Switch power-supply tester Download PDFInfo
- Publication number
- CN200996991Y CN200996991Y CN 200720002670 CN200720002670U CN200996991Y CN 200996991 Y CN200996991 Y CN 200996991Y CN 200720002670 CN200720002670 CN 200720002670 CN 200720002670 U CN200720002670 U CN 200720002670U CN 200996991 Y CN200996991 Y CN 200996991Y
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- power supply
- switching power
- proving installation
- socket
- resistance
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Abstract
A switching supply test device comprises a DC input socket. The artificial load branch circuit is leaded out from the port between the DC input socket and the output end of the switching supply. The test device is characterized in that the artificial load branch circuit is composed of various load resistances which are connected to the switcher. The parallel connection is available between the DC voltmeter and the artificial load branch circuit. A start-up resistance branch circuit is leaded out from the port by and between the DC input socket and PS_ON control port of the switching supply to be tested. Such start-up resistance branch circuit is composed of a logic state switch and a start-up ohmic connection.
Description
Technical field
The utility model relates to the device of a kind of Test Switchboard power supply underloading and fully loaded output state, relate in particular to a kind of can control switching PS_ON end logic state and each output group is light, the proving installation of output voltage when full load condition and this state of demonstration.
Background technology
At present, the detection of known performance parameter to Switching Power Supply, part enterprise adopts and extracts sample and deliver the testing agency of country's specialty and test with the checkout equipment of specialty, and carries out the batch use according to sample results; And quite a few enterprise carries out simple outward appearance for the self testing report of saving testing cost and not inspecting, only relying on Switching Power Supply supplier by ready samples and provide and the energising voltage tester just courageously uses, use the back to find certain group output power deficiency, spread of voltage has but caused irremediable loss when causing equipment to crash.Output voltage does not have a kind of simple and easy to do proving installation on whether being stabilized in the claimed range when, full load condition light to each output group of Switching Power Supply and this state; Particularly a kind of Switching Power Supply with PS_ON steering logic, even energized and a kind of device of not changing PS_ON end logic state goes to change its logic state, this power supply then is in stand-by state and not output, more can't export other performance tests of group.
The utility model content
In order to solve the above mentioned condition that Switching Power Supply is tested, satisfying provides a kind of device to go to change its logic state to test to the Switching Power Supply with PS_ON steering logic, the utility model provides a kind of proving installation that is simple and easy to make, this device can not only change PS_ON end logic state easily, and can control light, the full load condition of each output group, output power and change in voltage situation when test is respectively organized different conditions easily.
The technical scheme that its technical matters that solves the utility model adopts is: a kind of Switching Power Supply proving installation, comprise a DC input socket, draw fictitious load branch road and starting resistance branch road respectively from the port that the DC input socket is connected with Switching Power Supply output terminal, PS_ON control end, wherein: fictitious load props up the route switch and connects different pull-up resistors, and D.C. voltmeter in parallel; Starting resistance props up route logic state switch and starting resistance connects to form.
Further, the simulation test branch road of many parallel connections can be set in this Switching Power Supply proving installation, to realize each output of Switching Power Supply is organized the test of different output states.
Further, this Switching Power Supply proving installation can also comprise the AC accessory power outlet that a supply socket connects, so that tested Switching Power Supply abnormal type, that need to change ability input AC electricity through external socket is powered.
General, this Switching Power Supply proving installation is installed in the aluminum alloy plate materials shell; Above-mentioned logic state switch is a self-lock of button switch; D.C. voltmeter uses the voltage table of pointer-type usually; Above-mentioned pull-up resistor comprises underloading resistance and fully loaded resistance, and wherein fully loaded resistance is composed in parallel by a high-power adjustable resistance or many fixed value resistances.
Switching Power Supply proving installation of the present utility model should place the switch original position of each fictitious load branch road unloaded position before use, avoids occurring overload situations.After connecting with tested Switching Power Supply DC output terminal, press the logic state switch, change PS_ON end logic state by starting resistance, make PS_ON end logic state change startup over to by waiting for, tested Switching Power Supply is started working, each output group begins that output is arranged, D.C. voltmeter magnitude of voltage indication this moment: if the output state during each output group underloading of Test Switchboard power supply, before pressing the logic state switch, each switch is placed the underloading position, press the logic state switch this moment again, observe the indication of each voltage table, whether work is normal during tested as can be known Switching Power Supply underloading; If the output state of each output group full load of Test Switchboard power supply then earlier places fully loaded position with each switch, press the logic state switch this moment again, observes each voltage table indication, and whether the work of tested as can be known Switching Power Supply full load is normal; If Test Switchboard power supply list group output state, then the switch of the fictitious load branch road that will be connected with all the other each output groups earlier places the idle position, press the logic state switch again, observe the indication of the fictitious load branch voltage table that is connected with this group, whether tested as can be known Switching Power Supply works normal at this moment.By above flexible and changeable test mode and easy operation, can be effectively the duty and the output situation of Switching Power Supply be judged, reach the simple and easy to do test of carrying out Switching Power Supply.
