公开(公告)号：US20190115846A1

公开(公告)日：2019-04-18

申请号：US16207942

申请日：2018-12-03

Applicant: Infineon Technologies Austria AG

Inventor： Xiaowu Gong ,  Marc Fahlenkamp ,  Anthony Sanders

IPC: H02M3/335

CPC classification number: H02M3/33592

Abstract: A flyback converter includes a primary-side switch connected to a primary-side winding of a transformer and a secondary-side switch connected to a secondary-side winding of the transformer. The flyback converter is operated by controlling the primary-side switch to store energy in the transformer during ON periods of the primary-side switch, switching on the secondary-side switch synchronously with switching off the primary-side switch to transfer energy from the transformer to the secondary side, determining an off time of the secondary-side switch based on a reflected input voltage measured at the secondary-side winding when the primary-side switch is on, accounting for a settling time of the reflected input voltage when determining the off time of the secondary-side switch so that the settling time has little or no effect on the off time, and switching off the secondary-side switch based on the off time.

公开(公告)号：US10158297B1

公开(公告)日：2018-12-18

申请号：US15627579

申请日：2017-06-20

Applicant: Infineon Technologies Austria AG

Inventor： Xiaowu Gong ,  Marc Fahlenkamp ,  Anthony Sanders

IPC: H02M3/335

Abstract: A flyback converter includes a primary-side switch connected to a primary-side winding of a transformer and a secondary-side switch connected to a secondary-side winding of the transformer. The flyback converter is operated by controlling the primary-side switch to store energy in the transformer during ON periods of the primary-side switch, switching on the secondary-side switch synchronously with switching off the primary-side switch to transfer energy from the transformer to the secondary side, determining an off time of the secondary-side switch based on a reflected input voltage measured at the secondary-side winding when the primary-side switch is on, accounting for a settling time of the reflected input voltage when determining the off time of the secondary-side switch so that the settling time has little or no effect on the off time, and switching off the secondary-side switch based on the off time.

公开(公告)号：US20160248340A1

公开(公告)日：2016-08-25

申请号：US14630217

申请日：2015-02-24

Applicant: Infineon Technologies Austria AG

Inventor： Gerald Deboy ,  Anthony Sanders ,  Rolf Weis

IPC: H02M7/217

CPC classification number: H02M7/217 ,  H02M1/08 ,  H02M3/33592 ,  H02M2001/0009 ,  Y02B70/1475

Abstract: In accordance with an embodiment, a method includes receiving by a drive circuit electrical power from a voltage tap of a first rectifier circuit that includes a load path and a voltage tap, and using the electrical power by the drive circuit to drive a second rectifier circuit that includes a load path. The load path of the first rectifier circuit and the load path of the second rectifier circuit are coupled to a common circuit node.

Abstract translation: 根据实施例，一种方法包括通过驱动电路接收来自包括负载路径和电压抽头的第一整流器电路的电压抽头的电力，并且使用驱动电路的电力来驱动第二整流器电路 包括一个加载路径。 第一整流器电路的负载路径和第二整流电路的负载路径耦合到公共电路节点。