Murata EMI Filter Selection Simulator

www.murata.com/products/design_support/mefss/index.html

Function

• This can be done easily by using the mouse on your Windows interface.
• The results of simulation are shown in the charts of "Voltage-waveform" and "Voltage-Spectrum".
• Any simulating conditions are available by selecting filters, setting input/output signals, Driver/Receiver IC and Transmission Line.
• Filters can be selected with "Impedance-Frequency" or "IL-Frequency" charts.
• Provide a simulation function that select best suited filter.

Image: Menu Window

This window is displayed when the software starts up or when selecting "File" on the menu bar and choosing "New Simulation".

Image: Start Window

About simulation circuits

• Circuit Using EMI Filter OR Chip Capacitor for EMI Suppression
  ...The circuit using an EMI Filter or a chip capacitor can be simulated. (Simulation function is included.)
• Circuit Using Chip Ferrite Bead AND Chip Capacitor for EMI Suppression
  ...The L type circuit using chip ferrite bead AND chip capacitor can be simulated.
• Circuit Using Chip Ferrite Bead AND Three-terminal Capacitor for EMI Suppression
  ...The L type circuit using chip ferrite bead AND three-terminal capacitor can be simulated.
• Differential Mode Transmission Circuit
  ...The USB,LVDS and IEEE 1394 circuits using chip common mode choke coil can be simulated.

About simulation function

• The software will recommend the most appropriate filter solution based on specified search condition.

Image: Search Setup

The recommended Part will be displayed along with electrical characteristics, the voltage waveform and spectrum chart.

Image: Search Result