公开(公告)号：US20090230913A1

公开(公告)日：2009-09-17

申请号：US12047123

申请日：2008-03-12

Applicant: Silva HITI ,  David TANG ,  Brian A. WELCHKO ,  Milun PERISIC ,  Constantin C. STANCU

Inventor： Silva HITI ,  David TANG ,  Brian A. WELCHKO ,  Milun PERISIC ,  Constantin C. STANCU

IPC: H02P23/10 ,  H02P27/06

CPC classification number: H02P27/06 ,  H02P3/22 ,  H02P23/10

Abstract: Methods and apparatus are provided for improved discharge of a DC bus which provides power to an inverter. An electric motor system provided with the improved discharge method for discharge of the DC bus includes an electric motor, the inverter which provides electric control for the permanent magnet electric motor, the direct current (DC) bus which provides power to the inverter, and a processor. The processor generates operational control signals and provides such operational control signals to the inverter. In response to detecting a predetermined discharge signal, the processor generates operational control signals for generating a ripple current in motor windings of the electric motor to dissipate energy from the DC bus through a passive load, the passive load including the motor windings of the electric motor.

Abstract translation: 提供了用于改进向逆变器提供电力的DC总线的放电的方法和装置。 具有改善的用于排放DC总线的放电方法的电动机系统包括电动机，为永磁电动机提供电力控制的逆变器，向逆变器供电的直流（DC）总线，以及 处理器。 处理器产生操作控制信号，并向变频器提供这种操作控制信号。 响应于检测到预定的放电信号，处理器产生用于在电动机的电动机绕组中产生纹波电流的操作控制信号，以通过无源负载从DC总线耗散能量，包括电动机的电动机绕组的被动负载 。

公开(公告)号：US20090230909A1

公开(公告)日：2009-09-17

申请号：US12047120

申请日：2008-03-12

Applicant: SILVA HITI ,  DAVID TANG ,  BRIAN A. WELCHKO ,  MILUN PERISIC ,  CONSTANTIN C. STANCU

Inventor： SILVA HITI ,  DAVID TANG ,  BRIAN A. WELCHKO ,  MILUN PERISIC ,  CONSTANTIN C. STANCU

IPC: G05B9/03 ,  H02P23/10 ,  H02P27/06

CPC classification number: H02P21/0003 ,  H02M2001/322

Abstract: Methods and apparatus are provided for discharging a direct current (DC) bus providing power to a motor control circuit in an electric motor system. The method includes the steps of detecting a predetermined discharge signal and generating operational control signals comprising phase currents for dissipating energy from the DC bus through a passive load in response to detecting the predetermined discharge signal, wherein the passive load includes motor windings of an electric motor of the electric motor system. The method also includes the step of providing the operational control signals to the motor control circuit for discharging the DC bus through the motor control circuit and the motor windings of the electric motor.

Abstract translation: 提供了用于对在电动机系统中的电动机控制电路供电的直流（DC）总线的放电的方法和装置。 该方法包括以下步骤：响应于检测到预定的放电信号，产生包括用于从DC总线通过无源负载消耗能量的相电流的操作控制信号，其中被动负载包括电动机的电动机绕组 的电机系统。 该方法还包括向电动机控制电路提供操作控制信号以通过电动机控制电路和电动机的电动机绕组排放DC总线的步骤。

公开(公告)号：US20060284487A1

公开(公告)日：2006-12-21

申请号：US11153171

申请日：2005-06-15

Applicant: David Tang ,  Silva Hiti ,  Constantin Stancu ,  Gregory Smith

Inventor： David Tang ,  Silva Hiti ,  Constantin Stancu ,  Gregory Smith

IPC: B60L1/00

CPC classification number: B60L11/1887 ,  H02P6/10 ,  H02P25/098 ,  Y02T10/642 ,  Y02T90/16 ,  Y02T90/34

Abstract: A control system for a vehicle powered by a fuel cell includes a voltage conversion device that communicates with the fuel cell through a voltage bus and a propulsion system that is selectively powered by the fuel cell through the voltage bus and that selectively generates a ripple current in the voltage bus. The voltage conversion device is regulated to selectively generate a counter-ripple current that reduces the ripple current.

