公开(公告)号：US5428497A

公开(公告)日：1995-06-27

申请号：US39402

申请日：1993-04-28

申请人： Fujio Ono

发明人： Fujio Ono

IPC分类号： H01F7/18 ,  H02P7/00 ,  H03K17/66 ,  H02P1/22

CPC分类号： H01F7/18 ,  H02P7/04 ,  H03K17/663

摘要： A device for driving a rotary solenoid in which the two transistors on one side of an H-bridge circuit that drives the rotary solenoid are not simultaneously rendered conductive in order to prevent the burning. An instruction signal from the CPU is made up of a first instruction signal which instructs the rotation in either the forward direction or the reverse direction and a second instruction signal which instructs either the rotation or the holding. Depending upon the combinations of the first and second instruction signals, the output of the logic circuit renders the first to fourth transistors of the H-bridge circuit conductive or non-conductive.

摘要翻译： PCT No.PCT / JP92 / 01104 Sec。 371日期：1993年4月28日 102（e）日期1993年4月28日PCT提交1992年8月28日PCT公布。 公开号WO93 / 0552400 日期1993年3月18日。一种用于驱动旋转螺线管的装置，其中驱动旋转螺线管的H桥电路一侧的两个晶体管不会同时导通，以防止燃烧。 来自CPU的指令信号由指示正向或反向旋转的第一指令信号和指示旋转或保持的第二指令信号组成。 根据第一和第二指令信号的组合，逻辑电路的输出使H桥电路的第一至第四晶体管导通或不导电。

公开(公告)号：US4490655A

公开(公告)日：1984-12-25

申请号：US425012

申请日：1982-09-27

申请人： Alan S. Feldman

发明人： Alan S. Feldman

IPC分类号： H02P7/288 ,  H02P7/00 ,  H03K17/66 ,  H02P1/22

CPC分类号： H03K17/663 ,  H02P7/04

摘要： A bi-directional driver system for an electrical load operable in response to two independent logic command signals provides a means for selecting the direction of current flow in the load when driven by the external command. A bridge circuit employs inputs to dual transistor switches operating in the saturated mode in series with the electrical load, cooperating with common emitter transistor linear amplifiers and diodes, and biased by the input logic signal so as to drive the load current in a predetermined direction. The circuit provides protection from undesired power supply current surges when logic command signals are applied to both inputs, and from transients due to failure of a saturated transistor switch at one input to cease conducting before the application of a command signal to the second input. Embodiments for inductive loads and annunciator lamps are described.

摘要翻译： 用于响应于两个独立逻辑命令信号可操作的电负载的双向驱动器系统提供了用于在由外部命令驱动时选择负载中的电流流动的方向的装置。 桥接电路采用与饱和模式工作的双晶体管开关的输入，与电负载串联，与公共发射极晶体管线性放大器和二极管配合，并由输入逻辑信号偏置，以便沿预定方向驱动负载电流。 当逻辑指令信号施加到两个输入时，电路提供保护以防止不期望的电源电流浪涌，以及由于在一个输入处的饱和晶体管开关故障而在向第二输入施加命令信号之前停止导通的瞬变。 描述感性负载和报警灯的实施例。

公开(公告)号：US4475151A

公开(公告)日：1984-10-02

申请号：US439056

申请日：1982-11-04

申请人： Harald Philipp

发明人： Harald Philipp

IPC分类号： H03K5/02 ,  H03K17/64 ,  H03K17/66 ,  H02M7/02

CPC分类号： H03K17/663 ,  H03K17/64 ,  H03K5/02

摘要： A switching current supply circuit, in response to a control voltage, controls the current flowing in an inductive load. Included is a pair of terminals adapted for connection to such a load and a bridge network connected to the terminals for producing a voltage indicative of the current flowing through the load. A comparator switches an output voltage between two distinct values in response to a differential input voltage having components derived, at least in part from the control voltage and the load-current-indicating voltage. Finally, a polarity-changeable voltage source, in response to the output voltage, applies, selectively and reversibly, known voltages of opposite polarity through the bridge network to the load-connectable terminals. These known voltages effect a change in load current level appropriate to decrease the absolute value of the above-mentioned input voltage. Optionally, this circuit also includes an adjustable hysteresis circuit connected to the comparator for delaying switching therein by a known period of time. The circuit may also be constructed to minimize common mode voltage.

