CN101339414A - Power management system and method - Google Patents
Power management system and method Download PDFInfo
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- CN101339414A CN101339414A CNA2007100289416A CN200710028941A CN101339414A CN 101339414 A CN101339414 A CN 101339414A CN A2007100289416 A CNA2007100289416 A CN A2007100289416A CN 200710028941 A CN200710028941 A CN 200710028941A CN 101339414 A CN101339414 A CN 101339414A
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Abstract
The present invention provides an electrical source management system and a method thereof for driving a load circuit. The system comprises an electrical source supply module and an electrical source control module. Wherein, the electrical source supply module provides at least a first electrical source and a second electrical source to the load circuit according to a main electrical source and detects voltage levels of the first electrical source and the second electrical source; the electrical source control module which is coupled to the electrical source supply model stops supplying the main electrical source to the electrical source supply module when the voltage level of the first electrical source or the second electrical source is abnormal, thus, the electrical source control module closes the first electrical source and the second electrical source which are provided to the load circuit to prevent the load circuit from being damaged due to the electrical source instability.
Description
Technical field
The present invention is relevant for a kind of power-supply management system and method, and particularly relevant for a kind of power-supply management system and method that a plurality of power supplys are provided.
Background technology
In general electronic installation, the alternating current that its employed power source direct current that normally internal cell provided and Utilities Electric Co. are provided.But the load circuit of electronic installation inside but needs the multi-group power of different voltage quasi positions usually.Therefore, have a power supply module in the present electronic installation,, offer load circuit after being converted to the multi-group power of different voltage quasi positions the alternating current that received or the direct current of battery.
Yet in the circuit actual mechanical process, power supply module is after providing multi-group power to load circuit, and these power supplys may be subjected to the influence of load circuit, makes that the accurate position of power source voltage of part is unusual.For instance, when the load of certain part of load circuit is excessive (when the electric current of the load circuit of for example flowing through rises), descends making to provide, thereby cause the running of circuit not normal, even cause the damage of load circuit to the accurate position of the power source voltage of load.
Summary of the invention
The invention provides a kind of power-supply management system, provide whether unusual, stop to provide primary power in real time, to prevent the damage of load circuit to power supply module to the accurate position of the power source voltage of load circuit by detecting.
The invention provides a kind of method for managing power supply,, can close the power supply that provides to load circuit immediately, with the damage of avoiding load circuit to be caused because of the power supply instability detecting the accurate position of power source voltage when unusual.
The present invention proposes a kind of power-supply management system, and in order to drive a load circuit, this power-supply management system comprises power supply module and energy supply control module.Wherein, power supply module provides at least one first power supply and a second source to load circuit according to a primary power, and detects the voltage quasi position of first power supply and second source.And energy supply control module is coupled to power supply module, and provide primary power to power supply module, when one of them voltage quasi position of first power supply and second source is unusual, energy supply control module is the stop supplies primary power then, allows power supply module close to provide first power supply and second source to load circuit.
In one embodiment of this invention, above-mentioned power supply module comprises first flag and second flag.Wherein, first flag is corresponding to first power supply, and second flag is corresponding to second source.When power supply module detects the accurate position of first power source voltage when unusual, first flag then is set, when the voltage quasi position that detects second source is unusual, second flag is set then.
In one embodiment of this invention, when energy supply control module detect first flag and second flag one of them when being provided with, then the stop supplies primary power is to this power supply module.
In one embodiment of this invention, when power-supply management system started, energy supply control module output one start sequence was to power supply module, and power supply module determines first power supply and second source that the order to load circuit is provided according to the start sequence.
In one embodiment of this invention, above-mentioned power supply module comprises one first output port and one second output port.Wherein, first output port is corresponding to first power supply, and second output port is corresponding to second source.Wherein, energy supply control module is controlled the order of the signal activation on first output port and second output port according to the start sequence.
In one embodiment of this invention, above-mentioned power-supply management system also comprises the handover module that is coupled to first output port and second output port, and this handover module receives first power supply and second source, when the signal activation on first output port, export first power to load circuit, when the signal activation on second output port, the output second source is to this load circuit.
The present invention also proposes a kind of method for managing power supply, comprising: a primary power is provided; According to this primary power, provide first power supply and second source to load circuit; Detect the voltage quasi position of first power supply and second source; When one of them voltage quasi position of first power supply and second source was unusual, the stop supplies primary power was so that first power supply and the second source that provides to load circuit to be provided.
