公开(公告)号：US11936288B2

公开(公告)日：2024-03-19

申请号：US17548754

申请日：2021-12-13

Applicant: STMicroelectronics (Tours) SAS ,  STMicroelectronics LTD

Inventor： Ghafour Benabdelaziz ,  Laurent Gonthier

IPC: H02M1/42 ,  H02M1/32 ,  H02M7/155 ,  H02M7/217

CPC classification number: H02M1/4208 ,  H02M7/1557 ,  H02M7/217 ,  H02M1/322

Abstract: An AC capacitor is coupled to a totem-pole type PFC circuit. In response to detection of a power input disconnection, the PFC circuit is controlled to discharge the AC capacitor. The PFC circuit includes a resistor and a first MOSFET and a second MOSFET coupled in series between DC output nodes with a common node coupled to the AC capacitor. When the disconnection event is detected, one of the first and second MOSFETs is turned on to discharge the AC capacitor with a current flowing through the resistor and the turned on MOSFET. Furthermore, a thyristor may be simultaneously turned on, with the discharge current flowing through a series coupling of the MOSFET, resistor and thyristor. Disconnection is detected by detecting a zero-crossing failure of an AC power input voltage or lack of input voltage decrease or input current increase in response to MOSFET turn on for a DC input.

公开(公告)号：US10298143B2

公开(公告)日：2019-05-21

申请号：US15877854

申请日：2018-01-23

Applicant: STMICROELECTRONICS (TOURS) SAS

Inventor： Ghafour Benabdelaziz ,  Laurent Gonthier

IPC: H02M1/08 ,  H02M1/32 ,  H02M1/36 ,  H02M1/42 ,  H02M7/06 ,  H02M7/162

Abstract: A rectifying circuit including: between a first terminal of application of an AC voltage and a first rectified voltage delivery terminal, at least one first diode; and between a second terminal of application of the AC voltage and a second rectified voltage delivery terminal, at least one first anode-gate thyristor, the anode of the first thyristor being connected to the second rectified voltage delivery terminal; and at least one first stage for controlling the first thyristor, including: a first transistor coupling the thyristor gate to a terminal of delivery of a potential which is negative with respect to the potential of the second rectified voltage delivery terminal; and a second transistor connecting a control terminal of the first transistor to a terminal for delivering a potential which is positive with respect to the potential of the second rectified voltage delivery terminal, the anode of the first thyristor being connected to the common potential of voltages defined by said positive and negative potentials.

公开(公告)号：US20170324350A1

公开(公告)日：2017-11-09

申请号：US15659822

申请日：2017-07-26

Applicant: STMicroelectronics (Tours) SAS

Inventor： Laurent Gonthier ,  Muriel Nina ,  Romain Pichon

IPC: H02M7/162 ,  H02M7/12 ,  H02M7/06 ,  H02M1/08

CPC classification number: H02M7/162 ,  H02M1/081 ,  H02M7/062 ,  H02M7/125 ,  H02M7/1623

Abstract: An AC/DC converter includes: a first terminal and a second terminal for receiving an AC voltage and a third terminal and a fourth terminal for supplying a DC voltage. A rectifying bridge includes input terminals respectively coupled to the first terminal and the second terminal, and output terminals respectively coupled to the third terminal and fourth terminal. A first branch of the rectifying bridge includes, connected between the output terminals, two series-connected thyristors with a junction point of the two thyristors being connected to a first one of the input terminals. A second branch of the rectifying bridge is formed by series connected diodes. A control circuit is configured to generate control signals for application to the control gates of the thyristors.

公开(公告)号：US20170170746A1

公开(公告)日：2017-06-15

申请号：US15140163

申请日：2016-04-27

Applicant: STMicroelectronics (Tours) SAS

Inventor： Ghafour Benabdelaziz ,  Laurent Gonthier

IPC: H02M7/06 ,  H02M1/36 ,  H02M1/42

CPC classification number: H02M7/06 ,  H02M1/08 ,  H02M1/32 ,  H02M1/36 ,  H02M1/42 ,  H02M7/1623

Abstract: A rectifying circuit including: between a first terminal of application of an AC voltage and a first rectified voltage delivery terminal, at least one first diode; and between a second terminal of application of the AC voltage and a second rectified voltage delivery terminal, at least one first anode-gate thyristor, the anode of the first thyristor being connected to the second rectified voltage delivery terminal; and at least one first stage for controlling the first thyristor, including: a first transistor coupling the thyristor gate to a terminal of delivery of a potential which is negative with respect to the potential of the second rectified voltage delivery terminal; and a second transistor connecting a control terminal of the first transistor to a terminal for delivering a potential which is positive with respect to the potential of the second rectified voltage delivery terminal, the anode of the first thyristor being connected to the common potential of voltages defined by said positive and negative potentials.

