公开(公告)号：US20230308097A1

公开(公告)日：2023-09-28

申请号：US18328266

申请日：2023-06-02

Applicant: STMicroelectronics S.r.l.

Inventor： Vittorio D'Angelo ,  Salvatore Cannavacciuolo ,  Valerio Bendotti ,  Paolo Selvo ,  Diego Alagna

IPC: H03K17/567 ,  H03K3/017 ,  H03K7/08 ,  H03K17/687 ,  H03K17/689 ,  H03M1/50

CPC classification number: H03K17/567 ,  H03K3/017 ,  H03K7/08 ,  H03K17/687 ,  H03K17/689 ,  H03M1/504

Abstract: In an embodiment a method includes receiving, at an input of a low-voltage section of a gate driver, a PWM control signal with a switching frequency, providing, at an output of a high-voltage section of the gat driver, a gate-driving signal as a function of the PWM control signal to a power stage, wherein the high-voltage section is galvanically isolated from the low-voltage section, receiving, at a feedback input of the high-voltage section, at least one feedback signal indicative of an operation of the power stage, converting, at an ADC module of the high-voltage section, the feedback signal into a digital data stream, providing, to the ADC module, a conversion-trigger signal designed to determine a start of a conversion for acquiring a new sample of the feedback signal and sending, via an isolation communication channel between the low-voltage section and the high-voltage section, the digital data stream to the low-voltage section.

公开(公告)号：US11370321B2

公开(公告)日：2022-06-28

申请号：US16893729

申请日：2020-06-05

Applicant: STMicroelectronics S.r.l.

Inventor： Orazio Pennisi ,  Valerio Bendotti ,  Vittorio D'Angelo ,  Daniele Zella

IPC: B60L58/10 ,  B60L50/60 ,  H02J7/00

Abstract: A method of operating a battery management system is disclosed. A first voltage drop is sensed between a first terminal of a first battery cell and a second terminal of the first battery cell and a second voltage drop is sensed between a charge distribution pin and the second terminal of the first battery cell. The charge distribution pin is coupled to the first terminal of the first battery cell through a resistor. A difference is calculated between the first voltage drop and the second voltage drop and a faulty condition is detected when Rn absolute value of the difference between the first voltage drop and the second voltage drop exceeds a threshold.