公开(公告)号：US11626880B2

公开(公告)日：2023-04-11

申请号：US17450711

申请日：2021-10-13

Applicant: STMicroelectronics S.r.l.

Inventor： Liliana Arcidiacono ,  Alessandro Nicolosi ,  Valeria Bottarel

IPC: H03K19/17736 ,  H03K19/08

Abstract: A circuit receives an input signal having a first level and a second level. A logic circuit includes a finite state machine circuit, an edge detector circuit, and a timer circuit. The finite state machine circuit is configured to set a mode of operation of the circuit. The edge detector circuit is configured to detect a transition between the first and second level. The timer circuit is configured to determine whether the first or second level is maintained over an interval, which starts from a transition detected by the edge detector circuit. The finite state machine circuit is configured to change the mode of operation based on the timer circuit determining that the first or second level has been maintained over the interval.

公开(公告)号：US20220166321A1

公开(公告)日：2022-05-26

申请号：US17532867

申请日：2021-11-22

Applicant: STMicroelectronics S.r.l.

Inventor： Niccolo' Brambilla ,  Sandro Rossi ,  Valeria Bottarel ,  Alessandro Nicolosi

IPC: H02M3/158 ,  H02M1/08 ,  H02M1/00 ,  H03K17/687

Abstract: In an embodiment, a switching converter includes: a switching stage configured to receive a direct current input voltage, receive a driving signal for driving the switching stage, and provide a direct current output voltage according to the input voltage and the driving signal; a driving stage configured to provide the driving signal to the switching stage; a current sensing circuit configure to sense an output current provided by the switching stage; and a voltage generation circuit configured to generate at least one supply voltage for powering the driving stage, and adjust the at least one supply voltage according to the output current.

公开(公告)号：US20220166320A1

公开(公告)日：2022-05-26

申请号：US17532833

申请日：2021-11-22

Applicant: STMicroelectronics S.r.l.

Inventor： Niccolo' Brambilla ,  Sandro Rossi ,  Valeria Bottarel ,  Alessandro Nicolosi

IPC: H02M3/158 ,  H02M1/00

Abstract: In an embodiment, a switching converter includes: a switching stage including first and second switching devices for receiving an input voltage and for providing an output voltage; a driving stage including first and second driving devices for driving the first and second switching devices, respectively; a current sensing arrangement for sensing an output current provided by the switching stage; a voltage generation arrangement configured to generate a supply voltage for powering the driving stage, the voltage generation arrangement being configured to adjust the supply voltage according to the sensed output current; and a charge recovery stage configured to store a first electric charge being lost from the first driving device during driving of the first switching device and to release at least partially the stored first electric charge to the second driving device during driving of the second switching device.

公开(公告)号：US20220149844A1

公开(公告)日：2022-05-12

申请号：US17450711

申请日：2021-10-13

Applicant: STMicroelectronics S.r.l.

Inventor： Liliana Arcidiacono ,  Alessandro Nicolosi ,  Valeria Bottarel

IPC: H03K19/17736 ,  H03K19/08

Abstract: A circuit receives an input signal having a first level and a second level. A logic circuit includes a finite state machine circuit, an edge detector circuit, and a timer circuit. The finite state machine circuit is configured to set a mode of operation of the circuit. The edge detector circuit is configured to detect a transition between the first and second level. The timer circuit is configured to determine whether the first or second level is maintained over an interval, which starts from a transition detected by the edge detector circuit. The finite state machine circuit is configured to change the mode of operation based on the timer circuit determining that the first or second level has been maintained over the interval.

公开(公告)号：US09966944B2

公开(公告)日：2018-05-08

申请号：US15216271

申请日：2016-07-21

Applicant: STMicroelectronics S.R.L.

Inventor： Sandro Rossi ,  Valeria Bottarel

IPC: H03K3/00 ,  H03K17/687 ,  H03K19/0175

CPC classification number: H03K17/687 ,  H03K3/3565 ,  H03K17/04123 ,  H03K17/063 ,  H03K17/6872 ,  H03K19/017509 ,  H03K19/018521 ,  H03K2217/0036 ,  H03K2217/0045

Abstract: A gate driver circuit for a half bridge or full bridge output driver stage having a high side branch connected to one or more high side transistors and a low side branch connected to one or more low side transistors. A high side gate driver and a low side gate driver receive input signals at a low voltage level and output signals at a high voltage level as gate driving signals for the high side transistors and low side transistors. Each of the high side and the low side branches of the gate driver includes a set-reset latch having a signal output that is fed as a gate signal to the corresponding transistor of the half bridge or full bridge driver. A differential capacitive level shifter circuit receives the input signals at a low voltage level and outputs high voltage signals to drive the set and reset inputs of the set-reset latch.

公开(公告)号：US09450434B2

公开(公告)日：2016-09-20

申请号：US14181270

申请日：2014-02-14

Applicant: STMicroelectronics S.r.l.

