公开(公告)号：EP0570256A1

公开(公告)日：1993-11-18

申请号：EP93401147.9

申请日：1993-05-04

申请人： THOMSON-CSF

发明人： Wolk, Ivan ,  Boulzaguet, Guy

IPC分类号： H04B1/04 ,  H01Q9/14 ,  H03K17/60

CPC分类号： H01Q9/145 ,  H03K17/601 ,  H04B1/0458

摘要： Des inductances commutables pour forts courants sont utilisées, en particulier, dans des circuits d'accord d'antenne.
L'inductance entre les bornes du primaire (L1) d'un transformateur statique à air (T) prend deux valeurs distinctes selon que le secondaire (L2) du transformateur est mis en circuit ouvert ou en court-circuit par un système de commutation fait d'éléments semi-conducteurs de puissance (K1, K2, D1, D2).
Application, en particulier, dans les circuits de couplage d'antennes (Ca, La, Ra) pour station VLF travaillant en émission par sauts de fréquence avec des antennes très sélectives.

摘要翻译： 特别是在天线调谐电路中使用高电流的可切换电感。 静态空心变压器（T）的主（L1）的端子之间的电感取决于变压器的次级（L2）是否处于开路状态或由开关系统短路而产生两个明显的值 由功率半导体元件（K1，K2，D1，D2）形成。 尤其适用于通过使用高选择性天线的跳频传输工作的VLF站的天线耦合电路（Ca，La，Ra）。

公开(公告)号：EP0262017B1

公开(公告)日：1992-04-29

申请号：EP87401961.5

申请日：1987-09-02

申请人： MERLIN GERIN

发明人： Cuman, Sylvain ,  Moreau, Philippe

IPC分类号： H02M1/08 ,  H03K17/04

CPC分类号： H02M1/34 ,  H02M1/08 ,  H02M7/5387 ,  H02M2001/348 ,  H03K17/16 ,  H03K17/601 ,  H03K17/666

公开(公告)号：EP0244054A3

公开(公告)日：1989-05-17

申请号：EP87300796.7

申请日：1987-01-29

申请人： TEKTRONIX, INC.

发明人： Agoston, Agoston

IPC分类号： H01S3/096 ,  H03K3/33 ,  H03K17/60 ,  H03K3/286

CPC分类号： H03K3/33 ,  H01S5/042 ,  H03K3/286 ,  H03K17/601

摘要： A reverse current transmitted through an initially forward biased step-recovery diode causes the step-recovery diode to switch from the forward biased state to a reverse biased state, thereby developing an abruptly rising reverse bias voltage across the step-recovery diode. The abruptly rising reverse bias voltage is applied across a series combination of a capacitor and a laser diode, connected in parallel with the step-recovery diode to force a short, abrupt forward current pulse through the laser diode, thereby causing the laser diode to emit a short optical pulse.

公开(公告)号：EP0312606A1

公开(公告)日：1989-04-26

申请号：EP88903400.5

申请日：1988-04-25

申请人： FANUC LTD

发明人： NAKAMURA, Shigeo Mansion Harimomi 7-305

IPC分类号： H03K17/56 ,  H03K17/60 ,  H03K17/687 ,  H03K17/16

CPC分类号： H03K17/567 ,  H03K17/601

摘要： The pre-drive circuit according to this invention controls the on/off operation of a transistor switching element (Q 1 ) via a pulse transformer (T) having two primary windings (P 1 , P 2 ) to which switching elements (Q 2 , Q 3 ) are connected, respectively. Feedback circuits (D 1 , D 2 ) are provided to connect signal output terminals of the switching elements (Q 2 , Q 3 ) to control terminals of the other switching elements (Q 3 , Q 2 ).

摘要翻译： 预驱动电路分别通过具有连接有开关元件（Q2，Q3）的两个初级绕组（P1，P2）的脉冲变压器（T）来控制晶体管开关元件（Q1）的导通/截止操作。 提供反馈电路（D1，D2）以将开关元件（Q2，Q3）的信号输出端子连接到其他开关元件（Q3，Q2）的控制端子。

公开(公告)号：EP0297623A2

公开(公告)日：1989-01-04

申请号：EP88110655.3

申请日：1988-07-04

申请人： BROOKTREE CORPORATION

发明人： Katzenstein, Henry S

IPC分类号： H03K17/04

CPC分类号： H03K17/603 ,  H03K17/06 ,  H03K17/601

摘要： First and second switches such as transistors are connected to a charge storage member such as a capacitance. The capacitance is charged through the first transistor from a positive supply when the transistor becomes conductive. The capacitances is discharged through the second transistor to a reference potential such as ground when the second transistor becomes conductive. The conductivities of the first and second transistors are controlled by pulses from a pulse source such as a transformer. The transformer primary produces a pulse of one polarity upon the occurrence of the leading edge of an input signal and a pulse of an opposite polarity upon the occurrence of the trailing edge of the input signal. Two secondary windings are respectively connected in opposite polarities to the bases of the first and second transistors to provide for the conductivity of only one of the transistors at any one time. The transformers saturate the conductive transistor to prolong on a limited basis the time during which the transistor remains conductive. The other one of the transistors is made instantaneously non-conductive by providing for an instantaneous discharge of the stored base charge between the base and emitter of the transistor. A constant current source is electrically in parallel with the first transistor to sustain the capacitance charge at a high level after the limited period of time in which the first transistor remains conductive. A low frequency transistor is connected in parallel with the second transistor to sustain the discharge of the capacitance after the limited period of time in which the second transistor remains conductive.

