WO2005109601A1 - Universal recharger for mobile telephones and similar devices - Google Patents
Universal recharger for mobile telephones and similar devices Download PDFInfo
- Publication number
- WO2005109601A1 WO2005109601A1 PCT/ES2005/000193 ES2005000193W WO2005109601A1 WO 2005109601 A1 WO2005109601 A1 WO 2005109601A1 ES 2005000193 W ES2005000193 W ES 2005000193W WO 2005109601 A1 WO2005109601 A1 WO 2005109601A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- current
- recharger
- cable
- recharge
- universal
- Prior art date
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
-
- 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
- H02J7/00304—Overcurrent protection
Definitions
- the present invention relates to a universal recharging device for mobile phones and similar devices, devices that generally incorporate rechargeable batteries.
- the device of the invention serves in an optimal way to recharge the batteries of different devices, especially mobile phones.
- the device comprises a series of elements housed within a housing, with the corresponding connectors for a mains power cable and for another external cable with the corresponding pins or connectors to connect in turn to the device whose battery is desired recharge.
- a power supply consisting of a transformer that provides galvanic isolation and supplies voltage on its secondary capable of recharging, that is, a voltage slightly higher than the nominal recharge batteries.
- a rectifier At the output of the secondary of the transformer there is a rectifier to rectify the alternating current to DC, as well as a filter to eliminate curling.
- the invention proposes that this constitution can be used to provide automatically adaptable voltage and current values to recharge various devices, always within the limit imposed by the nature of the batteries, for example in the case of lithium-ion batteries, whose cells are 3.6 V.
- the improvement consists in having a polarized current regulator at the output of the described power supply at a reference voltage, which limits the current that the device is capable of supplying at a maximum value. This is useful for some mobile phones that incorporate an internal safety circuit, which verifies the initial voltage and maximum current that can be provided from the recharging device, and does not allow recharging if said current can exceed a certain value.
- a voltage regulator is set at a certain output voltage, which is what is required in the recharge.
- recharging depending on the device model recharging as well as the level of charge of your battery, it will demand a greater or lesser amount of current. In case the required current is higher than the maximum supplied by the intensity regulator, it will be limited to this maximum value.
- Figure 1 shows a schematic view of the device of the invention.
- the device 1 of the invention is constituted by a power supply 2, comprising a connector 3 for an external cable, not shown, of mains connection, a protection fuse element 4, a transformer 5 that adapts the incoming mains voltage to suitable values for recharging the batteries, which in the case mobile phones range between 4 and 6 volts, a rectifier 6, and a filter 7, providing a continuous and stabilized output voltage, and providing the galvanic isolation transformer.
- the transformer will preferably be oversized so as to withstand short-circuit currents in the load without problems.
- the output of the power supply is connected to a current regulator 8 which has the purpose of limiting the recharge current that the device can supply to a maximum value, since there are devices on the market that verify the initial voltage and maximum load current that can be supplied from the recharging device, and that do not allow recharging if they detect that a certain maximum current value can be exceeded.
- the current regulator 8, in this non-limiting example of the invention, is based on a PNP transistor, not shown, suitably polarized.
- the device also comprises a voltage regulator 9, preferably consisting of an integrated fixed voltage linear regulator, ideally of low loss in order to increase the performance of the charger and lower the temperature inside the housing 10 containing the various elements that make up the device.
- an LED 12 is implemented in the voltage regulator, witness to the connection of the device to the network.
- the connection of the device to the device whose batteries are intended to be recharged will be made by a cable, not shown, attachable to an output connector 13 of the device.
- This cable may be particular for each model of the device to be recharged, in order to integrate the particular connection pins of the device or, preferably, it may consist of a single cable, not shown, with an end multiple connector.
Abstract
The invention relates to a universal recharger for mobile telephones and similar devices, of the type that comprise a casing from which emerges a cable that can be connected to the electric network. Moreover, the casing is equipped internally with a power source comprising a transformer, a rectifier and a filter, the output thereof producing a filtered direct current which is adapted to recharge a battery of a device using the corresponding cable and a specific connector. According to the invention, a current regulator is disposed at the output of the filter in order to limit the recharge current that can be supplied by the recharger to a maximum value, and a voltage regulator, which is adjusted to a determined output voltage, is disposed next to said current regulator. The cable for connecting the recharger to the device containing batteries that are to be recharged is equipped with a multiway end connector so that it can be connected to different devices.
Description
DISPOSITIVO RECARGADOR UNIVERSAL PARA TELÉFONOS MÓVILES Y APARATOS SIMILARES UNIVERSAL RECHARGEATOR DEVICE FOR MOBILE PHONES AND SIMILAR APPLIANCES
OBJETO DE LA INVENCIÓNOBJECT OF THE INVENTION
La presente invención se refiere a un dispositivo recargador universal para teléfonos móviles y aparatos similares, aparatos que en general incorporen baterías recargables .The present invention relates to a universal recharging device for mobile phones and similar devices, devices that generally incorporate rechargeable batteries.
