Steve E Harrell

US Patent:

20140029147, Jan 30, 2014

Filed:

May 20, 2013

Appl. No.:

13/898259

Inventors:

Steve Harrell - Melbourne FL, US

Assignee:

Texas Instruments Incorporated - Dallas TX

International Classification:

H02J 7/00

US Classification:

361 90

Abstract:

Embodiments of the systems and methods of direct cell attachment for battery cells disclosed herein operate without the protection FETs and the protection IC, thereby enabling the direct attachment of battery cells to the system without compromising safety. A charger IC comprises a switching regulator whose output is used to charge the battery through a pass device. In example embodiments of the disclosed systems and methods of direct cell attachment, a combination of switching FETs and the pass device are used as a protection device instead of the charge and discharge FETs. During normal operation, the pass device may be used to charge the battery using the traditional battery charging profile. Under fault condition, the switching FETs and pass device may be driven appropriately to protect the system.

US Patent:

20160164319, Jun 9, 2016

Filed:

Dec 7, 2015

Appl. No.:

14/961319

Inventors:

- Dallas TX, US
Steve Harrell - Melbourne FL, US

International Classification:

H02J 7/00

Abstract:

Embodiments of the systems and methods of direct cell attachment for battery cells disclosed herein operate without the protection FETs and the protection IC, thereby enabling the direct attachment of battery cells to the system without compromising safety. A charger IC comprises a switching regulator whose output is used to charge the battery through a pass device. In example embodiments of the disclosed systems and methods of direct cell attachment, a combination of switching FETs and the pass device are used as a protection device instead of the charge and discharge FETs. During normal operation, the pass device may be used to charge the battery using the traditional battery charging profile. Under fault condition, the switching FETs and pass device may be driven appropriately to protect the system.