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660 条记录 (耗时 0.037 秒)

    NO LOAD DETECTION
    93.
    发明申请
    NO LOAD DETECTION 有权
    无负载检测

    公开(公告)号：US20140268955A1

    公开(公告)日：2014-09-18

    申请号：US13924402

    申请日：2013-06-21

    申请人： Flextronics AP, LLC

    发明人： Mark Telefus

    IPC分类号： H02M3/335

    CPC分类号： H02J7/025 ,  H02J50/10 ,  H02J50/12 ,  H02M3/28 ,  H02M3/335 ,  H02M3/33507 ,  H03K17/00 ,  H04B5/0037

    摘要： A power regulation control circuit is implemented as part of a power converter. The power regulation control circuit is implemented during two modes, a sleep mode and a wake-up mode. During the sleep mode, the power regulation control circuit detects a no-load presence and artificially increases the output voltage Vout to its maximum allowable value. This can be accomplished by pulling up an output of an error amplifier that feeds a PWM module. During the wake-up mode while the power converter wakes up from the sleep mode under maximum load, the output voltage Vout sinks from the artificially higher voltage, but still stays above a minimum operational voltage level. A slew rate compensation can be implemented to control a rate at which the output voltage drops when a load is applied. The artificially high output voltage during no-load condition and the slew rate compensation provide open loop voltage adjustment.

    摘要翻译： 功率调节控制电路被实现为功率转换器的一部分。 功率调节控制电路在两种模式下实现，即睡眠模式和唤醒模式。 在睡眠模式期间，功率调节控制电路检测空载存在并将输出电压Vout人为地增加到其最大允许值。 这可以通过提起馈送PWM模块的误差放大器的输出来实现。 在唤醒模式期间，功率转换器在最大负载下从休眠模式唤醒，输出电压Vout从人为更高的电压下降，但仍然保持在最低工作电压电平以上。 可以实施压摆率补偿来控制当施加负载时输出电压下降的速率。 在空载状态下人为高输出电压和转换速率补偿提供开环电压调节。

    DEPLETION MOSFET DRIVER
    94.
    发明申请
    DEPLETION MOSFET DRIVER 有权
    DEPLETION MOSFET驱动器

    公开(公告)号：US20140266321A1

    公开(公告)日：2014-09-18

    申请号：US13928250

    申请日：2013-06-26

    申请人： Flextronics AP, LLC

    发明人： Mark Telefus

    IPC分类号： H03K17/00

    CPC分类号： H02J7/025 ,  H02J50/10 ,  H02J50/12 ,  H02M3/28 ,  H02M3/335 ,  H02M3/33507 ,  H03K17/00 ,  H04B5/0037

    摘要： A driver circuit is configured using a depletion-mode MOSFET to supply an output voltage across an output capacitor. The driver circuit includes a resistor positioned between two terminals of the MOSFET. In the case of an n-channel depletion-mode MOSFET, the resistor is coupled to the source and the gate. The circuit is a current controlled depletion driver that turns OFF the depletion-mode MOSFET by driving a reverse current through the resistor to establish a negative potential at the gate relative to the source. A Zener diode is coupled between the source of the depletion-mode MOSFET and the output capacitor to establish a voltage differential between the output and the MOSFET source.

    摘要翻译： 使用耗尽型MOSFET来配置驱动器电路以在输出电容器两端提供输出电压。 驱动器电路包括位于MOSFET的两个端子之间的电阻器。 在n沟道耗尽型MOSFET的情况下，电阻器耦合到源极和栅极。 电路是电流可控的耗尽驱动器，通过驱动反向电流通过电阻器来关断耗尽型MOSFET，以在栅极处相对于源极建立负电位。 齐纳二极管耦合在耗尽型MOSFET的源极和输出电容器之间，以在输出和MOSFET源之间建立电压差。

