Patent · US Active

Token based communication in daisy chain configured battery management devices

US9294300B2 · kind B2 · utility

2Cited by

1References

31Claims

0Family size

Assignee

Atmel Corporation · US

Inventors

Thomas Janz · Ulm, DE
Christian Bechter · Ulm, DE
Alexander Scholz · Braunschweig, DE

Key dates

Filing date	Apr 9, 2012
Grant date	Mar 22, 2016
Priority date	—
Expiry date	Jun 10, 2034

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E60/10
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A battery management and protection system includes a string of battery management and protection integrated circuit devices that may be connected to one another in a daisy chain configuration. Some of the devices can be electrically connected to one or more battery cells. Each device includes an inter-device communication interface comprising a daisy chain line driver. The system includes a controller external to the string of devices and a bi-directional connection lines connecting each device in the string to an upstream and/or downstream device in the string. The system can allow the external controller to access any single one of the devices in the daisy chain, any subset of the devices in the daisy chain, or all the devices in the daisy chain using a single command that is transmitted from one device to the next over a bi-directional connection line.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.