Infineon's 12 V to 24 V BMS accurately monitors, protects, and optimizes battery performance. This automotive battery management system features low-power standby modes for diagnostics, monitoring SOC, SOE, SOH, SOP, SOS, temperature, cell voltages, and currents (including quiescent currents) of cel Contact online >>
Infineon''s 12 V to 24 V BMS accurately monitors, protects, and optimizes battery performance. This automotive battery management system features low-power standby modes for diagnostics, monitoring SOC, SOE, SOH, SOP, SOS, temperature, cell voltages, and currents (including quiescent currents) of cells and the vehicle.
Click the block diagram to check Infineon''s highly integrated and space-saving offers, including supply IC, microcontroller, monitoring IC, balancing IC, pressure sensor, gate driver, power MOSFET, and transceivers.
Ensure 12V and 24V battery availability and diagnosis at all time with ultra-low standby power consumption
Low-voltage 12V and 24V batteries are important for ensuring the power availability of the low-voltage bus in passenger and commercial vehicles. The key function of the low-voltage availability battery is to:
The low voltage BMS is especially important for xEVs, due to the main characteristics below:
Battery packs are constructed by connecting numerous single cells in series, which inevitably result in production variances, for example, different cell characteristics, capacities, or heterogeneous thermal spreads in the pack.
Over time, the small differences between cells in multicell battery stacks are magnified during each charge and discharge cycle. Weaker cells with lower capacity reaching maximum voltage sooner than others force the charging process of the entire pack to stop; in this case, the full capacity of the battery cannot be used.
As a result, using the automotive cell monitoring and balancing (CMB) device to compensate the weaker cells by equalizing the charge across the entire stack is essential in extending an electric vehicle''s driving range and lifetime.
Additionally, to achieve extremely low-power dedicated housekeeping functions, such as periodically scheduled cell measurements and state analysis required for functional safety, the CMB can operate independently of the BMS''s master controller. Safety features such as signaling over- or under-voltage, thermal stress, and emergency alarms are triggered autonomously.
The CMB topologies are characterized by cell counts and isolation requirements. More stacked battery cell monitoring and balancing devices are required as the number of series cells in a battery pack increase. Isolation is critical, especially in high-voltage battery management systems, where the battery pack must be isolated at all times and the master controller is connected to the 12 V domain.
Isolated wired BMS topology: Infineon provides iso UART transceiver solutions with exceptional robustness for both capacitive and inductive isolation. The iso UART supports complicated cell topologies by enabling high-speed communication across many daisy-chained monitoring devices. For additional robustness, redundant ring daisy-chaining ensures continuous communication even if a link breaks. CRC-protected data frames complement communication robustness.
Isolated wireless BMS topology: Alternatively, to meet the even higher requirement of isolating CMBs, a wireless transceiver is a perfect solution. Infineon offers a set of automotive-grade Bluetooth® devices that support BLE-connected mesh, offering superior network availability and communication bandwidth.
Infineon''s highly integrated products significantly decrease the footprint and help customers reduce costs by minimizing PCB size. Besides, Infineon''s zero-defect Mindset is reflected in the lowest PPM rates in the market and significantly reduces vehicle downtime and returns.
Battery Monitor – Expert Pro (12V-24V) & Expert Pro-hv (48V)
All battery monitors of TBS Electronics focus on summarizing the available information of the battery as efficient and precisely as possible. The e-xpert pro battery monitor selectively displays battery voltage, charge- and discharge current, consumed amphours, remaining capacity and time remaining. The e-xpert pro uses a large and clear backlit LC display to intuitively read the status of the battery.
The Expert Pro is compatible with lead based and Lithium batteries (LiFePO4).
Displaying the various parameters of a battery is a complex task. Battery age, discharge current and temperature all influence parameters like the available battery capacity and time remaining. With the applied knowledge of TBS Electronics, it is now possible to accurately read the status of your battery while taking all factors into account.
The Expert Pro battery monitor is easy to install and operate and comes standard with a high precision 500 Amp shunt. The standard Expert Pro battery monitor is compatible with 12V and 24V battery systems, while the Expert Pro-hv offers direct connection to 36V, 42V and 48V battery systems. All Expert Pro battery monitors are also compatible with lithium batteries.
The internal alarm relay enables you to run a generator when needed or to turn off devices when the battery voltage exceeds programmable boundaries.
The Expert Pro battery monitor is the result of more than 15 years of research, development and field experience. Putting all this knowledge in the e-xpert pro battery monitor, leads to a very accurate battery status readout, intuitive user interface and an excellent set of features.
Now available from stock (TBS art# 5079042), our flexible 75A Link Plate. This enables our smaller 300A MEGA and ANL fuse holders to be linked […]
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