公开(公告)号：US20130049819A1

公开(公告)日：2013-02-28

申请号：US13522246

申请日：2011-01-13

申请人： Sven Hartmann ,  Harald Schueler ,  Stefan Tumback

发明人： Sven Hartmann ,  Harald Schueler ,  Stefan Tumback

IPC分类号： H03K17/695

CPC分类号： F02N11/087 ,  F02N11/0851 ,  F02N15/067 ,  H01H47/32 ,  H01H50/44

摘要： An electrical component having a primary winding, a first field-effect transistor, configured as a switch of the primary winding, for switching the primary winding, a quench winding for quenching the inductive load of the primary winding when switching off the primary winding, and a second field-effect transistor, configured as a switch of the quench winding, for switching the quench winding. In the process, the first field-effect transistor is operated in linear operation and the second field-effect transistor is operated in linear operation or in a clock-pulsed operation between the linear operation and a switched-off state during a switching-off process of the quench winding.

摘要翻译： 具有初级绕组的电气部件，被配置为初级绕组的开关的第一场效应晶体管，用于切换初级绕组，用于在关闭初级绕组时使初级绕组的感性负载淬火的骤冷绕组;以及 第二场效应晶体管，被配置为用于切换骤冷绕组的骤冷绕组的开关。 在该过程中，第一场效应晶体管在线性操作中工作，并且第二场效应晶体管在关断过程期间在线性操作或线性操作和关断状态之间的时钟脉冲操作中操作 的淬火绕组。

公开(公告)号：US20050231177A1

公开(公告)日：2005-10-20

申请号：US11100407

申请日：2005-04-07

申请人： Koji Tateno ,  Ryotaro Kudo ,  Shin Chiba ,  Kyoichi Hosokawa ,  Toshio Nagasawa

发明人： Koji Tateno ,  Ryotaro Kudo ,  Shin Chiba ,  Kyoichi Hosokawa ,  Toshio Nagasawa

IPC分类号： G01R19/00 ,  G05F1/613 ,  H02M3/155 ,  H02M3/158 ,  H03K17/08 ,  H03K17/687 ,  H03K17/695

CPC分类号： H02M3/1588 ,  H01L2224/48137 ,  H01L2224/48247 ,  H02M2001/0009 ,  Y02B70/1466

摘要： In a driver circuit constructing a switching power supply device that switches power transistors passing a current through a coil by a PWM mode, a current detection transistor, which is smaller in size than the low-potential side power transistor and a current detection resistor are provided in parallel to the low-potential side power transistor. The same control voltage as the power transistor is applied to the control terminal of the current detection transistor. An operational amplifier is formed, that has the potential of the connection node between the current detection transistor and the current detection resistor applied to its inverse input terminal and a feedback loop, so as to make a pair of input terminals of the operational amplifier be at the same potential. A signal produced by the current detection resistor is thus outputted as a current detection signal.

摘要翻译： 在构成开关电源装置的驱动电路中，通过PWM模式切换通过线圈的电流的开关电源装置，设置尺寸小于低电位侧功率晶体管的电流检测晶体管和电流检测电阻器 与低电位侧功率晶体管并联。 与功率晶体管相同的控制电压施加到电流检测晶体管的控制端。 形成运算放大器，其具有电流检测晶体管和施加到其反相输入端的电流检测电阻之间的连接节点的电位和反馈环路，以使运算放大器的一对输入端子处于 同样的潜力。 因此，由电流检测电阻器产生的信号作为电流检测信号被输出。

公开(公告)号：US20050140314A1

公开(公告)日：2005-06-30

申请号：US11018826

申请日：2004-12-21

申请人： Kenichi Hosaka ,  Tadao Mandai

发明人： Kenichi Hosaka ,  Tadao Mandai

IPC分类号： H05B41/24 ,  G05F3/16 ,  H03K17/16 ,  H03K17/695 ,  H05B41/282 ,  H05B41/285 ,  H05B37/02

CPC分类号： H05B41/2825 ,  H05B41/2856

摘要： A current control circuit controls a current from a current drawing circuit to which a primary coil of a transformer is connected. A first N channel transistor has a source connected to the current drawing terminal and has a body diode that directs a current from the source to a drain. A second N channel transistor has a drain connected to the drain of the first N channel transistor and a source connected to a ground. The second N channel transistor has a body diode that directs a current from the source to the drain. The first and second N channel transistors are turned on to direct a current from the current drawing terminal to the ground via the first and second N channel transistors. The first and second N channel transistors are turned off to stop the current from the current drawing terminal. Further, the body diode of the first N channel transistor inhibits current flowing from the ground to the primary coil of the transformer.

