CN202661616U - Electronic load machine for detecting PC power supply - Google Patents
Electronic load machine for detecting PC power supply Download PDFInfo
- Publication number
- CN202661616U CN202661616U CN 201220320353 CN201220320353U CN202661616U CN 202661616 U CN202661616 U CN 202661616U CN 201220320353 CN201220320353 CN 201220320353 CN 201220320353 U CN201220320353 U CN 201220320353U CN 202661616 U CN202661616 U CN 202661616U
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- load machine
- wire casing
- power supply
- detection
- signal
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Abstract
The utility model discloses an electronic load machine for detecting PC power supply. The electronic load machine is internally provided with a phase transformer which is used for detecting PG signal delay time of a power supply. As the electronic load machine is internally provided with the phase transformer, voltaic zero crossing points are grabbed by the phase transformer, and timing is started when a phase is zero, delay time of a P.G signal of the power supply can be accurately detected, and then whether the power supply is compatible to a PC main board or not can be detected, or whether the delay time of the P.G signal sent by the power supply is matched with the time that the main board receives the P.G signal or not can be detected.
Description
Technical field
The utility model relates to power supply and makes the field, in particular, relates to a kind of E-load machine for detection of PC power source.
Background technology
E-load machine is for various S.P.S.(change type power supply unit) the multifunction electronic load instrument of design, offer specially production division, inspection department or developing department use.The load (electrical appliance) of E-load machine in can the Reality simulation environment detects the quality of power supply.Its function is quite a lot of, comprise can regulating load size, and short circuit, overcurrent, dynamic etc.The principle of electronic load is control internal power or transistorized conducting amount (amount dutycycle size), consume the equipment of electric energy by the dissipated power of power tube, it can accurately detect load voltage, the accurate adjustment load current, simultaneously can realize the fictitious load short circuit, 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 at chronological order, and this just is called sequential.Sequential is the good fit essential condition of power supply and mainboard, also is to cause the computer can't the normal switch machine, and the incompatible common cause of power supply and mainboard.
The most important thing is in the sequential that electric power output voltage (usually take+5V as representative) is normal with P.G(output) signal, and the relation between the PS_ON# signal.Whether the P.G signal is controlled by power supply, represent power supply and 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 by 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 small 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, 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 be returned to mainboard, the expression power supply is ready to, and then mainboard begins start-up and operation.
During normal shutdown, mainboard reverts to high level to the PS_ON# signal after finishing all power-off operation, all output voltages of power-off and P.G signal, and only reservation+5VSB output, whole main frame returns to again holding state.When abnormal shutdown, mainboard can't provide off signal, and this moment, power supply can detect AC dump, and the P.G signal is become low level notice mainboard, 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, reset for mainboard, 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 to detect the time that power supply sends the P.G signal, be complementary with the delay that guarantees its P.G signal and the mainboard of computer.
The utility model content
Technical problem to be solved in the utility model provides the E-load machine of a kind of PG signal delay time of detecting PC power source.
The purpose of this utility model is achieved through the following technical solutions: a kind of E-load machine for detection of PC power source is provided with for detection of power supply PG the phase transformer of signal delay time in the described E-load machine.
Preferably, be provided with radome for shield electromagnetic interference on the described phase transformer.By radome is set, avoid phase transformer to be subject on the E-load machine other and have the interference of the assembly of electromagnetic interference source, improve the operating accuracy of phase transformer.
Preferably, be provided with on the described radome for the opening that connects up.So that the connection of circuit.
Preferably, comprise that also one is located at the shop wire casing on the described E-load machine frame.Utilize to spread the connection line that wire casing is collected E-load machine inside, can avoid circuit too much to cause confusion.
Preferably, described shop wire casing is rectangular groove structure, and a side of described shop wire casing is provided with the opening that spreads wire casing for circuit is put into, and described opening part is provided with screw, and described link tester is crossed described screw and is enclosed in the wire casing of described shop.Opening is set spreading wire casing, and by screw with closure of openings, make circuit be limited in spreading in the wire casing, thereby make things convenient for installation and the maintenance of circuit.
Preferably, also be provided with on the wire casing of described shop for fixing screw hole, described shop wire casing is screwed on the described frame.To spread wire casing by screw and be fixed on the machine frame, so that the laying of circuit is fixed in certain zone.
The utility model is owing to being provided with phase transformer in E-load machine, zero crossing by phase transformer crawl electric current, and when being zero, phase place begins timing, thereby can measure accurately the time delay of the P.G signal of power supply, whether the mainboard that also just can detect power supply and PC is compatible, and namely power supply sends the time delay of P.G signal and whether time that mainboard can receive the P.G signal is complementary.
Description of drawings
Fig. 1 is the inner structure sketch of the E-load machine of the utility model embodiment,
Fig. 2 is the structure diagram of shop wire casing of the E-load machine of the utility model embodiment.
Wherein: 100, machine frame, 110, phase transformer, 120, spread wire casing, 130, heat-dissipating frame, 121, screw hole, 122, screw hole.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and preferred embodiment.
