Patent · US Active

Differential interface for inter-device communication in a battery management and protection system

US9614661B2 · kind B2 · utility

0Cited by

6References

11Claims

0Family size

Assignee

Atmel Corporation · US

Inventors

Wolfgang Roeper · Neuenstein, DE
Hendrik Ahlendorf · Munich, DE
Friedemann Schmidt · Stuttgart, DE

Key dates

Filing date	Apr 9, 2012
Grant date	Apr 4, 2017
Priority date	—
Expiry date	Feb 4, 2036

Classification

Technology area (CPC H)Electricity
CPC primaryH04L25/0294
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A multi-cell battery stack includes a microcontroller and a string of battery management and protection IC devices connected to one another in a daisy chain configuration. Each battery management and protection IC device can include a communication interface circuit includes pairs of differential input signal lines, receivers including respective current comparator circuits to receive differential signals on the differential input signal lines, and transmitters to provide outgoing differential signals on the differential input signal lines. A digital circuit block allows signals to pass between the receivers and transmitters.

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