公开(公告)号：US20160372910A1

公开(公告)日：2016-12-22

申请号：US14740412

申请日：2015-06-16

Applicant: Hamilton Sundstrand Corporation

Inventor： Harold J. Hansen

IPC: H02H3/08

CPC classification number: H02H3/08 ,  H02H3/006 ,  H02H7/08 ,  H02H7/0833 ,  H02H9/02 ,  H02H9/025 ,  H02P29/032

Abstract: A current limiting circuit for a motor controller includes a comparator. The comparator has a sensed current input, a current threshold input, and an overcurrent protection trip output. A variable resistance current threshold circuit is connected to the current threshold input. A first controller is connected to the variable resistance current threshold circuit via a plurality of connections. The first controller is configured to control a voltage output of the variable resistance current threshold circuit.

Abstract translation: 电动机控制器的限流电路包括比较器。 比较器具有检测到的电流输入，电流阈值输入和过流保护跳闸输出。 可变电阻电流阈值电路连接到电流阈值输入。 第一控制器通过多个连接连接到可变电阻电流阈值电路。 第一控制器被配置为控制可变电阻电流阈值电路的电压输出。

公开(公告)号：US09551744B2

公开(公告)日：2017-01-24

申请号：US13886927

申请日：2013-05-03

Applicant: HAMILTON SUNDSTRAND CORPORATION

Inventor： Waleed M. Said ,  Harold J. Hansen ,  Hamdi Kozlu ,  Charles V. DeSantis

IPC: G01R31/305 ,  G01R31/28

CPC classification number: G01R31/2817 ,  G01R31/2801

Abstract: A method includes characterizing the effects of an electric field on a first set of printed wiring boards (PWBs) by testing the first set of PWBs to generate test data, using the test data to determine a dielectric life curve of the first set of PWBs, and based on the dielectric life curve, defining a screening time and a screening voltage to screen for premature failures in a second set of PWBs due to electric fields.

Abstract translation: 一种方法包括通过测试第一组PWB以产生测试数据来表征电场对第一组印刷电路板（PWB）的影响，使用测试数据确定第一组PWB的介电寿命曲线， 并且基于介电寿命曲线，定义筛选时间和筛选电压以筛选由于电场引起的第二组PWB中的过早故障。

公开(公告)号：US20140239864A1

公开(公告)日：2014-08-28

申请号：US13774504

申请日：2013-02-22

Applicant: HAMILTON SUNDSTRAND CORPORATION

Inventor： Harold J. Hansen ,  Robert P. Wichowski ,  Kevin G. Hawes ,  Patrick J. Sears

IPC: H02P6/18

CPC classification number: H02P6/182 ,  H02P6/12 ,  H02P7/06

Abstract: A sensorless motor controller includes a variable link control, including a radiation-hardened field programmable gate array (FPGA) and a back electromotive force (EMF) decoder circuit. The back EMF decoder infers the position of a rotor of the motor. A filter on the decoder conditions the back EMF signal and has multiple cutoff frequencies which can be dynamically controlled by the FPGA in order to compensate for phase shift in the back EMF signal. The FPGA also controls a variable DC link and its digital speed control loop.

Abstract translation: 无传感器电机控制器包括可变链路控制，包括辐射硬化现场可编程门阵列（FPGA）和反电动势（EMF）解码器电路。 反EMF解码器推断电动机转子的位置。 解码器上的滤波器对反电动势信号进行调节，并具有可由FPGA动态控制的多个截止频率，以补偿反电动势信号中的相移。 FPGA还控制可变直流链路及其数字速度控制回路。

公开(公告)号：US20140218065A1

公开(公告)日：2014-08-07

申请号：US13886927

申请日：2013-05-03

Applicant: HAMILTON SUNDSTRAND CORPORATION

Inventor： Waleed M. Said ,  Harold J. Hansen ,  Hamdi Kozlu ,  Charles V. DeSantis

IPC: G01R31/28

CPC classification number: G01R31/2817 ,  G01R31/2801

Abstract: A method includes characterizing the effects of an electric field on a first set of printed wiring boards (PWBs) by testing the first set of PWBs to generate test data, using the test data to determine a dielectric life curve of the first set of PWBs, and based on the dielectric life curve, defining a screening time and a screening voltage to screen for premature failures in a second set of PWBs due to electric fields.

Abstract translation: 一种方法包括通过测试第一组PWB以产生测试数据来表征电场对第一组印刷电路板（PWB）的影响，使用测试数据确定第一组PWB的介电寿命曲线， 并且基于介电寿命曲线，定义筛选时间和筛选电压以筛选由于电场引起的第二组PWB中的过早故障。

公开(公告)号：US09647444B2

公开(公告)日：2017-05-09

申请号：US14740412

申请日：2015-06-16

Applicant: Hamilton Sundstrand Corporation

Inventor： Harold J. Hansen

IPC: H02H3/00 ,  H02H3/08 ,  H02H7/08 ,  H02P29/032 ,  H02H9/02

CPC classification number: H02H3/08 ,  H02H3/006 ,  H02H7/08 ,  H02H7/0833 ,  H02H9/02 ,  H02H9/025 ,  H02P29/032

Abstract: A current limiting circuit for a motor controller includes a comparator. The comparator has a sensed current input, a current threshold input, and an overcurrent protection trip output. A variable resistance current threshold circuit is connected to the current threshold input. A first controller is connected to the variable resistance current threshold circuit via a plurality of connections. The first controller is configured to control a voltage output of the variable resistance current threshold circuit.

公开(公告)号：US09444376B2

公开(公告)日：2016-09-13

申请号：US13774504

申请日：2013-02-22

Applicant: Hamilton Sundstrand Corporation

Inventor： Harold J. Hansen ,  Robert P. Wichowski ,  Kevin G. Hawes ,  Patrick J. Sears

IPC: H02P6/00 ,  H02P27/04 ,  H02P6/18 ,  H02P7/06 ,  H02P6/12

CPC classification number: H02P6/182 ,  H02P6/12 ,  H02P7/06

Abstract: A sensorless motor controller includes a variable link control, including a radiation-hardened field programmable gate array (FPGA) and a back electromotive force (EMF) decoder circuit. The back EMF decoder infers the position of a rotor of the motor. A filter on the decoder conditions the back EMF signal and has multiple cutoff frequencies which can be dynamically controlled by the FPGA in order to compensate for phase shift in the back EMF signal. The FPGA also controls a variable DC link and its digital speed control loop.

Abstract translation: 无传感器电机控制器包括可变链路控制，包括辐射硬化现场可编程门阵列（FPGA）和反电动势（EMF）解码器电路。 反EMF解码器推断电动机转子的位置。 解码器上的滤波器对反电动势信号进行调节，并具有可由FPGA动态控制的多个截止频率，以补偿反电动势信号中的相移。 FPGA还控制可变直流链路及其数字速度控制回路。