摘要翻译： 开关电流供应电路响应于控制电压来控制在感性负载中流动的电流。 包括适于连接到这种负载的一对端子和连接到端子的桥接网络，用于产生指示流过负载的电流的电压。 响应于具有至少部分地从控制电压和负载电流指示电压导出的分量的差分输入电压，比较器将输出电压切换到两个不同值之间。 最后，响应于输出电压，极性可变的电压源通过桥接网络向可负载连接的端子选择性地和可逆地施加具有相反极性的已知电压。 这些已知的电压影响适于降低上述输入电压的绝对值的负载电流水平的变化。 可选地，该电路还包括连接到比较器的可调迟滞电路，用于将其中的切换延迟已知的时间段。 电路也可以被构造成使共模电压最小化。

公开(公告)号：US4002946A

公开(公告)日：1977-01-11

申请号：US624631

申请日：1975-10-21

申请人： Robert Chao-Chuin Liang

发明人： Robert Chao-Chuin Liang

IPC分类号： G09G3/28 ,  G09G3/288 ,  H01L27/02 ,  H03K17/66 ,  H05B41/36 ,  H03K17/60

CPC分类号： H03K17/663 ,  G09G3/296 ,  H01L27/0207

摘要： The circuit and structure of a high voltage switch with latchup is disclosed for a latching driver used in a gas panel display. The driver circuit functions as a high voltage, single pole, double throw switch with memory. A plurality of the latching driver circuits may be integrated on an LSI chip. Each position lighted on a gas panel display requires two latching driver circuits which are operated in a complementary fashion by suitable logic. The latching driver circuit is comprised of a complementary transistor, high voltage output switch which is controlled by a positive feedback silicon controlled switch which serves as the latching mechanism. The structure of the latching driver is of an advanced integrated design employing a plurality of lateral complementary transistors in two isolation regions.

摘要翻译： 公开了一种用于气体面板显示器中的闭锁驱动器的具有闩锁的高压开关的电路和结构。 驱动电路用作具有存储器的高电压，单极，双掷开关。 多个锁存驱动器电路可以集成在LSI芯片上。 在气体面板显示器上点亮的每个位置都需要两个锁存驱动电路，这些电路通过适当的逻辑以互补的方式运行。 锁存驱动器电路由互补晶体管，高电压输出开关组成，其由用作闭锁机构的正反馈硅控制开关控制。 锁存驱动器的结构是采用在两个隔离区域中的多个横向互补晶体管的先进集成设计。

公开(公告)号：US3602829A

公开(公告)日：1971-08-31

申请号：US3602829D

申请日：1970-01-16

申请人： US ARMY

发明人： MANSFIELD GERALD R

IPC分类号： H03F3/21 ,  H03K17/66 ,  H03F5/00

CPC分类号： H03K17/663 ,  H03F3/21

摘要： A high gain amplifier and feedback arrangement utilizing a class B power stage for current driving a single coil wherein the precession coil of a spinning magnet gyroscope is controlled by sending a precise current through the coil. A first operational amplifier with differential input terminals generates either a positive or negative output. A positive output drives one side of the class B output stage to control current flow in one direction through the load. A negative output drives the other side of the class B output stage by way of a second operational amplifier connected as an inverter to control current in the inverse direction through the load. The load current is arranged to provide feedback to the first operational amplifier so that the load current is a replica of the input for both directions of current flow in the load. An output stage switching transistor is conducting or cut off when the corresponding class B stage side conducts or is cut off. The two output stage switching transistors are controlled from a switching differential pair of transistors which in turn is controlled by the output of the first operational amplifier. Switching of all switching transistors and circuits occurs when the input signal passes through zero at which time the load current is zero.

