Power electronic converters play a crucial role in energy transmission and conversion in data centers, electric vehicles, photovoltaic power generation, and energy storage. Achieving higher efficiency and power density in power modules not only directly reduces losses in the power supply process but also helps save space in power systems, reduce material consumption during the manufacturing of power modules, and lower overall costs. In current power modules, passive components usually occupy a significant amount of space. Therefore, increasing frequency to reduce the size of passive components has become a key trend to improve power density. However, higher frequency operation leads to increased drive and switching losses in circuits.
To maintain high efficiency while increasing power density through higher frequency operation, it is essential to consider low-loss resonant drive topology designs, high-efficiency resonant circuit topologies with soft switching and voltage regulation methods, and the optimization of eddy current losses in magnetic components at high frequencies.
Figure 1: Schematic diagram of the control method for the resonant RDCX topology
Figure 2: Cellularized high-efficiency resonant topology
Figure 3: Energy recovery-type resonant drive topology
Related Research:
- Cellularized high-efficiency conversion topologies based on low-voltage, low-NFoM devices
- High-efficiency RDCX topology with partial energy adjustment and control methods
- Energy recovery-type resonant drive circuit topologies and their design
- Design and optimization of high-frequency magnetic components
