公开(公告)号：EP1505719A2

公开(公告)日：2005-02-09

申请号：EP04254754.7

申请日：2004-08-06

Applicant: STMicroelectronics, Inc.

Inventor： Shao, Jianwen ,  Hopkins, Thomas L.

IPC: H02P6/22

CPC classification number: H02P6/182 ,  H02P1/029 ,  H02P6/22

Abstract: A device and method that determine a freewheeling rotation of an electric motor. The method includes steps of measuring first and second signals from respective first and second windings of an unenergized motor, and determining from the first and second signals whether the unenergized motor is rotating. The method may also include determining from the first and second signals the direction of rotation if the unenergized motor is rotating. The method may further include measuring a third signal from a third winding of the unenergized motor, and determining whether the motor is rotating may include determining that the motor is not rotating if the first, second, and third signals are equal. The first and second signals may each comprise a respective back voltage.

Abstract translation: 确定电动机的续流旋转的装置和方法。 该方法包括以下步骤：测量未通电电动机的相应第一和第二绕组的第一和第二信号，以及根据第一和第二信号确定未通电电动机是否正在旋转。 该方法还可以包括如果未通电的电动机正在旋转，则从第一和第二信号确定旋转方向。 该方法还可以包括从未通电电动机的第三绕组测量第三信号，并且确定电动机是否正在旋转可以包括如果第一，第二和第三信号相等则确定电动机不旋转。 第一和第二信号可以各自包括相应的反向电压。

公开(公告)号：EP1505719A3

公开(公告)日：2009-05-13

申请号：EP04254754.7

申请日：2004-08-06

Applicant: STMicroelectronics, Inc.

Inventor： Shao, Jianwen ,  Hopkins, Thomas L.

IPC: H02P6/18 ,  H02P1/02 ,  H02P6/22

CPC classification number: H02P6/182 ,  H02P1/029 ,  H02P6/22

Abstract: A device and method that determine a freewheeling rotation of an electric motor. The method includes steps of measuring first and second signals from respective first and second windings of an unenergized motor, and determining from the first and second signals whether the unenergized motor is rotating. The method may also include determining from the first and second signals the direction of rotation if the unenergized motor is rotating. The method may further include measuring a third signal from a third winding of the unenergized motor, and determining whether the motor is rotating may include determining that the motor is not rotating if the first, second, and third signals are equal. The first and second signals may each comprise a respective back voltage.

公开(公告)号：EP1505719B1

公开(公告)日：2010-10-27

申请号：EP04254754.7

申请日：2004-08-06

Applicant: STMicroelectronics, Inc.

Inventor： Shao, Jianwen ,  Hopkins, Thomas L.

IPC: H02P6/18 ,  H02P1/02 ,  H02P6/22

CPC classification number: H02P6/182 ,  H02P1/029 ,  H02P6/22

公开(公告)号：EP1694102A1

公开(公告)日：2006-08-23

申请号：EP06250805.6

申请日：2006-02-15

Applicant: STMicroelectronics, Inc.

Inventor： Hopkins, Thomas L.

IPC: H05B41/40

CPC classification number: H05B41/40

Abstract: A fluorescent lamp assembly (100) includes a fluorescent lamp ballast (104) capable of detecting at least one of a plurality of input signals (120) and generating an output signal (110). The output signal (110) is associated with a power level that is based on the at least one detected input signal. The fluorescent lamp assembly (100) also includes a fluorescent lamp (102) capable of receiving the output signal (110) and generating light. An intensity of the light is based on the power level associated with the output signal.

Abstract translation: 一种荧光灯组件（100）包括一个荧光灯镇流器（104），其能够检测输入信号（120）中的多个至少一个，并且在输出信号（110）产生的。 的输出信号（110）与没有基于所述至少一个检测到的输入信号的功率电平相关联。 荧光灯组件（100），从而包括荧光灯（102）能够接收所述输出信号（110）并产生光的。 的光的强度是基于与所述输出信号相关联的功率电平。