CA2523956A1 - Multiple function current-sharing charging system and method - Google Patents
Multiple function current-sharing charging system and method Download PDFInfo
- Publication number
- CA2523956A1 CA2523956A1 CA002523956A CA2523956A CA2523956A1 CA 2523956 A1 CA2523956 A1 CA 2523956A1 CA 002523956 A CA002523956 A CA 002523956A CA 2523956 A CA2523956 A CA 2523956A CA 2523956 A1 CA2523956 A1 CA 2523956A1
- Authority
- CA
- Canada
- Prior art keywords
- charging current
- rechargeable power
- charging
- power supply
- power supplies
- 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
- 238000000034 method Methods 0.000 title claims abstract 6
- 238000012544 monitoring process Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract 1
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
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
- H02J7/0019—Circuits for equalisation of charge between batteries using switched or multiplexed charge circuits
-
- 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
- H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
- H02J2310/10—The network having a local or delimited stationary reach
- H02J2310/20—The network being internal to a load
- H02J2310/22—The load being a portable electronic device
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
Abstract
Multiple function current-sharing charging systems and methods are provided. Where first and second rechargeable power supplies are connected to a chargi ng system, a first charging current is provided to the first rechargeable power supply and a second charging current is provided to the second rechargeable power supply. Upon detection of a predetermined charge level of one of the rechargeable power supplies, a third charging current is provided to the fir st rechargeable power supply and a fourth charging current is provided to the second rechargeable power supply.
Claims (11)
1. A multiple function current-sharing charging system, comprising:
a power source interface configured to receive energy from a power source;
a power converter connected to the power source and configured to regulate the energy received from the power source and to output charging current;
a plurality of power supply interfaces configured for connection to respective rechargeable power supplies; and a charging controller connected to the power converter to receive the charging current and to the plurality of power supply interfaces, and configured to detect connection of a first rechargeable power supply to a first one of the plurality of power supply interfaces, to determine whether a second rechargeable power supply is connected to a second of the plurality of power supply interfaces, and to provide a first charging current to one of the first and second rechargeable power supplies and a second charging current to the other of the first and second rechargeable power supplies where a second rechargeable power supply is connected to a second of the plurality of power supply interfaces, said first charging current greater than said second charging current;
wherein the charging controller is further configured to determine whether the charge level of the one of the first and second rechargeable power supplies exceeds a threshold and in response provide a third charging current to the one of the first and second rechargeable power supplies and a fourth charging current to the other of the first and second rechargeable power supplies, said third charging current less than said first charging current and said fourth charging current greater than said second charging current.
a power source interface configured to receive energy from a power source;
a power converter connected to the power source and configured to regulate the energy received from the power source and to output charging current;
a plurality of power supply interfaces configured for connection to respective rechargeable power supplies; and a charging controller connected to the power converter to receive the charging current and to the plurality of power supply interfaces, and configured to detect connection of a first rechargeable power supply to a first one of the plurality of power supply interfaces, to determine whether a second rechargeable power supply is connected to a second of the plurality of power supply interfaces, and to provide a first charging current to one of the first and second rechargeable power supplies and a second charging current to the other of the first and second rechargeable power supplies where a second rechargeable power supply is connected to a second of the plurality of power supply interfaces, said first charging current greater than said second charging current;
wherein the charging controller is further configured to determine whether the charge level of the one of the first and second rechargeable power supplies exceeds a threshold and in response provide a third charging current to the one of the first and second rechargeable power supplies and a fourth charging current to the other of the first and second rechargeable power supplies, said third charging current less than said first charging current and said fourth charging current greater than said second charging current.
2. The charging system of claim 1, wherein:
each of the first and second rechargeable power supplies has a corresponding full charging current; and the first charging current is the full charging current of the one of the first and second rechargeable power supplies.
each of the first and second rechargeable power supplies has a corresponding full charging current; and the first charging current is the full charging current of the one of the first and second rechargeable power supplies.
3. The charging system of claim 2, wherein:
the charging system has a maximum charging current; and the second charging current is set to a predetermined level less than an excess charging current by which the maximum charging current exceeds the first charging current.
the charging system has a maximum charging current; and the second charging current is set to a predetermined level less than an excess charging current by which the maximum charging current exceeds the first charging current.
