公开(公告)号：US07560898B1

公开(公告)日：2009-07-14

申请号：US11240954

申请日：2005-09-30

Applicant: Bruno Kranzen ,  Luan Vu ,  Jonathan R. Knight ,  Larry Bradley

Inventor： Bruno Kranzen ,  Luan Vu ,  Jonathan R. Knight ,  Larry Bradley

IPC: H01J7/00 ,  G05F1/00

CPC classification number: H02J7/0055 ,  H02J2007/0059 ,  H02J2007/0062 ,  H02M1/10

Abstract: A voltage regulation and battery charging system is provided. The system may include a switching regulator selection control circuit, two switching regulator controller circuits, two power transistors, a common synchronous transistor, and a common LC circuit. The two switching regulator controller circuits may synchronously switch the two power transistors and the one common synchronous transistor. One of the switching regulator controller circuits may receive a voltage from an AC adapter and the other may receive a voltage from a USB port. Further, the switching regulation selection control circuit selects which of the two switching regulator controller circuits controls the regulation of the system output voltage employing the common LC filter.

Abstract translation: 提供电压调节和电池充电系统。 该系统可以包括开关调节器选择控制电路，两个开关调节器控制器电路，两个功率晶体管，公共同步晶体管和公共LC电路。 两个开关稳压器控制器电路可同步地切换两个功率晶体管和一个公共同步晶体管。 开关调节器控制器电路之一可以从AC适配器接收电压，另一个可以从USB端口接收电压。 此外，开关调节选择控制电路选择两个开关调节器控制器电路中的哪一个控制采用公共LC滤波器的系统输出电压的调节。

公开(公告)号：US06639373B2

公开(公告)日：2003-10-28

申请号：US09966465

申请日：2001-09-28

Applicant: Jonathan R. Knight ,  Yasushi Kitamura

Inventor： Jonathan R. Knight ,  Yasushi Kitamura

IPC: G11B1518

CPC classification number: G11B5/54 ,  H02P25/034

Abstract: The present invention provides an apparatus and system (300) supplying a regulated voltage of sufficient magnitude to enable de-latching of a head carriage from a latching device. In at least one embodiment, providing a voltage source for the voice coil motor (14) includes a regulator (310) having an input for receiving a first voltage potential and operably configured to provide a second voltage potential to an output selectively coupled to the voice coil motor (14) by a switch (345). A current source (315) is operably configured to provide a predetermined limited current via a pass transistor (325) associated with the regulator is also included. Further included is a capacitor (335) coupled to the regulator output and operably configured for charging by the current source via the current limited pass transistor.

Abstract translation: 本发明提供了一种提供足够大的调节电压的装置和系统（300），以使得头托架能够从锁定装置解锁。 在至少一个实施例中，为音圈电机（14）提供电压源包括调节器（310），其具有用于接收第一电压电位的输入端并可操作地配置为向选择性地耦合到声音的输出端提供第二电压电位 线圈电动机（14）通过开关（345）。 还包括电流源（315），其被可操作地配置成经由与调节器相关联的传输晶体管（325）提供预定的限制电流。 还包括耦合到调节器输出的电容器（335），并且可操作地配置为经由电流限制传输晶体管由电流源充电。

公开(公告)号：US5675241A

公开(公告)日：1997-10-07

申请号：US672125

申请日：1996-06-27

Applicant: Ross E. Teggatz ,  Joseph A. Devore ,  Jonathan R. Knight

Inventor： Ross E. Teggatz ,  Joseph A. Devore ,  Jonathan R. Knight

IPC: G05F3/24 ,  G05F1/56 ,  G05F5/00

CPC classification number: G05F3/247

Abstract: A circuit and method for providing a low drop out voltage regulator. A source follower circuit is provided having a transistor (MD1) with an output terminal for driving a load at its source terminal and a voltage supply coupled to the drain terminal. At least one diode (D1) is coupled between the gate terminal and a ground reference to provide a predetermined voltage at the gate of the transistor (MD1). A voltage multiplier circuit is provided having an input (IN) for receiving an oscillating input voltage and a charge storage device (39) coupled between the oscillating input and a voltage reference (Vref), and being further coupled in series with the voltage reference and then to the gate terminal of the transistor (MD1). The oscillating input voltage is used to charge the charge storage device (39) to a voltage approximately equal to the voltage reference. When the supply voltage falls below the normal level, the series combination of the voltage reference and the charge storage device provides a multiplied voltage at the gate of the transistor, for example a voltage of twice the reference voltage. This high gate voltage keeps the output at the source of the transistor at a high voltage that is approximately equal to the supply voltage, such that the circuit provides a low drop out voltage under low supply voltage conditions.

