Optical state-of-charge monitor for batteries

Over-voltage protection accounting for battery droop

Overcharge protection circuitry for rechargeable battery pack

Overcharge protection device and methods for lithium based...

Overcurrent detection method and detection circuit

Overdischarge preventing circuit apparatus for a nonawueous...

Overvoltage and backflow current protection for a battery...

Passively protected battery pack with on load charge and on...

PCMCIA card with dedicated on-board battery

Portable electronic device and method

Portable optical code reader with a device for controlling...

Power circuit providing reverse battery protection and current a

Power circuit with double current limiting

Power management system and method for an automobile

Power supply

Power supply device, power supply method and electronic...

Power supply disabler

Power supply monitoring integrated circuit device and...

Power supply unit for supplying electric power to an electronic

Power supply unit, battery electrical apparatus, and memory...