CN100341224C - Duplex battery power line for mobile communication terminal - Google Patents
Duplex battery power line for mobile communication terminal Download PDFInfo
- Publication number
- CN100341224C CN100341224C CNB2005100536965A CN200510053696A CN100341224C CN 100341224 C CN100341224 C CN 100341224C CN B2005100536965 A CNB2005100536965 A CN B2005100536965A CN 200510053696 A CN200510053696 A CN 200510053696A CN 100341224 C CN100341224 C CN 100341224C
- Authority
- CN
- China
- Prior art keywords
- battery
- voltage
- switch
- regulating part
- power source
- 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.)
- Expired - Fee Related
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0262—Details of the structure or mounting of specific components for a battery compartment
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2201/00—Electronic components, circuits, software, systems or apparatus used in telephone systems
- H04M2201/34—Microprocessors
Abstract
The present invention relates to a duplex battery power line for mobile communication terminal which includes voltage regulation part, the first voltage comparison part, the second voltage comparison part, switch (SW1~SW11) and controlling part. The voltage regulation part adjusts the voltage grades to make them inosculate nearly when the power of the first battery and the second battery exchange; the first voltage comparison part compares the voltage of the first battery and the voltage grade of the second battery adjusted by the voltage regulation; the second voltage comparison part compares the voltage of the second battery and the voltage grade of the first battery adjusted by the voltage regulation part; the controlling part controls all switches to complete the automatic alternation of the battery. This invention transforms the power automatically under the status of keeping the power connection and without using the big capacity capacitor.
Description
Technical field
The present invention relates to a kind of duplex battery power line of mobile communication terminal, especially relate to a kind of when a battery discharges its voltage step-down, do not use under large value capacitor and the situation that keeps power supply to be connected, can make voltage that drastic change does not take place and the duplex battery power line of the mobile communication terminal of automatic conversioning power.
Background technology
The portable terminal of listing consumes a large amount of power supplys along with the interpolation of multimedia function recently, even increased the battery capacity that is installed on the terminal, but charging capacity is limited, therefore its problem points is: conversing or using when consuming whole power supply in the additional function, the dropped calls of having to or interrupt just in use additional function after change battery.
Summary of the invention
For solving described problem, the objective of the invention is to: provide a kind of and do not using large value capacitor and keeping under the situation of power supply, battery discharges and during its voltage step-down, can make voltage drastic change not take place and the mobile communication terminal duplex battery power line of automatic conversioning power.
For reaching described purpose, the duplex battery power line of mobile communication terminal of the present invention comprises: voltage regulating part, and the regulation voltage grade makes its approximate coincideing when the power source conversion of the first battery BAT1 and the second battery BAT2; The first voltage comparing section, the electric pressure of the second battery BAT2 that regulates to the voltage of the described first battery BAT1 with by voltage regulating part compares; The electric pressure of the first battery BAT1 that the second voltage comparing section is regulated to the voltage of the described second battery BAT2 with by described voltage regulating part compares; The tenth switch SW 10 and the 11 switch SW 11, the power supply with the described first battery BAT1 and the second battery BAT2 is linked into described voltage regulating part respectively; First switch SW, 1, the three switch SW 3, octavo are closed SW8, and the power supply that connects described first battery makes it become the main power source of terminal; Minion is closed SW7, the 9th switch SW 9, and the power supply that connects described second battery makes it become the main power source of terminal; The 4th switch SW 4 will be linked into the first voltage comparing section by first cell voltage of described voltage regulating part adjusting or second cell voltage of regulating by described voltage regulating part; The 5th switch SW 5 will be linked into the second voltage comparing section by first cell voltage of described voltage regulating part adjusting or second cell voltage of regulating by described voltage regulating part; The second voltage comparing section; The 3rd switch SW 3 and the 6th switch SW 6 will connect into main power source by first battery, second cell voltage that described voltage regulating part is regulated respectively; Second switch SW2 is linked into the power supply of described first battery comparing section of first power supply; Control part is controlled described all switches and is finished replacing automatically of battery.
