Voltage level detector for power amplifier protection control
    2.
    发明授权
    Voltage level detector for power amplifier protection control 失效
    用于功率放大器保护控制的电压电平检测器

    公开(公告)号:US07167055B2

    公开(公告)日:2007-01-23

    申请号:US11331192

    申请日:2006-01-13

    IPC分类号: H03F1/52

    CPC分类号: H03F1/52 H03F3/181 H03F3/72

    摘要: A voltage level detector (8) which activates itself by monitoring the voltage level (VSTB) at a standby pin (5) during power-up of an audio power amplifier (10), and can detect fault conditions of an output block (2), such as a short to ground at an output terminal (3), in contrast to conventional protection circuits that can operate only after power-up.

    摘要翻译: 一种电压电平检测器(8),其通过在音频功率放大器(10)上电期间监视备用引脚(5)处的电压电平(V SUB STB)而自身启动,并且可以检测故障 与仅在上电后才能操作的常规保护电路相比,输出端子(2)的输出块(2)的条件,例如输出端子(3)处的接地短路。

    Amplifier circuit with multiple power supplies
    3.
    发明授权
    Amplifier circuit with multiple power supplies 失效
    具有多个电源的放大器电路

    公开(公告)号:US07439801B2

    公开(公告)日:2008-10-21

    申请号:US11536221

    申请日:2006-09-28

    IPC分类号: H03F3/38

    CPC分类号: H03F3/217

    摘要: An amplifier circuit that uses multiple power supplies includes a class D amplifier circuit, input bias generator and feedback network. By creating a voltage using the input bias generator at the non inverting terminal of the integrator, the inverting terminal of the integrator will follow the same voltage as the non inverting terminal. The offset voltage between the input signal DC bias and the input DC bias of the integrator will create an offset current flowing through the feedback resistors, thus resulting in the desired output DC bias.

    摘要翻译: 使用多个电源的放大器电路包括D类放大器电路,输入偏置发生器和反馈网络。 通过使用积分器的非反相端子处的输入偏置发生器产生电压,积分器的反相端子将遵循与非反相端子相同的电压。 输入信号DC偏置和积分器的输入直流偏置之间的偏移电压将产生流过反馈电阻的偏移电流,从而产生所需的输出直流偏置。

    Voltage level detector for power amplifier protection control
    4.
    发明申请
    Voltage level detector for power amplifier protection control 失效
    用于功率放大器保护控制的电压电平检测器

    公开(公告)号:US20060119434A1

    公开(公告)日:2006-06-08

    申请号:US11331192

    申请日:2006-01-13

    IPC分类号: H03F1/52

    CPC分类号: H03F1/52 H03F3/181 H03F3/72

    摘要: A voltage level detector (8) activates itself through monitoring the voltage level (VSTB) at a standby pin (5) during power-up of an audio power amplifier (10), and can detect fault conditions of an output block (2), such as a short to ground at an output terminal (3), in contrast to conventional protection circuits that can operate only after power-up. In a voltage level detector (8), a second short-to-ground detection block (81) monitors the voltage levels (VSTB and Vout) at the standby pin (5) and the output terminal (3) during power-up. Upon detection of the voltage level (VSTB) reaching a first threshold level (Vth1) and a short to ground at the output terminal (3), the second short-to-ground detection block (81) activates a cutoff signal generating block (83). The recovery block (82) monitors the voltage level (VSTB) at the standby pin (5) during power-up. Upon detection of the voltage level (VSTB) reaching a second threshold level (Vth2>Vth1), the recovery block (82) deactivates the cutoff signal generating block (83). The cutoff signal generating block (83) sends a cutoff signal (Sc) to a protection switch block (71) as a request for turn-off of protection switches (7A) on activation, and on the other hand, terminates the sending of the cutoff signal (Sc) on deactivation.

