| Patent application number | Description | Published |
|---|
| 20080290848 | VOLTAGE REGULATOR WITH MANAGED GATE-DRIVE VOLTAGE - A system may include control of a voltage regulator to provide a regulated output voltage and output current to a load coupled to an output node of the voltage regulator, and changing of a gate-drive supply voltage provided to the voltage regulator based on the output current. | 11-27-2008 |
| 20080315831 | AC-TO-DC ADAPTER FOR MOBILE SYSTEM - Disclosed herein are approaches for providing an adapter that may operate efficiently to provide a DC voltage to systems requiring different voltages. | 12-25-2008 |
| 20080315833 | BATTERY PULSE CHARGING METHOD AND APPARATUS - Disclosed herein are some embodiments for safely charging a mobile system battery pack, even when the power source (e.g., adapter) voltage is at a relatively high level that would otherwise result in excessive charge current. | 12-25-2008 |
| 20080315836 | BATTERY CHARGE MANAGEMENT USING A SCHEDULING APPLICATION - According to some embodiments, battery charge management using a scheduling application is disclosed. A first parameter may be received from a scheduling application running on a mobile computing device having a battery pack. Based on at least the first parameter and battery pack data, a required charge percentage for the battery pack may be determined and the remaining capacity of the battery pack may be determined. If the remaining capacity of the battery pack is less than the required charge percentage, a charge termination voltage may be determined and the battery pack may be charged to the charge termination voltage. | 12-25-2008 |
| 20080315842 | POWER ADAPTER DETECTION - According to some embodiments, an apparatus for power adapter detection is disclosed. The apparatus includes a first detection module to detect if a first signal from a power adapter is present and in a first voltage range, a second detection module to detect if a second signal from the power adapter is present and in a second voltage range, and a third module to permit a system to be powered by the power adapter if the first signal is present and in the first voltage range and if the second signal is present and in the second voltage range. | 12-25-2008 |
| 20080320320 | MOBILE POWER CONTROL APPARATUS AND METHOD - Disclosed herein are approaches for reducing the difference in voltage between a DC power source and a system supply voltage for a mobile system, for example, to reduce over-voltages, inrush currents, and power conversion inefficiencies when a DC source such as an adapter is connected to the mobile system. | 12-25-2008 |
| 20090088992 | Intelligent battery safety management - A method and apparatus for intelligent battery safety management. Some embodiments of a method for managing battery operation may include receiving a battery pack in a device, where the battery pack is rechargeable and includes a battery cell. In some embodiments data may be collected regarding the operation of the battery cell in the device, and the collected data may be compared with a set of battery reference data. In some embodiments a determination may be made whether the battery cell is non-authentic or defective based at least in part on the comparison between the collected data and the battery reference data. | 04-02-2009 |
| 20090167245 | BIDIRECTIONAL POWER MANAGEMENT TECHNIQUES - Power management techniques are disclosed. For instance, an apparatus may include a bidirectional voltage converter circuit, and a control module that selectively operates the bidirectional voltage converter circuit in a charging mode and a delivery mode. The charging mode converts a voltage provided by an interface (e.g., a USB interface) into a charging voltage employed by an energy storage module (e.g., a rechargeable battery). Conversely, the delivery mode converts a voltage provided by the energy storage module into a voltage employed by the interface. | 07-02-2009 |
| 20090167312 | SHORT CIRCUIT DETECTION FOR BATTERIES - A method and apparatus for short circuit detection for batteries. Some embodiments of a method include receiving a battery pack in a system, where the battery pack is rechargeable and includes multiple battery cell blocks, each cell block including one or more battery cells. The voltages of the plurality of cell blocks are monitored. Upon shutting down the system, the voltages of the plurality of cell blocks are logged to generate a set of logged voltage values. Upon restarting the system, the current voltage values of the cell blocks are measured. A determination whether any of the battery cells of the battery pack has developed a short circuit is made based at least in part on a comparison of the current voltage values with the set of the logged voltage values. | 07-02-2009 |
| 20090273315 | Method and apparatus for battery pre-check at system power-on - A system including at least one electronic component and a battery check circuit. When a power consumption level of the at least one electronic component is increased, the battery check circuit determines whether to provide power from a battery to the at least one electronic component by comparing a power level of the battery to a first power level. | 11-05-2009 |
