EPC Bidirectional DC/DC converters
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Datasheet EPC isolated series 1v9 – 28/01/2022 EPC Bidirectional DC/DC converters KEY FEATURES Wide voltage range Voltage and current control Soft start from 0 V High efficiency Galvanic isolation Power scalable. Paralleling. Protections (Overcurrent, overvoltage, overtemperature) CAN communication Custom design under request MPPT from PV isolated series TYPICAL APPLICATIONS Power supply Smart grids Battery charger Energy storage systems Energy recovery Hydrogen generation Battery hybridation Solar panels - MPPT The EPC is a family of bidirectional DC to DC power converters that can be used in a broad number of applications. They provide ultra-high efficiency in both directions with galvanic isolation. Standalone configuration with Soft-Start and wide voltage ranges allow fast and easy setup. Several converters can be connected in parallel in order to reach higher power. CAN communication can be used to implement voltage or current control and measures all the main relevant operation parameters. ELECTRICAL SPECIFICATIONS Model Peak power Nominal power High side voltage High side current (max) High to Low side: 2.5 kV; High side to earth: 4kV; Low side to earth: 1.5 kV (2.5 kV for EPC-4k8-6125) Low side to user signals: 3kV (5 kV for EPC-4k8-6125) Digital control self-powered from high or low voltage side (low side prioritized) Subject to change without notice

Datasheet EPC isolated series 1v9 – 28/01/2022 GENERAL SPECIFICATIONS Item Operating temperature Storage temperature Air cooled (Fans only ON when needed) CAN 2.0B: Bus speed typical 125kbps (min 125kbps, max 500kbps) Messages period: Default value: 250ms; Minimum value: 50m; Maximum value: 1000ms Communication protocol MTBF TELCORDIA SR-332, Issue 3: >350400 hours (PRELIMINARY) No electrolytic capacitors in DC links (Long life FILM capacitors) Fan replacement >70000 h REGULATIONS Directive Low Voltage Regulations (LVD): European directive 2014/35/UE Electromagnetic Compatibility...

Datasheet EPC isolated series 1v9 – 28/01/2022 ELECTRICAL CONNECTIONS SIZE 1 SIZE 1 & SIZE 2 & SIZE 3: PERIPHERICAL CONNECTORS Outputs to controller Common Status OK (NO) Temperature warning (NC) Temperature warning (NO) Reserved (NO) Reserved (NO) Earth Leakage detection (NO) Reserved (NO) Reserved Reserved Reserved RC Charger + (Optional) RC Charger – (Optional) Inputs from controller Common Enable DC/DC Safety Disconnection Connector 1: Potential-free relay contacts. Max Voltage 24Vdc / 250Vac. Max Current 3A Connector 4: Max current of each terminal is 20A. Place gR 25A external fuses...

Datasheet EPC isolated series 1v9 – 28/01/2022 A UTONOMOUS MODE Parameter Mode Power direction Description Change between Autonomous Mode and Current Controlled Mode Configure the power flow: 1) Bidirectional 2) Charging direction 3) Discharging direction C URRENT C ONTROL MODE Default value: EPC-3k5-648i Autonomous Mode Power direction Change between Autonomous Mode and Current Controlled Mode Autonomous Mode Configure the power flow: 1) Bidirectional 2) Charging direction 3) Discharging direction Target voltage when the load connected to EPC generates energy Maximum allowable HVDC voltage...