公开(公告)号：US20220393567A1

公开(公告)日：2022-12-08

申请号：US17888001

申请日：2022-08-15

Applicant: STMICROELECTRONICS S.r.l.

Inventor： Fabrizio BOGNANNI ,  Giovanni CAGGEGI ,  Giuseppe CANTONE ,  Vincenzo MARANO ,  Francesco PULVIRENTI

IPC: H02M1/08 ,  H02M3/07 ,  H02M3/158 ,  H03K17/687

Abstract: A circuit includes a current path and a negative bootstrap circuitry coupled to the current path. The current path is coupled between a floating voltage and a reference ground, and includes a current generator coupled through a resistor to the floating voltage at a first node of the current generator. The current generator is controlled by a pulse signal. The negative bootstrap circuitry includes a pump capacitor coupled to a second node of the current generator and to the reference ground. The pump capacitor is configured to provide a negative voltage at the second node of the current generator based on the pulse signal.

公开(公告)号：US20210351686A1

公开(公告)日：2021-11-11

申请号：US17229554

申请日：2021-04-13

Applicant: STMICROELECTRONICS S.r.l.

Inventor： Fabrizio BOGNANNI ,  Giovanni CAGGEGI ,  Giuseppe CANTONE ,  Vincenzo MARANO ,  Francesco PULVIRENTI

IPC: H02M1/08 ,  H02M3/158 ,  H02M3/07 ,  H03K17/687

Abstract: A circuit includes a current path and a negative bootstrap circuitry coupled to the current path. The current path is coupled between a floating voltage and a reference ground, and includes a current generator coupled through a resistor to the floating voltage at a first node of the current generator. The current generator is controlled by a pulse signal. The negative bootstrap circuitry includes a pump capacitor coupled to a second node of the current generator and to the reference ground. The pump capacitor is configured to provide a negative voltage at the second node of the current generator based on the pulse signal.

公开(公告)号：US20240186884A1

公开(公告)日：2024-06-06

申请号：US18530080

申请日：2023-12-05

Applicant: STMICROELECTRONICS S.r.l.

Inventor： Fabrizio BOGNANNI ,  Giovanni CAGGEGI ,  Giuseppe CANTONE ,  Vincenzo MARANO ,  Francesco PULVIRENTI

IPC: H02M1/08 ,  H02M3/07 ,  H02M3/158 ,  H03K17/687

CPC classification number: H02M1/08 ,  H02M3/07 ,  H02M3/158 ,  H03K17/6872 ,  H03K2217/0081

Abstract: A circuit includes a current path and a negative bootstrap circuitry coupled to the current path. The current path is coupled between a floating voltage and a reference ground, and includes a current generator coupled through a resistor to the floating voltage at a first node of the current generator. The current generator is controlled by a pulse signal. The negative bootstrap circuitry includes a pump capacitor coupled to a second node of the current generator and to the reference ground. The pump capacitor is configured to provide a negative voltage at the second node of the current generator based on the pulse signal.