Inventor： Valeria Bottarel ,  Giulio Ricotti

IPC: H02J7/00 ,  H01M10/44 ,  H01M10/46 ,  H02J7/32 ,  H02M1/36 ,  H02M1/00

CPC classification number: H02J7/0052 ,  H02J7/32 ,  H02M1/36 ,  H02M2001/0032 ,  Y02B70/16

Abstract: An energy-harvesting system includes a transducer to convert environmental energy into a harvesting electrical signal. A storage element stores electrical energy derived from conversion of the harvested environmental energy. A harvesting interface supplies an electrical charging signal to the storage element. The harvesting interface is selectively connected to the storage element in response to a control signal. The control signal causes the connection when the harvesting electrical signal exceeds a threshold. Conversely, the control signal causes the disconnection when the harvesting electrical signal is less than the threshold.

Abstract translation: 能量收集系统包括将环境能量转换成收获电信号的换能器。 存储元件存储从收获的环境能量的转化得到的电能。 收割界面向存储元件提供充电信号。 响应于控制信号，收获界面选择性地连接到存储元件。 当采集电信号超过阈值时，控制信号导致连接。 相反，当采集电信号小于阈值时，控制信号导致断开。

公开(公告)号：US11888384B2

公开(公告)日：2024-01-30

申请号：US17532833

申请日：2021-11-22

Applicant: STMicroelectronics S.r.l.

Inventor： Niccolo′ Brambilla ,  Sandro Rossi ,  Valeria Bottarel ,  Alessandro Nicolosi

IPC: H02M3/158 ,  H02M1/00

CPC classification number: H02M1/0006 ,  H02M3/158

Abstract: In an embodiment, a switching converter includes: a switching stage including first and second switching devices for receiving an input voltage and for providing an output voltage; a driving stage including first and second driving devices for driving the first and second switching devices, respectively; a current sensing arrangement for sensing an output current provided by the switching stage; a voltage generation arrangement configured to generate a supply voltage for powering the driving stage, the voltage generation arrangement being configured to adjust the supply voltage according to the sensed output current; and a charge recovery stage configured to store a first electric charge being lost from the first driving device during driving of the first switching device and to release at least partially the stored first electric charge to the second driving device during driving of the second switching device.

公开(公告)号：US11881779B2

公开(公告)日：2024-01-23

申请号：US17533042

申请日：2021-11-22

Applicant: STMicroelectronics S.r.l.

Inventor： Alessandro Nicolosi ,  Valeria Bottarel

IPC: H02M3/158 ,  H02M1/00

CPC classification number: H02M3/158 ,  H02M1/0009

Abstract: In an embodiment a DC-DC switching power converter includes a switching circuitry including switches, the switching circuitry configured to receive a DC input voltage and generate a DC output voltage via switching the switches, a switching control circuitry configured to control switching of the switches with a switching signal having a corresponding switching frequency with a corresponding duty cycle, the DC output voltage generated by the switching circuitry depending on the duty cycle, wherein the switching control circuitry is configured to set the duty cycle based on a difference between the DC output voltage and a reference voltage in a closed loop configuration and a compensation network configured to provide stability to an operation of the DC-DC switching power converter, wherein the compensation network has a capacitance having a value depending on the switching frequency.

公开(公告)号：US20230006545A1

公开(公告)日：2023-01-05

申请号：US17364063

申请日：2021-06-30

Applicant: STMicroelectronics S.r.l.

Inventor： Juri Giovannone ,  Valeria Bottarel ,  Stefano Corona

IPC: H02M3/04 ,  H03K5/14 ,  H03K5/131

Abstract: A direct current (DC) to DC (DC-DC) converter includes a comparator configured to set a pulse width of a signal pulse, the pulse width corresponding to a voltage level of an output voltage of the DC-DC converter; a digital delay line (DDL) operatively coupled to the comparator, the DDL configured increase the pulse width of the signal pulse by linearly introducing delays to the signal pulse; a multiplexer operatively coupled to the DDL, the multiplexer configured to selectively output a delayed version of the signal pulse; and a logic control circuit operatively coupled to the multiplexer and the DDL, the logic control circuit configured to adaptively adjust a precision of the DC-DC converter in accordance with a duty cycle of the DC-DC converter and a setpoint of the DC-DC converter.

公开(公告)号：US20220190721A1

公开(公告)日：2022-06-16

申请号：US17533042

申请日：2021-11-22

Applicant: STMicroelectronics S.r.l.

Inventor： Alessandro Nicolosi ,  Valeria Bottarel

IPC: H02M3/158

Abstract: In an embodiment a DC-DC switching power converter includes a switching circuitry including switches, the switching circuitry configured to receive a DC input voltage and generate a DC output voltage via switching the switches, a switching control circuitry configured to control switching of the switches with a switching signal having a corresponding switching frequency with a corresponding duty cycle, the DC output voltage generated by the switching circuitry depending on the duty cycle, wherein the switching control circuitry is configured to set the duty cycle based on a difference between the DC output voltage and a reference voltage in a closed loop configuration and a compensation network configured to provide stability to an operation of the DC-DC switching power converter, wherein the compensation network has a capacitance having a value depending on the switching frequency.