CN102830368A - Electronic loading machine for detecting PC (personal computer) power supply - Google Patents
Electronic loading machine for detecting PC (personal computer) power supply Download PDFInfo
- Publication number
- CN102830368A CN102830368A CN2012102291939A CN201210229193A CN102830368A CN 102830368 A CN102830368 A CN 102830368A CN 2012102291939 A CN2012102291939 A CN 2012102291939A CN 201210229193 A CN201210229193 A CN 201210229193A CN 102830368 A CN102830368 A CN 102830368A
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- China
- Prior art keywords
- power supply
- wire casing
- electronic load
- shop
- load machine
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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
- G01R31/40—Testing power supplies
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
- G01R19/16538—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/175—Indicating the instants of passage of current or voltage through a given value, e.g. passage through zero
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electric Clocks (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention discloses an electronic loading machine for detecting a PC (personal computer) power supply. A phase transformer for detecting delay time of a PG (power good) signal of the power supply is arranged inside the electronic loading machine. The phase transformer is arranged inside the electronic loading machine, so that a zero crossing point of the current is grasped through the phase transformer, and timing is started when the phase is zero, so that the delay time of the P.G signal of the power supply is accurately measured, that is, whether the power supply is compatible with a main board of a PC can be detected, and whether the delay time of the power supply for emitting the P.G signal is matched with the time of the main board for receiving the P.G signal can be detected.
Description
Technical field
The present invention relates to power supply and make the field, in particular, relate to a kind of electronic load machine that is used to detect PC power source.
Background technology
The electronic load machine is to the multifunction electronic load instrument of various S.P.S. (change type power supply unit) design, offers production division specially, and inspection department or developing department use.The load (electrical appliance) of electronic load machine in can simulation true environment detects the quality of power supply.Its function is quite a lot of, comprise can regulating load size, and short circuit, overcurrent, dynamic or the like.The principle of electronic load is control internal power or transistorized conducting amount (amount dutycycle size); Lean on the equipment of the dissipated power consumed power of power tube; It can accurately detect load voltage, accurately adjusts load current, can realize the fictitious load short circuit simultaneously; Fictitious load is the resistive and capacitive of perception, the capacitive load currents rise time.
PC power source is output voltage not only, also will signal contact be arranged with mainboard, and both have certain relation on chronological order, and this just is called sequential.Sequential is the essential condition of power supply and mainboard good fit, also is to cause the computer can't the normal switch machine, and power supply and the incompatible common cause of mainboard.
The most important thing is electric power output voltage (usually with+5V is representative) and P.G (output is normal) signal in the sequential, and the relation between the PS_ON# signal.Whether the P.G signal is controlled by power supply, represent power supply to be ready to, and the PS_ON# signal then whether by mainboard control, will start shooting by expression.Two signals all are that the motherboard power supply line through 20 cores connects; The course of work of computer on-off is such: power supply is exported a voltage+5VSB to mainboard after the ac line energising, the few part circuit on the mainboard is started working; And wait for the operation of starting shooting, this is called holding state; When pressing host switch; Mainboard just becomes low level to the PS_ON# signal; Power supply begins to start and produce all output voltages after receiving low level, and in 0.1 ~ 0.5 second after the normal foundation of all output voltages, power supply will become high level to the P.G signal and pass back to mainboard; The expression power supply is ready to, and mainboard begins to start and operation then.
During normal shutdown, mainboard reverts to high level to the PS_ON# signal after accomplishing all power-off operation, all output voltages of power-off and P.G signal, and only reservation+5VSB output, whole main frame returns to holding state again.When abnormal shutdown, mainboard can't provide off signal, and this moment, power supply can detect AC dump, and becomes low level notice mainboard to the P.G signal, and mainboard carries out promptly resetting of hardware at once, can be not impaired with protection hardware.After this situation power notification mainboard outage, at least also to keep the normal output voltage of signa, supply mainboard to reset, otherwise the damage that might make some hardware.
Mainboard receives the P.G signal and sends the P.G signal with power supply and have a time difference problem, suppose that the time that mainboard can receive the P.G signal is 10ms, will not think that power supply does not have the successful or damage of initialization if receive the PG signal after the 10ms.Thereby, need detect the time that power supply sends the P.G signal, be complementary with the mainboard that guarantees its P.G delay of signals and computer.
Summary of the invention
Technical matters to be solved by this invention provides the electronic load machine of a kind of PG signal delay time of detecting PC power source.
The objective of the invention is to realize through following technical scheme: a kind of electronic load machine that is used to detect PC power source is provided with in the said electronic load machine and is used to detect the power supply PG phase transformer of signal delay time.
