Power supply system and method of controlling power level zero voltage switching (ZVS) control parameters

• Main Authors: HARI AJAY KARTHIK, HALL JEFFERSON W
• Format: Patent
• Language: Chinese; English
• Published: 02.10.2020
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION

The invention discloses a power supply system and a method of controlling power level zero voltage switching (ZVS) control parameters. According to an aspect, a power supply system includes a power stage including a power switch and an inductor, a power supply controller connected to the power stage, a metering circuit configured to sense measured conditions of the power stage, and a system performance controller configured to be coupled to the power supply controller and the metering circuit. The system performance controller is configured to compute energy conversion efficiency based on themeasured conditions and select a value for a zero voltage switching (ZVS) control parameter that results in the energy conversion efficiency achieving a threshold condition. The ZVS control parameterindicates a magnitude of a reverse current through the inductor to discharge a parasitic capacitance of the power switch. 本发明公开了一种电源系统和一种控制功率级的零电压开关控制参数的方法。根据一个方面，电源系统包括：功率级，该功率级包括电力开关和电感器；电源控制器，该电源控制器连接到该功率级；计量电路，该计量电路被配置为感测该