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1.发明授权公开(公告)号：US07282900B2
公开(公告)日：2007-10-16
申请号：US11206977
申请日：2005-08-19
IPC分类号： G05F1/40
CPC分类号： H02M3/1588 , Y02B70/1466
摘要： A method of regulating an output voltage by utilizing a switching regulator, where the switching regulator includes a high side switch, a low side switch having an active diode, a controller coupled to the high side switch and the low side switch, and a current measuring circuit coupled to the high side switch. The method includes the steps of: measuring the output voltage and if the output voltage is below a desired level, activating the high side switch so as to provide current to a load capacitor via a load inductor, if the voltage is above the desired level, activating the low side switch so as to sink current from the load capacitor via the load inductor; and utilizing the current measuring circuit to measure the current flowing through the high side switch in either a positive direction or a negative direction, where the controller is operable for controlling the current measuring circuit and disabling active components contained in the current measuring circuit and the active diode when the active components are not utilized during operation of the switching regulator so as to reduce operational power requirements of the switching regulator.
摘要翻译： 一种通过利用开关调节器调节输出电压的方法，其中开关调节器包括高侧开关，具有有源二极管的低侧开关，耦合到高侧开关和低侧开关的控制器以及电流测量 电路耦合到高侧开关。 该方法包括以下步骤：测量输出电压，并且如果输出电压低于期望电平，则激活高侧开关以便通过负载电感器向负载电容器提供电流，如果电压高于所需电平， 激活低侧开关，以便经由负载电感器从负载电容器吸收电流; 并利用电流测量电路来测量在正方向或负方向上流过高侧开关的电流，其中控制器可操作用于控制电流测量电路并禁用包含在电流测量电路中的有源元件和有源 当在开关调节器的操作期间不使用有源组件以减少开关调节器的操作功率需求时，二极管。
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公开(公告)号：US07126318B2
公开(公告)日：2006-10-24
申请号：US11210846
申请日：2005-08-25
IPC分类号： G05F1/40
CPC分类号： H02M3/156 , H02M2001/0025
摘要： A method of generating a slope compensation signal for use in a current mode switching regulator. The method includes the steps of summing a clock signal and a reference signal so as to generate a linear ramp signal; generating a non-linear signal from the linear ramp signal; multiplying a correction signal with an input voltage signal so as to generate a signal which varies based on a measured value of a current flowing within the current mode switching regulator; summing a first voltage signal corresponding to the non-linear correction signal and a second voltage signal indicating the difference between an actual voltage level of the current mode switching regulator and the desired voltage level of the current mode switching regulator so as to generate a first output signal which represents the second voltage signal minus the first voltage signal; and comparing the first output signal and the measured value of a current flowing within the current mode switching regulator, and generating a second output signal utilized to control current flow within the current mode switching regulator based on the result of the comparison.
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公开(公告)号：US07176668B2
公开(公告)日：2007-02-13
申请号：US10885788
申请日：2004-07-08
IPC分类号： G05F1/56
CPC分类号： H02M3/156
摘要： A switching regulator circuit with improved slope compensation for providing a regulated voltage to a load. The regulator circuit includes a power source and a switch circuit configured to control the coupling of the power source to the load. The operation of the switch circuit is controlled by a control signal generated by a control circuit. A feedback circuit is provided for generating a feedback signal indicative of the regulated voltage provided by the switching regulator circuit to the load. A circuit is provided to generate a sensed signal indicative of the current supplied by the power source. The regulator circuit further includes a timing signal generator for generating a timing signal, a ramp signal generator for generating a ramp signal, and a current source controlled by the ramp signal for generating a compensation signal indicative of the ramp signal. The control circuit generates the control signal based on the compensation signal, the timing signal, the sensed signal and the feedback signal.
