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Level 2 EV Charger

Overview

Electric vehicle supply equipment (EVSE) refers to the infrastructure that supplies electric energy for recharging electric vehicles (EVs), including plug-in hybrid electric vehicles (PHEVs). Modern EVSE systems provide essential hardware and integrate software to manage power delivery, monitor usage, and handle billing for commercial charging stations.

This EV charger modular design with a controller board supports various connectivity options stacked on top of a power board. It offers built-in connectivity options such as Wi-Fi, Bluetooth® Low Energy (LE), and NFC, with the flexibility to add interfaces like Ethernet, ensuring seamless integration and adaptability for diverse applications.

System Benefits:

  • Supports flexible configurations for 1-phase to 3-phase charging systems for power up to 22kW.
  • MCU supports dual-flash bank operation, allowing safe over-the-air (OTA) updates and fallback.
  • High voltage AC/DC eliminates the need for optocouplers, simplifying the system architecture.

Block Diagram

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WebConnector Arrow.1835Dynamic connector.1376Dynamic connector.1396Dynamic connector.1397PhotocouplerPhotocouplerPhotocouplerDynamic connector.1407Sheet.1634Resistor.1422Sheet.1637Sheet.1638Resistor.1425Sheet.1640Sheet.1641Dynamic connector.1428Dynamic connector.1429Dynamic connector.1430Dynamic connector.1431Sheet.1646Resistor.1442Sheet.1657Sheet.1658Dynamic connector.1445Dynamic connector.1446Dynamic connector.1447Dynamic connector.1448Sheet.1672Resistor.1459Sheet.1674Sheet.1675Resistor.1462Sheet.1677Sheet.1678Dynamic connector.1465Dynamic connector.1466Dynamic connector.1467Dynamic connector.1474Resistor.1475Sheet.1690Sheet.1691Dynamic connector.1478Dynamic connector.1479Dynamic connector.1480Dynamic connector.1487Dynamic connector.1489Sheet.1704Sheet.1705Sheet.1706Sheet.1707Sheet.1708Sheet.1709Sheet.1710Dynamic connector.1497Dynamic connector.1498Earth Leakage CTEarth Leakage CTEarth Leakage CTCT x3, Voltage Divider x3 & FiltersCT x3, Voltage Divider x3 & FiltersCT x3, Voltage Divider x3 & FiltersDynamic connector.1504Dynamic connector.1505Dynamic connector.1506Dynamic connector.1507Dynamic connector.15084 Pole Relay4 Pole Relay4 Pole RelayDynamic connector.1510Dynamic connector.1512 FlashFlashFlashDynamic connector.1516Dynamic connector.1519 3.3V/100mA3.3V/100mA3.3V/100mAISO 12VISO 12VISO 12VSheet.1738Dynamic connector.1539MOSFETMOSFETMOSFETCapacitor Polaized.1541Sheet.1751Sheet.1752Sheet.1753Sheet.1754Dynamic connector.1546Dynamic connector.1547Dynamic connector.1548Rectifier ControllerRectifier ControllerRectifier ControllerDynamic connector.1550LDOLDOLDOLDOLDOLDODynamic connector.1553Ground - Earth.1554Sheet.1764Sheet.1765Sheet.1766Sheet.1767ISO 3.3V/150mAISO 3.3V/150mAISO 3.3V/150mAISO 5V/100mAISO 5V/100mAISO 5V/100mABluetooth Low EnergyBluetooth Low EnergyBluetooth Low EnergyWi-FiWi-FiWi-FiDynamic connector.1576 3.3V3.3V3.3VNFC ReaderNFC ReaderNFC ReaderDynamic connector.1579Dynamic connector.1580Dynamic connector.1581Dynamic connector.1582Dynamic connector.1583FlashFlashFlashDynamic connector.1588CP CircuitCP CircuitCP CircuitDynamic connector.1591Make contact.1594Sheet.1802Sheet.1803Sheet.1804Sheet.1805Sheet.1806Make contact.1600Sheet.1808Sheet.1809Sheet.1810Sheet.1811Sheet.1812Make contact.1606Sheet.1814Sheet.1815Sheet.1816Sheet.1817Sheet.1818Sheet.1819Sheet.1820Sheet.1821Dynamic connector.1615Dynamic connector.1616Photodiode.1617Sheet.1825Sheet.1826Sheet.1827Dynamic connector.1621Dynamic connector.1622LCDLCDLCDEthernet PHYEthernet PHYEthernet PHYDynamic connector.1638Dynamic connector.1639GSM 4GGSM 4GGSM 4GDynamic connector.1647Dynamic connector.1661Dynamic connector.1662Dynamic connector.1663 LDOLDOLDO MOSFETMOSFETMOSFET MOSFETMOSFETMOSFETGreenPAKGreenPAKGreenPAKDynamic connector.1668Dynamic connector.1669Dynamic connector.1670 ISO 