Please note this was evaluated on an EMI station for pre-qualification purpose only. TI recommends that all final designs be verified by an agency-qualified EMI test house. Figure 3-54 shows scan with existing EVM components. However, Figure 3-53 shows scan taken with the an additional DM choke of 22uH placed before L5 in the schematic. Final EMI analysis will be available in the final release of this EVM.
Please note this was evaluated on an EMI station for pre-qualification purpose only. TI recommends that all final designs be verified by an agency-qualified EMI test house. Figure 3-54 shows scan with existing EVM components. However, Figure 3-53 shows scan taken with the an additional DM choke of 22uH placed before L5 in the schematic. Final EMI analysis will be available in the final release of this EVM.Figure 3-53 VIN = 230VRMS, VOUT = 20V, Load = 3.25A (Output Not Grounded to LISN Ground) - With DM choke modification. Please note this was evaluated on an EMI station for pre-qualification purpose only. TI recommends that all final designs be verified by an agency-qualified EMI test house. Figure 3-54 shows scan with existing EVM components. However, Figure 3-53 shows scan taken with the an additional DM choke of 22uH placed before L5 in the schematic. Final EMI analysis will be available in the final release of this EVM.
Figure 3-54 VIN = 230VRMS, VOUT = 20V, Load = 3.25A (Output Not Grounded to LISN Ground) - Orginal EVM