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South Korean semiconductor company developing embedded RCD PCB modules for EV chargers and FeRAM-based technologies.

Last updated September 29, 2026

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Overview

EFRAM (에프램) is a South Korean semiconductor company that specializes in embedded residual current device (RCD) PCB modules for electric vehicle (EV) chargers, as well as FeRAM and RFID technologies. According to its official website, the company has secured original patented technologies for implementing ultra-low-power, ultra-compact semiconductor chips. Its flagship products include the EFRAM C1-A, C2-B, and C3-C series, which are embedded A-type and B-type RCD PCB modules designed to be soldered directly onto the main PCB of EV chargers. These modules operate at 3.3V, sharing the same power supply as the MCU, which eliminates the need for a separate RCD installation and enables low power consumption, miniaturization, and cost reduction. The company also holds patents related to B-type RCD technology (patent numbers 102039268, 102039269, 102039270, 102039271, 102039272). EFRAM aims to grow into a global semiconductor company by expanding its product lineup into IoT, RFID, and FeRAM applications. The company is based in South Korea and operates primarily in the domestic market, with potential for global expansion. Its official website provides product information and contact details, and it actively protects its intellectual property against infringement.

History

EFRAM (에프램) is a South Korean semiconductor company that has developed proprietary technologies for embedded residual current device (RCD) modules used in electric vehicle (EV) chargers. The company's official website states that it has secured original patented technologies for implementing ultra-low-power and ultra-compact semiconductor chips. Its core innovation involves embedding A-type and B-type RCD functionality directly onto the main PCB of EV chargers, operating at 3.3V and sharing the same power supply as the MCU. This approach eliminates the need for a separate RCD installation, resulting in lower power consumption, smaller size, and reduced cost. EFRAM holds multiple patents related to B-type RCD technology, including patent numbers 102039268, 102039269, 102039270, 102039271, and 102039272. The company also possesses foundational technologies for high-performance FeRAM, FeRAM-embedded RFID, and related IoT applications. EFRAM's product lineup includes the EFRAM C1-A, C2-B, and C3-C series, which are categorized under Power Converter & Regulator, Sensor Interface Set, and IoT RFID FeRAM. The company aims to expand globally and become a world-class semiconductor company by advancing its product development in IoT, RFID, and FeRAM. While specific founding details and leadership names are not provided in the available evidence, EFRAM continues to promote its patented technologies and protect its intellectual property against infringement.

Products and positioning

Provider of patented embedded RCD PCB modules for EV chargers, targeting ultra-low-power, compact, and cost-effective semiconductor solutions.

  • EFRAM C1-A

    Power Converter & Regulator with wide operating voltage range, low power consumption, and low standby current.

  • EFRAM C2-B

    Power Converter & Regulator for industrial, home, and IoT electronic devices, featuring wide operating voltage range and high power efficiency.

  • EFRAM C3-C

    Sensor Interface Set and IoT RFID FeRAM product series.

  • Embedded A-type RCD PCB Module (3.3V)

    Embedded A-type (DC 6mA) RCD (EV-Ready) PCB module for EV chargers, compliant with KC 61851-1 ed3.0.

  • Embedded B-type RCD PCB Module (3.3V)

    Embedded B-type RCD PCB module for EV chargers, compliant with IEC 62752 (IC-CPD), KC 61851-1 ed3.0, and KC 61851-23.

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