Abstract translation: 用于由燃料电池供电的车辆的控制系统包括电压转换装置，其通过电压总线和推进系统与燃料电池连通，该推进系统由燃料电池通过电压总线选择性供电，并且选择性地产生纹波电流 电压总线。 调节电压转换器件以选择性地产生减小纹波电流的反纹波电流。

公开(公告)号：US06644928B1

公开(公告)日：2003-11-11

申请号：US10133278

申请日：2002-04-29

Applicant: David Tang

Inventor： David Tang

IPC: F04D2964

CPC classification number: F16M13/027 ,  F04D25/088 ,  F16M11/28 ,  F16M2200/027 ,  F16M2200/028

Abstract: A retractable suspension device of a ceiling fan includes an upper tube, a mounting base movably mounted on the upper tube, an urging member secured on the mounting base to move therewith and capable of urging the upper tube, a compression race rotatably mounted on the mounting base and releasably compressed on the urging member for compressing the urging member to urge the upper tube, and a lower tube secured on the mounting base to move therewith and telescopically mounted in the upper tube. Thus, the retractable suspension device has an adjustable length, so that the height and the length of the ceiling may be arbitrarily adjusted and changed by adjustment of the relative distance between the upper tube and the lower tube, thereby enhancing the versatility of the ceiling fan.

Abstract translation: 吊扇的可伸缩悬挂装置包括上管，可移动地安装在上管上的安装基座，固定在安装基座上以与其一起移动并能够推动上管的推动构件，可旋转地安装在安装件上的压缩座 基部并且可释放地压缩在推动构件上，用于压缩推动构件以推动上管，以及固定在安装基座上的下管，随着其移动并可伸缩地安装在上管中。 因此，可伸缩悬挂装置具有可调节的长度，从而可以通过调节上管和下管之间的相对距离来任意调整和改变天花板的高度和长度，从而提高吊扇的通用性 。

公开(公告)号：USD420166S

公开(公告)日：2000-02-01

申请号：US99592

申请日：1999-01-25

Applicant: David Tang

Designer： David Tang

公开(公告)号：USD407813S

公开(公告)日：1999-04-06

申请号：US91227

申请日：1998-07-24

Applicant: David Tang

Designer： David Tang

公开(公告)号：US09052253B2

公开(公告)日：2015-06-09

申请号：US13884069

申请日：2011-11-28

Applicant: Stephane Boutinon ,  David Tang

Inventor： Stephane Boutinon ,  David Tang

IPC: G01M11/02

CPC classification number: G01M11/0228 ,  G01M11/0214

Abstract: Method of determining at least one refractive characteristic of an ophthalmic lens, includes: a) placing the lens on a support having at least one prop element contacting one of the main faces of the lens in a contact zone area smaller than that of the main faces; b) lighting the lens placed on its support with lighting elements; c) capturing an image of the prop element of the support lighted by light rays that have passed through the lens, the image being captured in an image capture plane substantially perpendicular to an optical axis of the lens; d) in the image, identifying the image of the prop element of the support and determining at least one characteristic representative of the geometry of the image of the prop element; and e) from the characteristic representative of the geometry of the image of the prop element, deducing the looked-for refractive characteristic.

Abstract translation: 确定眼用透镜的至少一种折射特性的方法包括：a）将透镜放置在具有至少一个支撑元件的支撑件上，所述至少一个支撑元件接触所述透镜的主面之一的接触区域小于所述主表面 ; b）用照明元件照亮放置在其支架上的镜头; c）拍摄通过透镜的光线照射的支撑物的支柱元件的图像，该图像被捕获在基本上垂直于透镜的光轴的图像捕获平面中; d）在图像中，识别支撑件的支撑元件的图像，并且确定表示支柱元件的图像的几何形状的至少一个特征; 和e）从表示支撑元件的图像的几何形状的特征，推导出所寻找的折射特性。

公开(公告)号：US08747187B2

公开(公告)日：2014-06-10

申请号：US13089662

申请日：2011-04-19

Applicant: Cédric Lemaire ,  Philippe Pinault ,  David Tang

Inventor： Cédric Lemaire ,  Philippe Pinault ,  David Tang

IPC: B24B47/22

CPC classification number: B24B9/14 ,  B24B13/0055 ,  B24B41/062

Abstract: A method of shaping an ophthalmic lens to have a desired outline with a machining device including a blocking support for the ophthalmic lens and at least one first machining tool, the method includes: obtaining an inner cutting limit for the first machining tool; defining an initial blocking position for the ophthalmic lens and its desired outline; calculating whether at least a portion of the desired outline presents a non-zero intersection with the inner cutting limit; defining as the final blocking position either the unchanged initial blocking position if the calculated intersection is zero, or else a blocking position that is modified relative to the initial blocking position so that the desired outline as repositioned using the modified blocking position does not present an intersection with the inner cutting limit associated with the first tool; and blocking and shaping the ophthalmic lens with the desired outline.

