CN101593014B - Power supply management module and computer - Google Patents
Power supply management module and computer Download PDFInfo
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- CN101593014B CN101593014B CN200810098701A CN200810098701A CN101593014B CN 101593014 B CN101593014 B CN 101593014B CN 200810098701 A CN200810098701 A CN 200810098701A CN 200810098701 A CN200810098701 A CN 200810098701A CN 101593014 B CN101593014 B CN 101593014B
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Abstract
The invention relates to a power supply management module and a computer. The power supply management module is arranged in the computer and comprises a power supply detection module and a chip group; the power supply detection module is arranged between output power cords of the power-receiving end of an external plug-in card and the power-supplying end of the computer so as to detect a current drawn by the external plug-in card and outputting a current detection signal to the chip group which adjusts an operation voltage or an operation frequency of the external plug-in card according to the current detection signal.
Description
Technical field
The present invention relates to a kind of power management module, particularly relate to a kind of the utilization and detect the power management module that electric current is adjusted power consumption.
Background technology
Please refer to Fig. 1.Fig. 1 is the synoptic diagram of the computing machine 100 of a prior art.As shown in the figure, computing machine 100 comprises power supply unit PS and mainboard MB.Be provided with central processing unit CPU, chipset CS, DC-DC converter DC/DC in mainboard MB
1(DC/DC Converter), voltage stabilizer (Regulator) LDO
1, LDO
2, predetermined function device Y
1And current detection module CDM
1
Power supply unit PS is via power lead W
1With attaching plug CON
1, be coupled to the supply socket SKT on the mainboard MB
1, provide power supply to DC-DC converter DC/DC
1DC-DC converter DC/DC
1Again the power supply that is received is adjusted to appropriate voltage, offers voltage stabilizer LDO more respectively
1And LDO
2Voltage stabilizer LDO
1The power supply that appropriate voltage is provided is to central processing unit CPU and chipset CS.Voltage stabilizer LDO
2The power supply that appropriate voltage is provided is to predetermined function device Y
1
Current detection module CDM
1Be coupled to voltage stabilizer LDO
2With predetermined function device Y
1Between, in order to detect voltage stabilizer LDO
2Send predetermined function device Y to
1Size of current, and export a current detection signal S
I1Give chipset CS.Chipset CS just can be according to current detection signal S
I1, judge predetermined function device Y
1Mode of operation, and then adjust predetermined function device Y according to this
1Power consumption.For instance, as current detection signal S
I1Less than a predetermined value I
P1The time, chipset CS just can judge predetermined function device Y
1Be in idle state (idle) at present; As current detection signal S
I1Greater than predetermined value I
P1The time, chipset CS just can judge predetermined function device Y
1Be in busy condition (busy) at present.When chipset CS judges predetermined function device Y
1When being in idle state, chipset CS can send a control signal S
C1To voltage stabilizer LDO
2, to downgrade voltage stabilizer LDO
2Output voltage, so just can reduce predetermined function device Y
1Power consumption; Perhaps, as chipset CS judgement predetermined function device Y
1When being in idle state, chipset CS can send a control signal S
C2To predetermined function device Y
1, to downgrade predetermined function device Y
1Operating frequency, so equally also can reduce predetermined function device Y
1Power consumption.When chipset CS judges predetermined function device Y
1When being in busy condition, chipset CS can send control signal S
C1To voltage stabilizer LDO
2, to increase voltage stabilizer LDO
2Output voltage, so just can strengthen predetermined function device Y
1Processing speed; Perhaps, as chipset CS judgement predetermined function device Y
1When being in busy condition, chipset CS can send control signal S
C2To predetermined function device Y
1, to increase predetermined function device Y
1Operating frequency, so equally also can strengthen predetermined function device Y
1Processing speed.
Mainboard MB also disposes socket SKT
X, be connected to chipset CS via peripheral component interface (Peripheral Component Interface) or other similar interfaces, be used to provide the device that the external script mainboard of user MB is not provided with.As shown in the figure, external device X just can insert in socket SKT
X, so just can link up and carry out the function that external device X is had via peripheral component interface or other similar interfaces and chipset CS.
