公开(公告)号：US20160359440A1

公开(公告)日：2016-12-08

申请号：US15242031

申请日：2016-08-19

Applicant: NIDEC MOTOR CORPORATION

Inventor： GREGORY A. PETERSON ,  MICHAEL P. SULLIVAN ,  STEPHEN J. BURTON ,  GARY E. HORST ,  KEITH I. HOEMANN ,  RICHARD J. FADLER

IPC: H02P6/26 ,  H02P27/08 ,  H02P6/28 ,  H02P25/04 ,  H02P6/22 ,  H02P6/10

CPC classification number: H02P6/26 ,  H02P1/42 ,  H02P6/10 ,  H02P6/22 ,  H02P6/28 ,  H02P25/03 ,  H02P25/04 ,  H02P27/04 ,  H02P27/08

Abstract: Various embodiments of an electric motor and electronic control for an electric motor are disclosed. An exemplary electric motor comprises a single-phase brushless permanent magnet electric motor. In exemplary embodiments, the electronic motor control is configured to commutate an electric motor at a frequency other than line frequency, perform pulse width modulation, and drive the electric motor with a drive waveform that approximates the counter-electromotive force of the motor.

Abstract translation: 公开了电动机和电动机的电子控制的各种实施例。 示例性电动机包括单相无刷永磁电动机。 在示例性实施例中，电子电动机控制被配置为以不同于线路频率的频率对电动机进行换向，执行脉冲宽度调制，并且以接近电动机的反电动势的驱动波形来驱动电动机。

公开(公告)号：US20180123231A1

公开(公告)日：2018-05-03

申请号：US15342843

申请日：2016-11-03

Applicant: NIDEC MOTOR CORPORATION

Inventor： GREGORY A. PETERSON ,  JAMES W. ENSINGER

IPC: H01Q1/46 ,  H02K11/30 ,  H01Q1/50 ,  H01Q1/38 ,  H01Q1/22

CPC classification number: H01Q1/46 ,  H01Q1/2291 ,  H01Q1/38 ,  H01Q1/50 ,  H01Q7/00 ,  H02K11/0094 ,  H02K11/30

Abstract: An antenna assembly comprises a substrate, an impedance matching network, and a driven antenna element. The substrate includes an insulating layer and a first electrically conductive layer disposed on a top surface of the insulating layer. The impedance matching network includes a balun, a first resistor, and a second resistor. The balun converts unbalanced signals to balanced signals and vice-versa. The first and second resistors are electrically connected to the balun. The driven antenna element is formed from the first electrically conductive layer and disposed on the top surface of the insulating layer. The driven antenna element includes a body, a first arm, and a second arm with the first and second arms spaced apart from another, parallel to one another, and physically connected to opposing ends of the body. The first arm is electrically connected to the first resistor. The second arm is electrically connected to the second resistor.

公开(公告)号：US20170284013A1

公开(公告)日：2017-10-05

申请号：US15625245

申请日：2017-06-16

Applicant: NIDEC MOTOR CORPORATION

Inventor： GREGORY A. PETERSON ,  DAVID E. LASS

IPC: H02P1/44 ,  H02P29/024 ,  D06F58/28

CPC classification number: H02P1/44 ,  D06F58/08 ,  D06F58/28 ,  D06F2058/2854 ,  D06F2058/2858 ,  D06F2058/2877 ,  D06F2058/289 ,  H02P1/42 ,  H02P29/0241

Abstract: A system in which the operation of an electric motor is controlled by electronically controlled switches. The system includes the motor having a run winding and a start winding, a heating component, and a motor control subsystem. A control unit closes a first switch to energize the run winding, closes a second switch to energize the start winding, determines based on an amplitude and a lag time of a current flowing through the motor whether the motor has started and is running normally, and if so, opens the second switch to de-energize the start winding and closes a third switch to activate the heating component. The control unit determines whether the motor has started and is running normally by comparing the real time amplitude and lag time of the current to a plurality of stored amplitudes and lag times associated with different operating conditions.