12VISO 12VISO 12VSheet.1879Sheet.1885Sheet.1886Dynamic connector.1680EM VCC 12VEM VCC 12VEM VCC 12VDynamic connector.1682Dynamic connector.1683 LDOLDOLDODynamic connector.1685Dynamic connector.1686Ground - Earth.1687Sheet.1895Sheet.1896Sheet.1897Sheet.1898Dynamic connector.1692Dynamic connector.1693VCC 3.3V/100mAVCC 3.3V/100mAVCC 3.3V/100mA VCC 5V/100mAVCC 5V/100mAVCC 5V/100mASheet.1903Dynamic connector.1706Dynamic connector.1719Dynamic connector.1720Dynamic connector.1721 MOSFETMOSFETMOSFET MOSFETMOSFETMOSFETGreenPAKGreenPAKGreenPAKDynamic connector.1725Dynamic connector.1726Dynamic connector.1727 ISO 12VISO 12VISO 12VSheet.1936Sheet.1942Sheet.1943Dynamic connector.1737 ISO -12V/50mAISO -12V/50mAISO -12V/50mAGround - Earth.1740Sheet.1948Sheet.1949Sheet.1950Sheet.1951Dynamic connector.1745Dynamic connector.1746B2B Energy Metering ConnectorB2B Energy Metering ConnectorB2B Energy Metering ConnectorSheet.1955Sheet.1956Sheet.1957Sheet.1958Sheet.1959Op AmpOp AmpOp AmpDynamic connector.1755 Vehicle Management Using Control PilotVehicle Management Using Control PilotVehicle Management Using Control PilotDynamic connector.1757Dynamic connector.1758Dynamic connector.1759Dynamic connector.1760Dynamic connector.1761 ISO -12V/100mAISO -12V/100mAISO -12V/100mAEM VCC 12V/100mAEM VCC 12V/100mAEM VCC 12V/100mAHumidity & Temperature SensorHumidity & Temperature SensorHumidity & Temperature SensorB2B Vehicle Management ConnectorB2B Vehicle Management ConnectorB2B Vehicle Management ConnectorDynamic connector.1768DC/DC BuckDC/DC BuckDC/DC BuckDC/DC BuckDC/DC BuckDC/DC BuckDynamic connector.1772Dynamic connector.1773 ISO 5VISO 5VISO 5V ISO 5VISO 5VISO 5V VCC 3.3VVCC 3.3VVCC 3.3VDynamic connector.1781Dynamic connector.1782 VCC 3.3VVCC 3.3VVCC 3.3VDynamic connector.1789GSM 4.2VGSM 4.2VGSM 4.2VDynamic connector.1795Dynamic connector.1796Dynamic connector.1797Vehicle Management Using Control PilotVehicle Management Using Control PilotVehicle Management Using Control PilotCANCANCANDynamic connector.18002Label Text 10pt.104622Sheet.2000Horizontal Wire Bundle.1804Communication Lines B.795 444Vertical Wire Bundle.1807 222Sheet.2006 2Label Text 10pt.104622Sheet.2009Vertical Wire Bundle.1813 222Sheet.2012Vertical Wire Bundle.1816 222Sheet.2015Connector Arrow.1822 4.2V4.2V4.2VISO 12VISO 12VISO 12VISO 12VISO 12VISO 12V1-,2-,3-Phase1-,2-,3-Phase1-,2-,3-Phase 1-,2-,3-Phase1-,2-,3-Phase1-,2-,3-PhaseSheet.2023Connector Arrow.1832ISO GNDISO GNDISO GNDConnector Arrow.18365V5V5VGround - Earth.1838Sheet.2031Sheet.2032Sheet.2033Sheet.2034Ground - Earth.1843Sheet.2036Sheet.2037Sheet.2038Sheet.2039ISO GNDISO GNDISO GNDGround - Earth.1849Sheet.2042Sheet.2043Sheet.2044Sheet.2045ISO GNDISO GNDISO GND DGNDDGNDDGNDGround - Earth.1861Sheet.2049Sheet.2050Sheet.2051Sheet.2052 DGNDDGNDDGND DGNDDGNDDGND ISO GNDISO GNDISO GNDGround - Earth.1869Sheet.2057Sheet.2058Sheet.2059Sheet.2060ISO GNDISO GNDISO GNDGround - Earth.1875Sheet.2063Sheet.2064Sheet.2065Sheet.2066 ISO GNDISO GNDISO GND GreenPAKGreenPAKGreenPAK LDOLDOLDOConnector Arrow.1891Connector Arrow.1892Connector Arrow.1893 3.3V3.3V3.3V LDOLDOLDOConnector Arrow.18965V5V5V5V5V5VConnector Arrow.1899LCD 3.3VLCD 3.3VLCD 3.3VConnector Arrow.1902Connector Arrow.1903 3.3V3.3V3.3VBi-directional.1908Vertical Wire Bundle.1909Label Text 10pt.104622Sheet.2088Connector Arrow.1912Vertical Wire Bundle.1913 222Sheet.2092From Current SensorFrom Current SensorFrom Current SensorConnector Arrow.1917Vertical Wire Bundle.1918666Sheet.2097 VCC 3.3VVCC 3.3VVCC 3.3V ISO 12VISO 12VISO 12VConnector Arrow.1881Ground - Earth.1882Sheet.2102Sheet.2103Sheet.2104Sheet.2105 ISO GNDISO GNDISO GNDConnector Arrow.1888Vertical Wire Bundle.1931 333Sheet.21104Communication Lines B.7954442Communication Lines B.795222Vertical Wire Bundle.1998Label Text 10pt.104633Sheet.2119From Op AmpFrom Op AmpFrom Op AmpVertical Wire Bundle.2803333Sheet.2123AGNDAGNDAGNDAGNDAGNDAGNDGround - Earth.2810Sheet.2127Sheet.2128Sheet.2129Sheet.2130Connector