In general, under the less situation of external device X power consumption, the DC-DC converter DC/DC on the mainboard MB
1Can be directly via socket SKT
X, provide power supply to external device X.Yet, if the power consumption of external device X big (like the image accelerator card), the DC-DC converter DC/DC on the mainboard
1The power supply that is provided just can't satisfy the power supply of external device X.Therefore, external device X just needs to draw required power supply from power supply unit PS.
External device X comprises supply socket SKT
2, DC-DC converter DC/DC
2, voltage stabilizer LDO
3And predetermined function device Y
2Give an example like leading portion, if external device X is when being an image accelerator card, predetermined function device Y then
2Be the effect that carries out image quickens that is used for.Power supply unit PS is via power lead W
2With attaching plug CON
2, be coupled to the supply socket SKT on the external device X
2, provide power supply to DC-DC converter DC/DC
2DC-DC converter DC/DC
2Again the power supply that is received is adjusted to appropriate voltage, offers voltage stabilizer LDO more respectively
3Voltage stabilizer LDO
3The power supply that appropriate voltage is provided is to predetermined function device Y
2So, predetermined function device Y
2Just can be via socket SKT
XLink up with the interface of chipset CS, to carry out intended function.
Yet; Because the power supply that external device X is drawn is directly to be provided by power supply unit PS; So the chipset CS on the mainboard just can't learn power consumption degree and the mode of operation of external device X; Also can't adjust supply voltage and the operating frequency of external device X according to this, and can't bring into play the optimal efficacy of external device X, also can't effectively save the electric energy that external device X is consumed.
Summary of the invention
The present invention provides a kind of power management module, is arranged at a computing machine.This computing machine comprises a power supply unit, a mainboard and an external device.This power management module comprises a current detection module, is coupled between this power supply unit and this external device, is used for detecting the electric current that this external device draws and exports a current detection signal according to this; And a controller, be coupled between this current detection module and this external device, be used for according to this current detection signal, output one controls signal to this external device to control the mode of operation of this external device.
The present invention also provides a kind of computing machine with power management.This computing machine comprises a power supply unit, comprises one first output terminal and one second output terminal, is used for providing respectively power supply; One external device is coupled to this first output terminal of this power supply unit, to receive power supply; An and mainboard; This second output terminal that is coupled to this power supply unit is to receive power supply; Comprise a current detection module, be coupled between this first output terminal of this external device and this power supply unit, be used for detecting the electric current that this external device draws and export a current detection signal according to this; And a controller, be coupled between this current detection module and this external device, be used for according to this current detection signal, output one controls signal to this external device to control the mode of operation of this external device.
The present invention also provides a kind of computing machine with power management.This computing machine comprises a power supply unit, comprises one first output terminal and one second output terminal, is used for providing respectively power supply; One external device is coupled to this first output terminal of this power supply unit, to receive power supply; One current detection module is coupled between this first output terminal of this external device and this power supply unit, is used for detecting the electric current that this external device draws and exports a current detection signal according to this; An and mainboard; This second output terminal that is coupled to this power supply unit comprises a controller to receive power supply, is coupled between this current detection module and this external device; Be used for according to this current detection signal, output one controls signal to this external device to control the mode of operation of this external device.
Beneficial effect of the present invention is; Utilize power management module provided by the present invention; Computing machine is except detecting the power consumption that is arranged at the device on the mainboard the adjustment according to this; Also can detect the power consumption of external device, so just whole power consumption and the mode of operation of integrality ground control computer more, and offer the bigger convenience of user.
Description of drawings
Fig. 1 is the synoptic diagram of the computing machine of a prior art.
Fig. 2 utilizes the synoptic diagram of computing machine of first embodiment of power management module for the present invention.
Fig. 3 utilizes the synoptic diagram of computing machine of second embodiment of power management module for the present invention.
Fig. 4 utilizes the synoptic diagram of computing machine of the 3rd embodiment of power management module for the present invention.
Fig. 5 utilizes the synoptic diagram of computing machine of the 4th embodiment of power management module for the present invention.
Fig. 6 is the synoptic diagram of another embodiment of current detector.