Switch test device of the present utility model by switch by the different gears of conversion, connect different pull-up resistors (underloading resistance or fully loaded resistance) and realize test, and the magnitude of voltage when showing its different conditions by its voltage table in parallel to the different output states of tested Switching Power Supply; Simultaneously to having the tested Switching Power Supply of PS_ON control function, the DC input socket inserts the logic state switch with the PS_ON control end in proving installation, change the logic state of PS_ON end again by the starting resistance of its connection, to start or stop the duty of tested Switching Power Supply; To the need of abnormal type through the external socket conversion could the input AC electricity tested Switching Power Supply, the AC accessory power outlet that can connect power (referring to Fig. 1) also by the supply socket of this device.This device can easily change Switching Power Supply PS_ON end logic state, such power supply needn't be triggered by other specialized equipments can carry out the test of its output group state, simply change by switch simultaneously, can carry out the difference test of each output group sky, light, full load condition, only adopt resistance, on-off element, common connector in the circuit, simple in structure, be easy to make.
Description of drawings
Fig. 1 is the structured flowchart of the utility model switch test device.
Fig. 2 is circuit theory diagrams of the present utility model.
Among the figure:
1---supply socket 2---AC accessory power outlet
3,4---DC input socket 5---5V D.C. voltmeter
6---10V D.C. voltmeter 7---15V D.C. voltmeter
8---10V D.C. voltmeter 9---Al-alloy metal shell
10---input, accessory power outlet be the single face pcb board fixedly
SW2---PS_ON end logic state self-lock of button switch
SW3---+3.3V output group state manual change-over switch
SW4---+5V output group state manual change-over switch
SW5---+12V output group state manual change-over switch
SW6---+5VSB output group state manual change-over switch
R---pull- up resistor 10W, 10 parallel connections of 2 Ohmages
R2---pull- up resistor 10W, 1 of 6.8 Ohmage
R3---pull- up resistor 15W, 5 parallel connections of 2 Ohmages
R4---pull- up resistor 10W, 1 of 5.1 Ohmage
R5---pull- up resistor 15W, 1 of 12 Ohmage
R6---pull-up resistor 5W, 1 of 62 Ohmage
R7---pull- up resistor 10W, 1 of 5.6 Ohmage
R8---1/4W, 1 of 10 ohm of starting resistance
Embodiment
Below in conjunction with accompanying drawing, the utility model is further specified by embodiment.
An instantiation of the present utility model as shown in Figure 2, the single phase poaer supply socket 1 of belt switch SW1 and Insurance Block is connected with AC accessory power outlet 2, DC input socket 3,4 each the end respectively with corresponding manual change-over switch SW3, SW4, SW5, SW6 and pointer direct current voltage table 5,6,7, an end of 8 connects, the switch other end respectively with pull-up resistor R1, R2, R3, R4, R5, R6, the end of R7 connects, the other end ground connection of pull-up resistor and D.C. voltmeter, the PS_ON end links to each other with starting resistance R8 one end by self-lock of button switch SW 2, and the starting resistance R8 other end is connected with ground.Use 2.5 square millimeters of annealed copper wires to be electrically connected between supply socket 1 and the AC input socket 2, be electrically connected between DC input socket and D.C. voltmeter and self-lock of button switch SW 2 and starting resistance R8 and use 0.75 square millimeter of annealed copper wire, is electrically connected between DC input socket and switch and pull-up resistor R1, R3, R5, R7 2.5 square millimeters of annealed copper wires of use, with pull-up resistor R2, R4, R6 between be electrically connected 1.5 square millimeters of annealed copper wires of use.
Output group sky, underloading, fully loaded three kinds of states just can be realized State Control by a switch.During use, the proving installation socket is connected with the measured switch supply socket, ac power cable is inserted supply socket 1, this moment, switch SW 1 was in off-state, self-lock of button switch SW 2 is in stand-by state, manual change-over switch SW3, SW4, SW5, SW6 are in light condition, and tested power supply does not have imports also no-output; This moment is with the SW1 closure, the measured switch power supply since the input of power supply its+5VSB starts working, its voltage table 8 shows output voltage numerical value, simultaneously because the not variation of PS_ON end logic state, all the other output group no-outputs of tested power supply are in stand-by state, corresponding voltage table 5,6,7 do not have indication then this tested power ps _ ON of proof to wait for function normal; If tested power supply does not possess this function or this dysfunction, then each output group voltage table is in tested power supply energising display voltage output simultaneously.