摘要翻译： 具有改进的斜率补偿的开关调节器电路，用于向负载提供调节电压。 调节器电路包括电源和被配置为控制电源与负载的耦合的开关电路。 开关电路的操作由控制电路产生的控制信号控制。 提供反馈电路，用于产生指示由开关调节器电路提供给负载的调节电压的反馈信号。 提供电路以产生指示由电源提供的电流的感测信号。 调节器电路还包括用于产生定时信号的定时信号发生器，用于产生斜坡信号的斜坡信号发生器和由斜坡信号控制的电流源，用于产生指示斜坡信号的补偿信号。 控制电路基于补偿信号，定时信号，感测信号和反馈信号产生控制信号。
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4.发明授权Method and apparatus for performing lossless sensing and negative inductor currents in a high side switch 有权用于在高侧开关中执行正和负电感电流的无损检测的方法和装置公开(公告)号：US07282894B2
公开(公告)日：2007-10-16
申请号：US11207937
申请日：2005-08-22
申请人： Richard K. Oswald , Tamotsu Yamamoto , Takashi Ryu
发明人： Richard K. Oswald , Tamotsu Yamamoto , Takashi Ryu
IPC分类号： G05F1/613
CPC分类号： G01R19/0092 , H02M3/156 , H02M2001/0009
摘要： A current sensing circuit for use in a switching regulator having a high-side switch. The current sensing circuit includes a first sensing circuit coupled to the high-side switch for measuring current flowing in a positive direction through the high-side switch. The first sensing circuit includes a first replica device for generating a current which is a scaled version of the positive current flowing through the high-side switch. The current sensing circuit further includes a second sensing circuit coupled to the high-side switch for measuring current flowing in a negative direction through the high-side switch. The second sensing circuit includes a second replica device for generating a current which is a scaled version of the negative current flowing through the high-side switch.
摘要翻译： 一种用于具有高侧开关的开关调节器的电流感测电路。 电流检测电路包括耦合到高侧开关的第一感测电路，用于测量通过高侧开关在正方向上流动的电流。 第一感测电路包括用于产生电流的第一复制装置，该电流是流过高侧开关的正电流的缩放版本。 电流感测电路还包括耦合到高侧开关的第二感测电路，用于测量通过高侧开关沿负方向流动的电流。 第二感测电路包括用于产生电流的第二复制装置，该电流是流经高侧开关的负电流的缩放版本。
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公开(公告)号：US07199636B2
公开(公告)日：2007-04-03
申请号：US11094369
申请日：2005-03-31
IPC分类号： H03L5/00
CPC分类号： H02M3/1588 , H03K2017/307 , Y02B70/1466
摘要： An active diode including a NMOS transistor having a source terminal, a drain terminal, a gate terminal and a back gate terminal, where the source terminal is connected to the back gate terminal and forms the anode terminal of the active diode, and the drain terminal forms the cathode terminal of the active diode. The active diode further includes an offset bias voltage source having a first terminal and a second terminal; and an amplifier having a non-inverting input terminal and an inverting input terminal, and an output terminal, where the inverting input terminal is connected to the drain terminal of the transistor, the non-inverting input terminal is connected to the first terminal of the offset bias source, the output terminal is connected to the gate terminal of the transistor, and the second terminal of the offset bias source is connected to the source terminal of the transistor.
摘要翻译： 一种有源二极管，包括具有源极端子，漏极端子，栅极端子和背栅极端子的NMOS晶体管，其中源极端子连接到背栅极端子并形成有源二极管的阳极端子，并且漏极端子 形成有源二极管的阴极端子。 有源二极管还包括具有第一端子和第二端子的偏移偏置电压源; 以及放大器，其具有非反相输入端子和反相输入端子，以及输出端子，其中反相输入端子连接到晶体管的漏极端子，非反相输入端子连接到晶体管的第一端子 偏移偏置源，输出端子连接到晶体管的栅极端子，偏移偏置源的第二端子连接到晶体管的源极端子。
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公开(公告)号：US07250746B2
公开(公告)日：2007-07-31
申请号：US11092814
申请日：2005-03-30
申请人： Richard K. Oswald , Tamotsu Yamamoto , Hiroshi Saito , Takuya Ishii , Takashi Ryu , Hiroki Akashi , Takeshi Tanaka
发明人： Richard K. Oswald , Tamotsu Yamamoto , Hiroshi Saito , Takuya Ishii , Takashi Ryu , Hiroki Akashi , Takeshi Tanaka
CPC分类号： H02M3/156
摘要： A power supply switching regulator including a common terminal; an input terminal for supplying a direct current input; an output terminal; a recirculating diode having a first terminal connected to the common terminal; an inductor having a first terminal connected to a second terminal of the recirculation diode and a second terminal connected to the output terminal; a capacitor having a first terminal connected to the output terminal and a second terminal connected to the common terminal; a switch connected between the input terminal and the first terminal of the inductor, the switch operable for switching between an ON state in which the direct current input is coupled to the inductor, and an OFF state in which the direct current input is isolated from the inductor; and a controller coupled to the switch and operable for controlling the amount of time the switch is in the ON state and the OFF state such that the duration of time the switch is in the ON state is inversely proportional to the difference between the voltage at the input terminal and the voltage at the output terminal.