Preferably, said phase transformer is provided with the radome that is used for shield electromagnetic interference.Through radome is set, avoid phase transformer to receive on the electronic load machine other and have the interference of the assembly of electromagnetic interference source, improve the operating accuracy of phase transformer.
Preferably, said radome is provided with the opening that is used to connect up.So that the connection of circuit.
Preferably, comprise that also one is located at the shop wire casing on the said electronic load machine frame.Utilize the shop wire casing to collect the inner connection line of electronic load machine, can avoid circuit too much to cause confusion.
Preferably, said shop wire casing is the rectangular channel structure, and a side of said shop wire casing is provided with the opening that is used for circuit is put into the shop wire casing, and said opening part is provided with screw, and said link tester is crossed said screw and is enclosed in the wire casing of said shop.On the wire casing of shop, opening is set, and passes through screw, make circuit be limited in spreading in the wire casing, thereby make things convenient for the installation and the maintenance of circuit closure of openings.
Preferably, also be provided with the screw hole that is used for fixing on the wire casing of said shop, said shop wire casing is fixed on the said frame through screw.To spread wire casing through screw and be fixed on the machine frame, and make the laying of circuit be fixed in certain zone.
The present invention is owing to be provided with phase transformer in the electronic load machine; Grasp the zero crossing of electric current through phase transformer; And, phase place picks up counting when being zero; Thereby can measure the P.G delay of signals time of power supply accurately, whether the mainboard that also just can detect power supply and PC is compatible, and promptly whether power supply sends the time that P.G delay of signals time and mainboard can receive the P.G signal and be complementary.
Description of drawings
Fig. 1 is the inner structure sketch of the electronic load machine of the embodiment of the invention,
Fig. 2 is that the secondary and circuit of phase transformer is connected synoptic diagram,
Fig. 3 is the structure diagram of shop wire casing of the electronic load machine of the embodiment of the invention.
Wherein: 100, machine frame, 110, phase transformer, 120, the shop wire casing, 130, heat-dissipating frame, 121, screw hole, 122, screw hole.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment the present invention is described further.
Be illustrated in figure 1 as a specific embodiment that is used to detect the electronic load machine of PC power source of the present invention; It comprises: cabinet 100 and be arranged on a plurality of functional modules in the cabinet; Wherein, comprise in said a plurality of functional module that one is used to detect the phase transformer 110 of PG signal delay time of PC power source.
The P.G signal of test computer power supply; Be to pick up counting from the moment that power supply is switched on; Detect then always computer power+5V voltage, if+5V voltage output is normal, is the P.G delay of signals time during end; To accurately measure this time delay, then need grasp the energising time of moment.As shown in Figure 2, what phase transformer was secondary is connected with circuit, goes out the pulse signal of same frequency through transformer induction, grasps the zero crossing of electric current, and picks up counting from this zero crossing and to be the P.G delay of signals time.
As shown in Figure 1, phase transformer 110 includes a square radome (among the figure not with numerical reference), and radome is provided with the opening that is used to connect up, so that phase transformer 110 can be connected with other assembly on the electronic load machine.
Each functional module of electronic load machine and connection link thereof are installed in the inside of cabinet 100 respectively; Be horizontally arranged with the heat-dissipating frame 130 of a rectangular shape in the cabinet 100; The functional module with in the electronic load machine of heat-dissipating frame 130 separates respectively; Be the both sides that the interior functional module of electronic load machine is separately positioned on heat-dissipating frame 130, connect through connection line.Heat-dissipating frame 130 is provided with a shop wire casing 120; Shop wire casing 120 is arranged on an end of heat-dissipating frame 130; The connection line of said heat-dissipating frame 130 both sides functional modules is laid in the said shop wire casing 120; Can avoid the inner circuit of electronic load machine at random like this, have influence on the installation of electronic load machine and maintenance from now on.
As shown in Figure 3; Shop wire casing 120 is the rectangular channel structure; One side of shop wire casing 120 is provided with the opening that is used for connection line is put into shop wire casing 120; Said opening part is provided with screw hole 121, and said connection line is enclosed in the said shop wire casing 120 through the said screw that is arranged on the screw hole 121.Shop wire casing 120 is provided with and also is provided for fixed screw holes 122, and shop wire casing 120 directly is fixed on the heat-dissipating frame 110 through screw, thereby can carry out dismounting to shop wire casing 120 easily, also makes things convenient for line set in the wire casing 120 of shop.