Test finishes after the PS_ON function, can be with manual change-over switch SW3, SW4, SW5 pulls the underloading position, then self-lock of button switch SW 2 is pressed, this moment, starting resistance R8 was pulled down to the PS_ON terminal voltage below the 0.3V, logic state changes, tested power initiation, enter duty by stand-by state, each output group begins output, corresponding voltage table 5,6,7 show output voltage numerical value this moment, the corresponding voltage table did not show or showed that numerical value is incorrect if certain group light condition (does not start or high output) then unusually this moment, can carry out tested power supply underloading output state function thus and differentiate, the ratio of operating voltage and output current when the numerical value of underloading resistance equals tested power supply design underloading output.
Underloading output test finishes the back if carry out full load test, need earlier self-lock of button switch SW 2 to be resetted, then with manual change-over switch SW3, SW4, SW5, SW6 pulls fully loaded position, again self-lock of button switch SW 2 is pressed, this moment, the PS_ON terminal voltage was pulled down to below the 0.3V, tested power supply enters duty by stand-by state, each output group begins output, corresponding voltage table 5,6,7 show output voltage numerical value this moment, this moment if certain group abnormal state (do not start or low output) then the corresponding voltage table do not show or show that numerical value is incorrect, can carry out tested power supply thus and be fully loaded with the differentiation of output state function, the ratio of operating voltage and output current when the numerical value of fully loaded resistance equals fully loaded output of tested power supply design.Because power of fully loaded resistance big (requiring greater than this group output rating) and resistance are less, can adopt many parallel connections (if adopting a high-power adjustable resistance then can conveniently carry out the test of different output power).Help the heat radiation of device when carrying out full load test owing to the bigger use metal shell of resistance heating.
In addition, by adjusting the position of each output group state manual change-over switch SW3, SW4, SW5, SW6, the simple and easy to do test to Switching Power Supply is accomplished in the also convertible test of carrying out the different conditions of single group or many group outputs.
Although disclose embodiment of the present utility model and accompanying drawing for the purpose of illustration, but it will be appreciated by those skilled in the art that: in the spirit and scope that do not break away from the utility model and appended claim, various replacements, variation and modification all are possible, therefore, scope of the present utility model is not limited to embodiment and the disclosed content of accompanying drawing.
Claims (7)
1. Switching Power Supply proving installation, comprise a DC input socket, draw the fictitious load branch road from the port that the DC input socket is connected with the Switching Power Supply output terminal, it is characterized in that: described fictitious load props up the route switch and connects different pull-up resistor compositions, and D.C. voltmeter is in parallel with this fictitious load branch road; Draw a starting resistance branch road from the port that the DC input socket is connected with the PS_ON control end of tested Switching Power Supply, connect to form by logic state switch and starting resistance.
2. Switching Power Supply proving installation as claimed in claim 1 is characterized in that, described logic state switch is a self-lock of button switch.
3. Switching Power Supply proving installation as claimed in claim 1 is characterized in that, described D.C. voltmeter is the D.C. voltmeter of pointer-type.
4. Switching Power Supply proving installation as claimed in claim 1 is characterized in that, described pull-up resistor comprises underloading resistance and fully loaded resistance, and wherein fully loaded resistance is composed in parallel by a high-power adjustable resistance or many fixed value resistances.
5. as the described Switching Power Supply proving installation of each claim in the claim 1～4, it is characterized in that, draw the fictitious load branch road of many parallel connections, respectively each output group of corresponding Switching Power Supply from the DC input socket.
6. as the described Switching Power Supply proving installation of each claim in the claim 1～4, it is characterized in that, this Switching Power Supply proving installation also comprises a supply socket and an AC accessory power outlet, the two is electrically connected, and need are powered through the tested Switching Power Supply of external socket conversion ability input AC electricity.
