xEV (OBC)

The on-board charger (OBC) is an essential block into the PHEV(Plug-in hybrid electric vehicles) and battery electric vehicles(BEV) to recharge high voltage battery from the AC grid. Typical battery voltage class is ~400V, but larger battery capacity and faster charging demands are driving 800V battery system for BEV application.

OBC power rating is increased from 6.6kW to 11~22kW for longer drive regulation and fast charging with higher battery capacity. Bi-directional is the key trend for the next on-board charger(OBC) application for V2L (Vehicle to Load), V2G (Vehicle to Grid), V2V (Vehicle to Vehicle), V2H (Vehicle to Home appliance).

Topology Trend

PFC : Boost PFC / Dual-Boost Bridgeless PFC → Totem-pole PFC (Bi-directional)

DC-DC : LLC resonant converter → CLLC resonant converter (Bi-directional)

ON-BAORD CHARGER(OBC) SYSTEM BLOCK
Output Power 3.6kW ~ 22kW
Input / Output Voltage 110~230VAC (1Φ or 3Φ) / 400~800VDC
Switching Freq. PFC : 50 ~ 70 kHz, DC-DC : > 100kHz
System Requirement

High System Efficiency ( > 96% )

Power limited (22kW) by cost / size

High Power Density (Small form factor)

Bi-directional Operation(V2L / V2G / V2V / V2H)

Battery voltage increasing (400V → 800V)

