Abstract: Apparatus and methods associated with power adapter identification are described. In one embodiment the apparatus includes an adapter plug having at least two contacts and at least one circuit component connected to the at least two contacts.

Abstract: In an electronic device, a method for adjusting the power consumption of the electronic device includes the steps of presenting a power adapter that supplies power to the electronic device. The method continues with the electronic device sensing an attribute of power adapter, and modifying an aspect of the operation of the electronic device in response to the sensing step.

Abstract: A computer system that selectively disables power to wake on LAN (WOL) devices in the absence of AC power. In one embodiment, the computer system comprises a power supply and a power management controller. The power supply is configured to provide power to a wakeup device. The power management controller receives an AC voltage sense signal that indicates the presence or absence of an AC power source and enables the power supply to provide power to the wakeup device when the AC voltage sense signal is asserted. The power management controller preferably disables the power supply when the AC voltage sense signal is de-asserted. The computer system may operate in several states including an off state, a power on self test (POST) state, a working state, a trap state, and an armed state.

Abstract: In an electronic device, a method for adjusting the power consumption of the electronic device includes the steps of presenting a power adapter that supplies power to the electronic device. The method continues with the electronic device sensing an attribute of power adapter, and modifying an aspect of the operation of the electronic device in response to the sensing step.

Abstract: Apparatus and methods associated with power adapter identification are described. In one embodiment the apparatus includes an adapter plug having at least two contacts and at least one circuit component connected to the at least two contacts.

Abstract: A method and apparatus for charging a rechargeable cell or cells for portable electronic equipment (such as a rechargeable battery pack for a notebook computer) employing a DC-to-DC converter circuit to transfer energy from one or more source cells to one or more target cells. In one embodiment, a scavenging charger circuit is configurable to accommodate a variety of different types of rechargeable cells or battery packs depending upon factors such as the types, numbers and arrangements of rechargeable cells involved.