    SWEEP FREQUENCY MODE FOR MULTIPLE MAGNETIC RESONANT POWER TRANSMISSION
    95.
    发明申请
    SWEEP FREQUENCY MODE FOR MULTIPLE MAGNETIC RESONANT POWER TRANSMISSION 有权
    用于多个磁共振功率传输的振动频率模式

    公开(公告)号：US20140266027A1

    公开(公告)日：2014-09-18

    申请号：US13865038

    申请日：2013-04-17

    申请人： Flextronics AP, LLC

    发明人： Mark Telefus

    IPC分类号： H02J7/02

    CPC分类号： H02J7/025 ,  H02J50/10 ,  H02J50/12 ,  H02M3/28 ,  H02M3/335 ,  H02M3/33507 ,  H03K17/00 ,  H04B5/0037

    摘要： A power transmission pad is configured to provide wireless power transmission to multiple portable electronic devices where each device is orientation-free relative to the pad. The power transmission pad is also configured to be power adaptive by changing the power transmission level depending on the number of devices being concurrently charged. Each device, is placed within the magnetic field for the purpose of charging the device battery. The power transmission pad includes a sweep frequency generator for generating power transmissions across a frequency spectrum. The number of devices to be charged is determined as well as an optimal frequency for maximum energy transfer to each device. A single combined optimal frequency is determined using the optimal frequencies determined for each individual device. The sweep frequency generator is locked to the single combined optimal frequency and a power transmission level is set according to the number of devices.

    摘要翻译： 电力传输焊盘被配置为向多个便携式电子设备提供无线电力传输，其中每个设备相对于焊盘是无取向的。 功率传输焊盘还被配置为通过根据同时充电的设备的数量来改变功率传输电平来进行功率自适应。 每个器件都放置在磁场内，以便为器件电池充电。 功率传输焊盘包括用于在频谱上产生功率传输的扫频频率发生器。 确定要充电的设备数量以及最大能量传输到每个设备的最佳频率。 使用为每个单独设备确定的最佳频率来确定单个组合最佳频率。 扫频发生器被锁定到单个组合最优频率，根据设备数量设置功率传输电平。

    SNAIL WHEEL
    96.
    发明申请
    SNAIL WHEEL 有权
    SNAIL轮

    公开(公告)号：US20140239008A1

    公开(公告)日：2014-08-28

    申请号：US13833879

    申请日：2013-03-15

    申请人： FLEXTRONICS AP, LLC

    发明人： Stephen H. Hancock ,  Brandon M. Warzecho

    IPC分类号： G07F11/00

    CPC分类号： G07F11/005 ,  G07F11/24

    摘要： A method and apparatus for operating a snail wheel in a vending machine are disclosed. The method for operating the snail wheel includes accepting a 5 gallon water bottle into the snail wheel, lifting the 5 gallon water bottle up off a bottom shelf of the vending machine, rotating the snail wheel 90° from a starting point, stopping the snail wheel after rotating 90°, wherein at the 5 gallon water bottle rolls out of the snail wheel and onto a platform, and rotating the snail wheel 270° back to the starting point.

    摘要翻译： 公开了一种用于在自动贩卖机中操作蜗轮的方法和装置。 用于操作蜗轮的方法包括将5加仑水瓶接纳到蜗轮中，将5加仑水瓶从自动售货机的底架上提起，将蜗轮从起点旋转90°，停止蜗轮 在旋转90°后，其中在5加仑水瓶从蜗轮滚出并移动到平台上，并将蜗轮270旋转回起点。

    ENERGY CONVERSION ARCHITECTURE WITH SECONDARY SIDE CONTROL DELIVERED ACROSS TRANSFORMER ELEMENT
    98.
    发明申请
    ENERGY CONVERSION ARCHITECTURE WITH SECONDARY SIDE CONTROL DELIVERED ACROSS TRANSFORMER ELEMENT 有权
    具有二次侧控制的能量转换架构交付变压器元件

