Device for monitoring cell voltage
Abstract
A device for monitoring a rechargeable battery having a number of electrically connected cells includes at least one current interruption switch for interrupting current flowing through at least one associated cell and a plurality of monitoring units for detecting cell voltage. Each monitoring unit is associated with a single cell and includes a reference voltage unit for producing a defined reference threshold voltage and a voltage comparison unit for comparing the reference threshold voltage with a partial cell voltage of the associated cell. The reference voltage unit is electrically supplied from the cell voltage of the associated cell. The voltage comparison unit is coupled to the at least one current interruption switch for interrupting the current of at least the current flowing through the associated cell, with a defined minimum difference between the reference threshold voltage and the partial cell voltage.
- Inventors:
-
- Garbsen, DE
- Edermissen, DE
- Issue Date:
- Research Org.:
- National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1062380
- Patent Number(s):
- 8248030
- Application Number:
- 12/084,845
- Assignee:
- Johnson Controls Technology Company (Holland, MI)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01R - MEASURING ELECTRIC VARIABLES
H - ELECTRICITY H02 - GENERATION H02J - CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER
- DOE Contract Number:
- FC26-95EE50425
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION
Citation Formats
Doepke, Matthias, and Eisermann, Henning. Device for monitoring cell voltage. United States: N. p., 2012.
Web.
Doepke, Matthias, & Eisermann, Henning. Device for monitoring cell voltage. United States.
Doepke, Matthias, and Eisermann, Henning. Tue .
"Device for monitoring cell voltage". United States. https://www.osti.gov/servlets/purl/1062380.
@article{osti_1062380,
title = {Device for monitoring cell voltage},
author = {Doepke, Matthias and Eisermann, Henning},
abstractNote = {A device for monitoring a rechargeable battery having a number of electrically connected cells includes at least one current interruption switch for interrupting current flowing through at least one associated cell and a plurality of monitoring units for detecting cell voltage. Each monitoring unit is associated with a single cell and includes a reference voltage unit for producing a defined reference threshold voltage and a voltage comparison unit for comparing the reference threshold voltage with a partial cell voltage of the associated cell. The reference voltage unit is electrically supplied from the cell voltage of the associated cell. The voltage comparison unit is coupled to the at least one current interruption switch for interrupting the current of at least the current flowing through the associated cell, with a defined minimum difference between the reference threshold voltage and the partial cell voltage.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Aug 21 00:00:00 EDT 2012},
month = {Tue Aug 21 00:00:00 EDT 2012}
}