Slide 1: CarXield: The First EMI Filter to Set Standards
CarXield The First EMI Filter to Set Standards TDK Electronics AG Magnetics Business Group Munich, Germany July 2025
Slide 2: Why an EMI Filter in xEV?
Why an EMI Filter in xEV? High-frequency switching noise from inverters is a potential source of RF emissions Inverter noise on battery lines is also a major concern both for immunity and emissions ● Inverter is producing electromagnetic interferences ● EMI filter shall reduce the interferences betw
Slide 3: Innovative Standard Solution: CarXield
Innovative Standard Solution: CarXield HV DC EMI filter for automotive drive inverters ● 1000 and 500 V DC Flexible Design: with 200 to 400 A at +85 °C - With or without ● Product validation according to automotive requirements busbar (based on MBN LV 124 / AEC-Q200) - L-shaped ● Advantages - With b
Slide 4: Technical Characteristics (1)
Technical Characteristics (1) Performance In compliance with CISPR 25 HV class 4 in a 50 Ω system ● Insertion loss 30 dB @ 150 kHz common mode (CM), 40 dB @ 500 kHz differential mode (DM) … ● Example HV and conducted emission © TDK Electronics AG 2025 CarXield The First EMI Filter to Set Standar
Slide 5: Technical Characteristics (2)
Technical Characteristics (2) Energy potential and capacitor to GND Busbar packages ● Possibility to provide EMI filter without busbars At 500 V At 1000 V Energy potential* E (L-GND) [J] ≤ 0.05 ≤ 0.042 Y capacitance CY (L-GND) [nF] ≤ 360 ≤ 90 per line to GND Variant with busbars or Variant without b
Slide 6: CarXield as Standard EMI Filter
CarXield as Standard EMI Filter Customer advantages Cost saving Reduced development time for the customer Product validation concluded No custom-specific production line investment Reliability Basic product design already running in production Production process approved Flexibility Available with o
Slide 7: Possible Integration of the CarXield Filter
Possible Integration of the CarXield Filter Example: Inverter mounted on e-motor Advantages of CarXield ● Customer connection via cables with easy feedthrough connectors or plug ● Possibility to use customer busbar system Inverter housing CarXield Inverter electronics Motor © TDK Electronics AG 20
Slide 8: EMC Design Hints for our Customers in the Data Sheets (1)
EMC Design Hints for our Customers in the Data Sheets (1) EMC zone concept (ex. inverter application) ● Z3 Shielded EMC filter zone Inverter ● Z2 The zone Z2 (e.g., DC link capacitor) must incorporate at least a minimum EMC filter capacitor value of Cgi = 68 nF. Motor In combination with a damping r
Slide 9: EMC Design Hints for our Customers in the Data Sheets (2)
EMC Design Hints for our Customers in the Data Sheets (2) EMC zone concept (ex. inverter application) Inverter The appropriate application of the EMC filter product EMC filter Motor requests a basic EMC understanding, an appropriate earth and shielding concept and the application of an EMC zone conc
Slide 10: Further Filter Types
Further Filter Types B84252A0200A* B82452A0200Q* B84252B0400A* B84252B0250A000 L/H type 500 V DC / 200 A 1000 V DC / 250 A 1000 V DC / 250 A 1000 V DC / 400 A © TDK Electronics AG 2025 CarXield The First EMI Filter to Set Standards MAG PEMC PM 07/25 10
Slide 11: Busbar Installation
Busbar Installation © TDK Electronics AG 2025 CarXield The First EMI Filter to Set Standards MAG PEMC PM 07/25 11
Slide 12: www.tdk.com
www.tdk.com