4. The charging system of claim 1, wherein:
each of the first and second rechargeable power supplies has a corresponding full charging current;
the first charging current is the full charging current of the one of the first and second rechargeable power supplies; and the fourth charging current is the full charging current of the other of the first and second rechargeable power supplies.
each of the first and second rechargeable power supplies has a corresponding full charging current;
the first charging current is the full charging current of the one of the first and second rechargeable power supplies; and the fourth charging current is the full charging current of the other of the first and second rechargeable power supplies.
5. A current-sharing charging method for a multiple function charging system, comprising the steps of:
detecting connection of a first rechargeable power supply to the charging system;
determining whether a second rechargeable power supply is connected to the charging system; and where a second rechargeable power supply is connected to the charging system:
providing a first charging current to one of the first and second rechargeable power supplies; and providing a second charging current to the other of the first and second rechargeable power supplies, said first charging current greater than said second charging current;
monitoring a charge level of one of the first and second rechargeable power supplies;
determining whether the charge level of the one of the first and second rechargeable power supplies exceeds a threshold; and where the charge level of the one of the first and second rechargeable power supplies exceeds a threshold:
providing a third charging current to the one of the first and second rechargeable power supplies, said third charging current less than said first charging current; and providing a fourth charging current to the other of the first and second rechargeable power supplies, said fourth charging current greater than said second charging current.
detecting connection of a first rechargeable power supply to the charging system;
determining whether a second rechargeable power supply is connected to the charging system; and where a second rechargeable power supply is connected to the charging system:
providing a first charging current to one of the first and second rechargeable power supplies; and providing a second charging current to the other of the first and second rechargeable power supplies, said first charging current greater than said second charging current;
monitoring a charge level of one of the first and second rechargeable power supplies;
determining whether the charge level of the one of the first and second rechargeable power supplies exceeds a threshold; and where the charge level of the one of the first and second rechargeable power supplies exceeds a threshold:
providing a third charging current to the one of the first and second rechargeable power supplies, said third charging current less than said first charging current; and providing a fourth charging current to the other of the first and second rechargeable power supplies, said fourth charging current greater than said second charging current.
6. The method of claim 5, wherein:
each of the first and second rechargeable power supplies has a corresponding full charging current; and one of the first charging current and the second charging current is the full charging current of the corresponding first or second rechargeable power supply.
each of the first and second rechargeable power supplies has a corresponding full charging current; and one of the first charging current and the second charging current is the full charging current of the corresponding first or second rechargeable power supply.
7. The method of claim 6, wherein the second charging current is the full charging current of the second rechargeable power supply, further comprising the steps of:
detecting disconnection of the second rechargeable power supply from the charging system; and providing the full charging current of the first rechargeable power supply to the first rechargeable power supply responsive to detecting disconnection of the second rechargeable power supply.
detecting disconnection of the second rechargeable power supply from the charging system; and providing the full charging current of the first rechargeable power supply to the first rechargeable power supply responsive to detecting disconnection of the second rechargeable power supply.
8. The method of claim 6, further comprising the step of providing the full charging current of the first rechargeable power supply to the first rechargeable power supply where a second rechargeable power supply is not connected to the charging system.
9. A charging controller for controlling amounts of charging current from a power source applied to a plurality of rechargeable power supplies via respective power supply interfaces connected thereto, said charging controller comprising:
detecting means for detecting connection of a first rechargeable power supply to a first one of said power supply interfaces and for detecting connection of a second rechargeable power supply to a second one of said power supply interfaces;
control means for providing a first charging current to one of the first and second rechargeable power supplies and a second charging current to the other of the first and second rechargeable power supplies, said first charging current greater than said second charging current;
testing mews for automatically testing whether the charge level of the one of the first and second rechargeable power supplies exceeds a threshold;
said control means responsive to said testing means for providing a third charging current to the one of the first and second rechargeable power supplies and a fourth charging current to the other of the first and second rechargeable power supplies;
wherein said third charging current is less than said first charging current and said fourth charging current is greater than said second charging current.
detecting means for detecting connection of a first rechargeable power supply to a first one of said power supply interfaces and for detecting connection of a second rechargeable power supply to a second one of said power supply interfaces;
control means for providing a first charging current to one of the first and second rechargeable power supplies and a second charging current to the other of the first and second rechargeable power supplies, said first charging current greater than said second charging current;
testing mews for automatically testing whether the charge level of the one of the first and second rechargeable power supplies exceeds a threshold;
said control means responsive to said testing means for providing a third charging current to the one of the first and second rechargeable power supplies and a fourth charging current to the other of the first and second rechargeable power supplies;
wherein said third charging current is less than said first charging current and said fourth charging current is greater than said second charging current.
