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公开(公告)号：US20210367501A1
公开(公告)日：2021-11-25
申请号：US16880992
申请日：2020-05-22
摘要： Methods and systems for controlling an output voltage of a resonant converter during a light load condition. One such method includes generating a normalised conduction time of the resonant converter that varies inversely with a switching frequency of the resonant converter by continuing to operate the resonant converter in a Pulse Frequency Modulation mode at a low switching frequency that is similar to the resonant frequency. The method also includes controlling a power level delivered to a secondary winding of a transformer positioned between a resonant tank and an output rectifier of the resonant converter by regulating the normalised conduction time, where the delivered power level is variable based on load conditions. The method further includes generating an output voltage using the output rectifier wherein the magnitude of the output voltage corresponds to the power level delivered to the secondary winding.
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公开(公告)号：US11251690B2
公开(公告)日：2022-02-15
申请号：US16880992
申请日：2020-05-22
摘要： Methods and systems for controlling an output voltage of a resonant converter during a light load condition. One such method includes generating a normalised conduction time of the resonant converter that varies inversely with a switching frequency of the resonant converter by continuing to operate the resonant converter in a Pulse Frequency Modulation mode at a low switching frequency that is similar to the resonant frequency. The method also includes controlling a power level delivered to a secondary winding of a transformer positioned between a resonant tank and an output rectifier of the resonant converter by regulating the normalised conduction time, where the delivered power level is variable based on load conditions. The method further includes generating an output voltage using the output rectifier wherein the magnitude of the output voltage corresponds to the power level delivered to the secondary winding.
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3.发明授权公开(公告)号：US08363427B2
公开(公告)日：2013-01-29
申请号：US12823499
申请日：2010-06-25
IPC分类号： H02M3/335 , H02M7/217 , H02M7/5387
CPC分类号： H02M3/3376 , H02M3/33584 , H02M3/33592 , Y02B70/1433 , Y02B70/1475
摘要： A resonant, bi-directional, DC to DC voltage converter with loss-less (soft) switching having regulated output and capable of converting power between two, high-potential and low-potential DC voltage sources. The converter's semiconductor and magnetic components provide both, output regulation and soft switching in both (step-down and step-up) directions of power conversion which reduces total component count, cost and volume and enhances power conversion efficiency.
摘要翻译： 具有无损（软）开关的谐振双向直流 - 直流电压转换器，具有稳定的输出，并能够在两个高电位和低电位直流电压源之间转换功率。 转换器的半导体和磁性元件在功率转换（降压和升压）两个方面都提供输出调节和软开关，从而减少总体元件数量，成本和体积，并提高功率转换效率。
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4.发明申请公开(公告)号：US20110317452A1
公开(公告)日：2011-12-29
申请号：US12823499
申请日：2010-06-25
IPC分类号： H02M3/335
CPC分类号： H02M3/3376 , H02M3/33584 , H02M3/33592 , Y02B70/1433 , Y02B70/1475
摘要： A resonant, bi-directional, DC to DC voltage converter with loss-less (soft) switching having regulated output and capable of converting power between two, high-potential and low-potential DC voltage sources. The converter's semiconductor and magnetic components provide both, output regulation and soft switching in both (step-down and step-up) directions of power conversion which reduces total component count, cost and volume and enhances power conversion efficiency.
摘要翻译： 具有无损（软）开关的谐振双向直流 - 直流电压转换器，具有稳定的输出，并能够在两个高电位和低电位直流电压源之间转换功率。 转换器的半导体和磁性元件在功率转换（降压和升压）两个方面都提供输出调节和软开关，从而减少总体元件数量，成本和体积，并提高功率转换效率。
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