Be illustrated in figure 1 as a specific embodiment of the E-load machine for detection of PC power source described in the utility model, it comprises: cabinet 100 and be arranged on a plurality of functional modules in the cabinet, wherein, comprise a phase transformer 110 for detection of PG signal delay time of PC power source in described a plurality of functional module.
The P.G signal of test computer power supply, to begin timing from the moment that power supply is switched on, then detect always computer power+5V voltage, if+5V Voltage-output is normal, be the time delay of P.G signal during end, to to carrying out Measurement accuracy this time delay, then need to 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 by transformer induction, grasps the zero crossing of electric current, and begins the time delay that timing is the P.G signal from this zero crossing.
As shown in Figure 1, phase transformer 110 includes a square radome (among the figure not with numerical reference), is provided with the opening for wiring on the radome, so that phase transformer 110 can be connected with other assembly on the E-load machine.
Each functional module of E-load machine and connection link thereof are installed in respectively the inside of cabinet 100, be horizontally arranged with the heat-dissipating frame 130 of a rectangular shape in the cabinet 100, the functional module with in the E-load machine of heat-dissipating frame 130 separates respectively, be the both sides that the interior functional module of E-load machine is separately positioned on heat-dissipating frame 130, connect by connection line.Be provided with one on the heat-dissipating frame 130 and spread wire casing 120, spread the end that wire casing 120 is arranged on heat-dissipating frame 130, the connection line of described heat-dissipating frame 130 both sides functional modules is laid in the described shop wire casing 120, can avoid like this circuit of E-load machine inside at random, have influence on the installation of E-load machine and maintenance from now on.
As shown in Figure 3, spreading wire casing 120 is rectangular groove structure, a side that spreads wire casing 120 is provided with the opening that spreads wire casing 120 for connection line is put into, described opening part is provided with screw hole 121, and described connection line is enclosed in the described shop wire casing 120 by the described screw that is arranged on the screw hole 121.Be provided with on the wire casing 120 of shop and also be provided for fixed screw holes 122, spread wire casing 120 and directly be fixed on the heat-dissipating frame 110 by screw, thereby can carry out dismounting to spreading wire casing 120 easily, also make things convenient for line set in the wire casing 120 of shop.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that implementation of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (7)
1. the E-load machine for detection of PC power source is characterized in that, is provided with the phase transformer of signal delay time for detection of power supply PG in the described E-load machine.
2. a kind of E-load machine for detection of PC power source as claimed in claim 1 is characterized in that, is provided with the radome for shield electromagnetic interference on the described phase transformer.
3. a kind of E-load machine for detection of PC power source as claimed in claim 2 is characterized in that, is provided with the opening for wiring on the described radome.
4. a kind of E-load machine for detection of 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 described E-load machine frame.
5. a kind of E-load machine for detection of PC power source as claimed in claim 4, it is characterized in that, described shop wire casing is rectangular groove structure, one side of described shop wire casing is provided with the opening that spreads wire casing for circuit is put into, described opening part is provided with screw, and described link tester is crossed described screw and is enclosed in the wire casing of described shop.
6. a kind of E-load machine for detection of PC power source as claimed in claim 4 is characterized in that, also is provided with on the wire casing of described shop for fixing screw hole, and described shop wire casing is screwed on the described frame.
7. a kind of E-load machine for detection of PC power source as claimed in claim 4 is characterized in that, described shop wire casing is fixed on the described frame by binding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220320353 CN202661616U (en) | 2012-07-04 | 2012-07-04 | Electronic load machine for detecting PC power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220320353 CN202661616U (en) | 2012-07-04 | 2012-07-04 | Electronic load machine for detecting PC power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202661616U true CN202661616U (en) | 2013-01-09 |
Family
ID=47456514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220320353 Expired - Fee Related CN202661616U (en) | 2012-07-04 | 2012-07-04 | Electronic load machine for detecting PC power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202661616U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102830368A (en) * | 2012-07-04 | 2012-12-19 | 尚艳燕 | Electronic loading machine for detecting PC (personal computer) power supply |
| WO2019223230A1 (en) * | 2018-05-22 | 2019-11-28 | 郑州云海信息技术有限公司 | Method and system for solving non-monotonicity of powergood signal of vr power-down timing test |
-
2012
- 2012-07-04 CN CN 201220320353 patent/CN202661616U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102830368A (en) * | 2012-07-04 | 2012-12-19 | 尚艳燕 | Electronic loading machine for detecting PC (personal computer) power supply |
| WO2014005356A1 (en) * | 2012-07-04 | 2014-01-09 | Shang Yanyan | Electronic load machine for detecting pc power supply |
| WO2019223230A1 (en) * | 2018-05-22 | 2019-11-28 | 郑州云海信息技术有限公司 | Method and system for solving non-monotonicity of powergood signal of vr power-down timing test |
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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: 20130109 Termination date: 20140704 |
|
| EXPY | Termination of patent right or utility model |