Patent application number | Description | Published |
20140117923 | HIGH VOLTAGE DEDICATED CHARGING PORT - Circuitry in a portable device may be attached to external device, such as a power supply, to receive a voltage at a desired voltage level from the external device. The circuitry may assert one of several electrical configurations on the cabling that electrically connects the portable device to the external device to indicate to the external device a desired voltage level. | 05-01-2014 |
20140203761 | BUCK BOOST CHARGING FOR BATTERIES - Disclosed is a battery charging circuit having several operating modes include boost and buck mode, and forward and reverse mode. A power train and a current sensing block may share power transistors thus reducing the number of space-consuming power devices in the circuit. The current sensing block may indicate output current based only a sensed input current, and vice versa. | 07-24-2014 |
20140266228 | ACTIVE MEASUREMENT OF BATTERY EQUIVALENT SERIES RESISTANCE - A circuit for measuring the equivalent series resistance (ESR) of a battery includes taking measurements of battery current and battery voltage. A controller may control the taking of the measurements. A load generator may be activated to produce a current pulse to the battery to provide an explicit current transient under certain operating conditions of the battery. | 09-18-2014 |
20140278170 | STATE OF CHARGE (SOC) DISPLAY FOR RECHARGEABLE BATTERY - An initial SoC curve may be defined that relates system state of charge (SoC) as a function of battery SoC. Endpoints that define the SoC curve may be updated. For example, each time a battery SoC is determined, the SoC curve may be updated. The SoC curve may then be evaluated to produce a system SoC that can be present to the user. | 09-18-2014 |
Patent application number | Description | Published |
20110025277 | SWITCHING BATTERY CHARGING SYSTEMS AND METHODS - Embodiments of the present invention include techniques for charging a battery using a switching regulator. Some embodiments include programmable switching battery chargers that can be configured using digital techniques. Other embodiments include switching battery chargers that modify the battery current based on sensed circuit conditions such as battery voltage or input current to the switching regulator. In one embodiment, the present invention includes a USB battery charger. | 02-03-2011 |
20110089893 | System and Method of Charging a Battery Using a Switching Regulator - In one embodiment the present invention includes a system and method of charging a battery using a switching regulator. In one embodiment, a switching regulator receives an input voltage and input current. The output of the switching regulator is coupled to a battery to be charged. The switching regulator provides a current into the battery that is larger than the current into the switching regulator. As the voltage on the battery increases, the current provided by the switching regulator is reduced. The present invention may be implemented using either analog or digital techniques for reducing the current into the battery as the battery voltage increases. | 04-21-2011 |
20120223682 | System and Method of Charging a Battery Using a Switching Regulator - In one embodiment the present invention includes a system and method of charging a battery using a switching regulator. In one embodiment, a switching regulator receives an input voltage and input current. The output of the switching regulator is coupled to a battery to be charged. The switching regulator provides a current into the battery that is larger than the current into the switching regulator. As the voltage on the battery increases, the current provided by the switching regulator is reduced. The present invention may be implemented using either analog or digital techniques for reducing the current into the battery as the battery voltage increases. | 09-06-2012 |
20130257358 | SYSTEM AND METHOD OF CHARGING A BATTERY USING A SWITCHING REGULATOR - In one embodiment the present invention includes a system and method of charging a battery using a switching regulator. In one embodiment, a switching regulator receives an input voltage and input current. The output of the switching regulator is coupled to a battery to be charged. The switching regulator provides a current into the battery that is larger than the current into the switching regulator. As the voltage on the battery increases, the current provided by the switching regulator is reduced. The present invention may be implemented using either analog or digital techniques for reducing the current into the battery as the battery voltage increases. | 10-03-2013 |
20140122909 | HIGH VOLTAGE DEDICATED CHARGING PORT - Circuitry in an electronic device may be attached to external device, such as a power supply, to receive a voltage at a desired voltage level from the external device. The circuitry may assert one of several electrical configurations on the cabling that electrically connects the portable device to the external device to indicate to the external device a desired voltage level. | 05-01-2014 |
20140325246 | HIGH VOLTAGE DEDICATED CHARGING PORT - Circuitry in an adapter, such as a power supply, can provide power at a desired voltage level to a portable device. The circuitry may assert one of several electrical configurations on the cabling that electrically connects the portable device to the external device to indicate to the external device a desired voltage level. | 10-30-2014 |