GB2418546A - Mobile phone to mobile phone battery charging - Google Patents
Mobile phone to mobile phone battery charging Download PDFInfo
- Publication number
- GB2418546A GB2418546A GB0421350A GB0421350A GB2418546A GB 2418546 A GB2418546 A GB 2418546A GB 0421350 A GB0421350 A GB 0421350A GB 0421350 A GB0421350 A GB 0421350A GB 2418546 A GB2418546 A GB 2418546A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mobile phone
- power source
- electrical energy
- charging
- charging device
- 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.)
- Withdrawn
Links
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
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
- H02J7/0044—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction specially adapted for holding portable devices containing batteries
-
- 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
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/342—The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
A charging device for charging a first power source of a first mobile phone 2 using electrical energy supplied by a second power source of a second mobile phone 1 is disclosed. The charging device 3 comprises a first connector 5 for connecting to a charging connector on the first mobile phone; a second connector 4 for connecting to an accessory connector on the second mobile phone, the accessory connector being adapted to supply electrical energy, in use, from the second power source; and a converter coupled to the first and second connectors for converting electrical energy received, in use, from the second power source via the accessory and second connectors into a form suitable for charging the first power source and supplying the converted electrical energy to the first power source via the first and charging connectors.
Description
CHARGING DEVICE
This invention relates to a device for charging a mobile phone's power source.
The use of mobile phones is now all but ubiquitous in both business and personal arenas. A typical mobile phone comprises a handset to which is attached a power source, typically a battery, to provide electrical energy to the device. The batteries are invariably rechargeable, and the user of a mobile phone will recharge the battery using a charger that is connected to a permanent fixed mains supply in his home or office. However, it is not uncommon for a user to forget to do this at the appropriate time, or indeed for the battery to be discharged sooner than anticipated, leaving the user without the possibility of using the mobile phone until such a time as he can recharge the battery. This is obviously extremely inconvenient at the least.
It is possible to buy zinc air batteries that are supplied in a sealed enclosure. On exposure to air by opening the enclosure, the battery is capable of supplying sufficient electrical energy to operate the mobile phone for some time. However, these batteries suffer from the disadvantage that they cannot be recharged, they are relatively expensive and the user of a mobile phone who finds himself without a charged battery must either already possess a zinc air battery or be in a location where he can purchase one.
Other solutions include devices for charging the battery by means of a solar panel or hand driven generator.
Obviously, the solar panel requires bright sunlight in order to work efficiently, and indeed will not work at all at night, whilst using a hand driven generator can be extremely tiring. In any event, these solutions typically do not provide more than a few minutes of usage in practical terms.
According to a first aspect of the present invention, there is provided a charging device for charging a first power source of a first mobile phone using electrical energy supplied by a second power source of a second mobile phone, the charging device comprising a first connector for connecting to a charging connector on the first mobile phone; a second connector for connecting to an accessory connector on the second mobile phone, the accessory connector being adapted to supply electrical energy, in use, from the second power source; and a converter coupled to the first and second connectors for converting electrical energy received, in use, from the second power source via the accessory and second connectors into a form suitable for charging the first power source and supplying the converted electrical energy to the first power source via the first and charging connectors.
Thus, the invention provides a charging device that can recharge the battery in a mobile phone using electrical energy stored in the battery of the second mobile phone.
Therefore, a user of a mobile phone can recharge their flat battery using the mobile phone of a friend or colleague, and such recharging is not reliant on suitable environmental conditions or the availability of zinc air or other suitable batteries.
In one embodiment, the device further comprises an interface circuit coupled to the second connector and adapted to supply a sequence of electrical signals to the second mobile phone in accordance with a first protocol which causes the second mobile phone to supply electrical energy, in use, from the second battery.
Typically, the first power source comprises one or more cells, although other rechargeable power sources, such as capacitors, may be utilised instead.
Again, the second power source typically comprises one or more cells, but it may comprise a fuel cell or any other source of electrical energy.
The converter is any type of converter that is required for converting the electrical energy supplied from the second power source into a form suitable for charging the first power source. Typically, this will be a DC-DC converter.
Normally, the converted electrical energy is at a lower potential than the received electrical energy.
However, it may be at a higher potential than the received electrical energy.
In accordance with a second aspect of the invention, there is provided a charging system comprising a charging device according to any of the preceding claims, the charging device being connected to a first mobile phone and a second mobile phone such that a first power source of the first mobile phone is charged using electrical energy supplied by a second power source of the second mobile phone.
In accordance with a third aspect of the invention, there is provided a method of charging a first power source of a mobile phone, the method comprising receiving electrical energy from a second power source of a second mobile phone, converting the electrical energy into a form suitable for charging the first power source, and supplying the converted electrical energy to the first power source.
