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公开(公告)号：JP2000209080A
公开(公告)日：2000-07-28
申请号：JP33431599
申请日：1999-11-25
Applicant: ST MICROELECTRONICS SA
Inventor： GONTHIER LAURENT
IPC: H03K17/725 , H03K17/687
Abstract: PROBLEM TO BE SOLVED: To control a switch without using a high frequency transformer by forming a bidirectional switch from oppositely parallel connected two unidirectional switches, controlling the switch through a block based on a single DC low voltage source and defining the first terminal of an AC power source, to which the bidirectional switch is connected, as a reference for a DC voltage. SOLUTION: A control circuit is used for controlling a bidirectional switch 1' formed from two diodes D1 and D2 and two N channel MOS transistors 30 and 31 connected in inversely parallel assemblies. The bidirectional switch 1' is controlled by a control block 5 fed by a DC voltage Vdc. The DC voltage Vdc and an AC voltage Vac are serially connected and the potential of a terminal E1 is defined as a reference for the DC voltage Vdc. Namely, the phase of the AC voltage Vac is defined as a reference actually. As a result, only the terminal of an opposite load Q2 at a node A is connected to a neutral point E2 of an AC power source.
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公开(公告)号：DE69929951T2
公开(公告)日：2006-11-23
申请号：DE69929951
申请日：1999-11-25
Applicant: ST MICROELECTRONICS SA
Inventor： GONTHIER LAURENT
IPC: H03K17/687 , H03K17/725
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公开(公告)号：FR2786629B1
公开(公告)日：2001-02-09
申请号：FR9815150
申请日：1998-11-27
Applicant: ST MICROELECTRONICS SA
Inventor： GONTHIER LAURENT
IPC: H03K17/725 , H03K17/687 , H02M1/08
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公开(公告)号：FR2859580B1
公开(公告)日：2006-01-21
申请号：FR0350504
申请日：2003-09-04
Applicant: ST MICROELECTRONICS SA
Inventor： GONTHIER LAURENT , ACHART RAYNALD
Abstract: L'invention concerne un gradateur de puissance pour charge alternative comprenant, entre deux bornes (4, 5), deux interrupteurs unidirectionnels (2, 3) montés en anti-parallèle et commandables à l'ouverture et à la fermeture, chaque interrupteur étant commandé par un circuit de pilotage (6, 7) réglant les instants d'ouverture de chacun des commutateurs par rapport à une consigne (11), chaque circuit de pilotage étant associé à un circuit d'alimentation comprenant un élément de stockage de tension (C1, C2) en série avec un élément de redressement unidirectionnel (D1, D2), le tout en parallèle avec un élément limiteur de tension (DZ1, DZ2), les deux circuits d'alimentation étant reliés l'un à l'autre par un condensateur (C) et les tensions d'alimentation respectives des circuits de pilotage étant prélevées aux bornes des condensateurs respectifs de chaque circuit d'alimentation.
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公开(公告)号：FR2872354A1
公开(公告)日：2005-12-30
申请号：FR0451322
申请日：2004-06-24
Applicant: ST MICROELECTRONICS SA
Inventor： ACHART RAYNALD , GONTHIER LAURENT
IPC: H02M5/293 , H03K17/567 , H02M5/04
Abstract: L'invention concerne un circuit de commande en variation de puissance d'une charge (2) alimentée par une tension alternative et connectée directement à une première borne d'application de la tension alternative, comportant : deux transistors bipolaires à grilles isolées (11, 12), connectés en anti-parallèle entre une deuxième borne (4) d'application de la tension alternative et la charge ; un moyen de détection du passage par zéro de la tension alternative d'alimentation dans un premier sens ; un moyen de génération, à chaque période de la tension d'alimentation, d'une impulsion de durée prédéterminée de commande d'un premier (11) desdits transistors, l'instant d'apparition de l'impulsion étant conditionné par la détection du passage par zéro de la tension alternative et par une consigne de puissance souhaitée fixant un retard variable d'apparition de l'impulsion par rapport au passage par zéro détecté ; et un moyen (14, 17) d'inversion et de transfert de ladite impulsion à destination du deuxième transistor (12).