Device Solution

System Block Topology Product Category PMS Solution
PFC Single
Phase		 Boost CCM
/ Interleaved PFC		 600/650V SJ MOSFETs 600/650V e MOS
650V SiC Diodes 650V e SiC Diode
CCM Totem-pole PFC 650V SiC MOSFETs 650V e SiC MOSFET
Three
Phase		 Vienna Rectifier 600/650V SJ MOSFETs 600/650V e MOS
1200V SiC Diodes 1200V e SiC Diode
3-phase Full Bridge 1200V SiC MOSFETs 1200V e SiC MOSFET
HV DC-DC
(Primary)		 Stacked CLLC
Single stage FB CLLC
 600/650V SJ MOSFETs (400V Batt.) 600/650V e MOS
650V SiC MOSFETs (400V Batt.)
1200V SiC MOSFETs (800V Batt.)		 650V e SiC MOSFET
1200V e SiC MOSFET
HV DC-DC
(Secondary)		 Synchronous
Rectification		 650V SiC MOSFETs (400V Batt.)
1200V SiC MOSFETs (800V Batt.)		 650V e SiC MOSFET
1200V e SiC MOSFET
DEVICE SOLUTION FOR OBC ( Single Phase / 400V Battery )
Bi-Directional
Totem-Pole PFC - Recommended Products
e SiC MOSFET
(FAST Leg)		 *PCZ65N18M1-A
*PCZ65N27M1-A
*PCZ65N48M1-A
*PCBF65N18M1-A
*PCBF65N27M1-A
*PCBF65N48M1-A 		650V / 18mΩ, TO-247-4L
650V / 27mΩ, TO-247-4L
650V / 48mΩ, TO-247-4L
650V / 18mΩ, D2PAK-7L
650V / 27mΩ, D2PAK-7L
650V / 48mΩ, D2PAK-7L
e MOS E7/F7
(Slow Leg)		 *PMW60N028E7-A
*PMW60N040E7-A
*PMW60N070E7-A
*PMW60N030F7-A
*PMW60N043F7-A
*PMW65N043F7-A
*PMW60N075F7-A 		600V / 28mΩ, TO-247
600V / 40mΩ, TO-247
600V / 70mΩ, TO-247
600V / 30mΩ, TO-247
600V / 43mΩ, TO-247
650V / 43mΩ, TO-247
600V / 75mΩ, TO-247
CLLC (Primary) - Recommended Products
e SiC MOSFET *PCZ65N18M1-A
*PCZ65N27M1-A
*PCZ65N48M1-A
*PCBF65N18M1-A
*PCBF65N27M1-A
*PCBF65N48M1-A 		650V / 18mΩ, TO-247-4L
650V / 27mΩ, TO-247-4L
650V / 48mΩ, TO-247-4L
650V / 18mΩ, D2PAK-7L
650V / 27mΩ, D2PAK-7L
650V / 48mΩ, D2PAK-7L
e MOSF7 *PMW60N030F7-A
*PMW60N043F7-A
*PMW65N043F7-A
*PMW60N075F7-A 		600V / 30mΩ, TO-247
600V / 43mΩ, TO-247
650V / 43mΩ, TO-247
600V / 75mΩ, TO-247
CLLC (Secondary) - Recommended Products
e SiC MOSFET *PCZ65N18M1-A
*PCZ65N27M1-A
*PCZ65N48M1-A
*PCBF65N18M1-A
*PCBF65N27M1-A
*PCBF65N48M1-A 		650V / 18mΩ, TO-247-4L
650V / 27mΩ, TO-247-4L
650V / 48mΩ, TO-247-4L
650V / 18mΩ, D2PAK-7L
650V / 27mΩ, D2PAK-7L
650V / 48mΩ, D2PAK-7L
* Comming soon
DEVICE SOLUTION FOR OBC ( 3 Phase / 800V Battery )
Uni-Directional
Vienna Rectifier - Recommended Products
e MOS E7 *PMW60N028E7-A
*PMW60N040E7-A
*PMW60N030F7-A
*PMW65N043F7-A 		600V / 28mΩ, TO-247
600V / 40mΩ, TO-247
650V / 30mΩ, TO-247
650V / 43mΩ, TO-247
e SiC Diode *PCA120S15D1-A
*PCA120S20D1-A
*PCA120S30D1-A
*PCA120S40D1-A 		1200V / 15A, TO-247-2L
1200V / 20A, TO-247-2L
1200V / 30A, TO-247-2L
1200V / 40A, TO-247-2L
CLLC (Primary) - Recommended Products
e SiC MOSFET *PCZ65N18M1-A
*PCZ65N27M1-A
*PCZ65N48M1-A
*PCBF65N18M1-A
*PCBF65N27M1-A
*PCBF65N48M1-A
 650V / 18mΩ, TO-247-4L
650V / 27mΩ, TO-247-4L
650V / 48mΩ, TO-247-4L
650V / 18mΩ, D2PAK-7L
650V / 27mΩ, D2PAK-7L
650V / 48mΩ, D2PAK-7L
e MOSF7 *PMW60N030F7-A
*PMW60N043F7-A
*PMW65N043F7-A
*PMW60N075F7-A
 600V / 30mΩ, TO-247
600V / 43mΩ, TO-247
650V / 43mΩ, TO-247
600V / 75mΩ, TO-247
CLLC (Secondary) - Recommended Products
e SiC MOSFET *PCZ65N18M1-A
*PCZ65N27M1-A
*PCZ65N48M1-A
*PCBF65N18M1-A
*PCBF65N27M1-A
*PCBF65N48M1-A
 6650V / 18mΩ, TO-247-4L
650V / 27mΩ, TO-247-4L
650V / 48mΩ, TO-247-4L
650V / 18mΩ, D2PAK-7L
650V / 27mΩ, D2PAK-7L
650V / 48mΩ, D2PAK-7L
e MOSF7 *PMW60N030F7-A
*PMW60N043F7-A
*PMW65N043F7-A
*PMW60N075F7-A
 600V / 30mΩ, TO-247
600V / 43mΩ, TO-247
650V / 43mΩ, TO-247
600V / 75mΩ, TO-247
* Comming soon
DEVICE SOLUTION FOR OBC ( 3 Phase / 800V Battery )
Bi-Directional
Three-phase FB (B6) Rectifier - Recommended Products
e SiC MOSFET *PCZ120N21M1-A
*PCZ120N30M1-A
*PCZ120N40M1-A
*PCZ120N60M1-A
*PCZ120N80M1-A
*PCBF120N21M1-A
*PCBF120N30M1-A
*PCBF120N40M1-A
*PCBF120N60M1-A
*PCBF120N80M1-A
 1200V / 21mΩ, TO-247-4L
1200V / 30mΩ, TO-247-4L
1200V / 40mΩ, TO-247-4L
1200V / 60mΩ, TO-247-4L
1200V / 80mΩ, TO-247-4L
1200V / 21mΩ, D2PAK-7L
1200V / 30mΩ, D2PAK-7L
1200V / 40mΩ, D2PAK-7L
1200V / 60mΩ, D2PAK-7L
1200V / 80mΩ, D2PAK-7L
CLLC (Primary) - Recommended Products
e SiC MOSFET *PCZ120N21M1-A
*PCZ120N30M1-A
*PCZ120N40M1-A
*PCZ120N60M1-A
*PCZ120N80M1-A
*PCBF120N21M1-A
*PCBF120N30M1-A
*PCBF120N40M1-A
*PCBF120N60M1-A
*PCBF120N80M1-A
 1200V / 21mΩ, TO-247-4L
1200V / 30mΩ, TO-247-4L
1200V / 40mΩ, TO-247-4L
1200V / 60mΩ, TO-247-4L
1200V / 80mΩ, TO-247-4L
1200V / 21mΩ, D2PAK-7L
1200V / 30mΩ, D2PAK-7L
1200V / 40mΩ, D2PAK-7L
1200V / 60mΩ, D2PAK-7L
1200V / 80mΩ, D2PAK-7L
CLLC (Secondary) - Recommended Products
e SiC MOSFET *PCZ120N21M1-A
*PCZ120N30M1-A
*PCZ120N40M1-A
*PCZ120N60M1-A
*PCZ120N80M1-A
*PCBF120N21M1-A
*PCBF120N30M1-A
*PCBF120N40M1-A
*PCBF120N60M1-A
*PCBF120N80M1-A
 1200V / 21mΩ, TO-247-4L
1200V / 30mΩ, TO-247-4L
1200V / 40mΩ, TO-247-4L
1200V / 60mΩ, TO-247-4L
1200V / 80mΩ, TO-247-4L
1200V / 21mΩ, D2PAK-7L
1200V / 30mΩ, D2PAK-7L
1200V / 40mΩ, D2PAK-7L
1200V / 60mΩ, D2PAK-7L
1200V / 80mΩ, D2PAK-7L
* Comming soon