Embodiment
Please refer to Fig. 2.Fig. 2 utilizes the synoptic diagram of computing machine 200 of first embodiment of power management module for the present invention.As shown in the figure, computing machine 200 comprises power supply unit PS and mainboard MB.Be provided with central processing unit CPU, chipset CS, voltage stabilizer LDO in mainboard MB
1, LDO
2, predetermined function device Y
1And current detection module CDM
1, CDM
2Power management module 210 (not icon) comprises chipset CS and current detection module CDM
2
Power supply unit PS is via power lead W
1With attaching plug CON
1, be coupled to the supply socket SKT on the mainboard MB
1, provide power supply to DC-DC converter DC/DC
1DC-DC converter DC/DC
1Again the power supply that is received is adjusted to appropriate voltage, offers voltage stabilizer LDO more respectively
1And LDO
2Voltage stabilizer LDO
1The power supply that appropriate voltage is provided is to central processing unit CPU and chipset CS.Voltage stabilizer LDO
2The power supply that appropriate voltage is provided is to predetermined function device Y
1
Current detection module CDM
1Be coupled to voltage stabilizer LDO
2With predetermined function device Y
1Between, in order to detect voltage stabilizer LDO
2Send predetermined function device Y to
1Size of current, and export a current detection signal S
I1Give chipset CS.Chipset CS just can be according to current detection signal S
I1, judge predetermined function device Y
1Mode of operation, and then adjust predetermined function device Y according to this
1Power consumption.For instance, as current detection signal S
I1Less than a predetermined value I
P1The time, chipset CS just can judge predetermined function device Y
1Be in idle state (idle) at present; As current detection signal S
I1Greater than predetermined value I
P1The time, chipset CS just can judge predetermined function device Y
1Be in busy condition (busy) at present.When chipset CS judges predetermined function device Y
1When being in idle state, chipset CS can send a control signal S
C1To voltage stabilizer LDO
2, to downgrade voltage stabilizer LDO
2Output voltage, so just can reduce predetermined function device Y
1Power consumption; Perhaps, as chipset CS judgement predetermined function device Y
1When being in idle state, chipset CS can send a control signal S
C2To predetermined function device Y
1, to downgrade predetermined function device Y
1Operating frequency, so equally also can reduce predetermined function device Y
1Power consumption.When chipset CS judges predetermined function device Y
1When being in busy condition, chipset CS can send control signal S
C1To voltage stabilizer LDO
2, to increase voltage stabilizer LDO
2Output voltage, so just can strengthen predetermined function device Y
1Processing speed; Perhaps, as chipset CS judgement predetermined function device Y
1When being in busy condition, chipset CS can send control signal S
C2To predetermined function device Y
1, to increase predetermined function device Y
1Operating frequency, so equally also can strengthen predetermined function device Y
1Processing speed.
Mainboard MB also disposes socket SKT
X, be connected to chipset CS via peripheral component interface (Peripheral Component Interface) or other similar interfaces, be used to provide the device that the external script mainboard of user MB is not provided with.As shown in the figure, external device X just can insert in socket SKT
X, so just can link up and carry out the function that external device X is had via peripheral component interface or other similar interfaces and chipset CS.
In general, under the less situation of external device X power consumption, the DC-DC converter DC/DC on the mainboard MB
1Can be directly via socket SKT
X, provide power supply to external device X.Yet, if the power consumption of external device X big (like the image accelerator card), the DC-DC converter DC/DC on the mainboard
1The power supply that is provided just can't satisfy the power supply of external device X.Therefore, external device X just needs to draw required power supply from power supply unit PS.
External device X comprises supply socket SKT
2, DC-DC converter DC/DC
2, voltage stabilizer LDO
3And predetermined function device Y
2Give an example like leading portion, if external device X is when being an image accelerator card, predetermined function device Y then
2Be the effect that carries out image quickens that is used for.Power supply unit PS is via power lead W
2With attaching plug CON
2, be coupled to the supply socket SKT on the external device X
2, provide power supply to DC-DC converter DC/DC
2DC-DC converter DC/DC
2Again the power supply that is received is adjusted to appropriate voltage, offers voltage stabilizer LDO more respectively
3Voltage stabilizer LDO
3The power supply that appropriate voltage is provided is to predetermined function device Y
2So, predetermined function device Y
2Just can be via socket SKT
XLink up with the interface of chipset CS, to carry out intended function.
