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OnBoard Charger

High-Efficiency Power Conversion for EVs

An On-Board Charger (OBC) is a key subsystem in electric and plug-in hybrid vehicles (EVs/PHEVs), responsible for converting alternating current (AC) from the grid into regulated direct current (DC) to charge the battery pack. To meet the increasing demands for higher power density, efficiency, and reliability in compact designs, Premo provides a range of advanced electromagnetic components tailored for OBC applications.

Premo Components in OBC Systems

Power Inductors:

Integral to the power factor correction (PFC) stage and DC/DC converters, handling energy storage, filtering, and smoothing.

Common Mode Chokes (CMC):

EMI suppression in the AC input stage of OBCs, ensuring compliance with CISPR 25 and ISO 11452 standards.

Planar Transformers:

Provide galvanic isolation and high-efficiency power transfer in the DC/DC stage.

Current Sensors:

Enable precise current monitoring for PFC and battery charging control loops.

Ferrite Cores:

Core components for inductors and transformers, enabling high magnetic flux densities with minimal losses.

Thermal Management Solutions:

Dissipate heat generated by high-power OBC operation to maintain system reliability.

Why Premo? A Technical Advantage in OBC Design

  • High-Frequency Expertise: Premo’s components are engineered for modern high-frequency (>150 kHz) power electronics, reducing size and weight while increasing efficiency.
  • Thermal Performance: Specialized materials and designs to handle high-power density systems with ambient temperatures exceeding 150°C.
  • Compliance Assurance: All components meet automotive standards (AEC-Q200, IATF 16949) and EMI/EMC requirements, ensuring system reliability and regulatory compliance.
  • Global Engineering Support: Technical assistance and design customization to optimize OBC performance and integration.

Premo components empower OEMs and Tier 1 suppliers to achieve higher performance and reliability in On-Board Charger systems, ensuring efficient and sustainable EV charging solutions.

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