In one embodiment of this invention, the step of the voltage quasi position of above-mentioned detecting first power supply and second source comprises: one first flag and one second flag are provided; Detect the voltage quasi position of first power supply and second source; When detecting the accurate position of first power source voltage when unusual, first flag is set then; When the voltage quasi position that detects second source is unusual, second flag is set then.
In one embodiment of this invention, above-mentioned method for managing power supply also comprises the step of reset first flag and second flag.
In one embodiment of this invention, it is above-mentioned when one of them voltage quasi position of first power supply and second source is unusual, the step of stop supplies primary power, comprise: monitor first flag and this second flag, and when monitoring first flag and second flag when being provided with, the stop supplies primary power is so that first power supply and the second source that provides to load circuit to be provided.
In one embodiment of this invention, above-mentioned first power supply and the second source of providing comprises to the step of this load circuit: according to a start sequence, provide first power supply and second source to load circuit in regular turn, the sequence of wherein starting shooting provides the order to load circuit in order to determine first power supply and second source.
The present invention provides whether unusual to the power supply of load circuit by detecting, closes primary power in real time, stopping primary power to load circuit, and prevents that load circuit from damaging because of power supply is unstable.
For above-mentioned feature and advantage of the present invention can be become apparent, preferred embodiment cited below particularly, and cooperate appended graphicly, be described in detail below.
Description of drawings
Fig. 1 is the power-supply management system calcspar of the embodiment of the invention.
Fig. 2 is the flow chart of steps of the method for managing power supply of the embodiment of the invention.
Embodiment
Fig. 1 is the power-supply management system calcspar of the embodiment of the invention.Power-supply management system 100 comprises energy supply control module 110, power supply module 120, handover module 130 and a load circuit 140.Wherein, power supply module 120 is coupled to energy supply control module 110, and receives a primary power PS.And power supply module 120 also is coupled to handover module 130, and after primary power PS is converted to multi-group power, exports load circuit 140 to via handover module 130.
In the foregoing description, power supply module 120 can be with the primary power PS conversion multi-group power (for example the primary power PS with 12V is converted to 3V, 5V, 1.5V or the required voltage quasi position of other various loads) that is received.But, the embodiment of the invention for convenience of description, in following embodiment, power supply module 120 all supposes only primary power PS to be converted to two groups of power supplys, and is expressed as one first power supply P1 and second source P2 respectively.In addition, this embodiment also supposes to have two buffers in the power supply module 120, in order to storing the first flag F1 and the second flag F2, and represents respectively whether the voltage quasi position of the first power supply P1 and second source P2 is normal.When power supply module 120 detect the first power supply P1 of the load circuit that is supplied to 140 and second source P2 one of them when unusual, will the pairing flag of unusual power supply be set immediately.
Next, be assumed to be the operation that the basis begins to describe the power-supply management system that the embodiment of the invention proposed with above-mentioned.When power-supply management system 100 started, energy supply control module 110 inputed to power supply module 120 with primary power PS earlier.And after power supply module 120 receives primary power PS, begin primary power PS is converted to the first power supply P1 and second source P2, and reset its inner flag F1, F2.Simultaneously, whether the flag F1, the F2 that also begin in the monitoring power supply supply module 120 of energy supply control module 110 are set up.After the first power supply P1 and second source P2 were stable, the power supply module 120 outputs first power supply P1 and second source P2 be to handover module 130, and read out the sequence SEQ that starts shooting by power supply control.This start sequence SEQ offers the order of load circuit 140 in order to determine the first power supply P1 and second source P2, making the transistor logics running in the load circuit 140 normal, and need to prevent from the electric current inflow of the load of high voltage source to need the load of low-voltage source.
Next, power supply module 120 is according to start sequence SEQ, enable signal Enable_1 and Enable_2 on its output port of activation.And handover module 130 is exported the first power supply P1 and second source P2 to load circuit 140 according to enable signal Enable_1 and Enable_2.Afterwards, the load circuit 140 that receives the first power supply P1 and second source P2 also will begin normal operation, and simultaneously power supply module 120 whether still constantly detect the voltage quasi position of the first power supply P1 and second source P2 unusual.When power supply module 120 detects one of them voltage quasi position of the first power supply P1 and second source P2 when unusual, power supply module 120 just is provided with the flag F1 or the F2 of the power supply correspondence of the accurate position of abnormal voltage.Simultaneously, also flag F1 in monitoring power supply supply module 120 and F2 of energy supply control module 110.When energy supply control module 110 monitor flag F1 and F2 one of them when being set up, energy supply control module 110 stop supplies primary power PS immediately makes power supply module 120 time-out supply first power supply P1 and second source P2 to load circuit 140 to power supply module 120.Therefore load circuit 140 damage that just can not cause unusually because of voltage quasi position.