In one embodiment, the method further comprises issuing a sequence of electrical signals to the second mobile phone in accordance with a first protocol that causes the second mobile phone to supply electrical energy from the second power source.
An embodiment of the invention will now be described with reference to the accompanying drawings, in which: Figure 1 shows, figuratively, the device; and Figure 2 shows a block diagram of the device in use.
Figure 1 shows a first mobile phone 1 that has a fully or partly-charged battery and a second mobile phone 2 that has a discharged or nearlydischarged battery. A charging device 3 may be connected to the accessory connector of mobile phone 1 by means of connector 4 and to the charging connector of mobile phone 2 by means of connector 5. As shown, the charging device may be in the form of a key ring.
By connecting the two mobile phones 1 and 2 with device 3, the device 3 causes electrical energy to be supplied from the battery of mobile phone 1 to charge the battery in mobile phone 2.
This system is shown in more detail in Figure 2. As can be seen, the charging device 3 is connected to the accessory socket 6 of mobile phone 1 by means of connector 4. In addition, it is connected to a charging connector 7 of mobile phone 2 by means of connector 5. The purpose of accessory socket 6 is typically for connection of cameras, headsets or other accessories for use with a mobile phone, but it can be used to provide power from the battery as in this example. The charging connector 7 of mobile phone 2 is simply used to charge the battery 9 in mobile phone 2.
The operation of the accessory socket 6 will vary depending on the make and model of the mobile phone 1.
However, it is normally required that the connected accessory, in this case the charging device 3 issue a sequence of electrical signals according to a specific protocol to mobile phone 1 to cause it to provide power at the accessory socket 6. An interface circuit 9 is provided on charging device 3 for this purpose.
For example, with one make of mobile phone, if a particular one of the signal lines on the accessory socket 6 is pulled down to zero volts then controller 10 causes a pulse of power to be output from the accessory socket 6.
This pulse of power is used to temporarily operate the interface circuit 9 which then emits an 8 Hz square wave signal on the same line that was previously pulled down, and this 8 Hz signal causes the controller to provide power to the accessory socket 6, for example by closing a switch 11. The battery voltage 8 is then conditioned by means of a power conditioning circuit 12, which may for example, voltage regulate and current limit the power supplied by accessory socket 6. This power is then supplied to the DC- DC converter 13 in charging device 3. This converts the output voltage from the accessory socket 6 of mobile phone 1 into a potential that is suitable for charging the battery 9 in mobile phone 2. The output voltage from the DC-DC converter 13 is then supplied via connector 5 and charging connector 7 to a charging circuit 14 which is operable to recharge the battery 9.
Hence, using the device a discharged battery 9 may be rapidly recharged using charge that is available in the battery 8 of the other mobile phone 1.
Claims (14)
1. A charging device for charging a first power source of a first mobile phone using electrical energy supplied by a second power source of a second mobile phone, the charging device comprising a first connector for connecting to a charging connector on the first mobile phone; a second connector for connecting to an accessory connector on the second mobile phone, the accessory connector being adapted to supply electrical energy, in use, from the second power source; and a converter coupled to the first and second connectors for converting electrical energy received, in use, from the second power source via the accessory and second connectors into a form suitable for charging the first power source and supplying the converted electrical energy to the first power source via the first and charging connectors.
2. A charging device according to claim 1, wherein the device further comprises an interface circuit coupled to the second connector and adapted to supply a sequence of electrical signals to the second mobile phone in accordance with a first protocol which causes the second mobile phone to supply electrical energy, in use, from the second battery.
3. A charging device according to claim 1 or claim 2, wherein the first power source comprises one or more cells.
4. A charging device according to any of the preceding claims, wherein the second power source comprises one or more cells.
5. A charging device according to any of the preceding claims, wherein the second power source comprises a fuel cell.
6. A charging device according to any of the preceding claims, wherein the converter is a DC-DC converter.
7. A charging device according to any of the preceding claims, wherein the converted electrical energy is at a lower potential than the received electrical energy.
8. A charging device according to any of claims 1 to 7, wherein the converted electrical energy is at a higher potential than the received electrical energy.
9. A charging system comprising a charging device according to any of the preceding claims, the charging device being connected to a first mobile phone and a second mobile phone such that a first power source of the first mobile phone is charged using electrical energy supplied by a second power source of the second mobile phone.
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10. A method of charging a first power source of a mobile phone, the method comprising receiving electrical energy from a second power source of a second mobile phone, converting the electrical energy into a form suitable for charging the first power source, and supplying the converted electrical energy to the first power source.
11. A method according to claim 10, further comprising issuing a sequence of electrical signals to the second mobile phone in accordance with a first protocol that causes the second mobile phone to supply electrical energy from the second power source.
12. A device substantially as hereinbefore described with reference to the accompanying drawings.
13. A system substantially as hereinbefore described with reference to the accompanying drawings.
14. A method substantially as hereinbefore described with reference to the accompanying drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0421350A GB2418546A (en) | 2004-09-24 | 2004-09-24 | Mobile phone to mobile phone battery charging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0421350A GB2418546A (en) | 2004-09-24 | 2004-09-24 | Mobile phone to mobile phone battery charging |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB0421350D0 GB0421350D0 (en) | 2004-10-27 |
| GB2418546A true GB2418546A (en) | 2006-03-29 |
Family
ID=33397252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0421350A Withdrawn GB2418546A (en) | 2004-09-24 | 2004-09-24 | Mobile phone to mobile phone battery charging |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2418546A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008085514A2 (en) * | 2007-01-06 | 2008-07-17 | Apple Inc. | Apparatuses and methods that facilitate the transfer of power and information among electrical devices |
| EP2008353A2 (en) * | 2006-04-07 | 2008-12-31 | Nokia Corporation | Method and apparatus for balancing energy between portable devices |
| GB2479062A (en) * | 2010-03-26 | 2011-09-28 | Constantine Kulukundis | Charging one portable device from another |
| US8401473B2 (en) | 2007-01-06 | 2013-03-19 | Apple Inc. | Apparatuses and methods that facilitate the transfer of power and information among electrical devices |
| WO2014006619A1 (en) * | 2012-07-05 | 2014-01-09 | Dvir Harel | Method and system of charging a mobile device |
| US8923525B2 (en) | 2013-02-06 | 2014-12-30 | Zeikos Inc. | Power transferring headphones |
| US9271063B2 (en) | 2013-02-06 | 2016-02-23 | Zeikos Inc. | Power transferring headphones |
| US9276539B2 (en) | 2013-02-06 | 2016-03-01 | Zeikos Inc. | Power transferring headphones |
| US9806772B2 (en) | 2007-01-06 | 2017-10-31 | Apple Inc. | Apparatuses and methods that facilitate the transfer of power and information among radio frequency-based devices |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030050102A1 (en) * | 2001-09-12 | 2003-03-13 | Lg Electronics Inc. | Apparatus and method for charging a mobile device from another mobile device |
| US20040051497A1 (en) * | 2002-09-17 | 2004-03-18 | Richards Scott H. | Charging device for charging a plurality of devices |
-
2004
- 2004-09-24 GB GB0421350A patent/GB2418546A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030050102A1 (en) * | 2001-09-12 | 2003-03-13 | Lg Electronics Inc. | Apparatus and method for charging a mobile device from another mobile device |
| US20040051497A1 (en) * | 2002-09-17 | 2004-03-18 | Richards Scott H. | Charging device for charging a plurality of devices |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2008353A2 (en) * | 2006-04-07 | 2008-12-31 | Nokia Corporation | Method and apparatus for balancing energy between portable devices |
| EP2008353A4 (en) * | 2006-04-07 | 2014-05-07 | Nokia Corp | Method and apparatus for balancing energy between portable devices |
| WO2008085514A2 (en) * | 2007-01-06 | 2008-07-17 | Apple Inc. | Apparatuses and methods that facilitate the transfer of power and information among electrical devices |
| WO2008085514A3 (en) * | 2007-01-06 | 2008-09-25 | Apple Inc | Apparatuses and methods that facilitate the transfer of power and information among electrical devices |
| US8086281B2 (en) | 2007-01-06 | 2011-12-27 | Apple Inc. | Apparatuses and methods that facilitate the transfer of power and information among electrical devices |
| US8401473B2 (en) | 2007-01-06 | 2013-03-19 | Apple Inc. | Apparatuses and methods that facilitate the transfer of power and information among electrical devices |
| US9806772B2 (en) | 2007-01-06 | 2017-10-31 | Apple Inc. | Apparatuses and methods that facilitate the transfer of power and information among radio frequency-based devices |
| GB2479062A (en) * | 2010-03-26 | 2011-09-28 | Constantine Kulukundis | Charging one portable device from another |
| WO2014006619A1 (en) * | 2012-07-05 | 2014-01-09 | Dvir Harel | Method and system of charging a mobile device |
| US8923525B2 (en) | 2013-02-06 | 2014-12-30 | Zeikos Inc. | Power transferring headphones |
| US9271063B2 (en) | 2013-02-06 | 2016-02-23 | Zeikos Inc. | Power transferring headphones |
| US9276539B2 (en) | 2013-02-06 | 2016-03-01 | Zeikos Inc. | Power transferring headphones |
Also Published As
| Publication number | Publication date |
|---|---|
| GB0421350D0 (en) | 2004-10-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |