Bidirectional Isolated DC/DC converter

Overview

ADM-PC-BI25 (or known as BI25) is an advanced DC/DC power converter that provides reinforced galvanic isolation between its two ports without the need for a large mains frequency transformer. The converter is fully bidirectional and isolated able to operate at up to 50 kW power and 1000 V with 98.7% peak efficiency.

The thermal system of this converter is specially built to allow BI25 to rely entirely on conductive heat transfer, enabling the system to be installed in a sealed enclosure. The integrated control system features overvoltage, overcurrent and overtemperature protection systems to enhance operational safety. The unit is controlled via an industry standard CAN v2.0B bus. All its control signals are published via KCD/DBC files allowing easy integration into a supervisory control system.

In combination with our bidirectional power converter ADM-PC-BP25, the BI25 can be built in parallel in DC/DC mode to achieve power delivery at megawatt scales.

Thanks to its compact, robust and a simplified design system, BI25 can operate in extreme environments including high altitudes up to 3000 metres — helping you implement the Megawatt Charging System (MCS) wherever you need.

Looking to deploy MCS charging stations or simply charge a battery from the grid? We’ve got you covered.

Applications

Megawatt scale DC fast charging
Battery assisted EV charging
High-power V2G EV chargers
Microgrid energy storage systems
Marine battery propulsion systems
Data centre Unlimited Power Supply
Tactical Power Systems for Defence
Solid State Transformers

Technical Data

Electrical

Side A and Side B voltage range

200 to 950 V

Voltage Conversion Ratio

1 to 1

Side A and Side B Current Range

-60 to 60 A

Power Rating

Max 50 kW

Protection Features

Overvoltage, overcurrent, overtemperature, external interlock

Power flow

Bidirectional

Efficiency

98.7% peak at 950 V 50 kW

Measurement Accuracy

±2% (±1% typical)

Power Density

7.52kW/kg or 8.48kW/L

Operating Heatsink Temperature

-20°C to 65°C

Side A Bus Capacitance

80 uF ± 10%

Side B Bus Capacitance

80 uF ±10%

Y Capacitance (Side A to heatsink)

29.7 nF

Y Capacitance (Side B to heatsink)

29.7 nF

Control Interface

Connector

8-Pin JST CPT

Voltage Range

20 to 28 V

Power Consumption

15 W max

Communication

CAN bus at 500 kbps

Chaining

Up to 32 devices of the same type

Mechanical

Assembly

Flat plate for easy integration

Cooling

Air and liquid

Weight

6.65 kg

Volume

5.9 L

Dimensions

260 x 350 x 65 mm

Power Connectors

Wurth 7466005R (M5)

Standards and Isolation

Standards

Designed for IEC62477-1 and IEC61851-23

Overvoltage Category

OVC-III

Altitude

Up to 3000 m

Pollution Degree

PD2

Impulse Withstand Voltage

6000 V for all the barriers

Clearance Distance

Minimum 6.27 mm for all barriers

Creepage Distance

Minimum 6.4 mm in PD1 microenvironment Minimum 10 mm otherwise

Side A to Heatsink