Above content is to combine concrete preferred implementation to the further explain that the present invention did, and can not assert that practical implementation of the present invention is confined to these explanations.For the those of ordinary skill of technical field under the present invention, under the prerequisite that does not break away from the present invention's design, can also make some simple deduction or replace, all should be regarded as belonging to protection scope of the present invention.
Claims (7)
1. an electronic load machine that is used to detect PC power source is characterized in that, is provided with in the said electronic load machine to be used to detect the power supply PG phase transformer of signal delay time.
2. a kind of electronic load machine that is used to detect PC power source as claimed in claim 1 is characterized in that said phase transformer is provided with the radome that is used for shield electromagnetic interference.
3. a kind of electronic load machine that is used to detect PC power source as claimed in claim 2 is characterized in that said radome is provided with the opening that is used to connect up.
4. a kind of electronic load machine that is used to detect PC power source as claimed in claim 1 is characterized in that, comprises that also one is located at the shop wire casing on the said electronic load machine frame.
5. a kind of electronic load machine that is used to detect PC power source as claimed in claim 4; It is characterized in that; Said shop wire casing is the rectangular channel structure; One side of said shop wire casing is provided with the opening that is used for circuit is put into the shop wire casing, and said opening part is provided with screw, and said link tester is crossed said screw and is enclosed in the wire casing of said shop.
6. a kind of electronic load machine that is used to detect PC power source as claimed in claim 4 is characterized in that also be provided with the screw hole that is used for fixing on the wire casing of said shop, said shop wire casing is fixed on the said frame through screw.
7. a kind of electronic load machine that is used to detect PC power source of searching like claim 4 Soviet Union is characterized in that said shop wire casing is fixed on the said frame through binding.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102291939A CN102830368A (en) | 2012-07-04 | 2012-07-04 | Electronic loading machine for detecting PC (personal computer) power supply |
| PCT/CN2012/078687 WO2014005356A1 (en) | 2012-07-04 | 2012-07-16 | Electronic load machine for detecting pc power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102291939A CN102830368A (en) | 2012-07-04 | 2012-07-04 | Electronic loading machine for detecting PC (personal computer) power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102830368A true CN102830368A (en) | 2012-12-19 |
Family
ID=47333570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102291939A Pending CN102830368A (en) | 2012-07-04 | 2012-07-04 | Electronic loading machine for detecting PC (personal computer) power supply |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102830368A (en) |
| WO (1) | WO2014005356A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108549009A (en) * | 2018-05-22 | 2018-09-18 | 郑州云海信息技术有限公司 | Solve the not dull method and system of VR power-off sequentials test POWERGOOD signals |
| CN114252800A (en) * | 2022-02-28 | 2022-03-29 | 深圳市暗能量电源有限公司 | Power Good signal control circuit with double-output Power supply and electronic equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5973941A (en) * | 1997-07-17 | 1999-10-26 | Schlumberger Industries, S.A. | Electricity meter with a switching mode transformer power supply circuit |
| CN2870310Y (en) * | 2005-07-30 | 2007-02-14 | 华为技术有限公司 | Machine box |
| CN102004536A (en) * | 2010-09-16 | 2011-04-06 | 孔繁忠 | Mute power supply |
| CN202661616U (en) * | 2012-07-04 | 2013-01-09 | 尚艳燕 | Electronic load machine for detecting PC power supply |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1137388C (en) * | 1999-05-18 | 2004-02-04 | 刘英彰 | DC electronic load simulator |
-
2012
- 2012-07-04 CN CN2012102291939A patent/CN102830368A/en active Pending
- 2012-07-16 WO PCT/CN2012/078687 patent/WO2014005356A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5973941A (en) * | 1997-07-17 | 1999-10-26 | Schlumberger Industries, S.A. | Electricity meter with a switching mode transformer power supply circuit |
| CN2870310Y (en) * | 2005-07-30 | 2007-02-14 | 华为技术有限公司 | Machine box |
| CN102004536A (en) * | 2010-09-16 | 2011-04-06 | 孔繁忠 | Mute power supply |
| CN202661616U (en) * | 2012-07-04 | 2013-01-09 | 尚艳燕 | Electronic load machine for detecting PC power supply |
Non-Patent Citations (1)
| Title |
|---|
| 张晓杰等: "服务器开关电源的可靠性测试", 《仪器仪表学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108549009A (en) * | 2018-05-22 | 2018-09-18 | 郑州云海信息技术有限公司 | Solve the not dull method and system of VR power-off sequentials test POWERGOOD signals |
| CN114252800A (en) * | 2022-02-28 | 2022-03-29 | 深圳市暗能量电源有限公司 | Power Good signal control circuit with double-output Power supply and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014005356A1 (en) | 2014-01-09 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121219 |