CN102866756A - Feed-forward control system for pulse current and control method thereof - Google Patents
Feed-forward control system for pulse current and control method thereof Download PDFInfo
- Publication number
- CN102866756A CN102866756A CN201110185716XA CN201110185716A CN102866756A CN 102866756 A CN102866756 A CN 102866756A CN 201110185716X A CN201110185716X A CN 201110185716XA CN 201110185716 A CN201110185716 A CN 201110185716A CN 102866756 A CN102866756 A CN 102866756A
- Authority
- CN
- China
- Prior art keywords
- processing unit
- power supply
- unit
- electric current
- feedforward
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Dc-Dc Converters (AREA)
Abstract
The invention relates to a feed-forward control method for a pulse current. The feed-forward control method comprises the following steps of: firstly, normally supplying an initial current to a processing unit by a power supply unit; and then pre-sending a feed-forward demand signal to the power supply unit by the processing unit before the processing unit changes the calculating efficacy, and correspondingly supplying a modulation current to the processing unit according to the feed-forward demand signal by the power supply unit.
Description
[technical field]
The present invention is a kind of control system and control method thereof, especially about a kind of feedforward control system and control method thereof of pulse wave electric current.
[background technology]
Processing unit in the general computer, such as central processing unit (Central Processing Unit, CPU) or graphic process unit (Graphic Processing Unit, GPU) etc., can need along with the data treatment capacity different required electric powers, and be responsible for adjusting and cooperating the processing unit required electric power, then need to see through a kind of pulse wave width modulation unit (Pulse Width Modulation Unit, PWM Unit) and control.
The pulse wave width modulation unit is to be positioned to be responsible for providing the electronic component of electric current to processing unit on the computer motherboard, the pulse wave width modulation unit can be according to the change in voltage of processing unit, to regulate the electric current exported to processing unit, no matter the data treatment capacity of processing unit increases or reduces, and the pulse wave width modulation unit all can offer according to the change in voltage of processing unit processing unit take adjustment electric current is suitable current value.
Please refer to Figure 1A, be the electric power system synoptic diagram of the pulse wave width modulation unit of known technology.Known electric power system 100 comprises a processing unit 110 and a pulse wave width modulation unit 120, and processing unit 110 is to be electrically connected to pulse wave width modulation unit 120, and gives processing unit 110 by the electric current that provides of pulse wave width modulation unit 120 normalities.
When the data treatment capacity of processing unit 110 increases, the increase that the power consumption of processing unit 110 also can be relative, this moment, pulse wave width modulation unit 120 can be according to the change in voltage of processing unit 110, to adjust and to provide suitable electric current to processing unit 110.When processing unit 110 data treatment capacities reduce, the minimizing that the power consumption of processing unit 110 also can be relative, this moment, pulse wave width modulation unit 120 can be according to the change in voltage of processing unit 110, to adjust and to provide suitable electric current to processing unit 110.
Pulse wave width modulation unit 120 comes modulation to offer the electric current of processing unit 110 according to the change in voltage of processing unit 110, to belong to a kind of feedback control (feed-back control) method, must wait until that pulse wave width modulation unit 120 detects the change in voltage of processing unit 110, pulse wave width modulation unit 120 just can begin the electric current that modulation offers processing unit 110, so the electricity needs that the power supply speed of feedback control method can't immediate reaction processing unit 110.Owing to be after the too much or not enough situation of the electric power of processing unit 110 occurs, pulse wave width modulation unit 120 just carries out the electric current that modulation is supplied, can produce a time interval during this, cause processing unit 110 that the drop of required electric current can occur in this time interval.Offer the too much or not enough damage that all may cause processing unit 110 of electric power of processing unit 110.
