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公开(公告)号：US11228239B2
公开(公告)日：2022-01-18
申请号：US16858907
申请日：2020-04-27
Applicant: STMicroelectronics (Tours) SAS , STMicroelectronics LTD
Inventor： Ghafour Benabdelaziz , Laurent Gonthier
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.
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公开(公告)号：US09525361B2
公开(公告)日：2016-12-20
申请号：US14826627
申请日：2015-08-14
Applicant: STMicroelectronics (Tours) SAS
Inventor： Laurent Gonthier
CPC classification number: H02M7/06 , H02M1/081 , H02M7/155 , H02M7/1623
Abstract: A rectifying circuit includes a first diode coupled between a first terminal configured to receive application of an A.C. voltage and a first terminal configured to deliver a rectified voltage; and an anode-gate thyristor coupled between a second terminal configured to receive application of the A.C. voltage and a second terminal configured to deliver the rectified voltage, wherein an anode of the anode-gate thyristor is connected to the second terminal configured to deliver the rectified voltage.
Abstract translation: 整流电路包括耦合在被配置为接收交流电压的施加的第一端子和被配置为传送整流电压的第一端子之间的第一二极管; 以及耦合在被配置为接收所述AC电压的施加的第二端子和被配置为传送整流电压的第二端子之间的阳极栅极晶闸管，其中所述阳极栅极晶闸管的阳极连接到所述第二端子，所述第二端子被配置为传送整流的 电压。
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公开(公告)号：US09362842B2
公开(公告)日：2016-06-07
申请号：US14364857
申请日：2012-11-06
Applicant: STMicroelectronics (Tours) SAS
Inventor： Benoit Renard , Laurent Gonthier
CPC classification number: H02M7/1555 , H02M7/06 , H02M7/217 , H03K17/567 , H05B39/08
Abstract: A control circuit varies the power of a load powered by an alternating voltage, comprising: a first thyristor and a first diode connected in antiparallel between first and second nodes, the cathode of the first diode being on the side of the first node; a second thyristor and a second diode connected in antiparallel between the second node and a third node, the cathode of the second diode being on the side of the third node; third and fourth diodes connected in antiseries between the first and third nodes, the cathodes of the third and fourth diodes being connected to a fourth node; a transistor between the second and fourth nodes; and a control unit for controlling the first and second thyristors and the transistor.
Abstract translation: 控制电路改变由交流电压供电的负载的功率，包括：第一晶闸管和连接在第一和第二节点之间的反平行的第一二极管，第一二极管的阴极位于第一节点的侧面; 在第二节点和第三节点之间反并联连接的第二晶闸管和第二二极管，第二二极管的阴极位于第三节点的一侧; 连接在第一和第三节点之间的反电容中的第三和第四二极管，第三和第四二极管的阴极连接到第四节点; 第二和第四节点之间的晶体管; 以及用于控制第一和第二晶闸管和晶体管的控制单元。
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公开(公告)号：US20160111969A1
公开(公告)日：2016-04-21
申请号：US14826627
申请日：2015-08-14
Applicant: STMicroelectronics (Tours) SAS
Inventor： Laurent Gonthier
CPC classification number: H02M7/06 , H02M1/081 , H02M7/155 , H02M7/1623
Abstract: A rectifying circuit includes a first diode coupled between a first terminal configured to receive application of an A.C. voltage and a first terminal configured to deliver a rectified voltage; and an anode-gate thyristor coupled between a second terminal configured to receive application of the A.C. voltage and a second terminal configured to deliver the rectified voltage, wherein an anode of the anode-gate thyristor is connected to the second terminal configured to deliver the rectified voltage.
Abstract translation: 整流电路包括耦合在被配置为接收交流电压的施加的第一端子和被配置为传送整流电压的第一端子之间的第一二极管; 以及耦合在被配置为接收所述AC电压的施加的第二端子和被配置为传送整流电压的第二端子之间的阳极栅极晶闸管，其中所述阳极栅极晶闸管的阳极连接到所述第二端子，所述第二端子被配置为传送整流的 电压。
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公开(公告)号：US20140021872A1
公开(公告)日：2014-01-23
申请号：US14032561
申请日：2013-09-20
Applicant: STMicroelectronics (Tours) SAS
Inventor： Laurent Gonthier , Antoine Passal
IPC: H05B33/08
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。
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Patent Agency Ranking
公开(公告)号：US10014797B2
公开(公告)日：2018-07-03
申请号：US15659822
申请日：2017-07-26
Applicant: STMicroelectronics (Tours) SAS
Inventor： Laurent Gonthier , Muriel Nina , Romain Pichon
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.
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公开(公告)号：US09774243B2
公开(公告)日：2017-09-26
申请号：US14956660
申请日：2015-12-02
Applicant: STMicroelectronics (Tours) SAS
Inventor： Laurent Gonthier , Muriel Nina
CPC classification number: H02M1/32 , H02M1/36 , H02M7/062 , H02M7/125 , H02M7/162 , H02M7/515 , H02M2001/325
Abstract: An AC/DC converter receives an AC voltage at a first terminal and a second terminal. A rectifying bridge has a first input terminal coupled via a resistive element to the first terminal and a second input terminal connected to the second terminal, with output terminals of the rectifying bridge coupled to third and fourth terminals of the converter for generating a DC voltage. A first controllable rectifying thyristor couples the first terminal to the third terminal and a second controllable rectifying thyristor couples the fourth terminal to the first terminal. The resistive element functions as an inrush protection device during a first phase when the thyristors are turned off. In a second phase, the thyristors are selectively actuated.
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公开(公告)号：US20170110970A1
公开(公告)日：2017-04-20
申请号：US15157711
申请日：2016-05-18
Applicant: STMicroelectronics S.r.l. , STMicroelectronics (Tours) SAS
Inventor： Roberto Larosa , Giulio Zoppi , Laurent Gonthier
CPC classification number: H02M3/33507 , H02M1/08 , H02M1/081 , H02M1/36 , H02M1/42 , H02M7/062 , H02M7/125 , H02M2001/0006
Abstract: A rectifier bridge circuit includes a first SCR/IGBT switch and a second SCR/IGBT switch coupled to a circuit input to receive an ac input voltage. The first and second SCR/IGBT switches are alternatively switchable to generate a rectified voltage at a circuit output. Control currents coupled to control terminals of the first and second SCR/IGBT switches are power supply sourced from an auxiliary dc source generated by rectifying the ac input voltage. The control currents are generated by current sources coupled between the auxiliary dc source and the control terminals of the first and second SCR/IGBT switches. The current sources are selectively activatable to produce gating currents for switching on and off the first and second SCR/IGBT switches. A controller unit is provided to control the current sources via level shifter circuits. The control implements progressive conduction time of the first and second SCR/IGBT switches so as to provide inrush current limitation.
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公开(公告)号：US09172264B2
公开(公告)日：2015-10-27
申请号：US14013802
申请日：2013-08-29
Applicant: STMicroelectronics (TOURS) SAS
Inventor： Laurent Gonthier , Antoine Passal
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。
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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
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.
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