公开(公告)号：EP2553814B1

公开(公告)日：2014-04-02

申请号：EP11720133.5

申请日：2011-03-24

申请人： Valeo Systèmes de Contrôle Moteur

发明人： DE SOUSA, Luis ,  GELEZ, Nicolas ,  TALON, Emmanuel

IPC分类号： H03K17/66 ,  F02D41/20

CPC分类号： H03K17/664 ,  F01L9/04 ,  F01L2820/01 ,  F02D41/20 ,  F02D2041/2058 ,  F02D2041/2072

公开(公告)号：EP1110211A1

公开(公告)日：2001-06-27

申请号：EP00938748.1

申请日：2000-06-02

申请人： Koninklijke Philips Electronics N.V.

发明人： VEENSTRA, Hugo ,  LE, Luan

IPC分类号： G11B5/02 ,  H03K17/66

CPC分类号： G11B5/02 ,  G11B5/012 ,  G11B5/09 ,  H03K17/664

摘要： The invention provides a write driver circuit for writing an information signal on a magnetic record carrier. The write driver circuit comprises a first and a second input terminal (20,22) for receiving the information signal. A first current sink (24) is available, having a first transistor (T3) of a first type, having a first main electrode coupled to the first point of constant potential (+), having a second main electrode coupled to the first input (34) of a write head combination (32) via a first impedance (38), and a control electrode coupled to the first input terminal (20). A second current sink (28) is available having a second transistor (T4) of the first type, having a first main electrode coupled to the first point of constant potential (+), having a second main electrode coupled to the second input (36) of the write head combination via a second impedance (42), and a control electrode coupled to the second input terminal (22). A first current source (26) is available having a third transistor (T1) of the first type, having a first main electrode coupled to the first input (34) of the write head combination, having a second main electrode coupled to a second point of constant potential (-), and a control electrode coupled to the first input terminal (20). Further, a second current source (30) is available having a fourth transistor (T2) of the first type, having a first main electrode coupled to the second input (36) of the write head combination, having a second main electrode coupled to the second point of constant potential (-), and a control electrode coupled to the second input terminal (22).

公开(公告)号：EP2381567A1

公开(公告)日：2011-10-26

申请号：EP10731169.8

申请日：2010-01-18

申请人： Daikin Industries, Ltd.

发明人： KAWASHIMA, Reiji ,  HISAYAMA, Kazushi ,  HIBINO, Hiroshi ,  SEKIMOTO, Morimitsu ,  MAEDA, Toshiyuki ,  MATSUNO, Sumikazu

IPC分类号： H02M1/08

CPC分类号： H02M1/4208 ,  H02M3/33576 ,  H02M5/458 ,  H03K17/664 ,  H03K17/6874 ,  H03K17/74 ,  H03K2217/0009 ,  H03K2217/0081 ,  Y02B70/126

摘要： A bidirectional switch circuit includes two switching elements (SW1, SW2) connected to conduct a current in both directions. The two switching elements (SW1, SW2) are connected in series to each other. Of the two switching elements (SW1, SW2), the switching element (SW1) to which a reverse voltage is applied, a voltage of a source (S1) of one of the switching elements (SW1, SW2) being higher than a voltage of a drain (D) of the one, is configured to conduct a current from the source (S1) to the drain (D) even when an on-drive signal is not being input to a gate terminal (G1) of the one.

摘要翻译： 双向开关电路包括两个开关元件（SW1，SW2），其连接以在两个方向上传导电流。 两个开关元件（SW1，SW2）彼此串联连接。 在两个开关元件（SW1，SW2）中，施加有反向电压的开关元件（SW1），开关元件（SW1，SW2）中的一个的源极（S1）的电压高于 即使在未将驱动信号输入到该栅极端子（G1）的情况下，该漏极（D）被配置为将来自源极（S1）的电流传导到漏极（D）。

公开(公告)号：EP0778670A1

公开(公告)日：1997-06-11

申请号：EP96203344.5

申请日：1996-11-27

申请人： PHILIPS COMPOSANTS ET SEMICONDUCTEURS ,  PHILIPS ELECTRONICS N.V.