ANTECEDENTES DE LA INVENCIÓNBACKGROUND OF THE INVENTION
En la actualidad se conocen muy diversos aparatos que funcionan con baterías recargables, entre los que destacan los teléfonos móviles. Especialmente en el caso de los teléfonos móviles es muy frecuente olvidar el cargador, lo cual puede llegar a ser un problema, por ejemplo, al salir de viaje. Efectivamente, y teniendo en cuenta que cada marca de teléfono tiene su cargador, e incluso distintos para distintos modelos, puede llegar a ser imposible encontrar un cargador válido, dejando al usuario incomunicado. Por otra parte, sería una gran ventaja para establecimientos hoteleros y similares ofrecer un servicio consistente en posibilitar la recarga estos teléfonos o aparatos, servicio que no ofrecen porque requeriría tener a disposición de sus clientes tantos cargadores como marcas y/o modelos existentes, lo cual es casi imposible. Estos inconvenientes se subsanan mediante la utilización del dispositivo de la invención.
DESCRIPCIÓN DE LA INVENCIÓNCurrently, there are many different devices that work with rechargeable batteries, among which mobile phones stand out. Especially in the case of mobile phones it is very common to forget the charger, which can be a problem, for example, when traveling. Indeed, and taking into account that each brand of phone has its charger, and even different for different models, it may become impossible to find a valid charger, leaving the user incommunicado. On the other hand, it would be a great advantage for hotel establishments and the like to offer a service consisting of enabling these phones or devices to be recharged, a service that they do not offer because it would require having as many chargers as existing brands and / or models available to their customers, which it's almost impossible. These drawbacks are remedied by using the device of the invention. DESCRIPTION OF THE INVENTION
El dispositivo de la invención sirve de una manera óptima para recargar las baterías de distintos aparatos, especialmente de teléfonos móviles. De acuerdo invención, el dispositivo comprende una serie de elementos alojados dentro de una carcasa, con los correspondientes conectores para un cable de alimentación a red y para otro cable externo con los correspondientes pines o conectores para conectarse a su vez al aparato cuya batería se desea recargar. En el interior de la carcasa se dispone una fuente alimentación consistente en un transformador que proporciona aislamiento galvánico y suministra tensión en su secundario capaz de efectuar la recarga, esto es, una tensión algo superior a la nominal de las baterías recargar. A la salida del secundario del transformador se dispone un rectificador para rectificar la corriente alterna a continua, así como un filtro para eliminar el rizado. Esta es la constitución habitual de un cargador específico para un aparato determinado, cuyos valores de tensión y corriente se determinan por el diseño. La invención propone conseguir que esta constitución pueda utilizarse para suministrar valores de tensión y corriente adaptables automáticamente para recargar diversos aparatos, siempre dentro del límite impuesto por la naturaleza de las baterías, por ejemplo en el caso de las de ión-litio, cuyas células son de 3,6 V.
La mejora consiste en disponer a la salida de la fuente alimentación descrita un regulador de corriente polarizado a una tensión de referencia, que limita la corriente que es capaz de suministrar el dispositivo a un valor máximo. Esto es de utilidad para algunos teléfonos móviles que incorporan un circuito interno de seguridad, que verifica la tensión inicial y corriente máxima que se le puede proporcionar desde el dispositivo recargador, y no permite la recarga si dicha corriente puede superar cierto valor. De este modo, el cargador nunca proporcionara una corriente que sobrepase este valor y se permitirá la recarga. A la salida del regulador de intensidad se dispone un regulador de tensión ajustado a una tensión de salida determinada, que es la que se precisa en la recarga. A la hora de efectuar la recarga, en función del modelo de aparato recargar así como del nivel de carga de su batería, demandará una mayor o menor cantidad de corriente. En caso de que la corriente requerida sea superior a la máxima que suministra el regulador de intensidad, quedará limitada a este valor máximo.The device of the invention serves in an optimal way to recharge the batteries of different devices, especially mobile phones. According to the invention, the device comprises a series of elements housed within a housing, with the corresponding connectors for a mains power cable and for another external cable with the corresponding pins or connectors to connect in turn to the device whose battery is desired recharge. Inside the housing there is a power supply consisting of a transformer that provides galvanic isolation and supplies voltage on its secondary capable of recharging, that is, a voltage slightly higher than the nominal recharge batteries. At the output of the secondary of the transformer there is a rectifier to rectify the alternating current to DC, as well as a filter to eliminate curling. This is the usual constitution of a specific charger for a given device, whose voltage and current values are determined by the design. The invention proposes that this constitution can be used to provide automatically adaptable voltage and current values to recharge various devices, always within the limit imposed by the nature of the batteries, for example in the case of lithium-ion batteries, whose cells are 3.6 V. The improvement consists in having a polarized current regulator at the output of the described power supply at a reference voltage, which limits the current that the device is capable of supplying at a maximum value. This is useful for some mobile phones that incorporate an internal safety circuit, which verifies the initial voltage and maximum current that can be provided from the recharging device, and does not allow recharging if said current can exceed a certain value. In this way, the charger will never provide a current that exceeds this value and recharge will be allowed. At the output of the current regulator, a voltage regulator is set at a certain output voltage, which is what is required in the recharge. When recharging, depending on the device model recharging as well as the level of charge of your battery, it will demand a greater or lesser amount of current. In case the required current is higher than the maximum supplied by the intensity regulator, it will be limited to this maximum value.
