公开(公告)号：EP4087108A1

公开(公告)日：2022-11-09

申请号：EP22169183.5

申请日：2022-04-21

Applicant: STMicroelectronics S.r.l.

Inventor： CASTELLANO, Gerardo ,  PEDONE, Leonardo ,  MINNELLA, Filippo ,  RAIMONDI, Marcello

IPC: H02M3/158 ,  H02M3/157 ,  H02M1/32 ,  H02M1/084 ,  H02M1/38

Abstract: A control circuit (22b) for a multiphase buck converter is disclosed. The control circuit (22b) comprises a regulator circuit (2222) and a plurality of phase control circuits (2220). The regulator circuit (2222) generates a regulation signal ( REG ) as a function of a feedback signal ( FB ) and a reference signal ( V ref ), and each phase control circuit (2220 1 , ..., 2220 n ) is configured to receive a current sense signal ( CS' ) and generate a respective PWM signal ( PWM' ) as a function of the respective current sense signal ( CS' 1 ) and the regulation signal ( REG ) .
In particular, the control circuit (22b) comprises a first selector circuit (30) and a second selector circuit (32) configured to receive a selection signal ( SEL ) and selectively connect each phase control circuit (2220) of a subset of the phase control circuits (2220) to a PWM signal ( PWM ) to be used to drive (220) a respective stage of the multiphase buck converter, and to current sense signal ( CS ) provided by the respective stage of the multiphase buck converter. A selection control circuit (34) generates the selection signal ( SEL ), in order to connect the phase control circuits (2220) to different stages of the multiphase buck converter.

公开(公告)号：EP4270206A1

公开(公告)日：2023-11-01

申请号：EP23162258.0

申请日：2023-03-16

Applicant: STMicroelectronics S.r.l.

Inventor： OREGGIA, Daniele ,  CANNONE, Alessandro ,  ALAGNA, Diego ,  RAIMONDI, Marcello

IPC: G06F13/42 ,  G06F13/38 ,  G06F13/40 ,  H04L12/40 ,  H01M10/42

Abstract: A battery management system includes: a controller (211); a master battery management integrated circuit, BMIC, device (213M) coupled to the controller (211) and configured to communicate with the controller (211) through a standard Serial Peripheral Interface, SPI, protocol; and a first slave BMIC device (213SA) and a second slave BMIC device (213SB) that are connected in a daisy chain configuration and communicating through Isolated SPI interfaces, where the first slave BMIC device (213 SA) is coupled to the master BMIC device (213M) 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 (213SA) and the second slave BMIC device (213SB) are configured to be coupled to a first battery pack and a second battery pack, respectively.

公开(公告)号：EP4254212A1

公开(公告)日：2023-10-04

申请号：EP23157086.2

申请日：2023-02-16

Applicant: STMicroelectronics S.r.l.

Inventor： CASTELLANO, Gerardo ,  GIORDANO, Antonio ,  RAIMONDI, Marcello

IPC: G06F13/42 ,  B60R21/0132

Abstract: A method to arm an airbag, the method including determining, by a system device (106), that an arming condition for the airbag has been met; delivering a communication to a master device (102) from the system device (106) to inform the master device (102) that the arming condition has been met; snooping the communication by an expansion device (106); and arming the airbag by the expansion device (106) in response to snooping the arming condition.