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专利名称:Synchronous multi-phase AC-to-DC
converter
发明人:James E. Masino,Roger L. Schultz申请号:US10962849申请日:20041012公开号:US07447051B2公开日:20081104
专利附图:
摘要:Disclosed herein are various embodiments of power conversion systems andmethods employing synchronous multi-phase AC-to-DC conversion. In one embodiment,a power converter comprises a transistor bridge and a switching controller that operates
the transistor bridge in response to AC voltage threshold crossings. The switchingcontroller may include a period counter to measure times between threshold crossings,and a delay counter to trigger a delayed state transition for the transistor bridge. Onedisclosed method embodiment comprises: receiving multiple phased alternatingvoltages; comparing each phased alternating voltage to a threshold; determining aperiod associated with voltage threshold crossings; triggering state transitions at somefraction of the period after each threshold crossing; and placing a transistor bridge into aconfiguration associated with a current state. For each state, the transistor bridgeconfiguration is designed to couple phased alternating voltages to two output terminalsin a sequence that produces a non-alternating voltage difference.
申请人:James E. Masino,Roger L. Schultz
地址:Houston TX US,Aubrey TX US
国籍:US,US
代理机构:Conley Rose, PC
代理人:Mark E. Scott
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