公开(公告)号：US11888397B2

公开(公告)日：2024-01-30

申请号：US17531024

申请日：2021-11-19

Applicant: STMicroelectronics S.r.l.

Inventor： Niccolo' Brambilla ,  Sandro Rossi ,  Valeria Bottarel

IPC: H02M3/158 ,  H02M1/00

CPC classification number: H02M3/158 ,  H02M1/0009

Abstract: A DC-DC switching converter includes power switches selectively coupling an output terminal with a first voltage or with a second voltage. A driver stage is coupled with the power switches for driving the power switches. A driver control stage is coupled with the driver stage for controlling the operation of the driver stage. An output current sensing circuit is coupled with the output terminal and with the driver control stage, and is configured to sense a sign of an output current delivered by the DC-DC switching converter at the output terminal and to generate control signals for the driver control stage. The driver control stage controls the operation of the driver stage according to states of the control signals received from the output current sensing circuit, for selectively delaying the activation of the power switches depending on the sensed sign of the output current.

公开(公告)号：US20220166321A1

公开(公告)日：2022-05-26

申请号：US17532867

申请日：2021-11-22

Applicant: STMicroelectronics S.r.l.

Inventor： Niccolo' Brambilla ,  Sandro Rossi ,  Valeria Bottarel ,  Alessandro Nicolosi

IPC: H02M3/158 ,  H02M1/08 ,  H02M1/00 ,  H03K17/687

Abstract: In an embodiment, a switching converter includes: a switching stage configured to receive a direct current input voltage, receive a driving signal for driving the switching stage, and provide a direct current output voltage according to the input voltage and the driving signal; a driving stage configured to provide the driving signal to the switching stage; a current sensing circuit configure to sense an output current provided by the switching stage; and a voltage generation circuit configured to generate at least one supply voltage for powering the driving stage, and adjust the at least one supply voltage according to the output current.

公开(公告)号：US20220166320A1

公开(公告)日：2022-05-26

申请号：US17532833

申请日：2021-11-22

Applicant: STMicroelectronics S.r.l.

Inventor： Niccolo' Brambilla ,  Sandro Rossi ,  Valeria Bottarel ,  Alessandro Nicolosi

IPC: H02M3/158 ,  H02M1/00

Abstract: In an embodiment, a switching converter includes: a switching stage including first and second switching devices for receiving an input voltage and for providing an output voltage; a driving stage including first and second driving devices for driving the first and second switching devices, respectively; a current sensing arrangement for sensing an output current provided by the switching stage; a voltage generation arrangement configured to generate a supply voltage for powering the driving stage, the voltage generation arrangement being configured to adjust the supply voltage according to the sensed output current; and a charge recovery stage configured to store a first electric charge being lost from the first driving device during driving of the first switching device and to release at least partially the stored first electric charge to the second driving device during driving of the second switching device.