Described control part is first battery during as the main power source of terminal, controls under the state that all switch SW 1～SW11 have disconnected closed octavo and closes the SW8 and first switch SW 1.
Described control part is depleted and need substitute with second battery time at the power supply of first battery, it is consistent with the described first battery supply grade that the voltage that reduces by second battery by voltage regulating part is adjusted to it, to cut off first battery supply after the main power source connection of this supply voltage as terminal, again after being transferred to the virtual voltage of second battery on second cell voltage that reduces by described voltage regulating part, obstructed overvoltage adjusting portion and only the main power source of the voltage of second battery as terminal, thus complete battery formed alternately.
Closed the 11 switch SW of described control part 11 backs are linked into the second battery BAT2 on the voltage regulating part, then closed second switch SW2, the 4th switch SW 4 backs are linked into the first voltage comparing section first cell voltage with by the voltage that voltage regulating part is conditioned second battery of electric pressure, for the comparative voltage that does not make described first voltage comparing section output produces difference and controls its voltage regulating part, second cell voltage is lowered to the first battery supply grade afterwards.
When described control part matches at the voltage of first battery with by the electric pressure that voltage regulating part is exported, for the power supply of second battery by voltage regulating part output as the main power source supply, closed the 3rd switch SW 3 and disconnect first switch SW 1, second switch SW2, thus the power supply of first battery cut off.
In order to make not by power adjustment portion, and can provide main power source according to second battery fully, closed the 5th switch SW 5, minion are closed SW7, to be linked into the second voltage comparing section by second cell voltage and second cell voltage that voltage regulating part is regulated grade output, and control voltage regulating part then and make between described two voltages and do not have difference.
Described control part is regulated the second cell voltage grade of grade output when consistent at second cell voltage with by voltage regulating part, after utilizing the 6th switch SW 6 to make the output voltage short circuit of second battery and voltage regulating part, disconnect the 4th switch SW 4, the 5th switch SW the 5, the 11 switch SW 11, be linked into the voltage of the voltage regulating part and the second voltage comparing section and in second battery, cut off, thereby make second cell voltage close the main power source that SW8 becomes terminal by minion pass SW7, the 6th switch SW 6, the 3rd switch SW 3, octavo.
Described control part makes second battery supply close SW8 as the 6th switch SW 6, the 3rd switch SW 3, the octavo of the branch road of the main power source connection of terminal by closure the 6th switch SW 9 and disconnection, thereby formation replaces main power source by the terminal of second battery fully.
Main points of the present invention are to provide a kind of and converse or not interrupted device when using additional function, promptly, after on the terminal first battery and another second battery being installed, when the power supply of first battery all is consumed, make the electric pressure of second source consistent, thereby make its no-voltage change ground be transformed into second battery automatically with the present electric pressure of first battery.
Beneficial effect of the present invention is: battery discharges and during its voltage step-down, not using under large value capacitor and the situation that keeps power supply to be connected, can make voltage drastic change not take place and automatic conversioning power.
Description of drawings
Fig. 1 is the structural framing figure according to the duplex battery power line of mobile communication terminal of the present invention;
Fig. 2 is the line map of the voltage comparing section detailed structure among the described Fig. 1 of diagram;
Fig. 3 is the line map of the voltage regulating part detailed structure among the described Fig. 1 of diagram.
The symbol description of accompanying drawing major part:
BAT1: the first battery BAT2: second battery
101: 102: the first voltage comparing sections of voltage regulating part
103: the second voltage comparing sections
SW1～SW11: switch
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated.
At first, for the additional reference marks of the inscape of each figure, same inscape is also represented with prosign on other accompanying drawing.
And, to the invention provides more comprehensive understanding and proposed many specific detail in order to give in the following description as concrete handling process etc., the present invention also can be implemented under the condition of these specific detail not having, and the people who has common knowledge in this technical field is very clear to this point.
In addition, think function of knowing altogether and the formation of obscuring main points of the present invention unnecessary, omit its detailed description in the present invention.