摘要翻译： 电流控制电路控制来自变压器的初级线圈所连接的电流牵引电路的电流。 第一N沟道晶体管具有连接到引流端子的源极，并且具有引导电流从源极到漏极的体二极管。 第二N沟道晶体管具有连接到第一N沟道晶体管的漏极的漏极和连接到地的源极。 第二N沟道晶体管具有将电流从源极引导到漏极的体二极管。 第一和第二N沟道晶体管被导通以经由第一和第二N沟道晶体管将电流从引线端引导到地。 关闭第一和第二N沟道晶体管，以阻止来自当前绘图终端的电流。 此外，第一N沟道晶体管的体二极管抑制从接地到变压器的初级线圈的电流。

公开(公告)号：US20050046280A1

公开(公告)日：2005-03-03

申请号：US10926993

申请日：2004-08-27

申请人： Toru Itabashi ,  Mitsuhiro Kanayama

发明人： Toru Itabashi ,  Mitsuhiro Kanayama

IPC分类号： F02D45/00 ,  F16H61/00 ,  H03K17/06 ,  H03K17/16 ,  H03K17/693 ,  H03K17/695 ,  H02H9/08 ,  H02B1/24

CPC分类号： H03K17/162 ,  H03K17/063 ,  H03K17/693 ,  Y10T307/865

摘要： An ECU has a main IC and at least one auxiliary IC, with at least the auxiliary IC driving one or more MOS FETs to control supplying of power to respective electrical loads, e.g., in a vehicle. A stepped-up voltage, higher than the circuit power source voltage, is generated within the main IC and supplied to each auxiliary IC, for driving gate electrodes of the MOS FETs. Electrical noise produced by operation of a voltage step-up circuit in the main IC is effectively suppressed by elements that are coupled only to a power source terminal of the main IC alone.

摘要翻译： ECU具有主IC和至少一个辅助IC，至少辅助IC驱动一个或多个MOS FET以控制向例如车辆中各个电负载的供电。 在主IC内产生高于电路电源电压的升压电压，并提供给每个辅助IC，用于驱动MOS FET的栅电极。 通过仅在主IC的电源端子耦合的元件，能够有效地抑制主IC内的升压电路的动作产生的电噪声。

公开(公告)号：US5801458A

公开(公告)日：1998-09-01

申请号：US640779

申请日：1996-07-23

申请人： Walter Marks

发明人： Walter Marks

IPC分类号： H03K17/04 ,  H03K17/00 ,  H03K17/042 ,  H03K17/16 ,  H03K17/695 ,  H01H47/22

CPC分类号： H03K17/168 ,  H03K17/04206 ,  H03K17/166 ,  H03K2217/0036 ,  Y10T307/826 ,  Y10T307/865

摘要： A control circuit for turning off or on direct current flowing through an inductive load (12) to ground uses a semiconductor switch (11), for example a MOSFET, having a first input terminal (D), a control terminal (G), and a second output terminal (S) to the load. A semiconductor freewheel diode (16) is coupled between the switch second terminal and ground, in parallel with the load. The freewheel diode has a current-conducting state and a current non-conducting state. A switching-off current source (19) is coupled between the second terminal and the control terminal; it reduces the magnitude of the switching control current (.+-.I.sub.GS) flowing into the control terminal of the MOSFET, as a function of voltage at the second terminal of the switch and the input to the freewheel diode. A minimum value (.+-.II.sub.GSmin) of the switching control current is reached when the voltage at the second terminal of the switch reaches ground potential. The current-increase or current-decrease time intervals are influenced by the current sources 18 and 19 in response to the freewheel voltage causing rapid switching without spikes and power loss.

摘要翻译： PCT No.PCT / EP95 / 01371 Sec。 371日期：1996年7月23日 102（e）日期1996年7月23日PCT提交1995年4月12日PCT公布。 WO95 / 28767 PCT出版物 日期1995年10月26日用于使通过感性负载（12）流到地的直流电流的控制电路使用具有第一输入端（D）的半导体开关（11），例如MOSFET，控制端 （G）和第二输出端子（S）。 半导体续流二极管（16）与负载并联连接在开关第二端子和地之间。 续流二极管具有导通状态和电流不导通状态。 关闭电流源（19）耦合在第二端子和控制端子之间; 它降低了流入MOSFET的控制端的开关控制电流（+/- IGS）的大小，这是开关的第二端的电压和续流二极管的输入的函数。 当开关的第二端的电压达到地电位时，达到开关控制电流的最小值（+/- IIGSmin）。 电流增加或电流减小时间间隔受电流源18和19的影响，响应于续流电压导致快速切换而没有尖峰和功率损耗。