Please refer to Figure 1B, be another electric power system synoptic diagram of the pulse wave width modulation unit of known technology.Industrial community solves the too much or not enough mode of electric current that offers processing unit 110 at present, by a plurality of capacitors 130 of the other electric connection between processing unit 110 and pulse wave width modulation unit 120.These capacitors 130 can temporary transient storage offer the unnecessary electric power of processing unit 110, in the situation that these capacitors 130 also can increase at the power consumption of processing unit 110 in addition, the processing unit 110 of offering that stored electric power is interim uses, until 120 modulations suitable electric current in pulse wave width modulation unit is to processing unit 110.
Yet along with the progress of science and technology, the treatment efficiency of processing unit 110 is also more and more higher, so the increase that processing unit 110 employed electric power also can be relative.For in response to the processing unit 110 needed electric power that promote usefulness, just the quantity of capacitor 130 certainly will be also must increase can be dealt with the electricity needs of processing unit 110.The capacitor 130 of these increases will take space certain on the computer motherboard, so that computer motherboard must increase its size, in order to deal with the quantity of these capacitors that are increased 130.Increasing the size of computer motherboard, obviously is the way that runs in the opposite direction for the compact purpose of now computer apparatus pursuit.
In sum, the electric current that known pulse wave width modulation unit provides at modulation is during to processing unit, drop that will the generation time interval and power supply speed can't immediate reaction problem, and then can't satisfy the demand of present processing unit high speed electricity consumption, and the quantity of capacitor increases, and will increase the size of computer motherboard.
[summary of the invention]
In view of above problem, the invention reside in feedforward control system and control method thereof that a kind of pulse wave electric current is provided, use the drop at generation time interval when solving the pulse wave width modulation unit commonly use and powering to processing unit, and power supply speed can't immediate reaction etc. problem.
The present invention discloses a kind of feedforward control system of pulse wave electric current, comprises a processing unit and a power supply unit.Processing unit system optionally produces a feedforward control signal, and power supply unit system is electrically connected processing unit, and the power supply unit normality provides an initial current to processing unit, and power supply unit optionally provides a modulation electric current to processing unit.Wherein, before processing unit changed an operation efficiency, processing unit sent feedforward demand signal in advance to power supply unit, and power supply unit is supplied the modulation electric current to processing unit according to feedforward demand signal correspondence.
The present invention discloses a kind of feed forward control method of electric current pulse wave, may further comprise the steps: at first, a power supply unit normality is supplied initial current to a processing unit.Then, before processing unit changed an operation efficiency, processing unit sent a feedforward demand signal in advance to power supply unit.Power supply unit is supplied a modulation electric current to processing unit according to feedforward demand signal correspondence.
Effect of the present invention is, make power supply unit learn in advance the processing unit required electric power, make power supply unit provide the modulation electric current of unregulated power drop to processing unit in feedforward control (feed-forward control) mode in advance, therefore the power supply speed of power supply unit is able to rapid reaction and instant the adjustment, avoids occurring occurring because feedback control (feed-back control) mode causes the time interval of modulation electric current.
More therefore further the present invention reduces the configuration quantity of capacitor, more dwindles with the area of reaching computer motherboard, and reduces the effect such as manufacturing cost.
About feature of the present invention, implementation and effect, hereby cooperate graphicly to be described in detail as follows as most preferred embodiment.
[description of drawings]
Figure 1A is the electric power system synoptic diagram of the pulse wave width modulation unit of known technology.
Figure 1B is another electric power system synoptic diagram of the pulse wave width modulation unit of known technology.
Fig. 2 A is the feedforward control system synoptic diagram of one embodiment of the invention.
Fig. 2 B is the flow chart of steps of feed forward control method of the present invention.
Fig. 3 A is the feedforward control system synoptic diagram of another embodiment of the present invention.
Fig. 3 B is the flow chart of steps of the feed forward control method of another embodiment of the present invention.
The feedforward control system synoptic diagram of Fig. 4 A further embodiment of this invention.
Fig. 4 B is the flow chart of steps of the feed forward control method of further embodiment of this invention.
