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ADAS and Highly Automated Driving
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Body and Comfort
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Connectivity
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Functional Safety and Automotive Security
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Infotainment and IVE
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Powertrain & Vehicle Dynamics
- Active Suspension
- Braking and Stability Control
- Electrification
- Electric Power Steering (EPS)
- Transmission and Gearbox
- HV-LV DC-DC Converter
- EV Auxiliary Systems
- 48-Volt-LV DC-DC Converter
- 48-Volt Starter Generator
- Traction Inverter
- On-Board Charger (OBC)
- DC Fast EV Charging
- Powertrain Control Module (PCM)
- Gate Driver Solutions
- Battery Management Systems (BMS)
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Vehicle Networking
48-Volt-LV DC-DC Converter
The 48-Volt-LV DC-DC converter, also known as a 48V-LV DC-DC converter, is a power conversion device used in hybrid and mild-hybrid vehicles that utilize a 48-volt electrical system. It plays a crucial role in managing power distribution between the higher-voltage components and the lower-voltage systems in the vehicle.
The 48-Volt-LV DC-DC converter is designed to convert the high-voltage electrical power from the 48-volt battery system to a lower voltage level suitable for powering various low-voltage systems and components in the vehicle. It ensures compatibility and proper operation of these systems, including lighting, infotainment, HVAC, power windows, and other electrical accessories.
The 48-Volt-LV DC-DC converter is integrated into the vehicle's electrical system and connected to the high-voltage battery, 48V electrical architecture, and various low-voltage components. It may communicate with the vehicle's control unit or power management system to monitor and manage power flow, system diagnostics, and fault detection.
With the increasing adoption of 48-volt electrical systems in hybrid and mild-hybrid vehicles, ongoing research and development focus on improving the performance, efficiency, and reliability of 48-Volt-LV DC-DC converters. This includes advancements in power electronics, control algorithms, and thermal management techniques to enhance efficiency, reduce size, and accommodate the evolving needs of vehicle electrical systems.
The 48-Volt-LV DC-DC converter plays a crucial role in hybrid and mild-hybrid vehicles, facilitating the power distribution from the higher-voltage systems to the lower-voltage electrical components. Its proper operation ensures the seamless integration and efficient functioning of various vehicle systems, contributing to enhanced performance, energy efficiency, and overall vehicle operation.
Reference Design
Technical Documentation
- App note: Top Cool Package for Power Discrete MOSFETs
- Recommendations for Reliable Switching Performance Using 40V and 80V Automotive Power Modules Using Shielded-Gate MOSFETs
- Ask the Expert: 48-Volt Automotive Electrical Systems Emerging
- Zero-Drift Precision Op Amps: Advantages and Limitations of the Chopper-Stabilized Architecture
- Low VCE(sat) BJT’s in Automotive Applications
- Basics of In-Vehicle Networking (IVN)
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