7. Switching Power Supply proving installation as claimed in claim 5, it is characterized in that, this Switching Power Supply proving installation also comprises a supply socket and an AC accessory power outlet, and the two is electrically connected, and need are powered through the tested Switching Power Supply of external socket conversion ability input AC electricity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720002670 CN200996991Y (en) | 2007-01-26 | 2007-01-26 | Switch power-supply tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720002670 CN200996991Y (en) | 2007-01-26 | 2007-01-26 | Switch power-supply tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200996991Y true CN200996991Y (en) | 2007-12-26 |
Family
ID=38995426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200720002670 Expired - Fee Related CN200996991Y (en) | 2007-01-26 | 2007-01-26 | Switch power-supply tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200996991Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101566674B (en) * | 2008-04-24 | 2011-02-02 | 中芯国际集成电路制造(上海)有限公司 | Radio-frequency power supply testing device |
| CN102401847A (en) * | 2010-09-14 | 2012-04-04 | 鸿富锦精密工业（深圳）有限公司 | Load device for testing |
| CN103744031A (en) * | 2013-12-13 | 2014-04-23 | 珠海瑞捷电气有限公司 | Power supply detection apparatus |
| CN104237581A (en) * | 2013-06-14 | 2014-12-24 | 泰豪科技(深圳)电力技术有限公司 | Detection device for electronic components in medium and low-voltage equipment |
| CN105891704A (en) * | 2014-05-05 | 2016-08-24 | 惠州市德赛西威汽车电子股份有限公司 | Gear detection circuit of heavy-current switch |
| CN105911483A (en) * | 2016-04-18 | 2016-08-31 | 北京小米移动软件有限公司 | Power chip testing device and method |
| CN107449940A (en) * | 2016-04-08 | 2017-12-08 | Abb瑞士有限公司 | Test block with the input of RJ45 types and accessory power outlet |
| CN108254701A (en) * | 2017-12-25 | 2018-07-06 | 南通同洲电子有限责任公司 | One kind can test Switching Power Supply |
| CN109738831A (en) * | 2018-12-04 | 2019-05-10 | 广州市扬新技术研究有限责任公司 | A kind of electrical two self-locking station pressure-adjusting type Switching Power Supply wiring board detection circuits of band |
| CN110146829A (en) * | 2019-06-03 | 2019-08-20 | 山东华泰纸业股份有限公司 | A kind of direct-current switch power supply fault diagnosis easily-testing instrument and test method |
| CN113740653A (en) * | 2021-09-08 | 2021-12-03 | 无锡力芯微电子股份有限公司 | High-precision evaluation method and circuit suitable for LDO dynamic load response |
-
2007
- 2007-01-26 CN CN 200720002670 patent/CN200996991Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101566674B (en) * | 2008-04-24 | 2011-02-02 | 中芯国际集成电路制造(上海)有限公司 | Radio-frequency power supply testing device |
| CN102401847A (en) * | 2010-09-14 | 2012-04-04 | 鸿富锦精密工业（深圳）有限公司 | Load device for testing |
| CN104237581A (en) * | 2013-06-14 | 2014-12-24 | 泰豪科技(深圳)电力技术有限公司 | Detection device for electronic components in medium and low-voltage equipment |
| CN103744031B (en) * | 2013-12-13 | 2017-01-11 | 珠海瑞捷电气股份有限公司 | Power supply detection apparatus |
| CN103744031A (en) * | 2013-12-13 | 2014-04-23 | 珠海瑞捷电气有限公司 | Power supply detection apparatus |
| CN105891704A (en) * | 2014-05-05 | 2016-08-24 | 惠州市德赛西威汽车电子股份有限公司 | Gear detection circuit of heavy-current switch |
| CN107449940A (en) * | 2016-04-08 | 2017-12-08 | Abb瑞士有限公司 | Test block with the input of RJ45 types and accessory power outlet |
| CN105911483A (en) * | 2016-04-18 | 2016-08-31 | 北京小米移动软件有限公司 | Power chip testing device and method |
| CN108254701A (en) * | 2017-12-25 | 2018-07-06 | 南通同洲电子有限责任公司 | One kind can test Switching Power Supply |
| CN109738831A (en) * | 2018-12-04 | 2019-05-10 | 广州市扬新技术研究有限责任公司 | A kind of electrical two self-locking station pressure-adjusting type Switching Power Supply wiring board detection circuits of band |
| CN110146829A (en) * | 2019-06-03 | 2019-08-20 | 山东华泰纸业股份有限公司 | A kind of direct-current switch power supply fault diagnosis easily-testing instrument and test method |
| CN113740653A (en) * | 2021-09-08 | 2021-12-03 | 无锡力芯微电子股份有限公司 | High-precision evaluation method and circuit suitable for LDO dynamic load response |
| CN113740653B (en) * | 2021-09-08 | 2022-07-29 | 无锡力芯微电子股份有限公司 | High-precision evaluation method and circuit suitable for LDO dynamic load response |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071226 Termination date: 20150126 |
|
| EXPY | Termination of patent right or utility model |