CN1357809A - Power source unit unblocking method - Google Patents
Power source unit unblocking method Download PDFInfo
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- CN1357809A CN1357809A CN 00134865 CN00134865A CN1357809A CN 1357809 A CN1357809 A CN 1357809A CN 00134865 CN00134865 CN 00134865 CN 00134865 A CN00134865 A CN 00134865A CN 1357809 A CN1357809 A CN 1357809A
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- supply unit
- control signal
- power control
- power source
- power
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Abstract
The present invention is power source unit unblocking method. One power source managing button on the panel of the computer is used to unblocking the power unit, and may be used to change over in work/rest state. The method of the present invention is to utilize the output voltage value and power source control signal of the power source unit to judge the state of power source unit, work state, rest state or blocking state, and thus to make the power source unit converted to one of the said states according to the user starting power source control button.
Description
The relevant a kind of power source unit unblocking method of the present invention, it exists in feature, can remove the blocking (latch mode) of supply unit by the power management button on the register face, carries out the switching of work/dormant state simultaneously.
Generally our used electrical equipment all uses and exchanges (AC) power supply, and its fixed-frequency is 60 hertz, and rated voltage then is 110 volts, and this is called effectively (RMS) value; Yet concerning most electronic installation, then must under direct current (DC) power supply, can operate, and the needed voltage of different electronic installations may be different, therefore general way is converted to required direct supply for utilizing transformer and rectification circuit with 110 volts, 60 hertz AC power.
With personal computer (PC), it utilizes supply unit to convert employed 5～12 volt DC power supplys of computer module such as comprising motherboard, hard disk, CD, floppy disk to from 110 volt AC power that exchange power supply network, therefore, the good and the bad of power supply is very big to the speed and the stability influence of personal computer.
Wherein, a perfect supply unit must comprise following four basic functions: 1. voltage transitions: use transformer that 110 volt AC (AC) power supply of input end is boosted or be depressurized to required standard; 2. rectification: will have the voltage of interchange (AC) power source conversion of positive-negative polarity, to obtain pulsating direct current (DC) power supply to constant polarity; 3. filtering: that is the process of a smoothing becomes the pulse wave direct supply of rectification into a level and smooth direct supply; 4. voltage stabilizing (regulation): when input voltage and load current change, make the out-put supply of supply unit still can keep a constant magnitude of voltage.
Present supply unit has superpotential and low-voltage protection function usually; wherein; when supply unit possesses when the low-voltage protection function is arranged; when the AC supply voltage of the AC interruptions of input end or input end on the low side; when causing input current to rise; can automatically switch enters blocking, to prevent current overload supply unit inner member or load-side element is damaged.Yet; when traditional low-voltage protection function is the short time under-voltage that voltage instability caused of normal shutdown or AC power if also can't being distinguished; when be that the circuit that input end connected breaks down or short circuit; therefore; the voltage instability or the normal shutdown that comprise AC power all might start the low-voltage protection function; this kind low-voltage protection mode not only can't provide the fault detect of inlet circuit; after more causing the user must wait for that the low-voltage protection function automatically terminates; or with after the manual mode releasing low-voltage protection function; can start computing machine etc. once more, therefore bring inconvenience.
In view of this, fundamental purpose of the present invention is to provide a kind of power source unit unblocking method, can be on the low side in the AC supply voltage of the AC interruptions of input end or input end, when causing supply unit to automatically switch into blocking, after the voltage of fault eliminating or AC power recovers, can remove the blocking of supply unit by the former power management button in order to switch operating/dormant state on the register face, make supply unit recover operate as normal.
Power source unit unblocking method disclosed in this invention, mainly utilize an output voltage values and a power control signal of supply unit, judge that supply unit is in running order at present, dormant state or blocking, thereby further understand purpose that the user starts the power management button make supply unit enter dormant state by duty, return to duty by dormant state or by blocking in remove, carry out corresponding action at last.
Relevant detailed content of the present invention and technology, conjunction with figs. is described as follows:
Figure 1A is the process flow diagram of power source unit unblocking method of the present invention; And
Figure 1B is the process flow diagram of power source unit unblocking method of the present invention.
See also " Figure 1A, 1B ", for realizing the process flow diagram of power source unit unblocking method disclosed in this invention.At first, when the user started the power management button, the power management button can be sent an enabling signal to computer main frame panel, started this power supply blocking method; After the power supply blocking method started, the first step obtained an output voltage values and a power control signal (step 101) of supply unit earlier; Wherein, power control signal is the signal that motherboard control supply unit carries out electric power starting and shutoff, when power control signal when opening, represent that present motherboard assigns an instruction of opening to supply unit, otherwise then current motherboard is assigned an instruction of turn-offing to supply unit; Secondly, whether the output voltage values of differentiation supply unit is lower than the stable voltage (step 102) under the normal operating conditions; When the output voltage values of supply unit was lower than stable voltage under the normal operating conditions, the expression supply unit may be in dormant state (sleep mode) or blocking at present, and judge that whether power control signal is for opening (step 103) this moment again; In power control signal when opening, the expression motherboard is assigned an instruction of opening to supply unit, but the output voltage values of supply unit does not reach the stable voltage under the normal operating conditions, as seen supply unit is in blocking at present, and the user starts the purpose of power management button at the blocking of removing supply unit, therefore, power control signal changed be made as the pass, to reset (reset) supply unit (step 104); At last, once more power control signal is made as out, so that supply unit returns to duty (step 105); On the other hand, when power control signal is the pass, by motherboard supply unit is assigned an instruction of turn-offing, and the output voltage values of supply unit is lower than the phenomenon of the stable voltage under the normal operating conditions, at present supply unit is in dormant state as can be known, and the purpose that the user starts the power management button should be at the breaking dormancy state, therefore, power control signal changed be made as out, so that supply unit returns to duty (step 105).