Fig. 1 is the structural framing figure according to the duplex battery power line of mobile communication terminal of the present invention, comprising: voltage regulating part 101, and the regulation voltage grade makes its approximate coincideing when the power source conversion of the first battery BAT1 and the second battery BAT2; The first voltage comparing section 102, the electric pressure of the second battery BAT2 that regulates to the voltage of the described first battery BAT1 with by voltage regulating part compares; The second voltage comparing section 103, the electric pressure of the first battery BAT1 that regulates to the voltage of the described second battery BAT2 with by described voltage regulating part compares; The tenth switch SW the 10, the 11 switch SW 11 is linked into described voltage regulating part with the power supply of the described first battery BAT 1 and the second battery BAT2; First switch SW 1, the 3rd switch SW 3, octavo are closed SW8, minion is closed SW7, the 9th switch SW 9, and the power supply that connects described first battery, second battery makes it become the main power source of terminal; The 4th switch SW 4, the 5th switch SW 5 will be linked into the first voltage comparing section, the second voltage comparing section by first battery, second cell voltage that described voltage regulating part is regulated; The 3rd switch SW 3, the 6th switch SW 6 will connect into main power source by first battery, second cell voltage that described voltage regulating part is regulated; Second switch SW2 is linked into the power supply of described first battery comparing section of first power supply; Control part is controlled described switch and is finished replacing automatically of battery.
At this moment, described voltage comparing section 102/103 as shown in Figure 2, after placing enough big resistance R d between first battery, second battery and the voltage that in voltage regulating part, inserts, link together, and field-effect transistor FET (Field Effect Transistor) etc. is used on each switch.
The two ends concatenation operation amplifier (OP-Amp) of described resistance R d, measure the electric current on first resistance R 1 and second resistance R 2 and measure two voltage differences between the battery, and according to determined result, voltage regulating part 101 as shown in Figure 3, utilize the output voltage of regulation voltage adjusting portions 101 such as DAC, make two voltage differences between the battery become minimum.
The normally used DC/DC converter of described voltage regulating part (Converter) is (max1820) of Maxim company, and output voltage (Vout) is for the voltage (Vout=1.76*VREF) of 1.76 times of reference voltage (VREF) outputs.Therefore, can indiscriminately ad. as one wishes regulate output voltage (with first battery, voltage that second battery is close) by regulating reference voltage (VREF).
Operation and effect thereof to device with described structure is specifically described below.
At first, when the first battery BAT1 was connected as the main power source of terminal, all switch SW 1～SW11 were in down closed (Close) octavo pass SW8 of the state that disconnects (Open) and first switch SW 1.Through certain hour, the power supply of the first battery BAT1 is all consumed under this state, output voltage also can drop to decide under the grade.
Therefore, can only before using terminal, in advance new battery be installed alternately in the past, when continuing to use, will the interrupted problem of additional function in dropped calls or the use take place because of exhausting of battery if alternately do not install.
But,, also can in using terminal, replace automatically on another battery no-voltage change ground with prior installation even battery alternately is not installed among the present invention in advance.
Promptly, the power supply of the first battery BAT1 will exhaust, for replace main power source and closed the 11 switch SW 11 with the second battery BAT2 after second battery is linked on the voltage regulating part 101, then closed second switch SW2 and the 4th switch SW 4 backs are linked into the first voltage comparing section 102 first voltage with by the voltage that voltage regulating part is conditioned second battery of electric pressure.
Then, control part produces difference (not making the output voltage and the electric pressure generation difference of first battery) and controls its voltage regulating part 101 for the comparative voltage that does not make 102 outputs of the described first voltage comparing section.
When the voltage of the aforesaid first battery BAT1 and the electric pressure by voltage regulating part 101 output match, for the power supply of second battery by voltage regulating part output as the main power source supply, closed the 3rd switch SW 3, thus first switch SW 1 disconnected and power supply that second switch SW2 cuts off the first battery BAT1.
Then, as mentioned above, the first time that forms first batteries and second battery by described voltage regulating part 101 is behind the blocked operation, carries out obstructed overvoltage adjusting portion and fully by the conversion operations of second battery power supply.
