Patent ID: 9136714
Filing Date: 2015-09-15
Classification: G06F,H02J

Abstract:
1. A method for performing active balancing control with aid of voltage information sharing, the method being applied to a power supply device, the method comprising: obtaining first voltage information from a specific battery module of a set of battery modules connected in series within the power supply device, wherein each battery module comprises at least one battery cell; obtaining second voltage information from at least one other battery module of the set of battery modules; and utilizing a determination circuit to determine whether to enable at least one portion of an active balancing circuit of the specific battery module according to the first voltage information and the second voltage information; wherein the active balancing circuit comprises a plurality of windings and an energy temporary storage unit; the windings correspond to a primary side and a secondary side, respectively; the energy temporary storage unit is coupled to a winding corresponding to the secondary side, and is arranged for storing energy temporarily; and the method further comprises: selectively enabling the at least one portion of the active balancing circuit according to the first voltage information and the second voltage information in order to allow the energy to be transmitted from the specific battery module to the energy temporary storage unit of the active balancing circuit through the primary side and the secondary side.