BREVE DESCRIPCIÓN DE LOS DIBUJOS La figura 1 muestra una vista esquemática del dispositivo de la invención.BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 shows a schematic view of the device of the invention.
DESCRIPCIÓN DE UNA REALIZACIÓN PRACTICA DE LA INVENCIÓN El dispositivo 1 de la invención está constituido por una fuente 2 de alimentación, que comprende un conector 3 para un cable externo, no representado, de
conexión a red, un elemento 4 fusible de protección, un transformador 5 que adapta la tensión entrante de red a valores adecuados para la recarga de las baterías, que en el caso teléfonos móviles oscila entre 4 y 6 voltios, un rectificador 6, y un filtro 7, proporcionando una tensión de salida continua y estabilizada, y proporcionando el transformador aislamiento galvánico. El transformador estará preferentemente sobredimensionado de forma que para aguantar sin problemas corrientes de cortocircuito en la carga. La salida de la fuente alimentación acomete a un regulador de corriente 8 que tiene la finalidad de limitar a un valor máximo la corriente de recarga que puede suministrar el dispositivo, ya que existen en el mercado aparatos que verifican la tensión inicial y corriente máxima de carga que se le puede suministrar desde el dispositivo recargador, y que no permiten la recarga si detectan que se puede superar un cierto valor de corriente máximo. El regulador de corriente 8, en este ejemplo no limitativo de la invención, se basa en un transistor PNP, no representado, adecuadamente polarizado. El dispositivo también comprende un regulador de tensión 9, consistente preferentemente en un regulador lineal de tensión fija integrado, idealmente de baja pérdida con el fin de aumentar el rendimiento del cargador y bajar la temperatura en el interior de la carcasa 10 que contiene a los distintos elementos que conforman el dispositivo. Este tipo de integrados permite ajustar la tensión de salida a un valor constante mediante un pin referencia.
Por último, en el regulador de tensión se implementa un LED 12, testigo de la conexión del dispositivo a la red. Por su parte, la conexión del dispositivo al aparato cuyas baterías se pretende recargar se realizará mediante un cable, no representado, acoplable a un conector de salida 13 del dispositivo. Este cable puede ser particular para cada modelo de aparato a recargar, con el fin de integrar los pines conexión particulares del aparato o, preferentemente, puede estar constituido por un único cable, no representado, con un conector múltiple extremo. Descrita suficientemente la naturaleza de la invención, así como la manera de realizarse en la práctica, debe hacerse constar que las disposiciones anteriormente indicadas y representadas en los dibujos adjuntos son susceptibles de modificaciones de detalle en cuanto no alteren el principio fundamental .
DESCRIPTION OF A PRACTICAL EMBODIMENT OF THE INVENTION The device 1 of the invention is constituted by a power supply 2, comprising a connector 3 for an external cable, not shown, of mains connection, a protection fuse element 4, a transformer 5 that adapts the incoming mains voltage to suitable values for recharging the batteries, which in the case mobile phones range between 4 and 6 volts, a rectifier 6, and a filter 7, providing a continuous and stabilized output voltage, and providing the galvanic isolation transformer. The transformer will preferably be oversized so as to withstand short-circuit currents in the load without problems. The output of the power supply is connected to a current regulator 8 which has the purpose of limiting the recharge current that the device can supply to a maximum value, since there are devices on the market that verify the initial voltage and maximum load current that can be supplied from the recharging device, and that do not allow recharging if they detect that a certain maximum current value can be exceeded. The current regulator 8, in this non-limiting example of the invention, is based on a PNP transistor, not shown, suitably polarized. The device also comprises a voltage regulator 9, preferably consisting of an integrated fixed voltage linear regulator, ideally of low loss in order to increase the performance of the charger and lower the temperature inside the housing 10 containing the various elements that make up the device. This type of integrated allows to adjust the output voltage to a constant value by means of a reference pin. Finally, an LED 12 is implemented in the voltage regulator, witness to the connection of the device to the network. For its part, the connection of the device to the device whose batteries are intended to be recharged will be made by a cable, not shown, attachable to an output connector 13 of the device. This cable may be particular for each model of the device to be recharged, in order to integrate the particular connection pins of the device or, preferably, it may consist of a single cable, not shown, with an end multiple connector. Sufficiently described the nature of the invention, as well as the manner in which it is carried out in practice, it should be noted that the provisions indicated above and represented in the attached drawings are subject to modifications in detail as long as they do not alter the fundamental principle.