The main element symbol description:
100 electric power systems, 110 processing units
120 pulse wave modulation unit, 130 capacitors
200 feedforward control systems, 210 processing units
220 power supply units, 230 detecting units
S1 feedforward demand signal S2 rear feed demand signal
C1 initial current C2 modulation electric current
Step 340 is with the demand current value of detecting unit detecting processing unit
Step 350 processing unit is the corresponding generation of current value feedforward demand signal according to demand, and sends feedforward demand signal to power supply unit
[embodiment]
Please refer to Fig. 2 A, be the feedforward control system synoptic diagram of one embodiment of the invention.The present invention has disclosed a kind of feedforward control system 200 of pulse wave electric current, comprises a processing unit 210 and a power supply unit 220.Wherein, processing unit 210 can be a graphic process unit (GPU) or a central processing unit (CPU), but not as limit.And the power supply unit 220 of present embodiment can be a pulse width modulation power supply unit (PWM Unit), but this is not limited in the present invention.
Please refer to Fig. 2 B, be the flow chart of steps of feed forward control method of the present invention, and please continue to cooperate with reference to Fig. 2 A.The present invention discloses the feed forward control method of the electric current pulse wave of an embodiment, may further comprise the steps: at first, a power supply unit 220 normalities supply initial current C1 to a processing unit 210 (steps 310).Then, before processing unit 210 changes an operation efficiency, processing unit 210 sends a feedforward demand signal S1 in advance to power supply unit 220 (step 320), and power supply unit 220 is namely supplied a modulation electric current C2 to processing unit 210 (step 330) according to feedforward demand signal S1 correspondence.Wherein, modulation electric current C2 is not to be certain value, but power supply unit 220 is adjusted modulation electric current C2 according to feedforward demand signal S1 with correspondence.
In the above-mentioned steps 330, described power supply unit 220 to processing unit 110, is then got back to step 310 according to the corresponding supply of feedforward control signal S1 modulation electric current C2, and this time modulation electric current C2 redefines and is initial current C1.
Please refer to Fig. 3 A and Fig. 4 B, be feedforward control system synoptic diagram and the flow chart of steps of another embodiment of the present invention.Wherein, the feedforward control system 200 of another embodiment that the present invention discloses further comprises a detecting unit 230 except the processing unit 210 that comprises mutual electric connection and power supply unit 220.In above-mentioned steps 320, comprise the following steps: that further detecting unit 230 is to be electrically connected at processing unit 210, and the demand current value (step 340) with detecting unit 230 detecting processing units 210, processing unit 210 is the corresponding generation of current value feedforward demand signal S1 according to demand, and sends feedforward demand signal S1 to power supply unit 220 (step 350).
Please refer to Fig. 4 A and Fig. 4 B, be feedforward control system synoptic diagram and the flow chart of steps of another embodiment of the present invention.Wherein, the feedforward control system 200 of another embodiment that the present invention discloses after above-mentioned steps 330, further may further comprise the steps: wherein, detecting unit 230 is further detected the modulation current value that is supplied to processing unit 210, and the demand current value of processing unit 210.When if modulation current value and demand current value are not mated, for example the modulation current value is lower than the demand current value, or the modulation current value is higher than in the situation of demand current value, processing unit 210 all can send a rear feed (feed-back) demand signal S2 to power supply unit 220 (step 360), makes power supply unit 220 provide and adjust the modulation electric current C2 (step 370) that is delivered to processing unit 210 according to rear feed demand signal S2 correspondence.Wherein detecting unit 230 is an integrated circuit.
The feedforward control system of pulse wave electric current of the present invention and control method thereof, by feedforward control (feed-forward control) mode, can make power supply unit learn in advance the electric power that processing unit is required, and make power supply unit provide the modulation electric current of unregulated power drop to processing unit in advance, so that the energy rapid reaction of the power supply speed of power supply unit and instant the adjustment, the time interval of avoiding the modulation electric current occurring occurs, and the quantity that further reduces capacitor is reached the area reducing of computer motherboard.