摘要翻译： 一种电源开关调节器，包括公共端子; 用于提供直流输入的输入端; 输出端子; 循环二极管，其具有连接到所述公共端子的第一端子; 电感器，其具有连接到所述再循环二极管的第二端子的第一端子和连接到所述输出端子的第二端子; 电容器，其具有连接到所述输出端子的第一端子和连接到所述公共端子的第二端子; 连接在电感器的输入端子和第一端子之间的开关，所述开关可操作用于在其中直流输入耦合到电感器的导通状态和直流输入与电感器隔离的截止状态之间切换 电感; 以及控制器，其耦合到所述开关并且可操作用于控制所述开关处于导通状态和断开状态的时间量，使得所述开关处于导通状态的持续时间与所述开关处于所述开关状态的电压之间的差成反比 输入端子和输出端子的电压。
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7.发明授权Method of detecting changes in operability status of a slider mover in a disk drive 有权检测磁盘驱动器中滑块移动器的可操作性状态变化的方法公开(公告)号：US07411389B1
公开(公告)日：2008-08-12
申请号：US11101297
申请日：2005-04-07
申请人： Anthony R. Hurtado , Erhard Schreck , Duc Banh , Tim Glassburn , Kazuhiro Saito , Scott Hughes , Brian Strom , Richard K. Oswald
发明人： Anthony R. Hurtado , Erhard Schreck , Duc Banh , Tim Glassburn , Kazuhiro Saito , Scott Hughes , Brian Strom , Richard K. Oswald
CPC分类号： G11B27/36 , G11B5/3133 , G11B5/40 , G11B5/6064 , G11B19/048 , G11B2220/2516 , Y10T29/49025 , Y10T29/49036
摘要： A method for monitoring the operability of a slider of a disk drive includes the steps of providing a slider that includes a read/write head that magnetically interacts with a storage disk, and a slider mover that adjusts a head-to-disk spacing, controlling an electrical stimulus to the slider mover with a drive circuitry, measuring an actual electrical response from the slider mover with the drive circuitry, and comparing the actual electrical response to an expected electrical response to determine an operability status of the slider mover. Further, changes in the actual electrical response can be monitored and used to predict future failure of the slider mover.
摘要翻译： 一种用于监视磁盘驱动器的滑动器的可操作性的方法包括以下步骤：提供包括与存储盘磁性相互作用的读/写头的滑块，以及调节磁头到磁盘间距的滑动移动器，控制 利用驱动电路对滑块移动器的电刺激，测量来自滑块移动器的驱动电路的实际电响应，以及将实际电响应与预期的电响应进行比较，以确定滑块移动器的可操作性状态。 此外，可以监视实际电响应的变化并用于预测滑块移动器的未来故障。
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8.发明授权Apparatus and method for rotating an optical element using a moving coil in a constant magnetic field 失效在恒定磁场中使用运动线圈旋转光学元件的装置和方法
公开(公告)号：US5488240A
公开(公告)日：1996-01-30
申请号：US172899
申请日：1993-12-27
申请人： Louis Hlousek , K. C. Odencrantz , Richard K. Oswald , Donald W. Dahlin , Saied Motaei , Paul W. Siggins , Kenny Wong , Ronald A. Smith , Philip M. Scheinert
发明人： Louis Hlousek , K. C. Odencrantz , Richard K. Oswald , Donald W. Dahlin , Saied Motaei , Paul W. Siggins , Kenny Wong , Ronald A. Smith , Philip M. Scheinert
CPC分类号： G02B7/1828 , G01J3/18 , G02B7/005
摘要： An apparatus and method for rotating an optical element, such as a diffraction grating or mirror, utilizes a moving coil actuator and an optical encoder to provide precise element position control. The moving coil actuator, which is coupled to the optical element, is comprised of a coil immersed in a magnetic field created by a pair of magnets. Current flowing in the coil windings causes the coil, and ultimately the optical element, to rotate. An optical encoder monitors the rotation of the element and provides rotation signals representative of the instantaneous element position to an actuator control circuit. The actuator control circuit phase shifts the rotation signals and compares the phase shifted rotation signals to a desired reference signal to generate position and velocity error signals. In a track follow mode, the position error signal is applied to the moving coil actuator via a loop compensator. When the apparatus is operating in an optimal seek mode, a trajectory generator receives the velocity error signals and generates an optimum velocity signal based on a preprogrammed velocity curve. The optimum velocity signal is then applied to the moving coil actuator via the loop compensator.