Power management module 210 is the modes of operation that are used for detecting the current sinking of external device X and control external device X according to this.In power management module 210, current detection module CDM
2Comprise analog/digital converter (Analog/Digital Converter, ADC) ADC
1, socket SKT
3, plug CON
3And current detector D
IAnalog/digital converter ADC wherein
1, socket SKT
3, plug CON
3All can be arranged on the mainboard MB.Current detection module CDM
2Current detector D
IBe arranged at the power lead W of power supply unit PS
2On, be used for detecting power lead W
2On the size of current of being flowed through, and export an analog current detection signal, via plug CON
3, socket SKT
3, be sent to analog/digital converter ADC
1Analog/digital converter ADC
1Just with the analog current detection signal that is received, convert a digital signal to as current detection signal S
I2, and with current detection signal S
I2Send chipset CS to.Chipset CS just can be according to current detection signal S
I2, judge predetermined function device Y
2Mode of operation, and then adjust predetermined function device Y according to this
2Power consumption.For instance, as current detection signal S
I2Less than a predetermined value I
P2The time, chipset CS just can judge predetermined function device Y
2Be in idle state at present; As current detection signal S
I2Greater than predetermined value I
P2The time, chipset CS just can judge predetermined function device Y
2Be in busy condition at present.When chipset CS judges predetermined function device Y
2When being in idle state, chipset CS can send control signal S
C4To voltage stabilizer LDO
3, to downgrade voltage stabilizer LDO
3Output voltage, so just can reduce predetermined function device Y
2Power consumption; Perhaps, as chipset CS judgement predetermined function device Y
2When being in idle state, chipset CS can send control signal S
C3To predetermined function device Y
2, to downgrade predetermined function device Y
2Operating frequency, so equally also can reduce predetermined function device Y
2Power consumption.When chipset CS judges predetermined function device Y
2When being in busy condition, chipset CS can send control signal S
C4To voltage stabilizer LDO
3, to increase voltage stabilizer LDO
3Output voltage, so just can strengthen predetermined function device Y
1Processing speed; Perhaps, as chipset CS judgement predetermined function device Y
2When being in busy condition, chipset CS can send control signal S
C3To predetermined function device Y
2, to increase predetermined function device Y
2Operating frequency, so equally also can strengthen predetermined function device Y
2Processing speed.
In addition, in Fig. 2, current detector D
IWith a resistance R
1Realize.Resistance R
1Can be serially connected with power lead W
2On, and can be according to resistance R
1On pressure drop, judge power lead W
2Size of current, so via analog/digital converter ADC
1Conversion after, just can transmit current detection signal S
I2To chipset CS.And predetermined value I
P1With I
P2Can be identical or different, end sees that the user need and set.
Therefore; Computing machine 200 is after having used power management module 210 provided by the present invention; The adjustment according to this, also can detect the power consumption of external device X except detecting the power consumption that is arranged at the device on the mainboard, so just whole power consumption and the mode of operation of integrality ground control computer more.
Please refer to Fig. 3.Fig. 3 utilizes the synoptic diagram of computing machine 200 of second embodiment of power management module for the present invention.As shown in the figure, computing machine 200 comprises power supply unit PS and mainboard MB.Be provided with central processing unit CPU, chipset CS, voltage stabilizer LDO in mainboard MB
1, LDO
2, predetermined function device Y
1And current detection module CDM
1, CDM
2Power management module 310 (not icon) comprises chipset CS and current detection module CDM
2Power management module 310 is similar to power management module 210, and same section repeats no more in this.Power management module 310 and 210 different being in current detection module CDM
2In current detector D
IMake into inductance L
1Realize.Inductance L
1Can be a ring-type inductance, be surrounded on power lead W
2On, and can be according to power lead W
2On the electric current that circulated, produce an induction current according to this and be sent to analog/digital converter ADC
1, so via analog/digital converter ADC
1Conversion after, just can transmit current detection signal S
I2To chipset CS.