    摘要翻译: 电压电平检测器(8)通过在音频功率放大器(10)的上电期间监视备用引脚(5)处的电压电平(V SUB STB)而自身激活,并且可以检测故障条件 (3)的输出块(2),例如与地对地短路,与只能在上电后能够操作的常规保护电路相反。 在电压电平检测器(8)中,第二短路检测块(81)监视备用引脚处的电压电平(V SUB STB和V OUT OUT) (5)和输出端子(3)。 当检测到在输出端(3)处达到第一阈值电平(V SUB)和电压接地短路的电压电平(V SUB STB)时, 地面检测块(81)激活截止信号生成块(83)。 恢复块(82)在上电期间监视备用引脚(5)处的电压电平(V SUB STB)。 在检测到达到第二阈值电平(V SUB th2)的电压电平(V SUB STB)时,恢复块(82) 停用截止信号生成块(83)。 截止信号生成块(83)在保护开关(7A)的激活请求时,向保护开关块(71)发送切断信号(Sc),另一方面,终止发送 停用信号(Sc)。

    Brake device of linear moving body
    5.
    发明授权
    Brake device of linear moving body 失效
    线性移动体的制动装置

    公开(公告)号:US5823300A

    公开(公告)日:1998-10-20

    申请号:US702698

    申请日:1996-09-12

    申请人: Yasuo Higuchi

    发明人: Yasuo Higuchi

    摘要: In a brake device of a linear moving body, a brake member is provided with a hole and a rod is fitted to the hole in clearance fit, and the brake member is moved slantwise and rotational moment is produced in the brake member thereby brake is applied to the rod in relative motion. The brake member is arranged movable slantwise using position as fulcrum remote from the axial center of the rod, and notched portions having width smaller than diameter of the hole are formed at symmetric positions within the hole along a plane including the fulcrum and the axial center of the rod. In this brake device, rotational force (rotational moment) is supplied to the brake member, and drag is produced at a fitting surface within the hole and frictional force due to the drag is made brake force and frictional force due to the drag of the fitting surface is made reaction force of the rotational force. Thereby the reaction force in parallel to the rotational moment is scarcely produced, and the reaction force orthogonal to the rotational moment is produced largely. Since the reaction force orthogonal to the rotational moment increases with the thrust, large drag is produced from small rotational moment and strong brake force is generated to the rod and the brake device and the rod are locked.

    摘要翻译: PCT No.PCT / JP96 / 00121 Sec。 371日期:1996年9月12日 102(e)1996年9月12日PCT PCT 1996年1月24日PCT公布。 第WO96 / 23979号公报 日期:1996年8月8日在直线移动体的制动装置中,制动部件设有孔,并且在间隙配合中将杆装配到孔中,制动部件倾斜移动,制动器产生转动力矩 因此制动器相对运动地施加到杆上。 所述制动部件以从远离所述杆的轴心的方式作为支点的位置倾斜地配置,在所述孔的对称位置,沿着包括所述支点和所述轴的中心的平面 杆 在该制动装置中,向制动部件供给旋转力(旋转力矩),并且在孔内的配合面产生阻力,由于拖曳而产生的摩擦力被制动力和由于配件的阻力引起的摩擦力 表面产生旋转力的反作用力。 从而几乎不产生与旋转力矩平行的反作用力,并且产生与旋转力矩正交的反作用力。 由于与旋转力矩正交的反作用力随着推力而增加,因此从小的旋转力矩产生大的阻力,并且对杆产生强大的制动力,并且制动装置和杆被锁定。

    Rodless cylinder and method of manufacturing cylinder tube of the same
    6.
    发明授权
    Rodless cylinder and method of manufacturing cylinder tube of the same 失效
    无杆气缸及其制造方法相同

    公开(公告)号:US5727315A

    公开(公告)日:1998-03-17

    申请号:US617559

    申请日:1996-03-19

    申请人: Yasuo Higuchi

    发明人: Yasuo Higuchi

    摘要: This rodless cylinder is a rodless cylinder of pneumatic driving slit type, and a cyliner tube is provied with a curved part bent in the axial direction, and a slit of nearly trapezoidal section is formed along the longituinal direction of the inner circumferential side of the curve, and a seal belt with both ends fixed within the cylinder tube is arranged to be fitted to the slit and a piston is inserted within the cylinder. The piston has a piston body and seal pistons connected rockable to both sides of the piston body, and the piston body is provied with a connecting part projecting from the slit to the outside and a belt inserting hole for insertion of the seal belt. On an outer circumferential part of the piston body and the seal pistons, an annular groove with a bottom being a part of a spherical surface is formed and a wear ring having an inner circumferential surface with the same curved surface is inserted slantwise within the annular groove. In the cylinder tube of the rodless cylinder, a slit is formed linearly in the longitudinal direction of the outer circumferential part of a linear tubular material by cutting, and while the spacer is fitted into the slit, the tubular material is set in a recess of of a movable die and a fixed die of a bending machine and the movable die is moved along the curved outer circumferential part of the fixed die thereby the tubular material is bent with the spacer at inside.