10. The charging controller of claim 9, wherein said first and fourth charging currents are unequal.
11. The charging controller of claim 9, wherein said third and second charging currents are unequal.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0309804.3 | 2003-04-29 | ||
| GB0309804A GB2401258B (en) | 2003-04-29 | 2003-04-29 | Multiple function current-sharing charging system and method |
| PCT/CA2004/000659 WO2004098019A1 (en) | 2003-04-29 | 2004-04-29 | Multiple function current-sharing charging system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2523956A1 true CA2523956A1 (en) | 2004-11-11 |
| CA2523956C CA2523956C (en) | 2010-10-19 |
Family
ID=33155763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2523956A Expired - Lifetime CA2523956C (en) | 2003-04-29 | 2004-04-29 | Multiple function current-sharing charging system and method |
Country Status (8)
| Country | Link |
|---|---|
| US (5) | US7471059B2 (en) |
| EP (1) | EP1620930B1 (en) |
| AT (1) | ATE462215T1 (en) |
| CA (1) | CA2523956C (en) |
| DE (1) | DE602004026175D1 (en) |
| GB (1) | GB2401258B (en) |
| HK (1) | HK1072504A1 (en) |
| WO (1) | WO2004098019A1 (en) |
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-
2003
- 2003-04-29 GB GB0309804A patent/GB2401258B/en not_active Expired - Lifetime
-
2004
- 2004-04-29 WO PCT/CA2004/000659 patent/WO2004098019A1/en active Search and Examination
- 2004-04-29 AT AT04730170T patent/ATE462215T1/en not_active IP Right Cessation
- 2004-04-29 US US10/834,283 patent/US7471059B2/en active Active
- 2004-04-29 EP EP04730170A patent/EP1620930B1/en not_active Expired - Lifetime
- 2004-04-29 DE DE602004026175T patent/DE602004026175D1/en active Active
- 2004-04-29 CA CA2523956A patent/CA2523956C/en not_active Expired - Lifetime
-
2005
- 2005-04-29 HK HK05103696A patent/HK1072504A1/en not_active IP Right Cessation
-
2008
- 2008-11-20 US US12/275,093 patent/US7714534B2/en not_active Expired - Lifetime
-
2010
- 2010-04-20 US US12/763,721 patent/US7893653B2/en not_active Expired - Lifetime
- 2010-05-07 US US12/775,988 patent/US7816885B2/en not_active Expired - Lifetime
- 2010-10-29 US US12/916,161 patent/US8111039B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US7893653B2 (en) | 2011-02-22 |
| GB2401258B (en) | 2005-06-22 |
| WO2004098019B1 (en) | 2005-01-06 |
| US20090072789A1 (en) | 2009-03-19 |
| EP1620930A1 (en) | 2006-02-01 |
| HK1072504A1 (en) | 2005-08-26 |
| US7471059B2 (en) | 2008-12-30 |
| US20050001590A1 (en) | 2005-01-06 |
| CA2523956C (en) | 2010-10-19 |
| EP1620930B1 (en) | 2010-03-24 |
| WO2004098019A1 (en) | 2004-11-11 |
| US7714534B2 (en) | 2010-05-11 |
| US8111039B2 (en) | 2012-02-07 |
| US20100213899A1 (en) | 2010-08-26 |
| US20110043167A1 (en) | 2011-02-24 |
| US20100201319A1 (en) | 2010-08-12 |
| US7816885B2 (en) | 2010-10-19 |
| ATE462215T1 (en) | 2010-04-15 |
| GB2401258A (en) | 2004-11-03 |
| DE602004026175D1 (en) | 2010-05-06 |
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| EEER | Examination request |