Please refer to Fig. 4.Fig. 4 utilizes the synoptic diagram of computing machine 400 of the 3rd embodiment of power management module for the present invention.As shown in the figure, computing machine 400 comprises power supply unit PS, mainboard MB and current detection module CDM
3Be provided with central processing unit CPU, chipset CS, voltage stabilizer LDO in mainboard MB
1, LDO
2, predetermined function device Y
1And current detection module CDM
1Power management module 410 (not icon) comprises chipset CS and current detection module CDM
3Fig. 4 is similar to Fig. 2, and associated description all is same as this and repeats no more.Fig. 4 and Fig. 2 difference are current detection module CDM
3Be arranged at outside the mainboard MB.As shown in the figure, current detection module CDM
3In analog/digital converter ADC
1Be arranged at outside the mainboard MB, so the current detection signal of its required power supply and transmission all must pass through plug CON
4With socket SKT
4Be connected on the mainboard MB.Analog/digital converter ADC
1Required power supply can be by the DC-DC converter DC/DC on the mainboard
1, via socket SKT
4, plug CON
4Provide; Analog/digital converter ADC
1The current detection signal S that is produced
I2Also equally via plug CON
4, socket SKT
4, be sent to chipset CS.In addition, in Fig. 4, current detector D
IWith a resistance R
1Realize.Resistance R
1Can be serially connected with power lead W
2On, and can be according to resistance R
1On pressure drop, judge power lead W
2Size of current, so via analog/digital converter ADC
1Conversion after, just can transmit current detection signal S
I2To chipset CS.
Therefore; Computing machine 400 is after having used power management module 410 provided by the present invention; The adjustment according to this, also can detect the power consumption of external device X except detecting the power consumption that is arranged at the device on the mainboard, so just whole power consumption and the mode of operation of integrality ground control computer more.
Please refer to Fig. 5.Fig. 5 utilizes the synoptic diagram of computing machine 400 of the 4th embodiment of power management module for the present invention.As shown in the figure, computing machine 400 comprises power supply unit PS, mainboard MB and current detection module CDM
3Be provided with central processing unit CPU, chipset CS, voltage stabilizer LDO in mainboard MB
1, LDO
2, predetermined function device Y
1And current detection module CDM
1Power management module 510 (not icon) comprises chipset CS and current detection module CDM
3Fig. 5 is similar to Fig. 4, and associated description all is same as this and repeats no more.Power management module 510 is similar to power management module 410, and same section repeats no more in this.Power management module 510 and 410 different being in current detection module CDM
3In current detector D
IMake into inductance L
1Realize.Inductance L
1Can be a ring-type inductance, be surrounded on power lead W
2On, and can be according to power lead W
2On the electric current that circulated, produce an induction current according to this and be sent to analog/digital converter ADC
1, so via analog/digital converter ADC
1Conversion after, just can transmit current detection signal S
I2To chipset CS.
Please refer to Fig. 6.Fig. 6 is the synoptic diagram of another embodiment of current detector.As shown in the figure, current detector D
IExcept with the ring-type inductance L
1Outside realizing, can also a shaft-like inductance L
2Realize.Shaft-like inductance L
2Also can be according to power lead W
2On the electric current that circulated, produce an induction current according to this and be sent to analog/digital converter ADC
1, so via analog/digital converter ADC
1Conversion after, just can transmit current detection signal S
I2To chipset CS.It should be noted that shaft-like inductance L
2With power lead W
2Between distance need design appositely, to avoid analog/digital converter ADC
1The current detection signal S that is produced
I2Error is too big.
In sum; Utilize power management module provided by the present invention; Computing machine is except detecting the power consumption that is arranged at the device on the mainboard the adjustment according to this; Also can detect the power consumption of external device, so just whole power consumption and the mode of operation of integrality ground control computer more, and offer the bigger convenience of user.
The above is merely preferred embodiment of the present invention, and all equalizations of doing according to claims of the present invention change and modify, and all should belong to covering scope of the present invention.