发明人： Leclerc, Patrick

IPC分类号： H03K17/66

CPC分类号： G11B5/022 ,  G11B5/02 ,  G11B5/09 ,  H03K17/664 ,  H03K17/6874

摘要： Circuit de type amplificateur en "H" dans lequel au moins deux miroirs de courant (M1, M2) sont utilisés pour alimenter la charge (L) en courant, alternativement dans un sens et dans l'autre.
Pour accélérer la mise en conduction des miroirs de courant, une capacité (20, 21) est associée à chacun d'eux, laquelle est alternativement, couplée en parallèle sur l'entrée du miroir de courant auquel elle est associée lorsque ce miroir débite, et couplée aux bornes de la tension d'alimentation (V2 - V1) lorsque ce miroir ne débite pas, opération qui est réalisée au moyen d'un jeu d'interrupteurs (S3, S4, S5, S6).
Application au pilotage d'une tête d'écriture sur disque magnétique.

摘要翻译： 操作开关（S1-S6），以便当相应的反射镜分配电流时将电容器（20,21）中的一个并联连接到电流反射镜，并且当反射镜不分配电流时将开关（S1-S6）耦合到电源。 电流镜表示输出电流比大于1的输出电流。 控制电流从相同的源交替地注入到反射镜中，并且由开关装置从一个引导到另一个。 另外的开关（S1，S2）与每个电流镜的输入端并联连接，以便在镜子不分配电流时分流输入。 开关和镜像晶体管都可以是MOSFET。

公开(公告)号：EP2381567A4

公开(公告)日：2014-06-04

申请号：EP10731169

申请日：2010-01-18

申请人： DAIKIN IND LTD

发明人： KAWASHIMA REIJI ,  HISAYAMA KAZUSHI ,  HIBINO HIROSHI ,  SEKIMOTO MORIMITSU ,  MAEDA TOSHIYUKI ,  MATSUNO SUMIKAZU

IPC分类号： H03K17/66 ,  H02M1/42 ,  H02M5/458 ,  H03K17/687 ,  H03K17/74

CPC分类号： H02M1/4208 ,  H02M3/33576 ,  H02M5/458 ,  H03K17/664 ,  H03K17/6874 ,  H03K17/74 ,  H03K2217/0009 ,  H03K2217/0081 ,  Y02B70/126

摘要： A bidirectional switch circuit includes two switching elements (SW1, SW2) connected to conduct a current in both directions. The two switching elements (SW1, SW2) are connected in series to each other. Of the two switching elements (SW1, SW2), the switching element (SW1) to which a reverse voltage is applied, a voltage of a source (S1) of one of the switching elements (SW1, SW2) being higher than a voltage of a drain (D) of the one, is configured to conduct a current from the source (S1) to the drain (D) even when an on-drive signal is not being input to a gate terminal (G1) of the one.

公开(公告)号：EP2553814A1

公开(公告)日：2013-02-06

申请号：EP11720133.5

申请日：2011-03-24

申请人： Valeo Systèmes de Contrôle Moteur

发明人： DE SOUSA, Luis ,  GELEZ, Nicolas ,  TALON, Emmanuel

IPC分类号： H03K17/66 ,  F02D41/20

CPC分类号： H03K17/664 ,  F01L9/04 ,  F01L2820/01 ,  F02D41/20 ,  F02D2041/2058 ,  F02D2041/2072

摘要： The present invention relates to a circuit (100) for controlling the current in an electrical control unit. Said circuit (100) comprises a bridge (101) provided with four terminals (105, 106, 107, 108) and four controlled switches (111, 112, 113, 114), a power supply (109) for the bridge, means (123) for producing a measurement signal representative of the current in the electrical unit (110), means (116) for comparing the measurement signal with a high threshold signal, and means (117) for comparing the measurement signal with a low threshold signal. The circuit (100) further includes counting means (115) for detecting when the measurement signal reaches the high threshold signal for the second time and when the measurement signal reaches the low threshold signal for the second time, and means (115) for controlling the switches, these means (115) authorising at least three of the following four states: a first state wherein the first (111) and fourth (112) switches are closed and the second (114) and third (113) switches are open, a second state wherein the second (114) and third (113) switches are closed and the first (111) and fourth (112) switches are open, and at least one of the following two states: a third state wherein the third (113) and fourth (112) switches are closed and the first (111) and second (114) switches are open, and a fourth state wherein the first (111) and second (114) switches are closed and the third (113) and fourth (112) switches are open. One application of the invention is in the field that involves current control in actuators used for electromagnetic valves in motor vehicles.