公开(公告)号：US11791815B2

公开(公告)日：2023-10-17

申请号：US17959785

申请日：2022-10-04

Applicant: STMicroelectronics S.r.l.

Inventor： Marco Giovanni Fontana ,  Marco Riva ,  Francesco Pulvirenti ,  Giuseppe Cantone

IPC: H03K5/151 ,  H03K17/16 ,  H03K17/687 ,  H03K17/06 ,  H03K17/0812

CPC classification number: H03K17/063 ,  H03K17/08122 ,  H03K2217/0063 ,  H03K2217/0072 ,  H03K2217/0081

Abstract: A circuit comprises first and second input supply nodes configured to receive a supply voltage therebetween. The circuit comprises a high-side driver circuit configured to be coupled to a high-side switch and produce a first signal between first and second high-side output nodes. The circuit comprises a low-side driver circuit configured to be coupled to a low-side switch and produce a second signal between first and second low-side output nodes. The circuit comprises a floating node configured to receive a floating voltage applied between the floating node and the second high-side output node, a bootstrap diode between the first input supply node and an intermediate node, and a current limiter circuit between the intermediate node and the floating node and configured to sense the floating voltage and counter a current flow from the intermediate node to the floating node as a result of the floating voltage reaching a threshold value.

公开(公告)号：US20220006450A1

公开(公告)日：2022-01-06

申请号：US17355055

申请日：2021-06-22

Applicant: STMicroelectronics S.r.l.

Inventor： Marco Giovanni Fontana ,  Marco Riva ,  Francesco Pulvirenti ,  Giuseppe Cantone

IPC: H03K17/06 ,  H03K17/0812

Abstract: A circuit comprises first and second input supply nodes configured to receive a supply voltage therebetween. The circuit comprises a high-side driver circuit configured to be coupled to a high-side switch and produce a first signal between first and second high-side output nodes. The circuit comprises a low-side driver circuit configured to be coupled to a low-side switch and produce a second signal between first and second low-side output nodes. The circuit comprises a floating node configured to receive a floating voltage applied between the floating node and the second high-side output node, a bootstrap diode between the first input supply node and an intermediate node, and a current limiter circuit between the intermediate node and the floating node and configured to sense the floating voltage and counter a current flow from the intermediate node to the floating node as a result of the floating voltage reaching a threshold value.

公开(公告)号：US20230040189A1

公开(公告)日：2023-02-09

申请号：US17959785

申请日：2022-10-04

Applicant: STMicroelectronics S.r.l.

Inventor： Marco Giovanni Fontana ,  Marco Riva ,  Francesco Pulvirenti ,  Giuseppe Cantone

IPC: H03K17/06 ,  H03K17/0812

Abstract: A circuit comprises first and second input supply nodes configured to receive a supply voltage therebetween. The circuit comprises a high-side driver circuit configured to be coupled to a high-side switch and produce a first signal between first and second high-side output nodes. The circuit comprises a low-side driver circuit configured to be coupled to a low-side switch and produce a second signal between first and second low-side output nodes. The circuit comprises a floating node configured to receive a floating voltage applied between the floating node and the second high-side output node, a bootstrap diode between the first input supply node and an intermediate node, and a current limiter circuit between the intermediate node and the floating node and configured to sense the floating voltage and counter a current flow from the intermediate node to the floating node as a result of the floating voltage reaching a threshold value.

公开(公告)号：US11476845B2

公开(公告)日：2022-10-18

申请号：US17355055

申请日：2021-06-22

Applicant: STMicroelectronics S.r.l.

Inventor： Marco Giovanni Fontana ,  Marco Riva ,  Francesco Pulvirenti ,  Giuseppe Cantone

IPC: H03K5/151 ,  H03K17/16 ,  H03K17/687 ,  H03K17/06 ,  H03K17/0812

Abstract: A circuit comprises first and second input supply nodes configured to receive a supply voltage therebetween. The circuit comprises a high-side driver circuit configured to be coupled to a high-side switch and produce a first signal between first and second high-side output nodes. The circuit comprises a low-side driver circuit configured to be coupled to a low-side switch and produce a second signal between first and second low-side output nodes. The circuit comprises a floating node configured to receive a floating voltage applied between the floating node and the second high-side output node, a bootstrap diode between the first input supply node and an intermediate node, and a current limiter circuit between the intermediate node and the floating node and configured to sense the floating voltage and counter a current flow from the intermediate node to the floating node as a result of the floating voltage reaching a threshold value.