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1. 发明申请

US20110286245A1 DC/DC POWER CONVERTER HAVING ACTIVE SELF DRIVING SYNCHRONOUS RECTIFICATION 审中-公开
标题翻译：具有主动自驱动同步整流的DC / DC电源转换器
公开(公告)号：US20110286245A1
公开(公告)日：2011-11-24
申请号：US13005188
申请日：2011-01-12
申请人： XIAODONG ZHAN , WEIHONG QIU , FRED GREENFELD , ZHIXIANG LIANG
发明人： XIAODONG ZHAN , WEIHONG QIU , FRED GREENFELD , ZHIXIANG LIANG
IPC分类号： H02M3/28
CPC分类号： H02M3/33592 , Y02B70/1475
摘要： A DC/DC voltage converter includes a transformer having a primary side and a secondary side. Primary side circuitry is connected to the primary side and includes a first pair of switching transistors controlled responsive to first control signals from the primary side of the transformer and receiving an input voltage. Secondary side circuitry is connected to the secondary side and includes a second pair of switching transistors controlled responsive to second control signals from the secondary side of the transformer and providing an output voltage. Driver circuitry generates the second control signals responsive to drain and source voltages at each of the second pair of switching transistors and a first and second PWM control signals. Signal shaping circuitry provides the first and second PWM control signals responsive to a drain voltage of each of the second pair of switching transistors.
摘要翻译： DC / DC电压转换器包括具有初级侧和次级侧的变压器。初级侧电路连接到初级侧，并且包括响应于来自变压器的初级侧的第一控制信号控制并接收输入电压的第一对开关晶体管。次级侧电路连接到次级侧，并且包括响应于来自变压器的次级侧的第二控制信号控制并提供输出电压的第二对开关晶体管。驱动器电路响应于第二对开关晶体管中的每一个处的漏极和源极电压以及第一和第二PWM控制信号产生第二控制信号。信号整形电路提供响应于第二对开关晶体管中的每一个的漏极电压的第一和第二PWM控制信号。

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