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車載充電器 (OBC)

On-Board IconThe OBC function can either be a standalone module or integrated with the main HV DC-DC. Its function is to take AC power provided via the vehicle charging port and recharge the vehicle battery.

Regional differences on availability of 3 phase AC power splits OBCs into supporting single phase or single and 3 phase input. Power levels are typically 3.6 kW to 11 kW though some vehicle can offer up to 22 kW. Higher AC power levels exist for commercial vehicles but typically due to cost and size charging moves to DC fast based charging at up to 350 kW. The power electronics in off-board charging are external and directly connect to the vehicle battery during charging.

OBCs are likely to become more sophisticated and add value to EV ownership by providing the ability to be grid tied, that is provide energy from the vehicle battery back into the AC supply. This opens many opportunities such as backup power for a home, during camping, peak load management or grid level demand response.

Power Integrations offers low component count, isolated and non-isolated integrated flyback and buck controller ICs ideal for the internal housekeeping supplies within an OBC. These can be both on the AC side (to operate the converter stages) or that HVDC battery side (loss of 12 V recovery supply). With the move to 800 V vehicle architectures these solutions can operate at input voltages above 1000 V. For rectification within the OBC Qspeed diodes offer an attractive alternative to silicon carbide with a soft, very low loss recovery giving higher efficiency and lower EMI.

參考設計

Additional Documents
設計
產品
DER-952Q - 86 W Power Supply for 800 V Bus Using InnoSwitch3-AQ (1700 V SiC Switch)
Product InnoSwitch3-AQ
DER-1035Q - 70 W Power Supply Replacing 12 V Battery in 400 V BEV Systems Using InnoSwitch3-AQ (1700 V SiC Switch)
Product InnoSwitch3-AQ
DER-953Q - 100 W Power Supply Replacing 12 V Battery in 400 V BEV System Using InnoSwitch3-AQ (900 V PowiGaN Switch)
Product InnoSwitch3-AQ
DER-965Q - 10 W Non-Isolated Buck Power Supply for 400 V BEV Systems using Automotive-Qualified LinkSwitch-TN2Q
Product LinkSwitch-TN2Q
DER-948Q - 35 W Power Supply for 800 V Bus with 30-1000 VDC Input and 15 V Output Using InnoSwitch3-AQ (1700 V SiC Switch)
Product InnoSwitch3-AQ
RDR-707Q - 9.75 W Non-Isolated Buck Power Supply using Automotive-Qualified LinkSwitch-TN2Q
Product LinkSwitch-TN2Q
DER-913Q - 35 W Power Supply for 800 V Bus with 40-1000 VDC Input Using InnoSwitch3-AQ (1700 V SiC Switch)
Product InnoSwitch3-AQ
RDR-919Q - 60 W Power Supply for 800 V Bus with 50-1000 VDC Input Using InnoSwitch3-AQ (1700 V SiC Switch)
Product InnoSwitch3-AQ
DER-719Q - 2.7 W StackFET Buck Power Supply using Automotive-Qualified LinkSwitch-TN2Q
Product LinkSwitch-TN2Q
DER-907Q - 20 W Power Supply for 400 V Bus with Planar Transformer Using InnoSwitch3-AQ
Product InnoSwitch3-AQ
RDR-840Q - 30 W Power Supply for 400 V Bus with 30-550 VDC Input Using InnoSwitch3-AQ
Product InnoSwitch3-AQ
DER-844Q - 4.5 W Non-Isolated Buck Power Supply using Automotive-Qualified LinkSwitch-TN2Q
Product LinkSwitch-TN2Q

相關產品

Related Products
產品
產品規格型錄
拓撲結構
電壓等級
說明
Topology Flyback, Secondary Side - FluxLink Regulated
Power Level 100 W
Description

內含整合式 750 V、900 V及1700 V開關和 FluxLink 回授的 CV/CC QR 返馳式切換開關 IC,適用於汽車應用

Topology Non-Isolated Flyback, Buck/Boost/Buck-Boost
Power Level 850 mA
Description

可供汽車使用的高度節能型切換開關 IC,具備低元件數電源供應器的整合式系統級保護

Topology Any
Power Level
Description

符合AEC-Q101標準的汽車音響應用共陰極二極體

  • VRRM     - 200 V - 600 V
  • IF(AVG)   - 10 A - 20 A
  • QRR       - 9.2 nC - 48.4 nC

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