发明名称 |
METHOD AND CIRCUIT ARRANGEMENT FOR SENSORLESS MOTOR LOAD DETECTION AND FOR CONTROLLING THE MOTOR CURRENT IN ACCORDANCE WITH THE LOAD VALUE IN STEPPER MOTORS |
摘要 |
<p>A method and a circuit arrangement are provided which enable a mechanical load applied to the motor shaft of a stepper motor (M) or a load angle of the stepper motor to be detected in a sensorless manner. A method and circuit arrangement are also provided which enable the motor current(s) of a stepper motor to be controlled in accordance with the load value such that the load angle is as high as possible without risking step losses, in order to maintain the current consumption of the motor as low as possible. This is achieved according by evaluating the temporal duration of the ON- and the FD-phases during the chopper control of the motor.</p> |
申请公布号 |
EP2474089(B1) |
申请公布日期 |
2013.12.18 |
申请号 |
EP20100772955 |
申请日期 |
2010.09.06 |
申请人 |
TRINAMIC MOTION CONTROL GMBH & CO. KG |
发明人 |
DWERSTEG, BERNHARD;LARSSON, LARS |
分类号 |
H02P8/12;H02P8/14;H02P8/16;H02P8/34 |
主分类号 |
H02P8/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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