Patent application number | Description | Published |
20110117396 | Battery Pack and Method of Preventing Cap Disassembly or Cell Replacement in the Battery Pack - A battery pack having a function for preventing operation of the battery pack when an abnormal replacement of a battery cell is detected or preventing a use of the battery pack in which a cap has been removed. The battery pack generates an encryption code and writes the encryption code to data flash when a battery cell is normally discharged according to a first voltage, and if an abnormal power-on reset is detected on the battery cell, the battery pack may check the stored encryption code to a second encryption code generated upon power-on reset. If the codes do not match, firmware of the battery pack is deleted and/or a fuse is blown, making it is possible to prevent the battery pack from being re-used when the battery cell has been replaced or in which a cap has been removed. | 05-19-2011 |
20110121789 | Battery pack and method of controlling charging of battery pack - A battery pack includes a battery cell, a charge-blocking unit, a voltage sensing and balancing circuit, and a microcomputer, the microcomputer including a controller that detects at least one selected from the group of abnormal analog-to-digital conversion, abnormal voltage, and abnormal temperature of the battery cell, the controller outputting a charge control signal to the charge-blocking unit to inhibit charging of the battery cell. | 05-26-2011 |
20110129697 | SECONDARY BATTERY - A secondary battery includes a protection circuit module (PCM) electrically connected to a bare cell. The bare cell is wrapped with a first sheet, a water permeable second sheet placed on the first sheet, and a submergence label placed between the first sheet and the water permeable second sheet. The submergence label indicates if the bare cell has been exposed to moisture. The label sheet further has a stacking structure, wherein the second sheet is placed on top of the first sheet and the submergence label is interposed between the first sheet and the second sheet. Accordingly, it is possible to determine whether a user has disassembled, modified, or reused the battery and it is possible to easily verify whether or not the secondary battery has been submerged in a liquid due to a user's carelessness or mistake. | 06-02-2011 |
20110156654 | PROTECTION CIRCUIT FOR BATTERY PACK - A protection circuit of a battery pack capable of detecting the error of a charging device from the battery pack. The protection circuit of the battery pack having a battery cell charged by a charging device, the protection circuit including a charge switch coupled to a high current path (HCP), the charge switch disposed between the battery cell and the charging device charging the battery cell and a controller sensing a voltage or a current of the charging device during a charge stop period stopping a charging of the battery cell and determining whether an error of the charging device occurs according to the voltage or the current of the charging device. | 06-30-2011 |
20110305926 | BATTERY PROTECTING CIRCUIT, METHOD OF CONTROLLING THE SAME, AND BATTERY PACK - A battery pack is disclosed. The battery pack has an analog front end which senses if a failure occurs in a microcontroller, and interrupts charging and discharging of the battery in response to the failure. | 12-15-2011 |
20120025615 | POWER SUPPLY APPARATUS - A power supply apparatus is disclosed. The power supply apparatus includes a rechargeable battery and a battery management system (BMS) for managing charging and discharging of the battery. The power supply apparatus is configured to supply an operating power to the BMS from an external power of an external power source when the external power source is in a normal state and is capable of supplying the external power to a load through the power supply apparatus. The power supply apparatus is further configured to supply the operating power to the BMS from electric energy stored in the battery when the external power source is in a state different from the normal state and not capable of supplying the external power to the load through the power supply apparatus. | 02-02-2012 |
20120025744 | BATTERY PACK AND ELETRICAL TRANSFER APPARATUS INCLUDING SAME - A battery pack includes: a first battery cell group including at least one high capacity battery cell; and a second battery cell group including at least one high output battery cell and being coupled in parallel to the first battery cell group, wherein the high output battery cell is configured to output a greater current than the high capacity battery cell, the high capacity battery cell is configured to store a greater amount of electric energy compared to the high output battery cell, and the battery pack is configured to operate in one of operational modes including: a high capacity mode for outputting electric energy stored in the first battery cell group; a high output mode for outputting electric energy stored in the second battery cell group; and a mutual charge mode for charging the first battery cell group or the second battery cell group. | 02-02-2012 |
20120025963 | VEHICLE USING MOTOR AND METHOD OF CONTROLLING THE SAME - A vehicle using a motor, and a method of controlling the vehicle. The vehicle includes a battery for providing electric energy to the motor, a remaining energy-amount detector for detecting an amount of remaining energy of the battery, a distance calculator for calculating an available moving distance of the vehicle corresponding to the amount of remaining energy and a weight applied to the vehicle, and a display unit for displaying the available moving distance. | 02-02-2012 |
20120029744 | ELECTRIC VEHICLE AND METHOD OF CONTROLLING THE SAME - An electric vehicle and a method of controlling the electric vehicle are disclosed. In one embodiment, the electric vehicle includes i) a battery configured to provide electric energy to the motor, ii) a remaining energy-amount detector configured to detect a remaining energy-amount of the battery and iii) a manipulation unit configured to receive target information from a user. The vehicle also includes a guide information generator configured to generate driving guide information based at least in part on the remaining energy-amount of the battery and the target information and a display unit configured to display the driving guide information. | 02-02-2012 |