    摘要翻译: 该无杆气缸是气动驱动狭缝型的无杆气缸,并且沿着轴向弯曲的弯曲部,并且沿着曲线的内周侧的长边方向形成有大致梯形截面的狭缝 并且将两端固定在气缸管内的密封带布置成装配到狭缝中,并且活塞插入气缸内。 活塞具有活塞体,密封活塞与活塞体的两侧相连接,活塞主体具有从狭缝向外侧突出的连接部,以及用于插入密封带的带插入孔。 在活塞体的外周部和密封活塞上形成有作为球面的一部分的环状槽,具有相同曲面的内周面的耐磨环倾斜地插入环状槽内 。 在无杆气缸的气缸筒中,通过切割在线状管状材料的外周部的长度方向上形成狭缝,并且当间隔件嵌入狭缝中时,将管状材料设置在 可移动模具和弯曲机的固定模具,并且可动模具沿着固定模具的弯曲外周部分移动,从而管状材料在内部被间隔件弯曲。

    SPEAKER DRIVE INTEGRATED CIRCUIT
    7.
    发明申请
    SPEAKER DRIVE INTEGRATED CIRCUIT 审中-公开
    扬声器驱动集成电路

    公开(公告)号:US20110216920A1

    公开(公告)日:2011-09-08

    申请号:US13033929

    申请日:2011-02-24

    IPC分类号: H03F99/00

    摘要: A speaker drive integrated circuit of the present invention includes: a load connection status detecting circuit configured to cause a current to flow from an external power supply to one of output terminals when an output side of an amplifying circuit is set to a high impedance state and detect whether a load connection status is normal, open, or short based on a voltage generated at the output terminal; and a transmitting terminal through which a signal indicating a detection result by the load connection status detecting circuit is output to outside.

    摘要翻译: 本发明的扬声器驱动集成电路包括:负载连接状态检测电路,其被配置为当放大电路的输出侧被设置为高阻抗状态时,使电流从外部电源流向输出端之一;以及 根据输出端产生的电压检测负载连接状态是正常,断开还是短路; 以及发送端子,通过该端子将表示负载连接状态检测电路的检测结果的信号输出到外部。

    Output offset protection for power amplifier
    8.
    发明申请
    Output offset protection for power amplifier 失效
    功率放大器的输出失调保护

    公开(公告)号:US20070096829A1

    公开(公告)日:2007-05-03

    申请号:US11262996

    申请日:2005-10-31

    IPC分类号: H03F1/52

    摘要: A output offset protection circuit provides protection of the load and the power amplifier through monitoring the temperature of the power transistor in the operational amplifier to detect fault conditions of an output block. In the output offset protection circuit, a sensor block monitors the temperature differences between the power transistors, while the output block is driving the load. Upon detection of the temperature differences reaching a 1st threshold level, the cutoff block sends a cutoff signal to a protection switch block, and the hysteresis block is activated. The hysteresis block shifts the threshold level lower to the 2nd threshold level. The sensor block continues to monitor the temperature differences until the 2nd threshold level is reached. Then the cutoff block is deactivated.

