CN1877954A - Power supply control device and method for electronic apparatus - Google Patents
Power supply control device and method for electronic apparatus Download PDFInfo
- Publication number
- CN1877954A CN1877954A CN 200510076982 CN200510076982A CN1877954A CN 1877954 A CN1877954 A CN 1877954A CN 200510076982 CN200510076982 CN 200510076982 CN 200510076982 A CN200510076982 A CN 200510076982A CN 1877954 A CN1877954 A CN 1877954A
- Authority
- CN
- China
- Prior art keywords
- input current
- total input
- current
- charging current
- electronic installation
- 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
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses an electric supply control device and method of electronic device, which is characterized by the following: utilizing inner charging current control module and signal feedback control module in the electronic device to transmit electric control signal to remote control transformer through feedback circuit; controlling output voltage supplied by remote transformer; adjusting charging current of battery until the total input current of remote control transformer equals preset higher total input current of electronic device; making the system of electronic device possess enough power finish the needed disposal procedure in the safe condition; improving the efficiency of power utility according to power in the electronic system and battery.
Description
Technical field
The invention relates to a kind of method of power supply control, particularly, reach the method that electric power effectively distributes use relevant for a kind of supply power voltage that utilizes the feedback signal control transformer.
Background technology
The power supply of portable electronic equipment all depends on the external power source supply that is connected with this electronic installation at present provides.The mode that its power supply provides is to utilize the charge controller of this portable electronic equipment inside (Charge controller) that the electric power information is passed to the controller of the transformer inside that is connected with this portable electronic equipment, so that transformer needed electric power suitable charging voltage of battery or electric current can be provided and the portable electronic equipment running is provided the time.And above-mentioned electric power information comprises the voltage of battery, the electric current of battery, and the electricity needs of portable electronic equipment.
Find that through the retrieval back 02 Micro has a relevant prior art (U.S. Patent number: 6,741,066; Title of a cause: Power management for battery powered appliances).Fig. 1 is the device calcspar according to this method for managing power supply illustrated.Wherein electronic installation 110 provides power supply by ac/dc transformer (AC/DC adapter) 120, and supplies with the required electric power of battery (Battery) 112 chargings by charge controller 111 controls.In addition, comprise that a power distributor (Powerconditioning) 113 gives first subsystem 114, second subsystem 115 with distributing electric power, and the 3rd subsystem 116.Wherein also comprise a feedback signal (Feedback control signal) 130, the feedback signal that is produced is returned to AC/DC transformer 120, use the purpose that reaches the control of far-end electric power by charge controller 111.
By finding in the employed power management of the electric power controller that Fig. 1 illustrated, when electronic installation 110 employed power condition presented the situation of an overload, ac/dc transformer 120 can stop immediately avoiding ac/dc transformer 120 that the situation of overload takes place to electronic installation 110 supply electric power and doubt safe in utilization takes place.But,, cause electronic installation 110 generations to work as the phenomenon of machine and cause user's puzzlement with being easy to if ac/dc transformer 120 stops system 110 is powered immediately when electronic installation 110 takes place under the situation of overload.
Summary of the invention
Purpose of the present invention is exactly in power supply control apparatus that a kind of electronic installation is provided and method, it is the output voltage that utilizes charging current control die set control far-end control transformer, and then the charging voltage of adjustment battery, even make electronic installation electric power moment overload, can not cause the far-end control transformer to close yet, cause the unstable generation of system to work as machine, and the present invention also can be according to the demand of the systematic electricity of this electronic installation, to originally be supplied to the charging power of battery, changed into the required electric power of support system.This kind utilizes the supply power voltage of control transformer, to improve the efficient of distributing electric power, not only can guarantee the fail safe that electronic installation uses, and more can improve the service efficiency of electric power, saves the use of electric power.
So the present invention proposes a kind of power supply control apparatus of electronic installation, wherein this electronic installation has a battery and a system, this power supply control apparatus is to comprise: the far-end control transformer, input current detecting module, amplifier, maximum total input current is set module, elements such as charging current control die set and feedback signal control die set, wherein this far-end control transformer provides a total input current to this battery and this system, this input current detecting module is the output that connects this far-end control transformer with receiving terminal, connect this battery and this system respectively with output, this amplifier input terminal is another output that is connected in this input current detecting module, it is to be connected in this amplifier input terminal that the total input current of this maximum is set module, the input of this charging current control die set is the output that is connected in this amplifier, and the input of this feedback signal control die set is the output that is connected in this charging current control die set, and its output is to be connected in this far-end control transformer.The present invention sets the default the highest total input current of module in the total input current of this maximum, value by this this total input current of input current detecting module detecting, and utilize the relatively value of this total input current and this highest total input current of this amplifier, by the feedback signal of this charging current control die set by this feedback signal control die set generation, adjust the output voltage of this far-end control transformer, and then adjust the charging current of supplying with this battery, compare this total input current up to this amplifier and equal this highest total input current.