Claims (17)
1. power management module; Be arranged in the computing machine; The aforementioned calculation machine comprises power supply unit, mainboard and external device; Above-mentioned power supply unit comprises first output terminal and second output terminal, and above-mentioned mainboard and above-mentioned external device are connected to above-mentioned first output terminal and above-mentioned second output terminal respectively, it is characterized in that above-mentioned power management module comprises:
Current detection module is coupled between above-mentioned power supply unit and the above-mentioned external device, is used for detecting electric current that above-mentioned external device draws and output current detection signal according to this; And
Controller is coupled between above-mentioned current detection module and the above-mentioned external device, is used for according to above-mentioned current detection signal, outputs control signals to above-mentioned external device to control the mode of operation of above-mentioned external device;
Wherein, When above-mentioned current detection signal during less than predetermined value, above-mentioned controller output is above-mentioned to be controlled signal to above-mentioned external device and exports with the operating frequency that downgrades above-mentioned external device or above-mentioned controller person and above-mentionedly control signal to above-mentioned external device to downgrade the operating voltage of above-mentioned external device; When above-mentioned current detection signal during greater than above-mentioned predetermined value, above-mentioned controller output is above-mentioned to control signal to above-mentioned external device with the operating frequency that increases above-mentioned external device or the output of above-mentioned controller is above-mentioned controls signal to above-mentioned external device to increase the operating voltage of above-mentioned external device.
2. power management module according to claim 1 is characterized in that, wherein above-mentioned current detection module comprises:
Current detector is coupled between above-mentioned power supply unit and the above-mentioned external device, is used for detecting the above-mentioned electric current that above-mentioned external device draws and exports the analog current detection signal; And
Analog/digital converter is coupled to above-mentioned current detector, is used for converting above-mentioned analog current detection signal into digital signal with as above-mentioned current detection signal.
3. power management module according to claim 2 is characterized in that, wherein above-mentioned current detector is an inductance.
4. power management module according to claim 2 is characterized in that, wherein above-mentioned current detector is a resistance.
5. power management module according to claim 2 is characterized in that, wherein above-mentioned analog/digital converter is arranged on the above-mentioned mainboard.
6. power management module according to claim 2 is characterized in that, wherein above-mentioned controller is arranged on the above-mentioned mainboard.
7. power management module according to claim 1 is characterized in that, wherein above-mentioned controller is a chipset.
8. the computing machine with power management is characterized in that, comprises:
Power supply unit comprises first output terminal and second output terminal, is used for providing respectively power supply;
External device is coupled to above-mentioned first output terminal of above-mentioned power supply unit, to receive power supply; And
Mainboard, above-mentioned second output terminal that is coupled to above-mentioned power supply unit comprises to receive power supply:
Current detection module is coupled between above-mentioned first output terminal of above-mentioned external device and above-mentioned power supply unit, is used for detecting electric current that above-mentioned external device draws and output current detection signal according to this; And
Controller is coupled between above-mentioned current detection module and the above-mentioned external device, is used for according to above-mentioned current detection signal, outputs control signals to above-mentioned external device to control the mode of operation of above-mentioned external device;
Wherein, When above-mentioned current detection signal during less than predetermined value, above-mentioned controller output is above-mentioned to control signal to above-mentioned external device with the operating frequency that downgrades above-mentioned external device or the output of above-mentioned controller is above-mentioned controls signal to above-mentioned external device to downgrade the operating voltage of above-mentioned external device; When above-mentioned current detection signal during greater than above-mentioned predetermined value, above-mentioned controller output is above-mentioned to control signal to above-mentioned external device with the operating frequency that increases above-mentioned external device or the output of above-mentioned controller is above-mentioned controls signal to above-mentioned external device to increase the operating voltage of above-mentioned external device.
9. computing machine according to claim 8 is characterized in that, wherein above-mentioned current detection module comprises:
Current detector is coupled between above-mentioned first output terminal and above-mentioned external device of above-mentioned power supply unit, is used for detecting the above-mentioned electric current that above-mentioned external device draws and exports the analog current detection signal; And
Analog/digital converter is coupled to above-mentioned current detector, is used for converting above-mentioned analog current detection signal into digital signal with as above-mentioned current detection signal.
10. computing machine according to claim 9 is characterized in that, wherein above-mentioned current detector is an inductance.
11. computing machine according to claim 9 is characterized in that, wherein above-mentioned current detector is a resistance.
12. computing machine according to claim 8 is characterized in that, wherein above-mentioned controller is a chipset.
13. the computing machine with power management is characterized in that, comprises:
Power supply unit comprises first output terminal and second output terminal, is used for providing respectively power supply;
External device is coupled to above-mentioned first output terminal of above-mentioned power supply unit, to receive power supply;
Current detection module is coupled between above-mentioned first output terminal of above-mentioned external device and above-mentioned power supply unit, is used for detecting electric current that above-mentioned external device draws and output current detection signal according to this; And
Mainboard, above-mentioned second output terminal that is coupled to above-mentioned power supply unit comprises to receive power supply:
Controller is coupled between above-mentioned current detection module and the above-mentioned external device, is used for according to above-mentioned current detection signal, outputs control signals to above-mentioned external device to control the mode of operation of above-mentioned external device;
Wherein, When above-mentioned current detection signal during less than predetermined value, above-mentioned controller output is above-mentioned to control signal to above-mentioned external device with the operating frequency that downgrades above-mentioned external device or the output of above-mentioned controller is above-mentioned controls signal to above-mentioned external device to downgrade the operating voltage of above-mentioned external device; When above-mentioned current detection signal during greater than above-mentioned predetermined value, above-mentioned controller output is above-mentioned to control signal to above-mentioned external device with the operating frequency that increases above-mentioned external device or the output of above-mentioned controller is above-mentioned controls signal to above-mentioned external device to increase the operating voltage of above-mentioned external device.
14. computing machine according to claim 13 is characterized in that, wherein above-mentioned current detection module comprises:
Current detector is coupled between above-mentioned first output terminal and above-mentioned external device of above-mentioned power supply unit, is used for detecting the above-mentioned electric current that above-mentioned external device draws and exports the analog current detection signal; And
Analog/digital converter is coupled to above-mentioned current detector, is used for converting above-mentioned analog current detection signal into digital signal with as above-mentioned current detection signal.
15. computing machine according to claim 14 is characterized in that, wherein above-mentioned current detector is an inductance.
16. computing machine according to claim 14 is characterized in that, wherein above-mentioned current detector is a resistance.
17. computing machine according to claim 13 is characterized in that, wherein above-mentioned controller is a chipset.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810098701A CN101593014B (en) | 2008-05-30 | 2008-05-30 | Power supply management module and computer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810098701A CN101593014B (en) | 2008-05-30 | 2008-05-30 | Power supply management module and computer |
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| CN101593014B true CN101593014B (en) | 2012-09-19 |
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| CN101833365B (en) * | 2009-03-09 | 2011-09-14 | 华为技术有限公司 | Single board energy saving device, method and single board |
| CN101968840B (en) * | 2010-10-26 | 2012-09-26 | 杭州晟元芯片技术有限公司 | Voltage detection and frequency detection-based chip anti-attack method |
| TWI775024B (en) | 2019-12-20 | 2022-08-21 | 宏碁股份有限公司 | System and method for monitoring video communication device |
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|---|---|---|---|---|
| CN1307259A (en) * | 2000-01-25 | 2001-08-08 | 神基科技股份有限公司 | Equipment and method of preventing overcurrent from resulting in system stop |
| CN1505777A (en) * | 2000-08-11 | 2004-06-16 | ���ǵ�����ʽ���� | Power-saving apparatus and method for computer peripheral devices |
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2008
- 2008-05-30 CN CN200810098701A patent/CN101593014B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1307259A (en) * | 2000-01-25 | 2001-08-08 | 神基科技股份有限公司 | Equipment and method of preventing overcurrent from resulting in system stop |
| CN1505777A (en) * | 2000-08-11 | 2004-06-16 | ���ǵ�����ʽ���� | Power-saving apparatus and method for computer peripheral devices |
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| CN101593014A (en) | 2009-12-02 |
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