公开(公告)号：US5760619A

公开(公告)日：1998-06-02

申请号：US703355

申请日：1996-08-26

申请人： Syuuji Yamaguchi

发明人： Syuuji Yamaguchi

IPC分类号： H05B41/24 ,  H01L41/04 ,  H02M7/48 ,  H02M7/537 ,  H03K17/16 ,  H03K17/687 ,  H03K17/689 ,  H03K17/695 ,  H03B1/00

CPC分类号： H03K17/6871 ,  H01L41/044 ,  H03K17/6895

摘要： A piezoelectric transformer driver circuit can employ low voltage transistors. By alternately turning ON and OFF switching transistors b 3 and 4 depending upon gate signals GA and GB, a primary side of a piezoelectric transformer 7 is driven, and a secondary side is connected to a load 8. Inductors 1 and 2 are provided corresponding to transistors 3 and 4 for supplying a power source to corresponding transistors. Capacitors 10 and 11 respectively connected to one of the electrode of the inductors 1 and 2, respectively. The transistor 12 is turned ON upon completion of ON/OFF operation of the transistors 3 and 4, and the capacitors 10 and 11 are situated the other electrode at the ground voltage. Upon completion of ON/OFF operation of the transistor, a surge voltage to be generated by the inductors 1 and 2 can be restricted to permit use of the low voltage transistor. Thus, the overall circuit can be compact and low cost.

摘要翻译： 压电变压器驱动电路可采用低压晶体管。 通过根据门信号GA和GB交替地接通和断开开关晶体管b 3和4，压电变压器7的初级侧被驱动，次级侧连接到负载8.电感器1和2被设置成对应于 用于向对应的晶体管提供电源的晶体管3和4。 电容器10和11分别分别连接到电感器1和2的一个电极。 在晶体管3和4的ON / OFF操作完成时，晶体管12导通，并且电容器10和11位于另一个电极处于接地电压。 在晶体管的ON / OFF操作完成时，可以限制由电感器1和2产生的浪涌电压以允许使用低电压晶体管。 因此，整个电路可以紧凑且成本低。

公开(公告)号：US5623216A

公开(公告)日：1997-04-22

申请号：US425000

申请日：1995-04-19

申请人： Luigi Penza ,  Calogero Timineri

发明人： Luigi Penza ,  Calogero Timineri

IPC分类号： H03K17/16 ,  H03K17/687 ,  H03K17/695 ,  H03K19/003 ,  H03K19/0175

CPC分类号： H03K19/00361

摘要： An output buffer current slew rate control integrated circuit includes an output buffer having first, MOS-type transistor means for supplying a current to a load impedance. Current generator means generate a constant current and are activated upon switching of an input signal of the output buffer. The current generator means drive a control input of the first transistor means for driving the first transistor means with a driving voltage having a slew rate determined by the constant current.

摘要翻译： 输出缓冲器电流转换速率控制集成电路包括具有第一MOS晶体管装置的输出缓冲器，用于向负载阻抗提供电流。 电流发生器意味着产生恒定电流并且在切换输出缓冲器的输入信号时被激活。 电流发生器装置驱动第一晶体管装置的控制输入，用于以具有由恒定电流确定的压摆率的驱动电压来驱动第一晶体管装置。

公开(公告)号：US5543632A

公开(公告)日：1996-08-06

申请号：US782833

申请日：1991-10-24

申请人： Donald J. Ashley

发明人： Donald J. Ashley

IPC分类号： H01L23/58 ,  H01L21/822 ,  H01L27/02 ,  H01L27/04 ,  H03K17/08 ,  H03K17/14 ,  H03K17/695

CPC分类号： H03K17/145 ,  H01L27/0248 ,  H01L2924/0002

摘要： A load transistor is integrated into a region of a semiconductor layer. The load transistor has an on-resistance which passes the load current. One or more drain pilot transistors are also integrated into the same region of the semiconductor layer such that the load transistor substantially surrounds the pilot transistor(s). Consequently, as the load transistor heats-up due to the load current, the heat from the load transistor conducts to the pilot transistor(s) and heats the pilot transistor(s) to substantially the same temperature as the load transistor. If more than one drain pilot transistor are provided, then they are located adjacent to each other to ensure that all the pilot transistors exhibit substantially the same temperature as each other. The pilot transistor(s) are scaled models of the load transistor such that an on-resistance of each of the pilot transistors varies proportionally to the on-resistance of the load transistor with temperature. Current sources supply fixed currents to the on-resistances of the respective pilot transistors. Consequently, voltage(s) developed across the pilot transistor(s) are accurate references with which to set a drive voltage for the load current or an overcurrent or undercurrent detector, which reference voltages are temperature compensated.