Claims
1. -Dispositivo recargador universal para teléfonos móviles y aparatos similares, del tipo de los que están constituidos por una carcasa de la que emerge un cable conectable a la red eléctrica, y que interiormente se conecta a una fuente de alimentación consistente en un transformador, un rectificador y un filtro, a la salida del cual se obtiene corriente continua y filtrada adaptada para recargar una batería de un aparato a través del correspondiente cable y conector específico; caracterizado porque a la salida del filtro se dispone un regulador de corriente en orden a limitar la corriente de recarga suministrable por el dispositivo a un valor máximo; a continuación se dispone un regulador de tensión ajustado a una tensión de salida determinada; el cable que interconecta el dispositivo con el aparato cuyas baterías se recargan incorpora un conector múltiple extremo en orden a permitir su conexión a diferentes aparatos . 1. -Universal recharger device for mobile phones and similar devices, of the type that are constituted by a housing from which a cable connectable to the mains emerges, and that internally connects to a power supply consisting of a transformer, a rectifier and a filter, at the output of which direct and filtered current is obtained adapted to recharge a battery of an apparatus through the corresponding cable and specific connector; characterized in that a current regulator is arranged at the outlet of the filter in order to limit the recharge current supplied by the device to a maximum value; a voltage regulator set to a given output voltage is then provided; The cable that interconnects the device with the device whose batteries are recharged incorporates an end multiple connector in order to allow its connection to different devices.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES200401106U ES1057602Y (en) | 2004-05-07 | 2004-05-07 | UNIVERSAL RECHARGEATOR DEVICE FOR MOBILE PHONES AND SIMILAR APPLIANCES. |
| ESU200401106 | 2004-05-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2005109601A1 true WO2005109601A1 (en) | 2005-11-17 |
Family
ID=32921875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/ES2005/000193 WO2005109601A1 (en) | 2004-05-07 | 2005-04-13 | Universal recharger for mobile telephones and similar devices |
Country Status (2)
| Country | Link |
|---|---|
| ES (1) | ES1057602Y (en) |
| WO (1) | WO2005109601A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3771043A (en) * | 1971-12-20 | 1973-11-06 | S & C Electric Co | System for powering a combination of variable burden and fixed burden voltage dependent loads from a high impedance source |
| US4695784A (en) * | 1985-04-30 | 1987-09-22 | Reynolds William R | Voltage and current limiting phase-triggered battery charger with continuous optimization of charging rate |
| US5045768A (en) * | 1989-10-27 | 1991-09-03 | International Rectifier Corporation | Off-line battery charger |
| US6091611A (en) * | 1994-04-26 | 2000-07-18 | Comarco Wireless Technologies, Inc. | Connectors adapted for controlling a small form factor power supply |
| US6104162A (en) * | 1999-09-11 | 2000-08-15 | Sainsbury; Simon R. | Method and apparatus for multi-power source for power tools |
-
2004
- 2004-05-07 ES ES200401106U patent/ES1057602Y/en not_active Expired - Fee Related
-
2005
- 2005-04-13 WO PCT/ES2005/000193 patent/WO2005109601A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3771043A (en) * | 1971-12-20 | 1973-11-06 | S & C Electric Co | System for powering a combination of variable burden and fixed burden voltage dependent loads from a high impedance source |
| US4695784A (en) * | 1985-04-30 | 1987-09-22 | Reynolds William R | Voltage and current limiting phase-triggered battery charger with continuous optimization of charging rate |
| US5045768A (en) * | 1989-10-27 | 1991-09-03 | International Rectifier Corporation | Off-line battery charger |
| US6091611A (en) * | 1994-04-26 | 2000-07-18 | Comarco Wireless Technologies, Inc. | Connectors adapted for controlling a small form factor power supply |
| US6104162A (en) * | 1999-09-11 | 2000-08-15 | Sainsbury; Simon R. | Method and apparatus for multi-power source for power tools |
Also Published As
| Publication number | Publication date |
|---|---|
| ES1057602U (en) | 2004-09-01 |
| ES1057602Y (en) | 2004-12-16 |
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