In addition, see through feedback control (feed-back control) mode and cooperate feed forward control method, when making feed forward control method can't modulation offer the electric current of processing unit, can be according to the change in voltage of processing unit, in good time adjustment offers the electric current of processing unit, to guarantee the processing unit required electric power problem of electric power drop does not occur.
Although embodiments of the invention disclose as mentioned above; so be not to limit the present invention; anyly have the knack of related art techniques person; without departing from the spirit and scope of the present invention; such as according to the described shape of the present patent application scope, structure, feature and quantity when can doing a little change, therefore scope of patent protection of the present invention must be looked the appended claim person of defining of this instructions and is as the criterion.
Claims (10)
1. the feed forward control method of a pulse wave electric current is characterized in that, comprises the following steps:
One power supply unit normality is supplied initial current to a processing unit;
Before this processing unit changed an operation efficiency, this processing unit sent a feedforward demand signal in advance to this power supply unit; And
This power supply unit is supplied a modulation electric current to this processing unit according to this feedforward demand signal correspondence.
2. the feed forward control method of pulse wave electric current according to claim 1 is characterized in that, wherein this processing unit sends this feedforward demand signal in advance to the step of this power supply unit, further comprises the following steps:
Detect a demand current value of this processing unit with a detecting unit; And
This processing unit produces this feedforward demand signal according to this demand current value is corresponding, and sends this feedforward demand signal to this power supply unit.
3. the feed forward control method of pulse wave electric current according to claim 1 is characterized in that, wherein in this power supply unit according to this feedforward demand signal corresponding for should the modulation electric current to the step of this processing unit, more comprise the following steps:
Be supplied to a demand current value of this modulation current value and this processing unit of this processing unit with detecting unit detecting;
If this modulation current value and this demand current value are not mated, the corresponding generation of this processing unit is also sent a rear feed demand signal to this power supply unit; And
This power supply unit is according to corresponding this modulation electric current that is delivered to this processing unit of adjusting of this rear feed demand signal.
4. the feedforward control system of a pulse wave electric current is characterized in that, comprising:
One processing unit optionally produces a feedforward demand signal; And
One power supply unit is electrically connected to this processing unit, and this power supply unit normality provides an initial current to this processing unit, and optionally provides a modulation electric current to this processing unit;
Wherein, before this processing unit changed operation efficiency, this processing unit sent this corresponding feedforward demand signal in advance to this power supply unit, this power supply unit according to the corresponding confession of this feedforward demand signal should the modulation electric current to this processing unit.
5. the feedforward control system of pulse wave electric current according to claim 4, it is characterized in that, wherein further comprise a detecting unit, be electrically connected at this processing unit, this detecting unit is detected a demand current value of this processing unit, and this processing unit sends this feedforward demand signal to this power supply unit according to this demand current value.
6. the feedforward control system of pulse wave electric current according to claim 5 is characterized in that, wherein this detecting unit is an integrated circuit.
7. the feedforward control system of pulse wave electric current according to claim 4 is characterized in that, wherein this processing unit is a graphic process unit (GPU) or a central processing unit (CPU).
8. the feedforward control system of pulse wave electric current according to claim 4, it is characterized in that, wherein further comprise a detecting unit, be electrically connected to this processing unit, this detecting unit is detected this demand current value of this modulation current value and this processing unit, and make this processing unit selectivity send a corresponding rear feed demand signal to this power supply unit, make corresponding this modulation electric current of adjusting of this power supply unit.
9. the feedforward control system of pulse wave electric current according to claim 8 is characterized in that, wherein this detecting unit is an integrated circuit.