| 20090327776 | MULTIPLE LOAD LINE VOLTAGE REGULATORS - Methods and apparatus relating to a multiple load line voltage regulators are described. In one embodiment, a voltage regulator may adjust an input voltage level based on information received from a load and current supplied to the load. Other embodiments are also disclosed and claimed. | 12-31-2009 |
| 20100070788 | OPTIMIZED COMPENSATION IN A VOLTAGE REGULATOR - Multiple components of a computer system may be capable of entering wake and sleep states. The power consumption of a processor during wake state may draw significant amount of current. In order to keep power consumption of a voltage regulator low, a two-phase voltage regulator may be used during wake state. During sleep state, since power consumption is lower, the two-phase voltage regulator may be operated in a single-phase mode to further reduce voltage regulator power consumption. | 03-18-2010 |
| 20100109612 | METHOD, APPARATUS, AND SYSTEM FOR POWER SOURCE FAILURE PREDICTION - Some embodiments of a method, apparatus, and system for power source failure prediction are described. According to some embodiments, the system may include, among other things, a display device to draw power from a direct current power source, two or more electrical lines positioned on either side of the direct current power source to determine a voltage across the direct current power source, and a power source management unit coupled to the two or more electrical lines to measure the voltage. In some embodiments, a cell monitoring unit may be coupled to the two or more electrical lines to measure the voltage for the power source management unit, where the cell monitoring unit is capable of converting the measured voltage to a digital signal, measuring the rate of change of the voltage over a period of time, and providing information to the power source management unit. Other embodiments are described. | 05-06-2010 |
| 20100153757 | BALANCING POWER SUPPLY AND DEMAND - A method and apparatus to balance adapter power supply and computing device power demand. In one embodiment, power to/from battery pack(s) maybe controlled by adjusting the output voltage of the power adapter via the current input to the power adapter through a feedback pin to meet power demand of electrical loads. Another embodiment provides a way to adjust the activities of the electrical loads such that neither adapter power rating nor the electrical load power limit is exceeded while avoiding system shutdown. | 06-17-2010 |
| 20100244573 | HYBRID POWER DELIVERY SYSTEM AND METHOD - A power control circuit includes a selector coupled to a first power source and a second power source. The selector selects power from the first power source for powering a load based on a status signal from at least the first power source. The first power source may be an environmental power source and the second power source may be another type of power source. | 09-30-2010 |
| 20110080141 | BATTERY CHARGE MANAGEMENT USING A SCHEDULING APPLICATION - According to some embodiments, battery charge management using a scheduling application is disclosed. A first parameter may be received from a scheduling application running on a mobile computing device having a battery pack. Based on at least the first parameter and battery pack data, a required charge percentage for the battery pack may be determined and the remaining capacity of the battery pack may be determined. If the remaining capacity of the battery pack is less than the required charge percentage, a charge termination voltage may be determined and the battery pack may be charged to the charge termination voltage. | 04-07-2011 |
| 20110133745 | METHOD AND APPARATUS FOR BATTERY POWER PRE-CHECK AT SYSTEM POWER-ON - A system including at least one electronic component and a battery check circuit. When a power consumption level of the at least one electronic component is increased, the battery check circuit determines whether to provide power from a battery to the at least one electronic component by comparing a power level of the battery to a first power level. | 06-09-2011 |
| 20110148383 | POWER MANAGEMENT CONTROL SYSTEM AND METHOD - A power management system includes a sensor to detect current output from a battery, a first comparator to compare the battery current to a first reference value, and a burst controller to perform a first power control operation based on said comparison. The power control operation reduces power consumed by the battery in order to cause the battery current to fall below the first reference value. This may be accomplished by reducing or shutting down power to one or more functions or features of a host system that includes or is coupled to receive power from the battery. The host system may include or correspond to a mobile phone and/or any of a number of other electronic devices. | 06-23-2011 |
