Specifications

62
Power Supplies
BACS
BACS
Detailed functions of the RTV module:
Protection Circuit:
Protects the battery module from over-voltage by de-
stroying an irreversible fuse (conducting path).
Ri-Measure:
Measuring channel and signal conditioning of the inter-
nal resistance measurement. Measurement is only ac-
tive when no equalizing (bypass switched off) occurs.
Voltage Measure:
Measuring channel for voltage measurement.
Bypass:
The bypass channel enables a cross-ow that is used
both for equalizing and as an offset-signal generator. Ap-
propriately deployed resistances serve as a fuse in the
case of a bypass short circuit.
Temp. Measure:
A sensor outside the board records the battery tempe-
rature. These data are important for monitoring whether
the thermal range of application is adhered to and at the
same time to initiate any necessary corrections, e.g. of
the nal charging voltage.
Controller:
The controller records, controls and processes all si-
gnals and data. Additionally, it secures data exchange
via the communication channel.
Indication:
The integrated LED displays the operational readiness
of the module via a ashing signal. Other optical messa-
ges are conceivable.
Communication Port:
The galvanically isolated communication channel ena-
bles data exchange with parent systems; the connection
enables all subscribers to listen, and just one replies to
the central module.
Heat sink:
The electrical energy generated via e.g. equalizing is
dissipated as heat.
Carrier:
A carrier for afxing each RTV module is adapted to
each battery type.
Panel:
Board for the RTV module electronics.
Structure of the overall BACS system:
All batteries in the system are equipped with a control unit
(data collection, battery controller) – the “RTV” module.
The bus system guides all data to the BACS nerve
centre, the core module. This handles the entire
management of the battery pack including signal output.