Abstract translation: 一种使用包括用于眼科镜片的阻挡支撑件和至少一个第一加工工具的加工装置将眼镜片成形为具有期望轮廓的方法，所述方法包括：获得所述第一加工工具的内切割极限; 限定眼科镜片及其所需轮廓的初始阻挡位置; 计算所述期望轮廓的至少一部分是否具有与所述内切割极限的非零交集; 如果所计算的交点为零，则将最终阻挡位置定义为不变的初始阻挡位置，或者相对于初始阻挡位置修改的阻挡位置，使得使用修改的阻挡位置重新定位的期望轮廓不存在交叉点 具有与第一工具相关联的内切割限制; 并以期望的轮廓阻挡和成形眼科镜片。

公开(公告)号：US20130049454A1

公开(公告)日：2013-02-28

申请号：US13221667

申请日：2011-08-30

Applicant: KHIET LE ,  GREGORY D. ROSDAHL ,  David TANG ,  SEOK-JOO JANG ,  SONG HE

Inventor： KHIET LE ,  GREGORY D. ROSDAHL ,  David TANG ,  SEOK-JOO JANG ,  SONG HE

IPC: B60L1/00

CPC classification number: H02P27/06 ,  B60L3/003 ,  B60L2240/525 ,  B60L2260/44 ,  H02M1/32 ,  H02M2001/327 ,  Y02T10/642

Abstract: A power module system for a vehicle includes a circuit board, a power transistor mounted to the circuit board, and a temperature sensor mounted to the circuit board in a sensing location remote from the power transistor. The temperature sensor is configured to measure a real-time temperature at the sensing location. The system also includes a processor coupled to the temperature sensor to generate a predicted real-time silicon temperature for the power transistor from the measured real-time temperature at the sensing location. The predicted real-time silicon temperature is generated using a selected calibration curve that corresponds to a current operating state of the vehicle.

Abstract translation: 用于车辆的电源模块系统包括电路板，安装到电路板的功率晶体管和安装在远离功率晶体管的感测位置中的电路板的温度传感器。 温度传感器被配置为测量感测位置处的实时温度。 该系统还包括耦合到温度传感器的处理器，以从感测位置处测量的实时温度产生功率晶体管的预测实时硅温度。 使用对应于车辆的当前操作状态的所选择的校准曲线来生成预测的实时硅温度。

公开(公告)号：US20110168435A1

公开(公告)日：2011-07-14

申请号：US12686775

申请日：2010-01-13

Applicant: ALAN L. BARRY ,  ELI B. SMITH ,  BROOKS S. MANN ,  NICHOLAS HAYDEN HERRON ,  MARK D. KORICH ,  DAVID TANG ,  CINDY CHOU

Inventor： ALAN L. BARRY ,  ELI B. SMITH ,  BROOKS S. MANN ,  NICHOLAS HAYDEN HERRON ,  MARK D. KORICH ,  DAVID TANG ,  CINDY CHOU

IPC: H05K1/09 ,  H05K1/00

CPC classification number: H05K1/117 ,  H05K1/0265 ,  H05K2201/0352 ,  H05K2201/0919

Abstract: A printed circuit board includes, but is not limited to, a plurality of electrically conductive layers and a plurality of dielectric layers. Each dielectric layer is interposed between adjacent conductive layers to form a body of alternate conductive layers and dielectric layers. At least one of the electrically conductive layers protrudes beyond an end of the body.

Abstract translation: 印刷电路板包括但不限于多个导电层和多个电介质层。 每个电介质层插入相邻的导电层之间以形成交替导电层和电介质层的主体。 至少一个导电层突出超过主体的端部。