摘要翻译： 负载晶体管被集成到半导体层的区域中。 负载晶体管具有通过负载电流的导通电阻。 一个或多个漏极引导晶体管也被集成到半导体层的相同区域中，使得负载晶体管基本上围绕导引晶体管。 因此，当负载晶体管由于负载电流而加热时，来自负载晶体管的热量传导到引导晶体管，并将导引晶体管加热到与负载晶体管基本相同的温度。 如果提供多于一个的漏极引导晶体管，则它们彼此相邻地定位，以确保所有的导频晶体管显示出彼此基本上相同的温度。 引导晶体管是负载晶体管的缩放模型，使得每个引导晶体管的导通电阻与负载晶体管的导通电阻随温度成比例地变化。 电流源为相应导频晶体管的导通电阻提供固定电流。 因此，引导晶体管两端产生的电压是准确的参考值，用于设置负载电流的驱动电压或过电流或欠电流检测器，哪些参考电压是温度补偿的。

公开(公告)号：US5475329A

公开(公告)日：1995-12-12

申请号：US176815

申请日：1994-01-04

申请人： Steven C. Jones ,  Wayne T. Chen

发明人： Steven C. Jones ,  Wayne T. Chen

IPC分类号： H03K17/04 ,  H03K17/042 ,  H03K17/082 ,  H03K17/695 ,  H03K3/00 ,  H03K5/08

CPC分类号： H03K17/04206 ,  H03K17/0822

摘要： A turn-off circuit is disclosed that includes a turn-off device (14) having a first current path connected to a first node, a second current path connected to a second node and an input. A control circuit (16) has an output connected to the input of the turn-off device (14) and has an input. A hold-off device (18) has an output connected to the first node and an input. Together, the turn-off device (14), the control circuit (16) and the hold-off device (18) comprise a turn-off circuit (20). A control signal CONTROL 2 is connected to the input of the control circuit (16), and a control signal CONTROL 3 is connected to the input of the hold-off device (18).

摘要翻译： 公开了一种关断电路，其包括具有连接到第一节点的第一电流路径，连接到第二节点的第二电流路径和输入的关断装置（14）。 控制电路（16）具有连接到关断装置（14）的输入并具有输入的输出。 保持装置（18）具有连接到第一节点和输入的输出。 关断装置（14），控制电路（16）和保持装置（18）一起包括关断电路（20）。 控制信号CONTROL2连接到控制电路（16）的输入，并且控制信号CONTROL3连接到保持装置（18）的输入端。

公开(公告)号：US5422587A

公开(公告)日：1995-06-06

申请号：US180102

申请日：1994-01-11

申请人： Francesco Pulvirenti ,  Roberto Gariboldi

发明人： Francesco Pulvirenti ,  Roberto Gariboldi

IPC分类号： H03K17/16 ,  H03K17/0412 ,  H03K17/0414 ,  H03K17/687 ,  H03K17/695

CPC分类号： H03K17/0414 ,  H03K17/04123 ,  H03K17/687

摘要： A drive circuit for a field-effect transistor is disclosed, the field-effect transistor having a drain terminal connected to the positive pole of a voltage supply and a source terminal connected to a load. The drive circuit comprises a first transistor connected between the gate terminal of the field-effect transistor and the negative pole of the voltage supply for turning off the field-effect transistor. The first transistor is driven by an operational amplifier which has inverting and non-inverting teminals connected to the gate and source terminals of the field-effect transistor, respectively. Switches alternatively intercouple the field-effect transistor to either another voltage supply or the first transistor.

摘要翻译： 公开了一种用于场效应晶体管的驱动电路，场效应晶体管具有连接到电压源的正极的漏极端子和连接到负载的源极端子。 驱动电路包括连接在场效应晶体管的栅极端子和用于截止场效应晶体管的电压源的负极之间的第一晶体管。 第一晶体管由运算放大器驱动，运算放大器分别具有连接到场效应晶体管的栅极和源极端子的反相和非反相温度。 开关将场效应晶体管交替地耦合到另一个电压源或第一晶体管。