Arrow.2815 AGNDAGNDAGNDGround - Earth.2817Sheet.2134Sheet.2135Sheet.2136Sheet.2137 ISO GNDISO GNDISO GNDConnector Arrow.2823Ground - Earth.2824Sheet.2141Sheet.2142Sheet.2143Sheet.2144 DGNDDGNDDGNDConnector Arrow.2830Vertical Wire Bundle.2831Label Text 10pt.104622Sheet.2149Connector Arrow.2150Diode.2153Sheet.2154Sheet.2155Sheet.2156Diode.2157Sheet.2158Sheet.2159Sheet.2160Diode.2161Sheet.2162Sheet.2163Sheet.2164Diode.2165Sheet.2166Sheet.2167Sheet.2168Connector Line.2169Connector Line.2170Connector Line.2171Diode.2172Sheet.2173Sheet.2174Sheet.2175Diode.2176Sheet.2177Sheet.2178Sheet.2179Diode.2180Sheet.2181Sheet.2182Sheet.2183Diode.2184Sheet.2185Sheet.2186Sheet.2187Connector Line.2188Connector Line.2189Connector Line.2190Connector Line.2191Connector Line.2192Connector Line.2193Connector Line.2194Capacitor Non-polarized .2195Sheet.2196Sheet.2197Sheet.2198Sheet.2199Connector Line.2200Connector Line.2201Transformer Inductor Coreless (Air conductor).2202Sheet.2203Sheet.2204Sheet.2205Sheet.2206Sheet.2207Sheet.2208Sheet.2209Sheet.2210Sheet.2211Transformer Inductor Coreless (Air conductor).2212Sheet.2213Sheet.2214Sheet.2215Sheet.2216Sheet.2217Sheet.2218Sheet.2219Sheet.2220Sheet.2221Transformer Inductor Coreless (Air conductor).2222Sheet.2223Sheet.2224Sheet.2225Sheet.2226Sheet.2227Sheet.2228Sheet.2229Sheet.2230Sheet.2231Ground - Earth.2232Sheet.2233Sheet.2234Sheet.2235Sheet.2236Diode -Schottky.2241Sheet.2242Sheet.2243Sheet.2244Sheet.2245Sheet.2246Sheet.2247Sheet.2248Transformer.2249Line.841Inductor Air Core.509Sheet.2252Sheet.2253Sheet.2254Sheet.2255Sheet.2256Sheet.2257Sheet.2258Sheet.2259Sheet.2260Line.29Inductor Air Core.212Sheet.2263Sheet.2264Sheet.2265Sheet.2266Sheet.2267Sheet.2268Sheet.2269Sheet.2270Sheet.2271Transformer.2272Line.841Inductor Air Core.509Sheet.2275Sheet.2276Sheet.2277Sheet.2278Sheet.2279Sheet.2280Sheet.2281Sheet.2282Sheet.2283Line.29Inductor Air Core.212Sheet.2286Sheet.2287Sheet.2288Sheet.2289Sheet.2290Sheet.2291Sheet.2292Sheet.2293Sheet.2294Ground - Earth.2295Sheet.2296Sheet.2297Sheet.2298Sheet.2299Connector Line.2300Diode -Schottky.2301Sheet.2302Sheet.2303Sheet.2304Sheet.2305Sheet.2306Sheet.2307Sheet.2308Diode -Schottky.2309Sheet.2310Sheet.2311Sheet.2312Sheet.2313Sheet.2314Sheet.2315Sheet.2316Diode -Schottky.2317Sheet.2318Sheet.2319Sheet.2320Sheet.2321Sheet.2322Sheet.2323Sheet.2324Diode -Schottky.2325Sheet.2326Sheet.2327Sheet.2328Sheet.2329Sheet.2330Sheet.2331Sheet.2332Vertical Wire Bundle.2333Label Text 10pt.104622Sheet.2335Vertical Wire Bundle.2336Label Text 10pt.104644Sheet.2338Metering SectionMetering SectionMetering SectionAntenna.2342Sheet.2343Sheet.2344Sheet.2345Sheet.2346Sheet.2347Connector Line.2348Sheet.2356Antenna.2349Sheet.2350Sheet.2351Sheet.2352Sheet.2353Sheet.2354Connector Line.2355Sheet.2357Antenna.2349Sheet.2359Sheet.2360Sheet.2361Sheet.2362Sheet.2363Connector Line.2355WS026WS026WS026Connector Arrow.2368Connector Arrow.2369Connector Arrow.2370 ISO 12VISO 12VISO 12V ISO -12VISO -12VISO -12VUtility MeterUtility MeterUtility MeterCharge GunSheet.2376Sheet.2377Connector Arrow.2381Touch KeySheet.2383Sheet.2384Sheet.2385Sheet.2386Sheet.2387Sheet.2388Sheet.2389Sheet.2390Sheet.2391Connector Arrow.2392Connector ArrowBoard - OptionalBi-directionalConnector Arrow.2401AC Power Source.1000Sheet.2403Alternating CurrentAC Power Source.1000.2405Sheet.2406Alternating CurrentDynamic connector.2410Sheet.2411FlybackFlybackFlybackVCCVCCVCCVSENSEVSENSEVSENSEISENSEISENSEISENSEFFFCCCCCCGNDGNDGNDSheet.2412MCUMCUMCU UARTUARTUART Trust ZoneTrust ZoneTrust ZoneRMIRMIRMI CAN 2.0CAN 2.0CAN 2.0SD/eMMCSD/eMMCSD/eMMC UARTUARTUARTUARTUARTUART UARTUARTUART PWMPWMPWMQSPIQSPIQSPIPWMPWMPWMGPIOsGPIOsGPIOsSPISPISPI IRQIRQIRQCAP Touch ProximityCAP Touch ProximityCAP TouchProximity VDDVDDVDD UARTUARTUART ADCADCADC USBUSBUSBADCADCADCSheet.2414 MCUMCUMCU VDDVDDVDDUARTUARTUARTGPIO IRQGPIO IRQGPIOIRQ GPIO IRQGPIO IRQGPIOIRQ SPISPISPI I2CI2CI2C UARTUARTUART ADCADCADCConnector LineHMI SectionHMI SectionHMI Section

