公开(公告)号：US20180219483A1

公开(公告)日：2018-08-02

申请号：US15421951

申请日：2017-02-01

Applicant: Powerventure Semiconductor Limited

Inventor： Yuan Wen Hsiao ,  Chang Ching Wu ,  Chi-Chia Huang ,  Der Ju Hung

IPC: H02M3/158 ,  H02M1/32

CPC classification number: H02M3/158 ,  H02M1/32 ,  H02M3/156 ,  H02M3/1588

Abstract: A protection circuit and a method for a high voltage switching regulator is presented. A power supply comprising a switching converter for providing an output voltage is provided. The switching converter is comprised of a first power switch coupled to a second power switch via a switching node, and a driver coupled to the first and second power switches. There is a protection circuit comprised of a first isolation switch coupled to a second isolation switch and a first driver for driving the first isolation switch, and a second driver for driving the second isolation switch. The circuit and method may comprise turning off both the first isolation switch and the second isolation switch when the first power switch and the second power switch are both turned off. This isolates a low voltage domain from a high voltage domain. This prevents current leakages from occurring during switching dead times.

公开(公告)号：US10110125B2

公开(公告)日：2018-10-23

申请号：US15590443

申请日：2017-05-09

Applicant: Powerventure Semiconductor Limited

Inventor： Der Ju Hung ,  Yuan Wen Hsiao ,  Chi-Chia Huang

IPC: H02M3/156 ,  H03K19/0185 ,  G01S7/00 ,  H02J9/06 ,  H03K19/0948 ,  H03K19/094 ,  H03K17/51

Abstract: A sequential driving method for driving a switch circuit of a power converter is presented. The method has the steps of driving a switch circuit which contains a power switch, defining a driving sequence; and applying sequentially an electrical parameter to the power switch, based on the driving sequence. Defining a driving sequence includes defining a plurality of different driving levels associated with the electrical parameter and defining a plurality of time windows within a switching time period. Each time window is associated with a driving level among the plurality of driving levels.

公开(公告)号：US20180152188A1

公开(公告)日：2018-05-31

申请号：US15590443

申请日：2017-05-09

Applicant: Powerventure Semiconductor Limited

Inventor： Der Ju Hung ,  Yuan Wen Hsiao ,  Chi-Chia Huang

IPC: H03K19/0185 ,  H02M3/156 ,  G01S7/00 ,  H02J9/06 ,  H03K19/0948 ,  H03K19/094

CPC classification number: H02M3/156 ,  G01S7/00 ,  H02J9/06 ,  H03K17/163 ,  H03K17/284 ,  H03K19/01855 ,  H03K19/09429 ,  H03K19/0948 ,  H03K2017/515

Abstract: A sequential driving method for driving a switch circuit of a power converter is presented. The method has the steps of driving a switch circuit which contains a power switch, defining a driving sequence; and applying sequentially an electrical parameter to the power switch, based on the driving sequence. Defining a driving sequence includes defining a plurality of different driving levels associated with the electrical parameter and defining a plurality of time windows within a switching time period. Each time window is associated with a driving level among the plurality of driving levels.

公开(公告)号：US10079539B2

公开(公告)日：2018-09-18

申请号：US15421951

申请日：2017-02-01

Applicant: Powerventure Semiconductor Limited

Inventor： Yuan Wen Hsiao ,  Chang Ching Wu ,  Chi-Chia Huang ,  Der Ju Hung

IPC: H02M3/158 ,  H02M1/32 ,  H02M3/156

CPC classification number: H02M3/158 ,  H02M1/32 ,  H02M3/156 ,  H02M3/1588 ,  Y02B70/1466

Abstract: A protection circuit and a method for a high voltage switching regulator is presented. A power supply comprising a switching converter for providing an output voltage is provided. The switching converter is comprised of a first power switch coupled to a second power switch via a switching node, and a driver coupled to the first and second power switches. There is a protection circuit comprised of a first isolation switch coupled to a second isolation switch and a first driver for driving the first isolation switch, and a second driver for driving the second isolation switch. The circuit and method may comprise turning off both the first isolation switch and the second isolation switch when the first power switch and the second power switch are both turned off. This isolates a low voltage domain from a high voltage domain. This prevents current leakages from occurring during switching dead times.