Patent ID: 7710079

Claim:
A power manager for managing power for a battery-powered application, comprising: a circuit path for interconnecting a power source, a load, and a battery; a controller, provided between (a) the power source and (b) the load and the battery, configured for controlling power delivery through the circuit path to the load and battery, the load and the battery sharing the power supplied from the controller, a first circuit configured for coupling a battery to the circuit path to charge the battery; a second circuit configured for monitoring a voltage in the circuit path to detect whether the voltage exceeds both (1) a battery voltage plus a first reference and (2) a second reference; and a third circuit configured for monitoring input current in the circuit path to detect whether the input current exceeds a current limit, wherein the controller is coupled to the second and third circuits, and configured to limit the power delivery in response to a voltage or current detection by the second and third circuits, respectively.