Patent ID: 9202158
Filing Date: 2015-12-01
Classification: G06K,H02J

Abstract:
1. A circuit for supplying power to an integrated circuit card, ICC, of a wireless device comprising a first power supply unit adapted to supply power to the ICC through a first power path in a first operation mode of the device while being unable to supply power to the ICC in a second operation mode of the device, the circuit comprising: a second power supply unit; a power pin connected to the second power supply unit and configured to selectively operate as a power input pin or as a power output pin, and adapted to be selectively connected to the first power supply unit of the device through a second power path of the device or to the ICC through a third power path of the device, respectively; a controller configured to cause the power pin to operate as a power input pin in the first operation mode of the device whereby the second power supply unit is loaded with power from the first power supply unit through the power pin and the second power path of the device, or as a power output pin in the second operation mode of the device whereby power is supplied to the ICC from the second power supply unit through the power pin and the third power path of the device, wherein the controller is configured to wherein