    摘要翻译: 输出偏移保护电路通过监视运算放大器中的功率晶体管的温度来检测负载和功率放大器的保护,以检测输出块的故障状况。 在输出偏移保护电路中,传感器模块监视功率晶体管之间的温差,同时输出模块正在驱动负载。 当检测到达到第一阈值电平的温度差时,截止块向保护开关块发送截止信号,并且启动滞后块。 滞后块将阈值水平移动到第二阈值水平。 传感器模块继续监视温差,直到达到第二阈值水平。 然后停用截止块。

    Voltage level detector for power amplifier protection control
    9.
    发明申请
    Voltage level detector for power amplifier protection control 失效
    用于功率放大器保护控制的电压电平检测器

    公开(公告)号:US20050231287A1

    公开(公告)日:2005-10-20

    申请号:US10824659

    申请日:2004-04-15

    IPC分类号: H03F1/52 H03F3/181 H03F3/72

    CPC分类号: H03F1/52 H03F3/181 H03F3/72

    摘要: A voltage level detector (8) activates itself through monitoring the voltage level (VSTB) at a standby pin (5) during power-up of an audio power amplifier (10), and can detect fault conditions of an output block (2), such as a short to ground at an output terminal (3), in contrast to conventional protection circuits that can operate only after power-up. In a voltage level detector (8), a second short-to-ground detection block (81) monitors the voltage levels (VSTB and Vout) at the standby pin (5) and the output terminal (3) during power-up. Upon detection of the voltage level (VSTB) reaching a first threshold level (Vth1) and a short to ground at the output terminal (3), the second short-to-ground detection block (81) activates a cutoff signal generating block (83). The recovery block (82) monitors the voltage level (VSTB) at the standby pin (5) during power-up. Upon detection of the voltage level (VSTB) reaching a second-threshold level (Vth2>Vth1), the recovery block (82) deactivates the cutoff signal generating block (83). The cutoff signal generating block (83) sends a cutoff signal (Sc) to a protection switch block (71) as a request for turn-off of protection switches (7A) on activation, and on the other hand, terminates the sending of the cutoff signal (Sc) on deactivation.

    摘要翻译: 电压电平检测器(8)通过在音频功率放大器(10)的上电期间监视备用引脚(5)处的电压电平(V SUB STB)而自身激活,并且可以检测故障条件 (3)的输出块(2),例如与地对地短路,与只能在上电后能够操作的常规保护电路相反。 在电压电平检测器(8)中,第二短路检测块(81)监视备用引脚处的电压电平(V SUB STB和V OUT OUT) (5)和输出端子(3)。 当检测到在输出端(3)处达到第一阈值电平(V SUB)和电压接地短路的电压电平(V SUB STB)时, 地面检测块(81)激活截止信号生成块(83)。 恢复块(82)在上电期间监视备用引脚(5)处的电压电平(V SUB STB)。 当检测到达到第二阈值电平(V SUB th2)的电压电平(V SUB S STB)时,恢复块(82 )去激活截止信号生成块(83)。 截止信号生成块(83)在保护开关(7A)的激活请求时,向保护开关块(71)发送切断信号(Sc),另一方面,终止发送 停用信号(Sc)。

    Bag top binding device and manufacturing method thereof
    10.
    发明授权
    Bag top binding device and manufacturing method thereof 失效
    袋顶装订装置及其制造方法

    公开(公告)号:US5832568A

    公开(公告)日:1998-11-10

    申请号:US841255

    申请日:1997-04-29

    申请人: Yasuo Higuchi

    发明人: Yasuo Higuchi

    IPC分类号: B65D33/16 A44B21/00 A45F5/00

    摘要: In binding packing bags or the like, there has been difficulties with performing a speedy binding operation to enclose and bind around the binding part instantly, with a small range of objects to be bound, and with loss of material sheet which accrues from cutting. In order to cope with such difficulties, the present invention provides, the binding device formed in a unified manner out of a filmy and flexible material sheet; wherein, the engaging portion 3 with the hole 4 formed therein, the narrow winding portion 2 which is extended from a side of said engaging portion 3 in order to wind around the binding part of the object to be bound, and the hooking portion 1 which is formed at the tip of said winding portion 2 in a nearly L-shaped form in order to be inserted into and hooked to said hole.

    摘要翻译: 在装订的包装袋等中,存在难以进行快速装订操作,以便在待结合的物体的范围内立即包围和结合装订部分,并且随着切割而产生的材料片的损失。 为了应对这种困难,本发明提供了一种从薄膜和柔性材料片中统一地形成的装订装置; 其中,形成有孔4的接合部3,从所述接合部3的一侧延伸的窄的卷绕部2,以围绕待约束物体的捆扎部缠绕;钩部1 形成在所述卷绕部2的前端,呈L字形状,以插入所述孔。