POWER Conversion & Distribution CDU
DC DC converters for electric vehicles are vital for efficient energy management, converting high-voltage battery power into low-voltage electricity for essential vehicle systems. Our range of converter EV solutions ensures reliable performance, compact design, and superior energy efficiency. Paired with advanced EV power distribution units, these components enable seamless power delivery, enhancing safety and operational stability in electric vehicles. Browse our selection to find the perfect fit for your EV technology needs.
POWER Conversion & Distribution Systems for Electric Vehicles | PUMBBA
PUMBBA is a leading provider of high-efficiency electric vehicle drive systems, specializing in cutting-edge power conversion and distribution solutions. Our expertise spans across the design and manufacture of Permanent Magnet Synchronous Motors (PMSM), Motor Controllers (MCU), Vehicle Control Units (VCU), and essential power supply systems including DC-DC Converters, On-board Chargers (OBC), Inverters (DCAC), and Power Distribution Units (PDU). We deliver intelligent and integrated solutions to power commercial electric vehicles with precision, performance, and reliability.
CDU – Centralized Distribution Unit
A CDU (Centralized Distribution Unit) is a critical component in electric vehicle architecture. It functions as the central hub for distributing electrical power from the main battery to subsystems like lighting, air conditioning, and auxiliary electronics.
PUMBBA’s CDU Features:
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Intelligent power routing for optimized energy usage
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High-voltage safety protection and real-time diagnostics
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Compact design for seamless integration into EV platforms
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Compatible with both 400V and 800V EV architectures
Our CDUs are engineered to ensure stable and efficient energy delivery, reducing energy loss while enhancing vehicle reliability and performance.
DC-DC Converters for Electric Vehicles
DC-DC converters are essential for stepping down high-voltage power from the EV battery to low-voltage levels (typically 12V or 24V) to power vehicle accessories and onboard electronics.
Why Choose PUMBBA DC-DC Converters:
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High conversion efficiency (>95%) to minimize energy waste
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Compact and lightweight for space optimization
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Active cooling systems for thermal management
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Multiple output voltage options to suit diverse EV needs
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CAN communication and fault diagnostics
PUMBBA’s EV DC-DC converters are designed for durability in harsh environments, ensuring long-term operation in commercial electric trucks, vans, and buses.
PDU – Power Distribution Unit
The Power Distribution Unit (PDU) plays a key role in managing and distributing electrical power from the main battery to critical vehicle components like the motor, DC-DC converter, OBC, and auxiliary systems.
Key Advantages of PUMBBA PDU Systems:
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Integrated fusing and circuit protection
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Real-time monitoring of voltage and current
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Customizable interface and layout for OEM requirements
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ISO 26262 and ASIL compliance for functional safety
Our EV PDUs are developed with robust protection systems and smart controls to support high-voltage environments and ensure seamless power delivery in all driving conditions.
EV PDU & Power Management for Commercial Vehicles
PUMBBA offers EV PDUs tailored for commercial electric vehicles, enabling reliable and centralized control of power flow throughout the vehicle system. Our PDUs support integration with various EV subsystems, optimizing performance and safety.
Applications:
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Electric buses
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Logistics and delivery vans
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Construction and utility EVs
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Long-haul electric trucks
With modular designs and OEM flexibility, PUMBBA’s EV PDUs are ideal for building scalable and serviceable power systems for electric fleets.
Why PUMBBA for Electric Vehicle Power Systems?
With years of experience in EV system integration, PUMBBA delivers a full-stack electric drive platform solution — from motors and motor controllers to VCUs and power electronics.
Our Strengths:
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Proven engineering in high-efficiency PMSM and MCU systems
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Complete powertrain and energy management ecosystem
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Tailored solutions for various commercial EV applications
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Support for global OEM partners with fast customization cycles
Partner with PUMBBA for Next-Generation EV Power Conversion and Distribution
Whether you're designing electric trucks, buses, or utility vehicles, PUMBBA’s CDU, DC-DC converters, and PDU units offer the advanced performance and reliability required to meet your EV goals.
Contact us today to learn more about our electric vehicle power distribution systems and how we can power your next-generation mobility solutions.
Highly Integrated Design for Maximum Efficiency
With seamless electrical integration, the unit consolidates multiple functionalities into a smaller, lighter form factor, reducing complexity while enhancing technical performance and energy efficiency.
Automotive-Grade Durability and Safety
Built with ASIL-compatible automotive-grade components, the PDU ensures unparalleled reliability and compliance with rigorous industry standards. Advanced protection features, including EMC, insulation, vibration, and voltage resistance, safeguard the system across diverse conditions.
Versatile Multi-Scenario Support
The PDU supports emerging EV requirements such as V2L (Vehicle-to-Load), V2G (Vehicle-to-Grid), and V2V (Vehicle-to-Vehicle), making it adaptable to various applications and future-ready for evolving energy ecosystems.
Exceptional Thermal Management
The liquid-cooled cooling method offers rapid heat dissipation, maintaining stable performance even under high-load conditions. Its dustproof and low-noise operation ensures durability and a quieter driving experience.
Highly Integrated Design for Maximum Efficiency
With seamless electrical integration, the unit consolidates multiple functionalities into a smaller, lighter form factor, reducing complexity while enhancing technical performance and energy efficiency.
Automotive-Grade Durability and Safety
Built with ASIL-compatible automotive-grade components, the PDU ensures unparalleled reliability and compliance with rigorous industry standards. Advanced protection features, including EMC, insulation, vibration, and voltage resistance, safeguard the system across diverse conditions.
Versatile Multi-Scenario Support
The PDU supports emerging EV requirements such as V2L (Vehicle-to-Load), V2G (Vehicle-to-Grid), and V2V (Vehicle-to-Vehicle), making it adaptable to various applications and future-ready for evolving energy ecosystems.
Exceptional Thermal Management
The liquid-cooled cooling method offers rapid heat dissipation, maintaining stable performance even under high-load conditions. Its dustproof and low-noise operation ensures durability and a quieter driving experience.
FAQs for EV power distribution unit
The 4-in-1 CDU unit integrates DC-AC, DC-DC converter, and PDU functions into a single system, reducing energy losses and improving efficiency up to 98%. Its high power density and streamlined design optimize energy conversion and distribution for extended range and better performance.
The PDU supports advanced functions like V2L (Vehicle-to-Load), V2G (Vehicle-to-Grid), and V2V (Vehicle-to-Vehicle). These features enable energy sharing, efficient grid integration, and versatile utility options for EV users, enhancing the vehicle’s flexibility in different scenarios.
The PDU incorporates multiple protection features, including electromagnetic compatibility (EMC), insulation, vibration resistance, and voltage protection. Additionally, it monitors and allocates high-voltage devices via the vehicle control unit, ensuring comprehensive safety across all systems.
The liquid-cooled system ensures rapid and efficient heat dissipation, maintaining stable performance under high loads. Its design also minimizes noise and prevents dust ingress, improving reliability and durability in demanding environments.
The PDU’s automotive-grade design and wide operational temperature range enable it to perform reliably in extreme conditions. Its robust construction ensures long-lasting functionality, even in challenging environments like high temperatures, heavy vibrations, and dusty terrains.
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