20120032639 | BATTERY PACK, CHARGER, AND CHARGING SYSTEM - A battery pack, a charger, and a charging system. The battery pack includes a rechargeable battery, and a protection circuit to control charging and discharging of the battery, wherein the protection circuit includes a micom to output an operating state signal representing an operating state of the micom and a malfunction transferring unit to transfer information on whether the battery is malfunctioning based on the operating state signal. Accordingly, when an error is detected by the protection circuit of the battery pack, charging is stopped, and thus the battery pack may be stably charged. | 02-09-2012 |
20120032641 | BATTERY PACK AND METHOD OF CONTROLLING THE SAME - A battery pack and a method of controlling the same is disclosed. The battery pack determines a cell deviation after the battery pack is fully charged or over-discharged, and thus the battery pack can reduce the cell deviation by performing cell balancing. | 02-09-2012 |
20120032643 | BATTERY PACK, CHARGING SYSTEM INCLUDING THE BATTERY PACK, AND METHOD OF CONTROLLING THE CHARGING SYSTEM - A battery pack, a charging system including the battery pack, and a method of controlling the charging system are disclosed. The battery pack includes a plurality of rechargeable battery cells and a protection circuit for protecting the battery cells. The protection circuit includes an analog front end (AFE) integrated circuit (IC) and a microcomputer. The AFE IC is for supplying an operating voltage of a microcomputer to the microcomputer and to a charging device. Thus, when the battery pack is charged, an abnormal operation of the AFE IC can be detected by the charging device and the charging of the battery pack stopped, thereby preventing an explosion of the battery pack. | 02-09-2012 |
20120035874 | BATTERY PACK AND METHOD OF CONTROLLING THE SAME - A battery pack includes a battery cell; a protective circuit for protecting the battery cell; a first analog/digital (A/D) converter for converting a voltage of the battery cell into a digital value and outputting the digital value as a first voltage value; a second A/D converter for converting the voltage of the battery cell into another digital value and outputting the another digital value as a second voltage value; and a comparator for comparing the first voltage value with the second voltage value and determining whether A/D conversion of the battery pack is normal or defective according to the comparison. | 02-09-2012 |
20120056586 | SECONDARY BATTERY PACK - A secondary battery pack is described that is rechargeable and has a large capacity. The secondary pack has multiple battery units and at least one controller. Each battery unit of the battery pack includes a cell unit and a cell balancing system. In one embodiment, the cell balancing system has at least three detachable connections for connecting the cell balancing system to the cell unit, the controller or to other cell balancing units. The connections allow the cell balancing systems to be detached from the battery units and reused. | 03-08-2012 |
20120056598 | BATTERY PACK AND METHOD OF CONTROLLING THE SAME - A battery pack including a plurality of battery cells and a method of controlling the battery pack are provided. The method includes: permanently cutting off charging and discharging paths of the battery pack; and discharging one or more of the battery cells when a condition of which satisfies a reference condition. Therefore, state of the battery pack changes from its failure state to a stable state. | 03-08-2012 |
20130221924 | BATTERY PACK AND POWER GENERATION CIRCUIT IN BATTERY PACK - A battery pack and a power generation circuit in the battery pack are disclosed. The battery pack includes a battery cell unit including battery cells connected in series, a charge/discharge switch connected between the battery cell unit and charge/discharge terminals, a charge/discharge controller controlling the charge/discharge switch to charge or discharge the battery cell unit, and a voltage converter electrically connected in parallel to the charge/discharge switch and dropping a voltage of the battery cell unit, and outputting the dropped voltage as power of the charge/discharge controller. | 08-29-2013 |
20140055095 | BATTERY PACK AND METHOD OF CONTROLLING THE SAME - A battery pack includes at least one battery cell, a microcomputer having a first voltage measuring terminal, a second voltage measuring terminal, and a reference voltage output terminal, the microcomputer being configured to control recharge and discharge of the at least one battery cell by detecting an abnormality of a reference voltage at the reference voltage output terminal in accordance with first and second voltages at respective first and second voltage measuring terminals, a voltage distribution unit connected between the reference voltage output terminal and a ground, the voltage distribution unit being configured to distribute voltage and to output to the microcomputer a medium voltage as the first voltage, and a voltage measuring unit connected between the reference voltage output terminal and the ground, the voltage measuring unit being configured to output to the microcomputer a forwarding direction voltage of a diode as the second voltage. | 02-27-2014 |
20140084873 | PROTECTION APPARATUS FOR SECONDARY BATTERY - A battery pack includes a secondary battery; and a protection device including: a measurement unit coupled to the secondary battery and configured to measure a temperature and a voltage of the secondary battery; a temperature estimation unit coupled to the measurement unit and configured to estimate a future temperature of the secondary battery; and a charging/discharging unit coupled to the secondary battery and configured to adjust a current or an input voltage applied to the secondary battery based on the future temperature and the voltage of the secondary battery. | 03-27-2014 |
20150061595 | BATTERY PROTECTION SYSTEM AND BATTERY PROTECTION METHOD USING THE SAME - A battery protection system includes a first battery, a first line coupled to a first electrode of the first battery, and a second line coupled to a second electrode of the first battery, the first and second electrodes being of opposite polarity, a measurement unit measuring a voltage at first and second measurement terminals, the first measurement terminal being connected to the first electrode by the first line, the second measurement terminal being connected to the second electrode by the second line, and a protection unit controlling a voltage of the first battery according to a generated voltage, the generated voltage being determined by adjusting the measured voltage according to a first voltage drop across the first line, a second voltage drop across the second line, or both the first voltage drop and the second voltage drop. | 03-05-2015 |