Flyback

Flyback & Forward Controllers

MCU

RA Arm Cortex-M MCUs

MCU

RA Arm Cortex-M MCUs

Rectifier Controller

Synchronous Rectifier Controllers

LDO

Linear Regulators (LDO)

LDO

Linear Regulators (LDO)

LDO

Linear Regulators (LDO)

LDO

Linear Regulators (LDO)

LDO

Linear Regulators (LDO)

LDO

Linear Regulators (LDO)

DC/DC Buck

Buck Regulators (Integrated FETs)

DC/DC Buck

Buck Regulators (Integrated FETs)

Bluetooth Low Energy

Bluetooth Low Energy

Wi-Fi

Wi-Fi MCUs

NFC Reader

NFC

Op Amp

Precision Op Amps (Vos <1mV)

GreenPAK

Other GreenPAKs

GreenPAK

Other GreenPAKs

GreenPAK

GreenPAK with Asynchronous State Machine

Photocoupler

Photocouplers/Optocouplers Transistor Output

Flash

SPI NOR Flash

Flash

SPI NOR Flash

Videos & Training

Renesas understands that ensuring chargers must work reliably across various site conditions and connectivity types can often lead to integration headaches. That's exactly why we've put together this demonstration video, showcasing our customized open-source SteVe software stack, designed to support a modular set of communication protocols. This approach guarantees that you can test your Open Charge Point Protocol (OCPP) connectivity in a wide range of environments, including those challenging rural areas with limited infrastructure, to get you to market more quickly. 

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