公开(公告)号：US20220216789A1

公开(公告)日：2022-07-07

申请号：US17569296

申请日：2022-01-05

Applicant: STMicroelectronics S.r.l.

Inventor： Alessandro GASPARINI ,  Alessandro BERTOLINI ,  Mauro LEONCINI ,  Massimo GHIONI ,  Salvatore LEVANTINO

IPC: H02M3/158 ,  H02M1/00

Abstract: A time based boost DC-DC converter generates an output voltage using an inductor. A voltage error between the output voltage and a reference voltage is determined and processed in a) an integral control branch which converts the voltage error into an integral control current signal used to control a current controlled oscillator, and b) a proportional branch which converts the voltage error into a proportional control current signal used to control signal a delay line. Current flowing in the inductor is sensed, attenuated and used to apply adjustment to the integral and proportional control current signals. The output from the current controlled oscillator is passed through the delay line and phase detected in order to generate pulse width modulation (PWM) control signaling driving switch operation in the converter.

公开(公告)号：US20240356443A1

公开(公告)日：2024-10-24

申请号：US18758327

申请日：2024-06-28

Applicant: STMicroelectronics S.r.l.

Inventor： Alessandro GASPARINI ,  Alessandro BERTOLINI ,  Mauro LEONCINI ,  Massimo GHIONI ,  Salvatore LEVANTINO

IPC: H02M3/158 ,  H02M1/00

CPC classification number: H02M3/158 ,  H02M1/0009 ,  H02M1/0025

Abstract: A time based boost DC-DC converter generates an output voltage using an inductor. A voltage error between the output voltage and a reference voltage is determined and processed in a) an integral control branch which converts the voltage error into an integral control current signal used to control a current controlled oscillator, and b) a proportional branch which converts the voltage error into a proportional control current signal used to control signal a delay line. Current flowing in the inductor is sensed, attenuated and used to apply adjustment to the integral and proportional control current signals. The output from the current controlled oscillator is passed through the delay line and phase detected in order to generate pulse width modulation (PWM) control signaling driving switch operation in the converter.

公开(公告)号：US20230055825A1

公开(公告)日：2023-02-23

申请号：US17885901

申请日：2022-08-11

Applicant: STMicroelectronics S.r.l.

Inventor： Alessandro GASPARINI ,  Mauro LEONCINI ,  Claudio LUISE ,  Alberto CATTANI ,  Massimo GHIONI ,  Salvatore LEVANTINO

IPC: H02M3/158 ,  H05B45/3725

Abstract: A Single Input Dual Output converter includes a first switch coupling an input to a first inductor terminal, a second switch coupling a second inductor terminal to ground, a third switch coupling the second inductor terminal to a positive output, and a fourth switch coupling the first inductor terminal to a negative output. During time-shared control, the negative and positive outputs are independently served by conversion cycles. Each conversion cycle includes: a positive phase with a positive charge phase (closing only the first and second switches), followed by an additional phase (closing only the first and third switches for a given time duration), and followed by a positive discharge phase (closing only the third and fourth switches). Each conversion cycle further includes a negative phase with a negative charge phase (closing only the first and second switches) followed by a negative discharge phase (closing only the second and fourth switches).