公开(公告)号：US20240345987A1

公开(公告)日：2024-10-17

申请号：US18756821

申请日：2024-06-27

Applicant: STMicroelectronics S.r.l.

Inventor： Daniele Oreggia ,  Alessandro Cannone ,  Diego Alagna ,  Marcello Raimondi

IPC: G06F13/42 ,  G06F13/364 ,  G06F13/40

CPC classification number: G06F13/4291 ,  G06F13/364 ,  G06F13/4022

Abstract: A battery management system includes: a controller; a master battery management integrated circuit (BMIC) device coupled to the controller and configured to communicate with the controller through a standard Serial Peripheral Interface (SPI) protocol; and a first slave BMIC device and a second slave BMIC device that are connected in a daisy chain configuration and communicating through Isolated SPI interfaces, where the first slave BMIC device is coupled to the master BMIC through an Isolated SPI interface, where the Isolated SPI interface uses a differential signal comprising a positive signal and a complementary negative signal, where a bit frame of the positive signal includes a bit period followed by an idle period having a same duration as the bit period, where the first slave BMIC device and the second slave BMIC device are configured to be coupled to a first battery pack and a second battery pack, respectively.

公开(公告)号：US12056080B2

公开(公告)日：2024-08-06

申请号：US17732114

申请日：2022-04-28

Applicant: STMicroelectronics S.r.l.

Inventor： Daniele Oreggia ,  Alessandro Cannone ,  Diego Alagna ,  Marcello Raimondi

IPC: G06F13/42 ,  G06F13/364 ,  G06F13/40

CPC classification number: G06F13/4291 ,  G06F13/364 ,  G06F13/4022

Abstract: A battery management system includes: a controller; a master battery management integrated circuit (BMIC) device coupled to the controller and configured to communicate with the controller through a standard Serial Peripheral Interface (SPI) protocol; and a first slave BMIC device and a second slave BMIC device that are connected in a daisy chain configuration and communicating through Isolated SPI interfaces, where the first slave BMIC device is coupled to the master BMIC through an Isolated SPI interface, where the Isolated SPI interface uses a differential signal comprising a positive signal and a complementary negative signal, where a bit frame of the positive signal includes a bit period followed by an idle period having a same duration as the bit period, where the first slave BMIC device and the second slave BMIC device are configured to be coupled to a first battery pack and a second battery pack, respectively.

公开(公告)号：US12021454B2

公开(公告)日：2024-06-25

申请号：US17730878

申请日：2022-04-27

Applicant: STMicroelectronics S.r.l.

Inventor： Gerardo Castellano ,  Leonardo Pedone ,  Filippo Minnella ,  Marcello Raimondi

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

CPC classification number: H02M3/1586 ,  H02M1/0009 ,  H02M1/08 ,  H02M1/0043

Abstract: A control circuit for a multiphase buck converter includes a regulator circuit and a plurality of phase control circuits. The regulator circuit generates a regulation signal based on a feedback signal and a reference signal, and each phase control circuit receives a current sense signal and generates a respective PWM signal based on the respective current sense signal and the regulation signal. The control circuit includes a first selector circuit and a second selector circuit configured to receive a selection signal and selectively connect each phase control circuit of a subset of the phase control circuits to a PWM signal for driving a respective stage of the multiphase buck converter, and to a current sense signal provided by the respective stage of the multiphase buck converter. A selection control circuit generates the selection signal in order to connect the phase control circuits to different stages of the multiphase buck converter.

公开(公告)号：US20230311801A1

公开(公告)日：2023-10-05

申请号：US17711681

申请日：2022-04-01

Applicant: STMicroelectronics S.r.l.

Inventor： Gerardo Castellano ,  Antonio Giordano ,  Marcello Raimondi

IPC: B60R21/015

CPC classification number: B60R21/01512 ,  B60R2021/01211

Abstract: A method to arm an airbag, the method including determining, by a system device, that an arming condition for the airbag has been met; delivering a communication to a master device from the system device to inform the master device that the arming condition has been met; snooping the communication by an expansion device; and arming the airbag by the expansion device in response to snooping the arming condition.