Promptly, for the voltage of second battery that makes power adjustment portion 101 output consistent with the voltage-regulation of actual second battery output, closed the 5th switch SW 5 and minion are closed SW7, to be linked into the second voltage comparing section 103 by voltage, second cell voltage of voltage regulating part output, and control voltage regulating part then and make between described two voltages and do not have difference.
As mentioned above, when two voltages are consistent, after utilizing switch SW 6 to make the output voltage short circuit (Short) (parallel connection) of second battery and voltage regulating part, cut-off switch the 4th SW4, the 5th switch SW 5 and the 11 switch SW 11, in the second battery BAT2, cut off the voltage that is linked into the voltage regulating part 101 and the second voltage comparing section 103, close the main power source that SW8 becomes terminal thereby the voltage of second battery closes SW7, the 6th switch SW 6, the 3rd switch SW 3 and octavo by minion.
Afterwards, as mentioned above, second battery supply that inserts by branch road closes SW8 by closed the 9th switch SW 9 and the 6th switch SW 6, the 3rd switch SW 3 and the octavo that disconnect another branch road, form fully terminal main power source by second battery alternately.
In addition, among the described embodiment, only to first battery alternately the process of second battery be illustrated, on the contrary,, can replace with the process on-off switch opposite with described process for second battery, first battery alternately.
In sum, the effect of the duplex battery power line of mobile communication terminal of the present invention is: battery discharges and during its voltage step-down, not using under large value capacitor and the situation that keeps power supply to be connected, can make voltage drastic change not take place and automatic conversioning power.
Above embodiment only is used to illustrate the present invention, but not is used to limit the present invention.
Claims (8)
1. the duplex battery power line of a mobile communication terminal is characterized in that: comprising: voltage regulating part, and the regulation voltage grade makes its approximate coincideing when the power source conversion of first battery (BAT1) and second battery (BAT2); The first voltage comparing section, the electric pressure of second battery of regulating to the voltage of described first battery (BAT1) with by voltage regulating part (BAT2) compares; The second voltage comparing section, the electric pressure of first battery of regulating to the voltage of described second battery (BAT2) with by described voltage regulating part (BAT1) compares; The tenth switch (SW10) and the 11 switch (SW11), the power supply with described first battery (BAT1) and second battery (BAT2) is linked into described voltage regulating part respectively; First switch (SW1), the 3rd switch (SW3) and octavo are closed (SW8), and the power supply that connects described first battery makes it become the main power source of terminal; Minion is closed (SW7) and the 9th switch (SW9), and the power supply that connects described second battery makes it become the main power source of terminal; The 4th switch (SW4) will be linked into the first voltage comparing section by first cell voltage of described voltage regulating part adjusting or second cell voltage of regulating by described voltage regulating part; The 5th switch (SW5) will be linked into the second voltage comparing section by first cell voltage of described voltage regulating part adjusting or second cell voltage of regulating by described voltage regulating part; The 3rd switch (SW3) and the 6th switch (SW6) will connect into main power source by first battery, second cell voltage that described voltage regulating part is regulated respectively; Second switch (SW2) is linked into the first voltage comparing section with the power supply of described first battery; Control part is controlled described all switches and is finished replacing automatically of battery.
2. the duplex battery power line of mobile communication terminal according to claim 1, it is characterized in that: described control part is first battery during as the main power source of terminal, and (SW1～SW11) closed octavo is closed (SW8) and first switch (SW1) under the state that has disconnected to control all switches.
3. the duplex battery power line of mobile communication terminal according to claim 1, it is characterized in that: described control part is depleted and need substitute with second battery time at the power supply of first battery, it is consistent with the described first battery supply grade that the voltage that reduces by second battery by voltage regulating part is adjusted to it, to cut off first battery supply after the main power source connection of this supply voltage as terminal, again after being transferred to the virtual voltage of second battery on second cell voltage that reduces by described voltage regulating part, obstructed overvoltage adjusting portion and only the main power source of the voltage of second battery as terminal, thus complete battery formed alternately.
