Researchers at ASU have developed a method for achieving zero-voltage transition using a low-loss and easy-to-implement auxiliary circuit formed by a low-voltage zero-current switch, diode, and an inductor that optimize conversion efficiencies for high switching frequencies. The auxiliary circuit reduces conduction losses by only conducting during required transition periods, and further mitigates overall losses by balancing non-equal currents, giving more flexibility in transistor design over a wider range of operating voltages. This can be applied for any power electronic converter including applications in DC-DC, DC-AC, and AC-DC power conversion. The circuit’s zero-current switch ensures minimal switching loss throughout the system, reaping the full benefits of higher switching frequencies without penalty.
- Automotive Amplifiers
- DC-DC Power Converters
- DC-AC Power Inverters
- Integrated Circuits
- Power Supply for
- Circuit Boards
- Medical Devices
- Voltage Regulators
Benefits and Advantages
- Efficient – Minimizes switching loss without sacrificing benefits from higher switching frequencies.
- Effective – Higher power densities, improved transient performance, and less EMI all result in less energy waste.
- Flexible – Design accommodates wider range of operating voltages.
- Versatile – Can be used in DC-DC, DC-AC, and AC-DC power conversion.
For more information about the inventor(s) and their research, please see