Bi-directional DC-DC power converters with high-voltage DC-DC gain
This technology proposes a novel circuit topology to achieve significantly improved performance when integrated into an EV’s bi-directional DC-DC converter technology or any other application. The design allows for high voltage gain (Step up or Boost) when the converter is supplying energy, i.e., input source (lower DC voltage) to the output (higher DC voltage) load. It is also capable of a high voltage reduction ratio (Stepdown or Buck) when energy is flowing from the higher voltage side source to the lower voltage side load. Seamless transfer from boost to buck mode and vice versa is possible, and this feature is useful for bi-directional power flow such as regenerative breaking. It enables a number of benefits that allow electric vehicles to use several lower voltage batteries in parallel thus improving the reliability.