4. according to the duplex battery power line of claim 1 or 3 described mobile communication terminals, it is characterized in that: closed the 11 switch of described control part (SW11) back is linked into second battery (BAT2) on the voltage regulating part, follow closed second switch (SW2), the 4th switch (SW4) back is linked into the first voltage comparing section first cell voltage with by the voltage that voltage regulating part is conditioned second battery of electric pressure, for the comparative voltage that does not make described first voltage comparing section output produces difference and controls its voltage regulating part, second cell voltage is lowered to the first battery supply grade afterwards.
5. according to the duplex battery power line of claim 1 or 3 described mobile communication terminals, it is characterized in that: when described control part matches at the voltage of first battery with by the electric pressure that voltage regulating part is exported, for the power supply of second battery by voltage regulating part output as the main power source supply, closed the 3rd switch (SW3) and disconnect first switch (SW1), second switch (SW2) thus cut off the power supply of first battery.
6. according to the duplex battery power line of claim 1 or 3 described mobile communication terminals, it is characterized in that: in order not pass through power adjustment portion, and provide main power source according to second battery fully, closed the 5th switch (SW5), minion are closed (SW7), to regulate second cell voltage and second cell voltage exported after the grade by voltage regulating part and be linked into the second voltage comparing section, and control voltage regulating part then and make between described two voltages and do not have difference.
7. the duplex battery power line of mobile communication terminal according to claim 6, it is characterized in that: described control part is regulated the second cell voltage grade of exporting after the grade when consistent at second cell voltage with by voltage regulating part, after utilizing the 6th switch (SW6) to make the output voltage short circuit of second battery and voltage regulating part, disconnect the 4th switch (SW4), the 5th switch (SW5), the 11 switch (SW11), be linked into the voltage of the voltage regulating part and the second voltage comparing section and in second battery, cut off, thereby make second cell voltage close (SW7) by minion, the 6th switch (SW6), the 3rd switch (SW3), octavo is closed the main power source that (SW8) becomes terminal.
8. the duplex battery power line of mobile communication terminal according to claim 6, it is characterized in that: described control part makes second battery supply close (SW8) as the 6th switch (SW6), the 3rd switch (SW3), the octavo of the branch road of the main power source connection of terminal by closure the 9th switch (SW9) and disconnection, thereby formation replaces main power source by the terminal of second battery fully.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020040076077A KR100619904B1 (en) | 2004-09-22 | 2004-09-22 | Dual battery power circuit for mobile communication device |
| KR1020040076077 | 2004-09-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1753272A CN1753272A (en) | 2006-03-29 |
| CN100341224C true CN100341224C (en) | 2007-10-03 |
Family
ID=36679992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100536965A Expired - Fee Related CN100341224C (en) | 2004-09-22 | 2005-03-10 | Duplex battery power line for mobile communication terminal |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100619904B1 (en) |
| CN (1) | CN100341224C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101820184B (en) * | 2009-02-26 | 2013-06-19 | 中国电信股份有限公司 | Communication power supply system |
| CN101581945B (en) * | 2009-06-24 | 2012-05-23 | 深圳市风发科技发展有限公司 | Voltage regulating method, device and system |
| CN203674696U (en) * | 2013-04-12 | 2014-06-25 | 东莞钜威新能源有限公司 | Short circuit protection circuit |
| CN106210208A (en) * | 2016-09-21 | 2016-12-07 | 深圳市金立通信设备有限公司 | A kind of terminal and Double-battery powered method thereof |
| CN109193830A (en) * | 2018-09-07 | 2019-01-11 | 杭州电子科技大学 | A kind of battery of mobile phone method of supplying power to |
| KR20220011966A (en) | 2020-07-22 | 2022-02-03 | 주식회사 엘지에너지솔루션 | Battery charging/discharging control system and method of dual battery |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0645981A (en) * | 1992-07-23 | 1994-02-18 | Matsushita Electric Ind Co Ltd | Portable telephone device |