摘要翻译： 用于旋转光学元件（例如衍射光栅或反射镜）的装置和方法利用移动线圈致动器和光学编码器来提供精确的元件位置控制。 耦合到光学元件的移动线圈致动器包括浸入由一对磁体产生的磁场中的线圈。 在线圈绕组中流动的电流使得线圈和最终的光学元件旋转。 光学编码器监测元件的旋转并且向致动器控制电路提供表示瞬时元件位置的旋转信号。 致动器控制电路使旋转信号相移，并将相移的旋转信号与期望的参考信号进行比较，以产生位置和速度误差信号。 在跟踪跟踪模式中，位置误差信号通过环路补偿器施加到动圈线圈致动器。 当装置以最佳搜索模式操作时，轨迹发生器接收速度误差信号，并且基于预编程的速度曲线产生最佳速度信号。 然后通过环路补偿器将最佳速度信号施加到运动线圈致动器。
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公开(公告)号：US07882898B1
公开(公告)日：2011-02-08
申请号：US12869127
申请日：2010-08-26
CPC分类号： E02F3/3627 , E02F3/364 , E02F3/3663 , Y10T403/593 , Y10T403/76
摘要： A quick coupler includes mounting structure for mounting the coupler to a machine, and for mounting the coupler to an implement. The mounting structure on the coupler includes wedge coupling surfaces and a tube. The mounting structure on the implement includes hooks for engaging the tube, and complementary wedge coupling surfaces. The wedge coupling surfaces wedge together during coupling to produce and tight fit and solid hold between the coupler and implement. The mounting structure is robust, and can accommodate future possible wear. The kinematic impact on the performance of the implement due to the use of the quick coupler is minimized.
摘要翻译： 快速联接器包括用于将联接器安装到机器上的安装结构，以及将联接器安装到工具上。 耦合器上的安装结构包括楔形联接表面和管。 工具上的安装结构包括用于接合管的钩和互补楔形联接表面。 楔形联接表面在联接过程中楔合在一起，以在联接器和工具之间产生紧密配合和坚固的夹持。 安装结构坚固，可以适应未来可能的磨损。 由于使用快速耦合器对工具的性能的运动学影响最小化。
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10.发明授权System for monitoring and dynamically adjusting head-to-disk spacing in a disk drive 失效用于监视和动态调整磁盘驱动器中磁盘间距的系统公开(公告)号：US07310194B1
公开(公告)日：2007-12-18
申请号：US11101089
申请日：2005-04-07
申请人： Bruce C. Schardt , Erhard Schreck , Jingbo Yu , Michael Mallary , Scott Hughes , Duc Banh , Kazuhiro Saito , Donald J Brunnett , Tim Glassburn , Chris Hawks , Thao Anh Nguyen , Andrew LeFebvre , Joerg Ferber , Richard K. Oswald , Brian Strom
发明人： Bruce C. Schardt , Erhard Schreck , Jingbo Yu , Michael Mallary , Scott Hughes , Duc Banh , Kazuhiro Saito , Donald J Brunnett , Tim Glassburn , Chris Hawks , Thao Anh Nguyen , Andrew LeFebvre , Joerg Ferber , Richard K. Oswald , Brian Strom
IPC分类号： G11B21/02
CPC分类号： G11B5/6029 , G11B5/3133 , G11B5/455 , G11B5/5534 , G11B5/607
摘要： A disk drive includes a drive housing, a storage disk, a slider and a drive circuitry. The slider magnetically interacts with the storage disk, and includes a read/write head that is positioned to have an actual head-to-disk spacing greater than zero nanometers during rotation of the storage disk. The drive circuitry can determine and/or monitor the actual head-to-disk spacing at any time during the operation of the disk drive based on an amplitude or a change in the amplitude of a signal such as a variable gain amplifier signal. In one embodiment, the slider includes a slider mover that receives current via the drive circuitry and causes a deformation of a portion of the slider to change the head-to-disk spacing based on the amplitude of the signal. In another embodiment, the read/write head moves during substantially consistent rotational velocity of the storage disk from a first actual head-to-disk spacing equal to approximately zero nanometers, to a second actual head-to-disk spacing that is greater than zero nanometers based on a desired amplitude of the signal.
摘要翻译： 磁盘驱动器包括驱动器壳体，存储盘，滑块和驱动电路。 该滑块与存储盘磁性地相互作用，并且包括读/写头，其被定位成在存储盘旋转期间具有大于零纳米的实际头到盘间距。 驱动电路可以基于诸如可变增益放大器信号的信号的振幅或振幅的变化来确定和/或监视磁盘驱动器的操作期间的任何时间的实际磁头到磁盘间距。 在一个实施例中，滑块包括滑块移动器，其通过驱动电路接收电流，并且导致滑块的一部分的变形，以基于信号的幅度来改变头对盘间隔。 在另一个实施例中，读/写头在存储盘的基本一致的旋转速度从等于大约零纳米的第一实际磁头到磁盘间隔移动到大于零的第二实际磁头到磁盘间隔 基于信号的期望幅度的纳米。
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