Stackable BMS solutions
Comprehensive stackable BMS system offering for applications >72 V, such as Energy Storage Systems (ESS) and light electric vehicles (LEVs)
The BMS is essential to protect batteries against fault conditions. Multiple cell monitoring and balancing ICs are stacked in series communicating the vital battery cell data through a transceiver to the main BMS controller. Good isolation and reliable protection is required for these HV packs. On this page, you can find information about BMS for stackable battery packs, an architecture widely used in applications like ESS, EVs, and LEVs.
Benefits:
- Higher charge/discharge efficiency
- Accurate voltage sensing
- Efficient battery protection
- Wireless topology available
Energy storage has been an integral component of electricity generation, transmission, distribution, and consumption for many decades. Today, with the growth of renewable energy generation, the power landscape is changing. Battery-based ESS technology can respond to power drop-outs in under a second, making use of clean energy, sourced from solar or wind plants. In such "before-the-meter" cases, ESS functions as bulk storage coupled with either renewables generation or transmission and distribution systems. In residential and commercial situations, ESS plays a role in "behind-the-meter" systems.
In the times of increasing popularity of e-mobility solutions, it can be expected that in the future the world will have to cope with a significant number of used EV batteries. To overcome this limitation, modularly cascaded, multilevel architectures that utilize the benefit of highly efficient, low voltage MOSFETs like Infineon's market leading OptiMOS™ family have been developed. The BMS handles cell charging, balancing, and health monitoring, complemented by a microcontroller providing system control and communication, which are essential elements to integrate ESS into larger systems.
Learn more about OptiMOS™ MOSFETs and Discover Infineon ESS
Battery powered vehicles have increased in popularity over the past few years. These LEVs require high current capability, and therefore, new types of lithium-ion cells have started to take over this application. It is important that each battery has a robust and safe Battery Management System (BMS) board. In 144 V microcars, the architecture is modular, allowing the design, through several ICs in series, to manage all cells. This architecture comes closer to the usual automotive design, with isolation needed, but the voltage rating and the component grading push this application into the industrial and consumer markets instead, reducing overall BOM compared to traditional automotive designs. High power eScooters or rickshaws also use a modular architecture, allowing for a simpler and safer design.
Learn more about Infineon LEV solutions
In battery management systems, a compact and reliable solution that powers the entire system is required. Here, several components can be integrated, in order to manage extreme battery voltage fluctuations. Infineon's portfolio of power management ICs (PMICs) meet these requirements and more, including the latest network interfaces and automotive security.
PMICs support comprehensive power supplies with a small form factor footprint for system solutions using Infineon's TRAVEO™, AURIX™, and PSoC™ MCU families. Boost function integrated into the PMICs avoids system blackout under extreme battery voltage fluctuations. The low quiescent current of the PMICs reduces the standby current of always-on functions. The PMICs comply with AEC-Q100, and extensive system safety functions help to comply with modern vehicle ECU requirements.
Infineon's OPTIGA™ Authenticate S turnkey hardware-based security solution is suited to an ever-expanding range of applications including single-use disposables such as HVAC and water filters and purifiers, cartridges, rechargeable batteries for smartphones, portable devices, e-scooters, e-motorbikes, LEVs, and other mobility solutions, as well as computing and robotics systems in highly complex IoT environments. The turnkey solution comes with full system integration support including embedded software, host software and advanced ecosystem support tools based on the latest PSoC™ 6 MCUs.
Learn more about OPTIGA™ Authenticate S
Infineon's portfolio of 85 V to 300 V N-channel MOSFETs are ideal for use as medium voltage switches in BMS battery protection in applications such as uninterruptable power supplies, solar powered applications, forklifts, and light electric vehicles. With ultra-low reverse recovery charges (Qrr) and excellent on-state resistance (RDS), these MOSFETs lead to an overall system cost reduction. On the other hand, we also offer a large product portfolio of N-channel MOSFETS in the 85 V to 300 V range that are automotive qualified. To find out more, visit our automotive MOSFET page.
With an extensive product portfolio of N-channel MOSFETS in the 85 V to 300 V range, Infineon meets your needs for both industrial and automotive applications.
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