Abstract translation: 一种用于提供低压降稳压器的电路和方法。 源极跟随器电路具有晶体管（MD1），其具有用于驱动其源极端子处的负载的输出端子和耦合到漏极端子的电压源。 至少一个二极管（D1）耦合在栅极端子和接地基准之间，以在晶体管（MD1）的栅极处提供预定的电压。 提供了具有用于接收振荡输入电压的输入（IN）和耦合在振荡输入和电压参考（Vref）之间的电荷存储装置（39）的电压倍增器电路，并进一步与电压基准串联耦合， 然后到晶体管（MD1）的栅极端子。 振荡输入电压用于将电荷存储装置（39）充电至大致等于电压基准的电压。 当电源电压低于正常电平时，电压基准和电荷存储装置的串联组合在晶体管的栅极处提供倍增电压，例如两倍于参考电压的电压。 该高栅极电压将晶体管源极处的输出保持在大致等于电源电压的高电压，使得该电路在低电源电压条件下提供低压降电压。

公开(公告)号：US20130062967A1

公开(公告)日：2013-03-14

申请号：US13616726

申请日：2012-09-14

Applicant: Ross E. Teggatz ,  Amer H. Atrash ,  Jonathan R. Knight

Inventor： Ross E. Teggatz ,  Amer H. Atrash ,  Jonathan R. Knight

IPC: H01F38/14

CPC classification number: H02J50/12 ,  H01F38/14 ,  H02J5/005 ,  H02J50/80

Abstract: A system for power transfer is provided. In one exemplary embodiment, the system includes an inductive power device, such as a device that transmits or receives power over an inductive coupling. For example, an adjustable impedance is coupled to the inductive power device, where the adjustable impedance is used for dynamically controlling the power gain in the inductive power device, such as by damping power generated by circuit impedances, such as inductances, capacitances or resistances, and combinations thereof.

Abstract translation: 提供电力传输系统。 在一个示例性实施例中，系统包括感应功率器件，例如通过感应耦合发送或接收功率的器件。 例如，可调阻抗耦合到感应功率器件，其中可调阻抗用于动态地控制感应功率器件中的功率增益，例如通过阻抗由电路阻抗（例如电感，电容或电阻）产生的功率， 及其组合。

公开(公告)号：US09553457B2

公开(公告)日：2017-01-24

申请号：US13616726

申请日：2012-09-14

Applicant: Ross E. Teggatz ,  Amer H. Atrash ,  Jonathan R. Knight

Inventor： Ross E. Teggatz ,  Amer H. Atrash ,  Jonathan R. Knight

IPC: H01F38/14 ,  H02J5/00

CPC classification number: H02J50/12 ,  H01F38/14 ,  H02J5/005 ,  H02J50/80

Abstract: A system for power transfer is provided. In one exemplary embodiment, the system includes an inductive power device, such as a device that transmits or receives power over an inductive coupling. For example, an adjustable impedance is coupled to the inductive power device, where the adjustable impedance is used for dynamically controlling the power gain in the inductive power device, such as by damping power generated by circuit impedances, such as inductances, capacitances or resistances, and combinations thereof.

Abstract translation: 提供电力传输系统。 在一个示例性实施例中，系统包括感应功率器件，例如通过感应耦合器发送或接收功率的器件。 例如，可调阻抗耦合到感应功率器件，其中可调阻抗用于动态地控制感应功率器件中的功率增益，例如通过阻抗由电路阻抗（例如电感，电容或电阻）产生的功率， 及其组合。

公开(公告)号：US07205736B2

公开(公告)日：2007-04-17

申请号：US10406044

申请日：2003-04-02

Applicant: Jonathan R. Knight ,  Akihiko Miyanohara

Inventor： Jonathan R. Knight ,  Akihiko Miyanohara

IPC: H02P7/06

CPC classification number: H02P6/28 ,  G11B19/28 ,  H02P6/10 ,  H02P2209/01

Abstract: Methods and systems for driving a motor are disclosed. A center tap voltage and a desired center tap voltage are used to generate a voltage feedback. A power amplifier receives a reference current and the voltage feedback. The power amplifier provides a phase current to a phase of a motor. The phase current is substantially centered about the desired center tap voltage as a consequence of the voltage feedback. Thus, high-side to low-side or state to state current variations are reduced thereby reducing the occurrence of problems such as torque ripple and back EMF.

Abstract translation: 公开了用于驱动电动机的方法和系统。 使用中心抽头电压和期望的中心抽头电压来产生电压反馈。 功率放大器接收参考电流和电压反馈。 功率放大器为电机的相位提供相电流。 作为电压反馈的结果，相电流基本上以期望的中心抽头电压为中心。 因此，降低了高侧到低侧或状态到状态的电流变化，从而减少了诸如扭矩波动和反电动势的问题的发生。