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Patent Agency Ranking
公开(公告)号：FR2803140A1
公开(公告)日：2001-06-29
申请号：FR9916491
申请日：1999-12-24
Applicant: ST MICROELECTRONICS SA
Inventor： GONTHIER LAURENT , DESTOUCHES MICKAEL , JALADE JEAN
Abstract: The generator comprises a first component (11) of Schottky diode type for the activation of rising front of pulse at the output node (17), and a second component (12') of thyristor type for blocking the first component and deactivating the pulse at the end of a predetermined delay which follows the activation of pulse. The generator also comprises a resistance-capacitance cell (R1, C1) between the input node (14) and the first component (11) for a pre-adjustment of the instant of appearance of the rising front of pulse, a resistor (R2) connected between the first component and the output node, and a resistor (R3) connected in parallel to the second component. The first component (11) is constituted by an element of thyristor type (11-1) and an element of Zener diode type (11-2) connected between the trigger and the anode. In the first embodiment, the second component is a thyristor with cathodic trigger, which is connected by the intermediary of a Zener diode to a capacitor node. In the second embodiment, the second component is a thyristor (12') with anodic trigger, which is connected to a sense node (20) of a component (2) of MOS transistor or IGBT type; a diode (D') and a Zener diode (18') are connected by between the anodic trigger and the sense node (20). A circuit for the control of a load power-fed by a high ac. voltage, eg. grid, comprises at least one power interrupter with di/dt control containing a parallel connection of a component of MOS transistor or IGBT type and a thyristor-type component, and at least one voltage pulse generator for the control of closing of transistor-type component, and at least one voltage pulse generator for the control of closing of transistor-type component. In the case of control circuit comprising two power interrupters, they are connected in series and opposition, and each is associated with one half-cycle of ac. voltage.
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公开(公告)号：AT480037T
公开(公告)日：2010-09-15
申请号：AT08750465
申请日：2008-01-04
Applicant: ST MICROELECTRONICS SA
Inventor： GONTHIER LAURENT , ACHART RAYNALD
Abstract: The invention relates to a device for controlling the speed and the rotation direction of an asynchronous motor (1), comprising a first circuit (7) with two bi-directional switches (T′4, T′5) individually controlled and having first conducting terminals connected to a common terminal (6) for applying a direct potential (Vcc) and having second conducting terminals that can be respectively connected to the first ends (12, 14) of windings (15, 16) of the motor stator, and a second circuit (3′) with at least two parallel bi-directional switches (T1, T2, T3) individually controlled and having first respective conducting terminals (Ki) connected to the common terminal.
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公开(公告)号：FR2893781A1
公开(公告)日：2007-05-25
申请号：FR0553570
申请日：2005-11-23
Applicant: ST MICROELECTRONICS SA
Inventor： GONTHIER LAURENT
Abstract: L'invention concerne un procédé et un circuit de commande d'un triac (T) destiné à être connecté en série avec un élément résistif à coefficient de température positif (3) ou au moins capacitif, et un enroulement (Ls) de démarrage d'un moteur asynchrone, pour alimentation par une tension alternative (Vac), l'invention consistant à : détecter une tension (V53) représentative de la tension (V3) aux bornes de l'association en série de l'élément résistif (3) et du triac (T) ; comparer cette tension détectée par rapport à un seuil (DZ1) ; et bloquer une remise en conduction du triac (T) quand ledit seuil est dépassé.
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公开(公告)号：FR2803140B1
公开(公告)日：2002-05-31
申请号：FR9916491
申请日：1999-12-24
Applicant: ST MICROELECTRONICS SA
Inventor： GONTHIER LAURENT , DESTOUCHES MICKAEL , JALADE JEAN
Abstract: The generator comprises a first component (11) of Schottky diode type for the activation of rising front of pulse at the output node (17), and a second component (12') of thyristor type for blocking the first component and deactivating the pulse at the end of a predetermined delay which follows the activation of pulse. The generator also comprises a resistance-capacitance cell (R1, C1) between the input node (14) and the first component (11) for a pre-adjustment of the instant of appearance of the rising front of pulse, a resistor (R2) connected between the first component and the output node, and a resistor (R3) connected in parallel to the second component. The first component (11) is constituted by an element of thyristor type (11-1) and an element of Zener diode type (11-2) connected between the trigger and the anode. In the first embodiment, the second component is a thyristor with cathodic trigger, which is connected by the intermediary of a Zener diode to a capacitor node. In the second embodiment, the second component is a thyristor (12') with anodic trigger, which is connected to a sense node (20) of a component (2) of MOS transistor or IGBT type; a diode (D') and a Zener diode (18') are connected by between the anodic trigger and the sense node (20). A circuit for the control of a load power-fed by a high ac. voltage, eg. grid, comprises at least one power interrupter with di/dt control containing a parallel connection of a component of MOS transistor or IGBT type and a thyristor-type component, and at least one voltage pulse generator for the control of closing of transistor-type component, and at least one voltage pulse generator for the control of closing of transistor-type component. In the case of control circuit comprising two power interrupters, they are connected in series and opposition, and each is associated with one half-cycle of ac. voltage.
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公开(公告)号：FR2786629A1
公开(公告)日：2000-06-02
申请号：FR9815150
申请日：1998-11-27
Applicant: ST MICROELECTRONICS SA
Inventor： GONTHIER LAURENT
IPC: H03K17/725 , H03K17/687 , H02M1/08
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