Power supply control apparatus according to the described electronic installation of preferred embodiment of the present invention, more comprise charging current detecting module between above-mentioned battery and this input current detecting module, the input of this charging current detecting module is the output that connects this system and this input current detecting module respectively, and the output of this charging current detecting module is connected in the input of this feedback signal control die set.
Power supply control apparatus according to the described electronic installation of preferred embodiment of the present invention, more comprise charging voltage setting module between above-mentioned charging current detecting module and this battery, and the input that this charging voltage is set module is to connect this charging current detecting module and this battery respectively, and the output of this charging current detecting module is connected in the input of this feedback signal control die set.
According to the power supply control apparatus of the described electronic installation of preferred embodiment of the present invention, above-mentioned input current detecting module is to comprise: a total input current detecting resistance and a voltage amplifier.
According to the power supply control apparatus of the described electronic installation of preferred embodiment of the present invention, above-mentioned charging current detecting module is to comprise: a charging current detecting resistance and a voltage amplifier.
The present invention also proposes a kind of method for controlling power supply of electronic installation, wherein this electronic installation has a battery and a system, one far-end control transformer supply, one total input current is to this electronic installation, this total input current is to supply this battery a required charging current respectively, and the required load current of this system of supply, this method for controlling power supply comprises: this this total input current of electronic installation monitoring, this charging current, an and default total input current maximum, one maximum charging current and a minimum charge current, and control this far-end control transformer by a feedback signal, this charging current is between this maximum charging current and this minimum charge current; This electronic installation of the person of connecing can judge whether this total input current equates with this highest total input current, if equate, just need not do any adjustment certainly, continues monitoring and gets final product; If it is unequal then have two kinds of situations, (1) when this total input current greater than this total input current maximum, reduce the output voltage of this far-end control transformer gradually by this feedback signal control, this charging current is reduced gradually, equal this back lasting monitoring of high total input current up to this total input current, if charging current has been reduced to default minimum charge current, then no longer downgrade charging current, total input current of this moment may be higher than total input current maximum; (2) when this total input current less than this total input current maximum, control the output voltage of this far-end control transformer that raises gradually by this feedback signal, this charging current is raise gradually, equal this back lasting monitoring of high total input current up to this total input current, but if charging current has reached the maximum charging current set point, then charging current no longer improves, and the input total current of this moment can be lower than the highest input current.
According to the method for controlling power supply of the described electronic installation of preferred embodiment of the present invention, the maximum current that above-mentioned maximum charging current can bear smaller or equal to this battery.
According to the method for controlling power supply of the described electronic installation of preferred embodiment of the present invention, approximate 0 ampere of above-mentioned minimum charge current.
For above-mentioned and other purposes, 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 electric power controller calcspar according to known techniques illustrated.
Fig. 2 is the electric power controller calcspar that illustrates according to preferred embodiment of the present invention.
Fig. 3 is the method for controlling power supply flow chart of the electronic installation that illustrates according to preferred embodiment of the present invention.
S310～S350: according to each step of the method for controlling power supply of the described a kind of electronic installation of preferred embodiment of the present invention
110: electronic installation
111: charge controller (Charge Controller)
112: battery (Battery)
113: power distributor (Power Conditioning)
114: the first subsystems (First Subsystem)
115: the second subsystems (Second Subsystem)
116: the three subsystems (Third Subsystem)
120: ac/dc transformer (AC/DC Adapter)
130: feedback signal (Feedback Control Signal)
210: electronic installation
211a: total input current detecting module
211b: charging current detecting module
212: battery
213: system
214: maximum total input current is set module
215: amplifier
216: the charging current control die set
217: charging voltage is set module
218: the feedback signal control die set
220: the far-end control transformer
230: feedback signal
Embodiment
Fig. 2 is the electric power controller that illustrates according to preferred embodiment of the present invention, wherein electronic installation 210 is except battery 212 and system 213, more comprise: total input current detecting module 211a, charging current detecting module 211b, maximum total input current is set module 214, amplifier 215, charging current control die set 216, charging voltage is set elements such as module 217 and feedback signal control die set 218, by far-end control transformer 220 output currents, supply with battery 212 and system 213 respectively, wherein the output output current of far-end control transformer 220 is in regular turn through current sense module 211a, amplifier 215, after the charging current control die set 216, import feedback signal control die set 218 again, on the other hand, in the electric current of another output output of current sense module 211a behind charging current detecting module 211b, also import feedback signal control die set 218, behind the electric current input charging voltage setting module of exporting by another output of charging current detecting module 211b 217, also import feedback signal control die set 218; All enter the signal of feedback signal control die set 218, be the feedback signal 230 sent by feedback signal control die set 218 input feed-in far-end control transformer 220 internal circuits by far-end control transformer 220, and then control far-end control transformer 220.
Far-end control transformer 220 of the present invention provides total input current I1, is divided into supplying with the charging current I2 that battery 212 chargings are used, and the required load current I3 of feed system 213, so I1=I2+I3.Set the relation of the default total input current maximum I1max of module 214 by monitoring total input current I1 and maximum total input current, determine whether to adjust charging current I2, and then adjust total input current I1, certainly I1max can not surpass 220 of far-end control transformers can provide maximum continuous output current, damages to avoid far-end control transformer 220.When I1＞I1max, downgrade the signal of charging current I2 by 216 outputs of charging current control die set, and, control the output voltage that downgrades far-end control transformer 220 by the feedback signal 230 that feedback signal control die set 218 is exported, and then downgrade charging current I2, up to I1=I1max; With should I1＜during I1max, 216 outputs of charging current control die set increase the signal of charging current I2, increase the output voltage of far-end control transformer 220 with control, and then increase charging current I2, up to I1=I1max.
Feedback signal control die set 218 is signals of being imported by charging current detecting module 211b, predict the value of charging current I2, by the dynamic relation that continues detecting I1 and I1max, dynamically adjust charging current I2, make I1=I1max to improve the service efficiency of electric power.Because the maximum charging current that battery 212 can bear has the limit, so charging current control die set 216 of the present invention is more set a maximum charging current I2max, can only increase I2=I2max to limit charging current I2 maximum, certain also predeterminable minimum charge current I2min of charging current control die set 216, its approximate 0 ampere (but must not be 0 ampere, open circuit to avoid circuit loop to form), can only downgrade I2=I2min so that current limit control die set 216 is minimum, even so design I2 has dropped to I2min, system 213 increases and causes moment I1＞I1max required load current I3 moment, also can not stop the electric current output of far-end control transformer 220, so can generation systems 213 unstable generations not work as machine; Because overloads (Over Loading) take place for system 213 is the situation of moment, can't last very long, so also in the scope that far-end control transformer 220 can bear.As for so-called system 213 is the equipment that comprises software and hardware, is example with the computer: comprise CPU, RAM and OS operating system or the like.
In this preferred embodiment, be to utilize total input current detecting resistance R 1 and voltage amplifier to be combined into total input current detecting module 211a, total input current I1 total input current detecting resistance R 1 of flowing through can produce the small electric pressure drop and send into voltage amplifier again, input amplifier 215 after voltage amplifier amplifies current signal, after amplifier 215 is obtained the value of total input current I1, the value of total input current I1 is compared with total input current maximum I1max that maximum total input current setting module 214 sets, when I1＞I1max, the 213 required load current I3 of table system increase, this moment, the 216 meeting outputs of charging current control die set downgraded the reference signal I2ref of charging current I2, make I2ref come down to lower I2ref ' by the script value, and pass through feedback signal 230 and control the output voltage that reduces far-end control transformers 220, and then the output of reduction charging current I2, make I2=I2ref "; still continue the relation of monitoring I1 and I1max certainly; if I1 is still greater than I1max; charging current control die set 216 can downgrade into I2ref with the charging current maximum by I2ref ' again automatically once more ", and pass through feedback signal 230 and control the output voltage that reduces far-end control transformers 220, and then the output of reduction charging current I2, make I2=I2ref "; so continue the output that the monitoring comparison also downgrades charging current I2 gradually, till I1=I1max; In like manner otherwise when I1＜I1max, the 213 required load current I3 of table system reduce, and this moment, charging current control die set 216 can output increases the signal of charging current I2, I2 are increased gradually, till I1=I1max by value originally.So continue the relation of monitoring comparison I1 and I1max, output voltage by charging current control die set 216 motor-driven adjustment far-end control transformers 220, and then the output of adjustment charging current I2, make total input current I1 can effectively distribute to battery 212 and use with system 213.
In like manner in this preferred embodiment, also be to utilize charging current detecting resistance R 2 and voltage amplifier to be combined into charging current detecting module 211b, the charging current I2 charging current detecting resistance R 2 of flowing through can produce the small electric pressure drops and send into voltage amplifier again, input feedback signal control die set 218 after voltage amplifier amplifies current signal, again by feedback signal 230 control far-end control transformers 220, with the value of monitoring charging current I2.The present invention more can set the charging voltage of module 217 monitoring batteries 212 by charging voltage, and with default reference voltage Vref relatively after, control far-end control transformers 220 by the feedback signal 230 that feedback signal control die set 218 is sent, make charging voltage can not surpass the maximum charging voltage that battery 212 can bear, to guarantee the safety of battery 212.
Fig. 3 is the method for controlling power supply flow chart of the electronic installation that illustrates according to preferred embodiment of the present invention.
At first carry out step S310, by the total input current of far-end control transformer supply 11 to electronic installation, wherein electronic installation has a battery and a system, total input current I1 supplies this battery and this system respectively, the part of supply battery is charging current I2, and the part of supply system is load current I3, certainly I1=I2+I3.
Carry out step S320, electronic installation is monitored total input current I1 and charging current I2, wherein in electronic installation, preset a total input current maximum (I1max), one maximum charging current (I2max) and a minimum charge current (I2min), and control this far-end control transformer by a feedback signal.Furtherly, the maximum current that I2max can bear smaller or equal to battery, to guarantee the safety of electronic installation, and its setting of I2min is similar to 0 ampere, electronic installation can limit charging current (I2min≤I2≤I2max) between maximum charging current and this minimum charge current, I2 is minimum can only to downgrade I2min to limit, even so design I2 has dropped to I2min, system increases and causes moment I1＞I1max required load current I3 moment, can't stop the electric current output of far-end control transformer, so can generation systems the phenomenon of reliable machine not, certainly this is because system's generation overload is the situation for moment, can't last very long, also in the designed safe range of far-end control transformer.
Carry out step S330, compare I1 and I1max, this moment, electronic installation can judge whether I1 equals I1max, if equate, then need not do any adjustment, continued total input current I1 of monitoring and charging current I2 and got final product; If it is unequal then have two kinds of situations, (1) as I1＞I1max, then carry out step S340, reduce the output voltage of far-end control transformer gradually by feedback signal control, charging current is reduced gradually up to total input current I1 equal the highest total input current I1max, and continue total input current I1 of monitoring and charging current I2; (2) as I1＜I1max, then carry out step S350, by raise the gradually output voltage of this far-end control transformer of feedback signal control, charging current is raise gradually equal the highest total input current I1max, and continue total input current I1 of monitoring and charging current I2 up to total input current.
In this method for controlling power supply, it is to be continual supervision and adjustment control loop, by comparing the I1max whether I1 equals to preset, makes I1=I1max by adjusting I2, to reach power supply control purpose of the present invention.
In sum, power supply control apparatus and method at electronic installation of the present invention, be the feedback signal control die set of use device in electronic installation inside, power controlling signal is passed through feedback circuit, be conveyed to the far-end control transformer, in order to control the output voltage that the far-end control transformer is supplied with, and then the charging current of adjustment battery, keep total input current that the far-end control transformer supplied with and equal electronic installation the highest default total input current, make electric power can effectively distribute to system and battery, and can not take place the output of far-end control transformer is turned off, cause the unstable generation of system to work as machine.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; anyly have the knack of this skill person; 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 accompanying the claim person of defining.
Claims (10)
1, a kind of power supply control apparatus of electronic installation, wherein this electronic installation has a battery and a system, it is characterized in that this power supply control apparatus comprises:
One far-end control transformer, it provides a total input current to this battery and this system;
One input current detecting module, it is the output that connects this far-end control transformer with receiving terminal, connects this battery and this system respectively with output;
One amplifier, its input are another outputs that is connected in this input current detecting module;
One maximum total input current is set module, and it is to be connected in this amplifier input terminal;
One charging current control die set, its input are the outputs that is connected in this amplifier; And
One feedback signal control die set, its input are the outputs that is connected in this charging current control die set, and its output is to be connected in this far-end control transformer;
Wherein set the default the highest total input current of module in the total input current of this maximum, detect the value of this total input current by this input current detecting module, and utilize relatively this total input current and this value of high total input current of this amplifier, by the feedback signal of this charging current control die set by this feedback signal control die set generation, adjust the output voltage of this far-end control transformer, and then adjust the charging current of supplying with this battery.
2, according to the power supply control apparatus of the described electronic installation of claim 1, it is characterized in that more comprising between wherein said battery and this input current detecting module charging current detecting module, the input of this charging current detecting module is the output that connects this system and this input current detecting module respectively, and the output of this charging current detecting module is connected in the input of this feedback signal control die set.
3, according to the power supply control apparatus of the described electronic installation of claim 2, it is characterized in that more comprising between wherein said charging current detecting module and this battery charging voltage setting module, and the input that this charging voltage is set module is to connect this charging current detecting module and this battery respectively, and the output of this charging current detecting module is connected in the input of this feedback signal control die set.
4,, it is characterized in that wherein said input current detecting module comprises: a total input current detecting resistance and a voltage amplifier according to the power supply control apparatus of the described electronic installation of claim 1.
5,, it is characterized in that wherein said charging current detecting module comprises: a charging current detecting resistance and a voltage amplifier according to the power supply control apparatus of the described electronic installation of claim 2.
6, a kind of method for controlling power supply of electronic installation, this electronic installation has a battery and a system, supply a total input current to this electronic installation by a far-end control transformer, and this total input current is powered respectively to this battery and this system, the part of wherein supplying this battery is to be a charging current, it is characterized in that this method for controlling power supply comprises:
(a) this electronic installation this total input current of monitoring and this charging current, and preset a total input current maximum, and control this far-end control transformer by a feedback signal;
(b) this electronic installation is judged this total input current and the peaked relation of this total input current;
(c) when this total input current greater than this total input current maximum, reduce the output voltage of this far-end control transformer gradually by this feedback signal control, this charging current is reduced gradually, equal this total input current maximum, repeating step (a) up to this total input current; And
(d) when this total input current less than this total input current maximum, control the output voltage of this far-end control transformer that raises gradually by this feedback signal, this charging current is raise gradually equal this total input current maximum, repeating step (a) up to this total input current.
7,, it is characterized in that the maximum current that wherein said total input current maximum can bear smaller or equal to this far-end control transformer according to the method for controlling power supply of the described electronic installation of claim 6.
8,, it is characterized in that wherein said charging current is between a maximum charging current and a minimum charge current according to the method for controlling power supply of the described electronic installation of claim 6.
9, the method for controlling power supply of described electronic installation according to Claim 8 is characterized in that the maximum current that wherein said maximum charging current can bear smaller or equal to this battery.
10,, it is characterized in that approximate 0 ampere of wherein said minimum charge current according to the method for controlling power supply of the described electronic installation of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100769823A CN100525005C (en) | 2005-06-09 | 2005-06-09 | Power supply control device and method for electronic apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100769823A CN100525005C (en) | 2005-06-09 | 2005-06-09 | Power supply control device and method for electronic apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1877954A true CN1877954A (en) | 2006-12-13 |