This area has knows that usually the knowledgeable can be known by inference by the above embodiments in equivalence, and available switch type power converter cooperates pulse-width modulation (PWM) controller to implement in the power supply module 120.The PWM controller is the feedback voltage that utilizes load circuit 140 to be returned, and regulates the voltage quasi position of the first power supply P1 and second source P2.Therefore, the embodiment of the invention only need be utilized the feedback voltage of load circuit 140, whether the voltage quasi position that just can detect the first power supply P1 and second source P2 is unusual, and, when the voltage quasi position that detects the first power supply P1 and second source P2 is unusual, the primary power PS of powered-down supply module 120 immediately.
This area has knows that usually the knowledgeable by the operation of above-mentioned handover module 130 as can be known, in another embodiment, handover module 130 is for example implemented with two switches (switch), the control end of a switch wherein receives enable signal Enable_1, and switches the output first power supply P1 to load circuit 140 according to enable signal Enable_1.And the control end of another switch receives enable signal Enable_2, and switches output second source P2 to load circuit 140 according to enable signal Enable_2.In addition, energy supply control module 110 proposed by the invention is mainly used in monitoring flag F1 and F2, and whether the primary power PS that controls in the power supply module 120 closes.Therefore, when practical application, the mode of energy supply control module 110 available hardware is implemented in the integrated circuit, or in the mode of firmware, controls power supply module 120, so the present invention is not exceeded with this embodiment.
In addition, in the above-described embodiments,, will stop to provide primary power PS, so that the power supply that provides to load circuit 140 to be provided when energy supply control module 110 monitors flag F1 or F2 when being set up.But for prevent because of unexpected powered-down for the injury that circuit caused, energy supply control module 110 also can be exported a power-down sequence to power supply module 120 monitoring flag F1 or F2 when being set up.Power supply module 120 is according to this power-down sequence, first power supply P1 of stop supplies in regular turn and second source P2.
According to the embodiment of above-mentioned Fig. 1, can summarize a method for managing power supply.Fig. 2 is the flow chart of steps of the method for managing power supply of the embodiment of the invention.Please be simultaneously with reference to Fig. 1 and 2, when power-supply management system 100 started, energy supply control module 110 provided primary power PS to power supply module 120 (step S210).Afterwards, the first flag F1 and the second flag F2 in the power supply module 120 replacement buffers, and beginning produces the first power supply P1 and second source P2 (step S220) according to primary power PS.
When the first power supply P1 and second source P2 stablize, power supply module 120 will read out a start sequence SEQ (step S230) by getting in the energy supply control module 110, and according to start sequence SEQ, activation provides to the enable signal Eable_1 of handover module 130 and Eable_2 (step S240).And handover module 130 will provide the first power supply P1 and second source P2 to load circuit 140 (step S250) according to enable signal Eable_1 and Eable_2.And this moment, whether flag F1 and F2 that energy supply control module 110 also begins in the monitoring power supply supply module 120 are set up (step S260).
At this moment, load circuit 140 has entered normal mode of operation, however energy supply control module 110 flag F1 and the F2 in the monitoring power supply supply module 120 constantly still.And when energy supply control module 110 find flag F1 and F2 one of them when being set up, with stop supplies primary power PS to power supply module 120 (step S270), so that power supply module 120 time-out supply first power supply P1 and second source P2 are to load circuit 140, with the damage that prevents that load circuit 140 from being caused because of the power supply instability.
In sum, the embodiment of the invention provides whether unusual to the power supply of load circuit by detecting, and when detecting abnormity of power supply, closes primary power immediately, with the stop supplies power to load circuit, prevents that load circuit from damaging because of power supply is unstable.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; have in the technical field under any and know the knowledgeable usually; without departing from the spirit and scope of the present invention; when can doing a little change and retouching, so protection scope of the present invention is as the criterion when looking the described scope of accompanying Claim.