10. the feedforward control system of pulse wave electric current according to claim 4 is characterized in that, wherein this power supply unit is a pulse width modulation power supply unit (PWM Unit).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110185716.XA CN102866756B (en) | 2011-07-04 | The feedforward control system of pulse current and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110185716.XA CN102866756B (en) | 2011-07-04 | The feedforward control system of pulse current and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102866756A true CN102866756A (en) | 2013-01-09 |
| CN102866756B CN102866756B (en) | 2016-12-14 |
Family
ID=
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1716160A (en) * | 2004-06-30 | 2006-01-04 | 技嘉科技股份有限公司 | Switching power supply system and its method for automatic regulating circuit work power |
| US20090033307A1 (en) * | 2007-03-23 | 2009-02-05 | Power Integrations, Inc. | Method and apparatus for a high voltage power supply circuit |
| CN101661326A (en) * | 2009-08-25 | 2010-03-03 | 威盛电子股份有限公司 | Image processing module, power-saving computer system and power-saving method thereof |
| CN101753017A (en) * | 2008-12-17 | 2010-06-23 | 半导体元件工业有限责任公司 | Method for changing an output voltage and circuit therefor |
| CN101802742A (en) * | 2007-09-19 | 2010-08-11 | 富士通株式会社 | Power unit and electronic device |
| CN102044966A (en) * | 2009-10-26 | 2011-05-04 | 立锜科技股份有限公司 | Control circuit and control method for power converter with adaptive voltage position control |
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1716160A (en) * | 2004-06-30 | 2006-01-04 | 技嘉科技股份有限公司 | Switching power supply system and its method for automatic regulating circuit work power |
| US20090033307A1 (en) * | 2007-03-23 | 2009-02-05 | Power Integrations, Inc. | Method and apparatus for a high voltage power supply circuit |
| CN101802742A (en) * | 2007-09-19 | 2010-08-11 | 富士通株式会社 | Power unit and electronic device |
| CN101753017A (en) * | 2008-12-17 | 2010-06-23 | 半导体元件工业有限责任公司 | Method for changing an output voltage and circuit therefor |
| CN101661326A (en) * | 2009-08-25 | 2010-03-03 | 威盛电子股份有限公司 | Image processing module, power-saving computer system and power-saving method thereof |
| CN102044966A (en) * | 2009-10-26 | 2011-05-04 | 立锜科技股份有限公司 | Control circuit and control method for power converter with adaptive voltage position control |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103376859A (en) | Chip performance control method and device | |
| CN104253542A (en) | Bridgeless power factor correction boost converter | |
| CN103744803A (en) | Power supply component and storage system | |
| JP5960641B2 (en) | Charger | |
| JP4413244B2 (en) | Wireless communication apparatus and power supply method for wireless communication apparatus | |
| US9812952B2 (en) | Enhanced transient response to supply power from energy harvesters | |
| CN103092304B (en) | The power control method of two video card module and the computer apparatus of application the method | |
| US9760143B2 (en) | Switching module, related server device and power switching method | |
| CN105993127B (en) | Motor control system | |
| CN110401260A (en) | A kind of server backup power source and server power supply | |
| CN102866756A (en) | Feed-forward control system for pulse current and control method thereof | |
| CN106200763A (en) | Real Time Clock System based on pulsewidth modulation and method | |
| CN102236400A (en) | Power supply control system and power supply control method of main board management controller | |
| CN102103400A (en) | Power supply device and using method thereof | |
| CN107038140A (en) | A kind of RACK servers and method for avoiding damaging chip when node heat is slotting | |
| CN102200825A (en) | CPU power supply control method and device, and computer | |
| CN102866756B (en) | The feedforward control system of pulse current and control method thereof | |
| JP3174581U (en) | Dual power supply host device | |
| CN113031738A (en) | Chip power supply circuit and method | |
| WO2021134216A1 (en) | Power regulation system, method, and apparatus, chip, and electronic device | |
| CN107579542B (en) | Method, device and system for inhibiting overvoltage of output end of inverter | |
| CN206180289U (en) | Socket control circuit and socket | |
| CN203278240U (en) | Reactive compensation controller of power supply resetting detection technology | |
| EP2757671A1 (en) | A control method and system for assisting active power factor correction loads | |
| US20150074439A1 (en) | System power supply management apparatus and method, and system with power supply energy saving management function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |