Output Power: 4KW
Input Voltage Range: 350-750Vdc
Output Voltage: 27.5Vdc
Output Current: 218A
Operation Temp. Range: -40℃-85℃
Cooling Method: Air
Storage Temp.: -40℃-85℃
Ripple&Noise: ≤500mVp-p
Dimension: （293±1）mm×(236±1)mm×(116±1)mm
A DC-DC converter is a crucial component in electric buses, responsible for converting high-voltage DC power from the main battery pack to a lower voltage DC power suitable for various auxiliary systems within the bus. Here’s a detailed look at its function and importance:
Voltage Conversion: The primary function of a DC-DC converter in an electric bus is to step down the high voltage from the main battery pack (typically ranging from 400V to 800V) to a lower voltage (usually 12V or 24V). This lower voltage is necessary for operating auxiliary systems such as lighting, infotainment, air conditioning, and control systems.
Power Distribution: By converting the high-voltage DC power to a lower voltage, the DC-DC converter ensures that all the auxiliary systems receive a stable and appropriate power supply, which is essential for their proper functioning.
Efficiency: High-efficiency DC-DC converters minimize energy loss during the conversion process, which is crucial for maximizing the overall efficiency of the electric bus and extending its range.
Safety: Proper voltage conversion and regulation help in maintaining the safety of the electrical systems within the bus. Over-voltage or under-voltage conditions can damage sensitive electronic components, so the DC-DC converter plays a vital role in protecting these systems.
Reliability: A reliable DC-DC converter ensures that auxiliary systems operate smoothly without interruptions, contributing to the overall reliability and comfort of the electric bus.
Compact Design: Modern DC-DC converters are designed to be compact and lightweight, which is beneficial for the overall design and weight management of the electric bus.
In summary, the DC-DC converter is an essential component in electric buses, ensuring efficient and reliable power conversion and distribution to various auxiliary systems, thereby enhancing the overall performance and safety of the vehicle.