Claims (11)
1, a kind of power-supply management system drives a load circuit, it is characterized in that, comprising:
One power supply module according to a primary power, provides at least one first power supply and a second source to this load circuit, and detects the voltage quasi position of this first power supply and this second source; And
One energy supply control module is coupled to this power supply module, and in order to this primary power to be provided, and when one of them voltage quasi position of this first power supply and this second source was unusual, this energy supply control module is this primary power of stop supplies then.
2, power-supply management system according to claim 1 is characterized in that: described power supply module comprises:
One first flag is corresponding to this first power supply; And
One second flag is corresponding to this second source;
Wherein,, this first flag is set then, when the voltage quasi position that detects this second source is unusual, this second flag is set then when power supply module detects the accurate position of this first power source voltage when unusual.
3, power-supply management system according to claim 2 is characterized in that: when described energy supply control module detect this first flag and this second flag one of them when being provided with, then this primary power of stop supplies is to this power supply module.
4, power-supply management system according to claim 1, it is characterized in that: when described power-supply management system starts, this energy supply control module output one start sequence is to this power supply module, and this power supply module determines this first power supply and second source that the order to this load circuit is provided according to this sequence of starting shooting.
5, power-supply management system according to claim 4 is characterized in that, described power supply module comprises:
One first output port is corresponding to this first power supply; And
One second output port is corresponding to this second source;
Wherein, this energy supply control module is controlled the order of the signal activation on this first output port and this second output port according to this sequence of starting shooting.
6, power-supply management system according to claim 5 is characterized in that, described power supply module also comprises:
All die change pieces, be coupled to this first output port and this second output port, and receive this first power supply and this second source, when the signal activation on this first output port, export this first power supply to this load circuit, when the signal activation on this second output port, export this second source to this load circuit.
7, a kind of method for managing power supply is characterized in that, comprises the following steps:
One primary power is provided;
According to this primary power, provide at least one first power supply and a second source to a load circuit;
Detect the voltage quasi position of this first power supply and this second source; And
When one of them voltage quasi position of this first power supply and this second source was unusual, this primary power of stop supplies was so that this first power supply and this second source that provides to this load circuit to be provided.
8, method for managing power supply according to claim 7 is characterized in that, detects the step of the voltage quasi position of this first power supply and this second source, comprises the following steps:
One first flag and one second flag are provided;
Detect the voltage quasi position of this first power supply and this second source;
When detecting the accurate position of this first power source voltage when unusual, this first flag is set then; And
When the voltage quasi position that detects this second source is unusual, this second flag is set then.
9, method for managing power supply according to claim 8 is characterized in that, also comprises the following steps:
This first flag of resetting and this second flag.
10, method for managing power supply according to claim 8, it is characterized in that, when one of them voltage quasi position of this first power supply and this second source is unusual, this primary power of stop supplies, provide to this first power supply of this load circuit and the step of this second source to close, comprise the following steps:
Monitor this first flag and this second flag; And
When monitoring this first flag and this second flag when being provided with, this primary power of stop supplies is so that this first power supply and this second source that provides to this load circuit to be provided.
11, method for managing power supply according to claim 7 is characterized in that, wherein provides this first power supply and this second source to the step of this load circuit, comprises the following steps:
According to a start sequence, provide this first power supply and this second source to this load circuit in regular turn, wherein this start sequence provides the order to this load circuit in order to determine this first power supply and this second source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100289416A CN101339414A (en) | 2007-07-02 | 2007-07-02 | Power management system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100289416A CN101339414A (en) | 2007-07-02 | 2007-07-02 | Power management system and method |
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| CN101339414A true CN101339414A (en) | 2009-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2007100289416A Pending CN101339414A (en) | 2007-07-02 | 2007-07-02 | Power management system and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105098959A (en) * | 2014-05-07 | 2015-11-25 | 新巨企业股份有限公司 | Bootup architecture for redundancy-type standby power system |
| CN107493091A (en) * | 2016-06-13 | 2017-12-19 | 神讯电脑(昆山)有限公司 | Power supply method and its device |
-
2007
- 2007-07-02 CN CNA2007100289416A patent/CN101339414A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105098959A (en) * | 2014-05-07 | 2015-11-25 | 新巨企业股份有限公司 | Bootup architecture for redundancy-type standby power system |
| CN107493091A (en) * | 2016-06-13 | 2017-12-19 | 神讯电脑(昆山)有限公司 | Power supply method and its device |
| CN107493091B (en) * | 2016-06-13 | 2021-03-23 | 神讯电脑(昆山)有限公司 | Power supply method and device |
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Open date: 20090107 |