| US5578875A (en) * | 1993-06-02 | 1996-11-26 | Vtech Communications, Ltd. | Dual battery recharger with backup power feature for use in systems having a base unit and battery-powered portable unit |
| CN1191406A (en) * | 1997-02-10 | 1998-08-26 | 日本电气株式会社 | Portable electronic device and battery pack saving power consumption |
| US6118250A (en) * | 1998-02-20 | 2000-09-12 | Qualcomm Incorporated | Power supply assembly for hand-held communications device |
| JP2004180426A (en) * | 2002-11-27 | 2004-06-24 | Nec Saitama Ltd | Power supply back up circuit of portable telephone |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR970007604B1 (en) * | 1994-04-27 | 1997-05-13 | 삼성전자 주식회사 | Grcuit of exchangin battery automatically |
| JP2798650B2 (en) * | 1996-06-03 | 1998-09-17 | 埼玉日本電気株式会社 | Portable mobile radio communication device |
| KR20000014919U (en) * | 1998-12-31 | 2000-07-25 | 김영환 | Mobile phone power supply |
| KR100313922B1 (en) * | 1999-07-14 | 2001-11-15 | 서평원 | Mobile terminal and method for increasing using time of mobile terminal |
-
2004
- 2004-09-22 KR KR1020040076077A patent/KR100619904B1/en not_active IP Right Cessation
-
2005
- 2005-03-10 CN CNB2005100536965A patent/CN100341224C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0645981A (en) * | 1992-07-23 | 1994-02-18 | Matsushita Electric Ind Co Ltd | Portable telephone device |
| US5578875A (en) * | 1993-06-02 | 1996-11-26 | Vtech Communications, Ltd. | Dual battery recharger with backup power feature for use in systems having a base unit and battery-powered portable unit |
| CN1191406A (en) * | 1997-02-10 | 1998-08-26 | 日本电气株式会社 | Portable electronic device and battery pack saving power consumption |
| US6118250A (en) * | 1998-02-20 | 2000-09-12 | Qualcomm Incorporated | Power supply assembly for hand-held communications device |
| JP2004180426A (en) * | 2002-11-27 | 2004-06-24 | Nec Saitama Ltd | Power supply back up circuit of portable telephone |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100619904B1 (en) | 2006-09-12 |
| KR20060027215A (en) | 2006-03-27 |
| CN1753272A (en) | 2006-03-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100341224C (en) | Duplex battery power line for mobile communication terminal | |
| CN100570937C (en) | Fuel cell system and method | |
| US20030105562A1 (en) | Power output control system for electric vehicle with hybrid fuel cell | |
| CN1906824A (en) | Electric charger | |
| EP1233468A3 (en) | A fuel cell and battery voltage controlling method in a hybrid fuel cell/battery system | |
| CN101467329A (en) | Charging circuit for secondary battery | |
| CA2486364A1 (en) | Operating method of redox flow battery and cell stack of redox flow battery | |
| WO2003083975A3 (en) | Fuel cell operating control system | |
| EP0831571A3 (en) | Charging control system | |
| CN108583340A (en) | A kind of electric automobile power battery system fast charge method | |
| CN1815845A (en) | Battery charging current self-compensating gear of mobile communication terminal and compensating method thereof | |
| CN111556823B (en) | Charging and discharging circuit, vehicle-mounted charging and discharging system and charging and discharging method | |
| CN1578052A (en) | Ac adapter and charging method thereof | |
| CN107154657A (en) | A kind of optimum condition type fuel cell charging station | |
| DE102015200473A1 (en) | Method for transferring a fuel cell system into a stand-by mode and corresponding fuel cell system | |
| CN1252857C (en) | Charging method for accumulator | |
| CN1691463A (en) | Charging device used in recharge-able battery | |
| CN114312489B (en) | Fuel cell engine power control method | |
| CN1549420A (en) | Charger capable of using battery base as bidirectional output and input | |
| CN200973025Y (en) | Automatic charge-discharge circuit of back up batter for autodoor | |
| CN1860657A (en) | Power supply apparatus | |
| CN202190105U (en) | Storage battery charging management circuit | |
| CA2277790A1 (en) | Method for operating a pem fuel cell installation and pem fuel cell installation | |
| CN109552073B (en) | Range extender controller system and method for charging device | |
| CN2645320Y (en) | Electric power unit for airplane |
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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071003 Termination date: 20110310 |