公开(公告)号：US20240364207A1

公开(公告)日：2024-10-31

申请号：US18308151

申请日：2023-04-27

Applicant: Infineon Technologies AG

Inventor： Marco Flaibani ,  Stefano Zampieri ,  Giovanni Bisson

IPC: H02M1/08 ,  H02M3/157 ,  H02M3/158 ,  H03K5/24

CPC classification number: H02M1/08 ,  H02M3/157 ,  H02M3/158 ,  H03K5/24

Abstract: A circuit includes a switching signal generator and synchronization circuitry configured to determine a first time of a switching period based on a switching signal. The circuit further includes a comparison signal generator configured to generate a comparison signal with a first constant rate of change after the first time. The synchronization circuitry is further configured to determine a second time of the switching period based on when current at the inductive element changes from a positive current to a negative current. The comparison signal generator is further configured to generate the comparison signal with a second constant rate of change after the second time. The circuit further includes a threshold detector configured to compare a value of the comparison signal at the end of a target switching period with a threshold value.

公开(公告)号：US20240364209A1

公开(公告)日：2024-10-31

申请号：US18308180

申请日：2023-04-27

Applicant: Infineon Technologies AG

Inventor： Giovanni Bisson ,  Stefano Zampieri

IPC: H02M1/15 ,  H02M1/08 ,  H02M3/158

CPC classification number: H02M1/15 ,  H02M1/08 ,  H02M3/158

Abstract: A device may drive, during a first portion of a switching period, a first switching element to electrically connect a switching node to a first node of a supply. The switching node is configured to couple to a first node of an inductive element. The device may drive, during a second portion of the switching period, a second switching element to electrically connect the switching node to a second node of the supply of the controller circuitry. The device may drive, during a third portion of the switching period, the first switching element to refrain from connecting the switching node to the first node of the supply of the controller circuitry, the second switching element to refrain from connecting the switching node to the second node of the supply, and a third switching element to electrically connect the switching node to a second node of the inductive element.

公开(公告)号：US20170364111A1

公开(公告)日：2017-12-21

申请号：US15188855

申请日：2016-06-21

Applicant: Infineon Technologies AG

Inventor： Marco Flaibani ,  Giovanni Bisson ,  Marco Piselli

IPC: G05F1/575 ,  H02M3/04

CPC classification number: G05F1/575 ,  H02M3/04

Abstract: A circuit comprising a series voltage regulator comprising a first semiconductor device coupled in series between a supply voltage and a voltage output, the series regulator operable to receive a voltage level from the supply voltage and to provide a regulated voltage level at the voltage output; and a parallel voltage regulator comprising a second semiconductor device coupled to the voltage output, the parallel voltage regulator operable to detect a variation in a voltage level provided at the voltage output, and to sink and/or source a current from/to the voltage output through the semiconductor device, an amount of current sunk and/or sourced adequate to offset the change in the voltage level at the voltage output.