公开(公告)号：US3400304A

公开(公告)日：1968-09-03

申请号：US53004866

申请日：1966-02-25

申请人： RAYTHEON CO

发明人： ZIEGLER KENNETH L

IPC分类号： H03K17/66

CPC分类号： H03K17/663

公开(公告)号：US3237125A

公开(公告)日：1966-02-22

申请号：US23747762

申请日：1962-11-14

申请人： HONEYWELL INC

发明人： BUDD JR JOHN M

IPC分类号： H03K3/282 ,  H03K3/45 ,  H03K17/66

CPC分类号： H03K3/45 ,  H03K3/2826 ,  H03K17/663

公开(公告)号：US08080959B2

公开(公告)日：2011-12-20

申请号：US12419537

申请日：2009-04-07

申请人： Hirotoshi Fukuda ,  Junichi Iida

发明人： Hirotoshi Fukuda ,  Junichi Iida

IPC分类号： H02P6/00

CPC分类号： H03K17/663 ,  H02P7/04 ,  H03K17/08146

摘要： A motor driving circuit includes at least one set of switching elements, each set of switching elements being two switching elements connected in series to each other, and a diode connected in parallel with one of the two switching elements connected on a power source side, a terminal of a motor to be driven being connected to a junction point between the two switching elements. A voltage transfer element is provided for transferring, from the junction point between the two switching elements, a voltage of a counter electromotive force generated at the motor, to an input end of the other of the two switching elements connected on a ground side.

摘要翻译： 电动机驱动电路包括至少一组开关元件，每组开关元件是彼此串联连接的两个开关元件，以及连接在电源侧的两个开关元件中的一个并联连接的二极管， 要驱动的电动机的端子连接到两个开关元件之间的接合点。 提供电压传递元件，用于从两个开关元件之间的接合点将在电动机处产生的反电动势的电压传送到在接地侧连接的两个开关元件中的另一个的输入端。

公开(公告)号：US07110198B1

公开(公告)日：2006-09-19

申请号：US10816394

申请日：2004-04-01

申请人： Farbod Aram ,  Pantas Sutardja

发明人： Farbod Aram ,  Pantas Sutardja

IPC分类号： G11B5/09 ,  G11B5/02

CPC分类号： G11B5/02 ,  G11B2005/0013 ,  H03K17/04123 ,  H03K17/0414 ,  H03K17/663

摘要： A write driver system comprises a control circuit that includes first switching devices and that generates gate drive signals. A write driver circuit includes second switching devices that are controlled by the gate drive signals from the control circuit. The second switching devices have higher voltage thresholds than the first switching devices. The second switching devices have slower switching times than the first switching devices.

摘要翻译： 写驱动器系统包括包括第一开关器件并且产生栅极驱动信号的控制电路。 写驱动器电路包括由来自控制电路的栅极驱动信号控制的第二开关器件。 第二开关器件具有比第一开关器件更高的电压阈值。 第二开关器件的开关时间比第一开关器件慢。

公开(公告)号：US07006313B2

公开(公告)日：2006-02-28

申请号：US10179561

申请日：2002-06-25

申请人： Tuan V. Ngo

发明人： Tuan V. Ngo

IPC分类号： G11B5/09

CPC分类号： G11B5/022 ,  G11B5/012 ,  G11B5/02 ,  G11B2005/001 ,  G11B2005/0013 ,  H03K17/663

摘要： A write driver 100, 200, 300 is implemented to provide near-ground common mode output voltages to produce a more symmetrical head voltage swing (i.e. ±0.4V from ground to ±5V supply voltages). These features help to reduce the effects of common mode impedance associated with the interconnection to the disk drive head to improve overall performance. Lower jitter at high data rates can be achieved when compared to prior art techniques for implementing current mode write drivers. Further, the matched impedance between the write driver 100 and the interconnection 106 eliminates unwanted reflections. ECL level voltage swings (200–500 mV) have replaced more conventional CMOS level voltage swings (5V) to further reduce overall power dissipation associated with the write driver. The small ECL level switching further maintains constant power dissipation with changes in operating frequency and results in less NTLS effects due to quieter supplies.