| CN100525005C CN100525005C (en) | 2009-08-05 |
Family
ID=37510295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100769823A Active CN100525005C (en) | 2005-06-09 | 2005-06-09 | Power supply control device and method for electronic apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100525005C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101667735A (en) * | 2008-09-02 | 2010-03-10 | 日本碍子株式会社 | Method for controlling electric power of secondary batteries |
| WO2014194811A1 (en) * | 2013-06-03 | 2014-12-11 | Mediatek Inc. | Method, device, and adaptor for dynamically adjusting charging current of adaptor to achieve thermal protection and fast charging |
| CN107171376A (en) * | 2016-03-08 | 2017-09-15 | 恩智浦美国有限公司 | Regulation circuit and its method with analog feedback and digital feedback |
| CN109510478A (en) * | 2018-09-14 | 2019-03-22 | 威锋电子股份有限公司 | multi-port power supply device and power supply method thereof |
| CN110311434A (en) * | 2019-05-07 | 2019-10-08 | 美律电子(深圳)有限公司 | Earphone charging system and earphone charging method |
| WO2021114537A1 (en) * | 2019-12-12 | 2021-06-17 | 中车株洲电力机车有限公司 | Charging control method and system for energy storage element, and locomotive |
-
2005
- 2005-06-09 CN CNB2005100769823A patent/CN100525005C/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101667735A (en) * | 2008-09-02 | 2010-03-10 | 日本碍子株式会社 | Method for controlling electric power of secondary batteries |
| CN101667735B (en) * | 2008-09-02 | 2014-04-23 | 日本碍子株式会社 | Method for controlling electric power of secondary batteries |
| WO2014194811A1 (en) * | 2013-06-03 | 2014-12-11 | Mediatek Inc. | Method, device, and adaptor for dynamically adjusting charging current of adaptor to achieve thermal protection and fast charging |
| CN104885328A (en) * | 2013-06-03 | 2015-09-02 | 联发科技股份有限公司 | Method, device, and adaptor for dynamically adjusting charging current of adaptor to achieve thermal protection and fast charging |
| US9929576B2 (en) | 2013-06-03 | 2018-03-27 | Mediatek Inc. | Method, device, and adaptor for dynamically adjusting charging current of adaptor to achieve thermal protection and fast charging |
| CN107171376A (en) * | 2016-03-08 | 2017-09-15 | 恩智浦美国有限公司 | Regulation circuit and its method with analog feedback and digital feedback |
| CN107171376B (en) * | 2016-03-08 | 2022-07-12 | 恩智浦美国有限公司 | Regulating circuit with analog feedback and digital feedback and method thereof |
| CN109510478A (en) * | 2018-09-14 | 2019-03-22 | 威锋电子股份有限公司 | multi-port power supply device and power supply method thereof |
| US10819111B2 (en) | 2018-09-14 | 2020-10-27 | Via Labs, Inc. | Multi-port power supply apparatus and power supplying method thereof |
| CN110311434A (en) * | 2019-05-07 | 2019-10-08 | 美律电子(深圳)有限公司 | Earphone charging system and earphone charging method |
| WO2021114537A1 (en) * | 2019-12-12 | 2021-06-17 | 中车株洲电力机车有限公司 | Charging control method and system for energy storage element, and locomotive |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100525005C (en) | 2009-08-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8232676B2 (en) | Uninterruptible fuel cell system | |
| US7692403B2 (en) | Power control apparatus | |
| CN1877954A (en) | Power supply control device and method for electronic apparatus | |
| CN1578047A (en) | Power management wake-up circuit, method and apparatus | |
| US7688021B2 (en) | Fuel cell and battery systems | |
| US20160344192A1 (en) | Systems and methods for quick dissipation of stored energy from input capacitors of power inverters | |
| US11720135B2 (en) | Systems and methods for quick dissipation of stored energy from input capacitors of power inverters | |
| CN1909314A (en) | Electronic trip device with a power supply circuit means, and circuit breaker comprising such device | |
| CN110739752A (en) | charging circuit and method for automatically adjusting voltage input according to battery voltage | |
| US20190165604A1 (en) | Emergency dimming apparatus | |
| CN102136586A (en) | Fuel cell system and power supply management method thereof | |
| CN1700554A (en) | Power supply system and method for implementing current equalization | |
| US10003199B2 (en) | Battery energy storage system | |
| CN2746630Y (en) | Power supply management wake-up circuit and device | |
| TW201134059A (en) | Uninterruptible power supply and power suppling method thereof | |
| CN116436134A (en) | Power supply circuit, control method of power supply circuit and power supply equipment | |
| CN103259422A (en) | Power supply device | |
| US10886744B2 (en) | Power conversion system, power supply system and power conversion device | |
| CN112271775A (en) | Power supply device and power supply method thereof | |
| CN100574043C (en) | Electric power system and electric power system method of operation with far-end control circuit | |
| CN1627221A (en) | Method for adjusting output voltage of fuel cell and adjusting device used | |
| TW201123682A (en) | Solar storage system and method of charge using the same | |
| CN101883462B (en) | Constant current control method and circuit of multipath paralleled LED power supply | |
| CN200966006Y (en) | Two-segment charger circuit | |
| US20230327448A1 (en) | Power conversion system |
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 |