EMI Reduction in an Interleaved Buck Converter Through Spread Spectrum Frequency Modulation

Spread spectrum frequency modulation is applied in a high-frequency DC/DC power converter to reduce conducted EMI. A new modulation biasing technique is developed to further reduce EMI levels in converters equipped with hardware filters. In the lab, this biasing shows effective shaping of the EMI spectrum

Scalable multi-port converter for solar electric vehicles

This invention pertains to a three-port isolated active bridge DC-DC power converter comprising a control unit, a first primary-side port, a second primary-side port, two primary-side switching elements, a blocking switch, a secondary-side port and two secondary-side switching elements. The control unit is configured to open and to close the blocking switch, for preventing and allowing power flow between a primary side and a secondary side of the power converter. The control unit is configured to control the two primary-side switching elements and the two secondary-side switching elements for converting power between the primary-side ports and the secondary-side port. This invention further pertains to a three-port isolated active bridge DC-DC power converter system, a multi-port isolated active bridge DC-DC power converter, a multi-port isolated active bridge DC-DC power converter system, a solar power assembly, and a vehicle.This invention pertains to a three-port isolated active bridge DC-DC power converter comprising a control unit, a first primary-side port, a second primary-side port, two primary-side switching elements, a blocking switch, a secondary-side port and two secondary-side switching elements. The control unit is configured to open and to close the blocking switch, for preventing and allowing power flow between a primary side and a secondary side of the power converter. The control unit is configured to control the two primary-side switching elements and the two secondary-side switching elements for converting power between the primary-side ports and the secondary-side port. This invention further pertains to a three-port isolated active bridge DC-DC power converter system, a multi-port isolated active bridge DC-DC power converter, a multi-port isolated active bridge DC-DC power converter system, a solar power assembly, and a vehicle

Scalable multi-port converter for solar electric vehicles

This invention pertains to a three-port isolated active bridge DC-DC power converter comprising a control unit, a first primary-side port, a second primary-side port, two primary-side switching elements, a blocking switch, a secondary-side port and two secondary-side switching elements. The control unit is configured to open and to close the blocking switch, for preventing and allowing power flow between a primary side and a secondary side of the power converter. The control unit is configured to control the two primary-side switching elements and the two secondary-side switching elements for converting power between the primary-side ports and the secondary-side port. This invention further pertains to a three-port isolated active bridge DC-DC power converter system, a multi-port isolated active bridge DC-DC power converter, a multi-port isolated active bridge DC-DC power converter system, a solar power assembly, and a vehicle.This invention pertains to a three-port isolated active bridge DC-DC power converter comprising a control unit, a first primary-side port, a second primary-side port, two primary-side switching elements, a blocking switch, a secondary-side port and two secondary-side switching elements. The control unit is configured to open and to close the blocking switch, for preventing and allowing power flow between a primary side and a secondary side of the power converter. The control unit is configured to control the two primary-side switching elements and the two secondary-side switching elements for converting power between the primary-side ports and the secondary-side port. This invention further pertains to a three-port isolated active bridge DC-DC power converter system, a multi-port isolated active bridge DC-DC power converter, a multi-port isolated active bridge DC-DC power converter system, a solar power assembly, and a vehicle