| 摘要 |
PROBLEM TO BE SOLVED: To achieve a zero-voltage switching (ZVS) converter capable of reducing a switching loss of a high-frequency converter.SOLUTION: An inverter 12 accepting a DC input voltage includes first and second switches 14 and 16 similar to a rectifier 20 generating a DC output voltage. A resonant tank 18 is coupled between the inverter and the rectifier. The controller 26 is configured to independently control and adjust each phase and load cycle of four switches such that zero-voltage switching occurs for each switch as each switch makes a transition. The controller utilizes input parameters such as the DC input voltage, a target output voltage, and a target output current to determine the appropriate phase and load cycle of each of the four switches. Zero-voltage switching occurs for each of the four switches when the switch makes a transition, and a voltage across the switch is substantially zero. |
