Patent ID: 9136724
Filing Date: 2015-09-15
Classification: H02J,H02M,Y02T

Abstract:
1. A power supply system, comprising: a single reconfigurable buck/boost system couplable to an adapter for receiving power therefrom and couplable to a rechargeable battery which is connectable to deliver a supply current to a load, the charger system limiting current drawn from the adapter and charging the battery in the buck mode; and the single reconfigurable buck/boost system operating in a boost mode for operating the load at least in part from the battery and to regulate a discharge current from said rechargeable battery when said rechargeable battery is supplying power to said load, wherein the reconfigurable buck/boost system comprises a first switch couplable to an output bus of the adapter in series with a second switch coupled to a reference voltage, a common node between the first and second switches being coupled to one terminal of the inductor, the other terminal of which is couplable to the battery, the reconfigurable buck/boost system operating the first and second switches in buck mode in which current flows into the battery in a first direction and operates the first and second switches in a boost mode in which current flows in a second direction from the battery to the output bus of the adapter.