公开(公告)号：US20240048060A1

公开(公告)日：2024-02-08

申请号：US18341419

申请日：2023-06-26

申请人： Cypress Semiconductor Corporation

发明人： Jojy JOSE ,  Soon Hwei TAN ,  Hariom RAI ,  Arun KHAMESRA

IPC分类号： H02M3/335 ,  H03K17/691 ,  H02M1/00 ,  H03K17/10 ,  H02M1/08

CPC分类号： H02M3/33592 ,  H03K17/691 ,  H02M1/0045 ,  H03K17/102 ,  H02M1/083 ,  H03K2217/0063 ,  H03K2217/0072

摘要： A method comprising controlling operation, by a secondary-side controlled Universal Serial Bus Power Delivery (USB-PD) alternating current to direct current (AC-DC) converter, a low-side field-effect transistor (FET). In response to controlling operation of the low-side FET, the method further includes triggering a zero-cross detection circuit. The method further includes measuring a first period of time between controlling operation of the low-side FET and triggering the zero-cross detection circuit. The method further includes measuring a second period of time between controlling operation of a high-side FET and triggering the zero-cross detection circuit. The method further includes adjusting a third period of time based on the first period of time and the second period of time, wherein the third period of time corresponds to a dead time between controlling operation of the high-side FET and the low-side FET.