公开(公告)号：US20160373021A1

公开(公告)日：2016-12-22

申请号：US14964618

申请日：2015-12-10

Applicant: STMicroelectronics (Tours) SAS

Inventor： Laurent Gonthier

IPC: H02M7/06 ,  H02M1/42 ,  H02M7/217

CPC classification number: H02M7/06 ,  H02M1/32 ,  H02M1/36 ,  H02M1/4208 ,  H02M7/125 ,  H02M7/217 ,  Y02P80/112

Abstract: An AC/DC converter includes a first terminal and a second terminal for receiving an AC voltage and a third terminal and a fourth terminal for delivering a DC voltage. Two transistor switches are series-connected between the third and fourth terminals, with their junction point connected to the first terminal. Two controllable rectifying elements are series-connected between the third and fourth terminals, with their junction point connected to the first terminal or to the second terminal. The two controllable rectifying elements are phase-angle controlled.

Abstract translation: AC / DC转换器包括用于接收AC电压的第一端子和第二端子，以及用于传送DC电压的第三端子和第四端子。 两个晶体管开关串联在第三和第四端子之间，其连接点连接到第一端子。 两个可控整流元件串联在第三和第四端子之间，其连接点连接到第一端子或第二端子。 两个可控整流元件是相位角控制的。

公开(公告)号：US08994283B2

公开(公告)日：2015-03-31

申请号：US14032561

申请日：2013-09-20

Applicant: STMicroelectronics (Tours) SAS

Inventor： Laurent Gonthier ,  Antoine Passal

IPC: H05B33/08 ,  H05B39/04

CPC classification number: H05B33/0818 ,  H05B33/0815 ,  H05B39/044 ,  Y02B20/19 ,  Y02B20/348

Abstract: A circuit capable of receiving, in series with at least one light-emitting diode, a rectified A.C. voltage, comprising: a first gate turn-off thyristor connected to first and second terminals of the circuit; and a control circuit for turning off the first thyristor when the voltage between the first and second terminals exceeds a threshold.

Abstract translation: 一种能够与至少一个发光二极管串联接收整流的交流电压的电路，包括：连接到电路的第一和第二端子的第一栅极截止晶闸管; 以及用于当第一和第二端子之间的电压超过阈值时关闭第一晶闸管的控制电路。

公开(公告)号：US20140062422A1

公开(公告)日：2014-03-06

申请号：US14013802

申请日：2013-08-29

Applicant: STMicroelectronics (TOURS) SAS

Inventor： Laurent Gonthier ,  Antoine Passal

IPC: H02J7/00

CPC classification number: H02J7/0052 ,  E06B3/22 ,  E06B3/26305 ,  E06B3/26345 ,  E06B3/267 ,  E06B3/822 ,  E06B2003/26312 ,  E06B2003/26316 ,  E06B2003/7076 ,  E06B2003/7082 ,  Y02A30/252 ,  Y02B80/28

Abstract: A circuit can be used for charging a capacitor with an AC voltage. In one embodiment, the circuit includes a capacitor coupled to be charged with the AC voltage. An adjustment is configured to adjust a capacitor charge speed according to a value of the AC voltage. The adjustment circuit includes at least one bipolar transistor coupled to receive a voltage at a base of the bipolar transistor. The voltage is a function of the value of the AC voltage.

Abstract translation: 电路可用于对具有交流电压的电容器充电。 在一个实施例中，电路包括耦合以对AC电压充电的电容器。 调整配置为根据交流电压的值调整电容器充电速度。 调节电路包括耦合以接收双极晶体管的基极处的电压的至少一个双极晶体管。 电压是交流电压值的函数。