    公开(公告)号：US20140204619A1

    公开(公告)日：2014-07-24

    申请号：US13865022

    申请日：2013-04-17

    申请人： Flextronics AP, LLC

    发明人： Mark Telefus

    IPC分类号： H02M3/335

    CPC分类号： H02M3/33523 ,  H02M3/33576

    摘要： A switched mode power converter is configured having predominate secondary side control. A primary side driving circuit is configured as a responsive state machine the output of which is input as the driving signal for a main switch. An output voltage, current or power is sensed and the secondary side controller compares the sensed output characteristic with a predefined reference. The comparison results in an error that signifies an amount that the output is out of regulation. The secondary side controller drives a secondary side switch to generate a voltage pulse across the secondary winding. The voltage pulse has a pulse width that represents the amount of error in the output characteristic. The voltage pulse is transmitted across the transformer and received by the primary side driving circuit, which generates a driving signal modulated according to the voltage pulse and drives the main switch to regulate the output characteristic.

    摘要翻译： 开关模式功率转换器被配置为具有主要的次级侧控制。 初级侧驱动电路被配置为响应状态机，其输出被输入作为主开关的驱动信号。 检测输出电压，电流或功率，次级侧控制器将检测到的输出特性与预定参考值进行比较。 比较结果显示错误，表示输出超出规定的数量。 次级侧控制器驱动次级侧开关以在次级绕组上产生电压脉冲。 电压脉冲具有表示输出特性的误差量的脉冲宽度。 电压脉冲通过变压器传输并被初级侧驱动电路接收，其产生根据电压脉冲调制的驱动信号并驱动主开关以调节输出特性。

    Circuit assembly yield prediction with respect to manufacturing process
    99.
    发明授权
    Circuit assembly yield prediction with respect to manufacturing process 有权
    相对于制造过程的电路组装产量预测

    公开(公告)号：US08707221B2

    公开(公告)日：2014-04-22

    申请号：US13656592

    申请日：2012-10-19

    申请人： Flextronics AP, LLC

    发明人： Michael Anthony Durkan

    IPC分类号： G06F17/50 ,  G06F19/00 ,  G01R31/00 ,  G01R27/00 ,  G06F17/15 ,  G06F17/11 ,  G06F17/18 ,  G06F11/00 ,  G01R31/02 ,  G01R31/08 ,  G01R31/26

    CPC分类号： G06F17/5081 ,  G01R27/00 ,  G01R31/003 ,  G01R31/02 ,  G01R31/08 ,  G01R31/26 ,  G06F11/008 ,  G06F17/11 ,  G06F17/15 ,  G06F17/18 ,  G06F17/5009 ,  G06F19/00 ,  G06F2217/10 ,  G06F2217/12 ,  G06F2217/14

    摘要： Embodiments of the invention include systems and methods for automatically predicting production yield for a circuit assembly according to attributes of its components and defect data mapped thereto. Embodiments receive a proposed design specification for a circuit assembly, including bill of materials (BOM) and schematic data, at a yield prediction environment. The yield prediction environment maps a set of attributes to each component in the BOM and maps a set of possible defects to each component according to its attributes. Defects may be further mapped to a manufacturing process assigned to populate each component in the circuit assembly. The defects are associated with predicted frequencies of occurrence, which can be used to roll up a yield prediction for the circuit assembly. Embodiments further allow “what-if” analyses to be performed so that different yield prediction results can be compared according to different form factor options and/or different manufacturing process options.

    摘要翻译： 本发明的实施例包括根据其组件的属性和映射到其的缺陷数据来自动预测电路组件的生产良率的系统和方法。 实施例在产量预测环境下接收用于电路组件的提出的设计规范，包括物料清单（BOM）和原理图数据。 产量预测环境将一组属性映射到BOM中的每个组件，并根据其属性将一组可能的缺陷映射到每个组件。 缺陷可以进一步映射到分配用于填充电路组件中的每个部件的制造过程。 这些缺陷与预测的发生频率相关联，其可以用于卷起电路组件的成品率预测。 实施例还允许执行“假设”分析，使得可以根据不同的形状因子选项和/或不同的制造过程选项来比较不同的产量预测结果。