公开(公告)号：US09362855B2

公开(公告)日：2016-06-07

申请号：US14247817

申请日：2014-04-08

Applicant: STMICROELECTRONICS, INC. ,  STMICROELECTRONICS S.r.l.

Inventor： Frederic Bonvin ,  Agostino Mirabelli ,  Maurizio Nessi

IPC: H02P6/16 ,  H02P6/18 ,  H02P6/10 ,  G11B19/20 ,  H02P6/08

CPC classification number: H02P6/10 ,  G11B19/20 ,  H02P6/085 ,  H02P6/18

Abstract: An embodiment of a motor controller includes first and second supply nodes, a motor-coil node, an isolator, a motor driver, and a motor position signal generator. The isolator is coupled between the first and second supply nodes, and the motor driver is coupled to the second supply node and to the motor-coil node. The motor position signal generator is coupled to the isolator and is operable to generate, in response to the isolator, a motor-position signal that is related to a position of a motor having at least one coil coupled to the motor-coil node. By generating the motor-position signal in response to the isolator, the motor controller or another circuit may determine the at-rest or low-speed position of a motor without using an external coil-current-sense circuit.

Abstract translation: 电动机控制器的实施例包括第一和第二供电节点，电动机线圈节点，隔离器，电动机驱动器和电动机位置信号发生器。 隔离器耦合在第一和第二电源节点之间，电动机驱动器耦合到第二电源节点和电动机线圈节点。 电动机位置信号发生器耦合到隔离器并且可操作以响应于隔离器产生与具有耦合到电动机线圈节点的至少一个线圈的电动机的位置有关的电动机位置信号。 通过响应于隔离器产生电动机位置信号，电动机控制器或另一电路可以在不使用外部线圈电流检测电路的情况下确定电动机的静止或低速位置。