摘要翻译： 诸如晶体管的第一和第二开关连接到诸如电容的电荷存储构件。 当晶体管导通时，电容从正电源通过第一晶体管充电。 当第二晶体管导通时，电容通过第二晶体管放电到诸如接地的参考电位。 第一和第二晶体管的电导率由来自诸如变压器的脉冲源的脉冲控制。 当输入信号的后沿出现时，变压器初级产生一个极性的脉冲，在输入信号的前沿和相反极性的脉冲发生时。 两个次级绕组分别以相反的极性连接到第一和第二晶体管的基极，以在任何一个时间提供仅一个晶体管的导电性。 变压器饱和导电晶体管，以在有限的基础上延长晶体管保持导通的时间。 通过提供晶体管的基极和发射极之间存储的基极电荷的瞬时放电，使晶体管中的另一个瞬时地不导电。 恒流源与第一晶体管电并联，以在第一晶体管保持导通的有限时间段之后将电容电荷维持在高电平。 低频晶体管与第二晶体管并联连接，以在第二晶体管保持导通的有限时间段之后维持电容的放电。

公开(公告)号：EP0154608A3

公开(公告)日：1987-12-23

申请号：EP85830012

申请日：1985-01-22

申请人： Spazio, Selenia

发明人： Pedone, Alessandro

IPC分类号： H03K17/68

CPC分类号： H03K17/68 ,  H03K17/601

摘要： A solid state relay for aerospace applications utilize a transistor circuit for selectively short-circuiting and open-circuiting a secondary winding of a current transformer whose primary winding is in series with an alternating current source and an alternating current load.

公开(公告)号：EP0085112B1

公开(公告)日：1987-11-11

申请号：EP82902377.9

申请日：1982-08-07

申请人： FANUC LTD.

发明人： HATTORI, Masayuki ,  NAKAMURA, Shigeo ,  YAIRO, Osamu

IPC分类号： H03K17/04 ,  H03K17/60 ,  H02M3/335

CPC分类号： H03K17/04126 ,  H02M1/08 ,  H02M3/155 ,  H03K17/601

摘要： A drive circuit for a power switching transistor which controls a power switching transistor (QL) connected to the output terminal of a base circuit (BSC) so that it is turned on or off on the basis of signals input to a preamplifier (PAP), which circuit contains the preamplifier (PAP), the base circuit (BSC) driving the power switching transistor (QL) and a pulse transformer (PT) electromagnetically coupling the preamplifier (PAP) to the base circuit (BSC), in which the preamplifier (PAP) is connected in series with the primary coil of the transformer (PT) and a low impedance circuit is provided which forms a current loop with the primary coil with respect to the flyback voltage generated in the secondary coil of the transformer (PT).

公开(公告)号：EP0167431B1

公开(公告)日：1987-09-02

申请号：EP85401094.9

申请日：1985-06-04

申请人： THOMSON-CSF

发明人： Rischmuller, Klaus

IPC分类号： H02M1/08 ,  H03K17/60

CPC分类号： H02M3/155 ,  H02M1/08 ,  H03K17/601

公开(公告)号：EP0091332B1

公开(公告)日：1986-07-23

申请号：EP83400513.4

申请日：1983-03-14

申请人： JEUMONT-SCHNEIDER Société anonyme dite:

发明人： Camus, Etienne

IPC分类号： H03K17/28 ,  H03K17/60

CPC分类号： H03K17/28 ,  H03K17/601

公开(公告)号：EP0093018A3

公开(公告)日：1985-07-10

申请号：EP83302381

申请日：1983-04-27

申请人： FANUC LTD

发明人： Hidetsugu, Komiya ,  Michiya, Inoue

IPC分类号： H03K17/60

CPC分类号： H03K17/601 ,  Y10T307/944

摘要： A contactless relay wherein the application of an A.C. signal from an oscillator (1) to the primary winding of a transformer (3) is controlled by a command input (IN), and the A.C. signal obtained from the secondary winding of the transformer (3) is rectified into a D.C. signal by a rectifier circuit (4). The D.C. signal drives a transistor switching element (6) for switching action. The switching element (6) includes a single bipolar transistor (Figure 2), or a pair of bipolar transistors (6a, 6b) which can be connected in parallel to increase the current-carrying capacity of the relay. The output terminals (out 1, out 2) of the relay can be rendered non-polar by constructing the relay of two bipolar transistors (6a, 6b) having commonly connected emitters and commonly connected bases (Figure 3).

摘要翻译： 一种非接触式继电器，其中通过指令输入控制对变压器初级绕组的交流信号的应用，并且由变压器的次级绕组获得的交流信号由整流电路整流为直流信号。 直流信号驱动用于切换动作的晶体管开关元件。 开关元件包括单个双极晶体管或可并联连接的一对双极晶体管，以增加继电器的载流能力。 通过构造具有共同连接的发射极和共同连接的基极的两个双极晶体管的继电器，继电器的输出端子可以变成非极性。