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Portable EV Charger

Overview

This system is a versatile, battery-powered electric vehicle (EV) DC charger design for mobile charging. It serves as a "Virtual Gas Can," ideal for service companies and roadside assistance, enabling vehicle charging in locations without access to permanent charging stations. The charger can be powered by a 48V battery stack, and the optional Bluetooth® feature eliminates the need for a control panel, reducing costs while providing charger status updates.

System Benefits​:

  • Level 2 support for faster remote charging time per mile.
  • Bluetooth interface for smartphone/tablet connectivity to monitor status.
  • Compact and portable design for easy transportation.

Block Diagram

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WebSheet.684Sheet.685Sheet.423Sheet.679Sheet.680Sheet.1Sheet.2Sheet.3Sheet.4US256US256US256Ground (earth)Sheet.11Sheet.12Sheet.13Bluetooth Low EnergyBluetooth Low Energy ModuleBluetooth Low Energy ModuleLevel ShifterLevel ShifterLevel ShifterInductor Iron CoreLine.841Inductor Air Core.212Sheet.131Sheet.132Sheet.133Sheet.134Sheet.135Sheet.136Sheet.137Sheet.138Sheet.139Line.29Inductor Iron Core.147Line.841Inductor Air Core.212Sheet.150Sheet.151Sheet.152Sheet.153Sheet.154Sheet.155Sheet.156Sheet.157Sheet.158Line.29GroundSheet.186Sheet.187PLC/CAN Physical LayerPLC/CAN Physical LayerPLC/CAN Physical LayerEV Charge ConnectorEV Charge ConnectorEV Charge ConnectorSheet.193Sheet.194+++---Sheet.214Sheet.216Sheet.217Sheet.218Sheet.219 3.3V3.3V3.3V3.3V3.3V3.3V5.0V5.0V5.0VLevel ShifterSheet.228Sheet.113Sheet.114Sheet.115Sheet.116Sheet.117Sheet.118Sheet.119Sheet.120Sheet.121Sheet.122Sheet.123Sheet.124Sheet.126Sheet.127Sheet.229Connector 1.230Sheet.231Sheet.232Sheet.233Sheet.234Sheet.235Sheet.236Sheet.237Sheet.238Sheet.239Sheet.240Sheet.241Sheet.242Sheet.243Sheet.244Sheet.245Sheet.246Sheet.247Sheet.249Connector 1.250Sheet.251Sheet.254Sheet.25612.0V12.0V12.0VSheet.261Sheet.265Sheet.266Connector 1.267Connector 1.268Connector 1.269Inductor Coreless (Air conductor)Sheet.302Sheet.303Sheet.304Sheet.305Sheet.306Sheet.307Sheet.308Sheet.309Sheet.310Sheet.312Sheet.313Sheet.315Ground.316Sheet.317Sheet.318Sheet.262 5.0V5.0V5.0V5V/ISO5V_ISO5V_ISOResistor.321Connector 1.327Sheet.328Sheet.329Sheet.331Connector 1.332Resistor.334Sheet.338Sheet.339Connector 1.340Sheet.341Sheet.342Sheet.343Sheet.344Sheet.345Connector 1.351Connector 1.3525V/ISO5V_ISO5V_ISOSheet.355100 to 500VDC100 to 500VDC100 to 500VDCSheet.35848VDC48VDC48VDCSheet.14Sheet.15Sheet.16Sheet.17Sheet.18Connector 1.225Sheet.363Sheet.19Sheet.20Sheet.21Sheet.22Sheet.23Connector 1.227Sheet.364Sheet.24Sheet.25Sheet.26Sheet.27Sheet.28Connector 1.226Isolation AmplifierIsolation AmplifierIsolation AmplifierSheet.385MCUMCUMCUMCUVCCVCCVCCADCADCADCSCISCISCISCI/CANSCI/CANSCI/CANADCPWMPWMCMP/ADCCMP/ADCCMP/ADCConnector 1.400Sheet.401Connector 1.402Sheet.403Sheet.404Sheet.405Resistor.406Sheet.408Sheet.409Sheet.410Ground (earth).413Sheet.414Sheet.415Sheet.416Sheet.417 12.0V12.0V12.0V 5.0V5.0V5.0V 3.3V3.3V3.3V 12V.6825.0V5.0VSheet.683Sheet.687Connector 1.688DiodeSheet.690Sheet.691Sheet.692Diode.693Sheet.694Sheet.695Sheet.696Sheet.697Sheet.698Sheet.699Sheet.700Sheet.701Sheet.702Sheet.703Sheet.704Sheet.705Connector 1.706Transformer Inductor Coreless (Air conductor)Sheet.708Sheet.709Sheet.710Sheet.711Sheet.712Sheet.713Sheet.714Sheet.715Sheet.716Sheet.717Connector 1.719Sheet.720Ground - SignalSheet.722Sheet.723Sheet.724Sheet.725Sheet.726Ground - Signal.727Sheet.728Sheet.729Sheet.730Sheet.731Sheet.732Ground - Signal.733Sheet.734Sheet.735Sheet.736Sheet.737Sheet.738Sheet.740Sheet.741Sheet.742Sheet.743Sheet.747Gate DriverGate DriverGate DriverOp AmpOp AmpOp AmpDC/DC BuckDC/DC BuckDC/DC BuckSheet.748Multi-Output DC/DCMulti-Output DC/DCMulti-Output DC/DCBuckBuckBuckLDOLDOLDO LDOLDOLDOSheet.7495.0V5.0V5.0V

DC/DC Buck

Non-Isolated AC/DC Buck Converters

Multi-Output DC/DC

Buck Regulators (Integrated FETs)

Op Amp

General-purpose Op Amps

Bluetooth Low Energy Module

Bluetooth Low Energy

MCU

RA Arm Cortex-M MCUs
RX 32-Bit Performance/Efficiency MCUs

Gate Driver

Low-Side FET Drivers

Isolation Amplifier

Isolation Amplifier Analog Output Photocouplers / Optocouplers

News & Blog Posts

Blog Post
Jan 17, 2025
Transforming EV Charging with Advanced Connectivity

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