What are On-Board Chargers?

On-board chargers are power electronic systems integrated within electric vehicles to convert AC power from external sources into regulated DC power for charging the vehicle battery. They manage the interface between the electrical grid and the battery pack, ensuring controlled energy transfer while meeting electrical safety, efficiency, and electromagnetic compatibility requirements.

The operation of an on-board charger is defined by its power conversion topology, control algorithms, and compatibility with battery characteristics. These systems regulate voltage and current during charging, adapt to different AC supply conditions, and play a critical role in charging performance, thermal behavior, and overall vehicle energy efficiency.

Key Specifications

• Configuration: Describes the internal electrical architecture of the on-board charger, which influences power flow paths, redundancy, scalability, and integration with vehicle systems.
• Cell Type: Indicates the type of battery cells the charger is designed to support, affecting charging profiles, voltage limits, and control strategies required for safe operation.
• AC Input Voltage: Specifies the allowable AC supply voltage range that the charger can accept, determining compatibility with different grid standards and charging infrastructure.
• Frequency: Defines the AC input frequency supported by the charger, impacting filter design, control timing, and global grid compatibility.
• DC Output Voltage: Represents the regulated DC voltage delivered to the battery during charging, which must align with battery pack voltage requirements.
• DC Output Current: Describes the charging current supplied to the battery, influencing charging speed, thermal loading, and battery aging behavior.
• DC Output Power: Defines the total electrical power the charger can deliver to the battery, combining output voltage and current capability.
• Efficiency: Indicates how effectively the charger converts AC input power into usable DC output power, affecting energy losses, heat generation, and overall vehicle charging efficiency.

The Largest Database of On-Board Chargers

everything PE has listed On-Board Chargers from the leading manufacturers and made them searchable by specification. You can enter the key parameters and the search tool will scan catalogs from the leading manufacturers to identify products that meet your spec. Once you find On-Board Chargers that meet your requirement, you can view product information, download datasheets or request quotations. Quotation requests will be routed to the manufacturer of the product who will get back to you directly. The quotation will also be routed to distributors of the product in your region.