Method of forming a balancing circuit for a plurality of battery cells
AssigneeSemiconductor Components Industries, LLC
InventorBart De Cock
Life of this patent
Estimating the term…
Abstract
In one embodiment, a method of forming a balancing circuit for a plurality of battery cells includes configuring the balancing circuit to selectively pre-charge a transfer element from a power source, and to subsequently selectively couple the transfer element to one battery cell of the plurality of battery cells to transfer energy from the transfer element to the one battery cell.
Claims19
A method of forming a balancing circuit for a plurality of battery cells comprising:
- forming a first node for being commonly connected to a first terminal of a transfer element and to a first terminal of a first plurality of switches;
- forming a second node for being commonly connected to a second terminal of the transfer element and to a first terminal of a second plurality of switches;
- forming a power input terminal commonly connected directly to a second terminal of a first switch of the first plurality of switches, directly to a second terminal of a first switch of the second plurality of switches, and for being directly connected to a positive terminal of a first battery cell of the plurality of battery cells;
- configuring the balancing circuit to selectively pre-charge the transfer element with either of a first or second polarity from a power source that is external to the plurality of battery cells and that is coupled to the power input terminal, and to subsequently selectively couple the transfer element to at least one battery cell of the plurality of battery cells to transfer energy from the transfer element to the at least one battery cell.
A method of forming a balancing circuit for a plurality of battery cells comprising:
- configuring the balancing circuit to selectively pre-charge a transfer element with either of a first or second polarity from a power source wherein the transfer element includes an inductor storage element and to subsequently selectively couple the transfer element to at least one battery cell of the plurality of battery cells to transfer energy from the transfer element to the at least one battery cell;
- and
- configuring a first switch with a first terminal for being connected directly to a first terminal of the storage element, the first switch having a second terminal for being directly connected to a positive terminal of a first battery cell of the plurality of battery cells.
A method of forming a balancing circuit for a plurality of battery cells comprising:
- forming a power input terminal for being commonly connected to a first terminal of a first switch of a first plurality of switches, to a first terminal of a first switch of a second plurality of switches, and for being directly connected to a positive terminal of a first battery cell of the plurality of battery cells;
- forming a power return terminal commonly connected to a first terminal of a second switch of the first plurality of switches, to a first terminal of a second switch of the second plurality of switches, and for being connected to a first terminal of a second battery cell of the plurality of battery cells;
- and
- forming a transfer element having a first terminal connected to a second terminal of the first switch of the first plurality of switches and to a second terminal of the second switch of the first plurality of switches, the transfer element having a second terminal connected to a second terminal of the first switch of the second plurality of switches and to a second terminal of the second switch of the second plurality of switches.
Dependencies are inferred from the claim text.