If when the output voltage values of supply unit equaled stable voltage under the normal operating conditions, the expression supply unit should be in running order, judge that whether power control signal is for opening (step 201) this moment again; If power control signal is when opening, can determine that then supply unit is in running order, and the purpose that the user starts the power management button enters dormant state at drive electric power unit, therefore power control signal is changed to be made as the pass, so that supply unit enters dormant state (step 202); Otherwise, if power control signal is when closing, that is motherboard assigns an instruction of turn-offing to supply unit, but the output voltage values of supply unit is the stable voltage under the normal operating conditions, therefore judge to belong to abnormality this moment, and send a caution signal (step 203); Wherein, caution signal can sound or visual mode present, take the necessary measures in order to inform the user.
Though the present invention with a preferred embodiment openly as above; right its is not that those skilled in the art are not in breaking away from design of the present invention and scope in order to qualification the present invention; can change and variation, so protection scope of the present invention is by being as the criterion that the accompanying Claim book is limited.
Claims (8)
1. power source unit unblocking method utilizes a power management button on the register face to remove the blocking of supply unit, and its step comprises:
Obtain the output voltage values and the power control signal of supply unit;
When this output voltage values is lower than a stable voltage and this power control signal when opening, this power control signal is changed be made as the pass, to reset supply unit; And
This power control signal is made as out, so that supply unit returns to duty.
2. the method for claim 1 wherein also comprises:
When this output voltage values is lower than a stable voltage and this power control signal when closing, this power control signal is changed be made as out, so that supply unit returns to duty.
3. the method for claim 1 wherein also comprises:
When this output voltage values is positioned at stable voltage and this power control signal when closing, send caution signal.
4. the method for claim 1 wherein also comprises:
When this output voltage values is positioned at a stable voltage and this power control signal when opening, this power control signal is changed be made as the pass, so that supply unit switches to dormant state.
5. the method for claim 1, wherein this power control signal is delivered to supply unit by motherboard, carries out electric power starting and shutoff in order to the control supply unit.
6. the method for claim 1, wherein this burning voltage is the output voltage values of supply unit under normal operating conditions.
7. the method for claim 1, wherein this caution signal is an acoustic signals.
8. the method for claim 1, wherein this caution signal is an optical signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001348655A CN1139018C (en) | 2000-12-05 | 2000-12-05 | Power source unit unblocking method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001348655A CN1139018C (en) | 2000-12-05 | 2000-12-05 | Power source unit unblocking method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1357809A true CN1357809A (en) | 2002-07-10 |
| CN1139018C CN1139018C (en) | 2004-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001348655A Expired - Fee Related CN1139018C (en) | 2000-12-05 | 2000-12-05 | Power source unit unblocking method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1139018C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100362451C (en) * | 2005-05-27 | 2008-01-16 | 佛山市顺德区顺达电脑厂有限公司 | User operation block device and method |
| CN100362452C (en) * | 2005-05-27 | 2008-01-16 | 佛山市顺德区顺达电脑厂有限公司 | User operation blocking device and method |
| CN100414643C (en) * | 2004-01-15 | 2008-08-27 | 威达电股份有限公司 | Power supply start reset release device and method |
| CN100419621C (en) * | 2004-05-03 | 2008-09-17 | Lg电子株式会社 | Apparatus and method for preventing data copy by cardbus devices |
| CN100444490C (en) * | 2005-07-11 | 2008-12-17 | 佛山市顺德区顺达电脑厂有限公司 | Operation blocker and blocking method for user |
| CN109144219A (en) * | 2018-08-17 | 2019-01-04 | 苏州易德龙科技股份有限公司 | The method for cooperating power down delay to realize low-voltage variation unlock |
-
2000
- 2000-12-05 CN CNB001348655A patent/CN1139018C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100414643C (en) * | 2004-01-15 | 2008-08-27 | 威达电股份有限公司 | Power supply start reset release device and method |
| CN100419621C (en) * | 2004-05-03 | 2008-09-17 | Lg电子株式会社 | Apparatus and method for preventing data copy by cardbus devices |
| CN100362451C (en) * | 2005-05-27 | 2008-01-16 | 佛山市顺德区顺达电脑厂有限公司 | User operation block device and method |
| CN100362452C (en) * | 2005-05-27 | 2008-01-16 | 佛山市顺德区顺达电脑厂有限公司 | User operation blocking device and method |
| CN100444490C (en) * | 2005-07-11 | 2008-12-17 | 佛山市顺德区顺达电脑厂有限公司 | Operation blocker and blocking method for user |
| CN109144219A (en) * | 2018-08-17 | 2019-01-04 | 苏州易德龙科技股份有限公司 | The method for cooperating power down delay to realize low-voltage variation unlock |
| CN109144219B (en) * | 2018-08-17 | 2021-08-27 | 苏州易德龙科技股份有限公司 | Method for realizing low-voltage protection unlocking by matching with power failure delay |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1139018C (en) | 2004-02-18 |
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Granted publication date: 20040218 Termination date: 20151205 |
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| EXPY | Termination of patent right or utility model |