Invention Grant
- Patent Title: Current limiting for a motor winding
- Patent Title (中): 电机绕组限流
-
Application No.: US12940438Application Date: 2010-11-05
-
Publication No.: US08878475B2Publication Date: 2014-11-04
- Inventor: Frederic Bonvin , Diego Armaroli
- Applicant: Frederic Bonvin , Diego Armaroli
- Applicant Address: US TX Coppell IT Agrate Brianza
- Assignee: STMicroelectronics, Inc.,STMicroelectronics S.R.L.
- Current Assignee: STMicroelectronics, Inc.,STMicroelectronics S.R.L.
- Current Assignee Address: US TX Coppell IT Agrate Brianza
- Agency: Seed IP Law Group PLLC
- Main IPC: H02H7/09
- IPC: H02H7/09 ; G11B19/28

Abstract:
Techniques and apparatus for limiting the current through a motor, such as a motor for rotating a rotatable element of a hard drive. The current can be limited based on a threshold. A first threshold value can be set for a first time period. A second threshold value can be set for a second time period in which the current through the motor rises. The second threshold value is lower than the first threshold value. A spike in the supply current upon accelerating the rotatable element of the motor can thereby be reduced or eliminated.
Public/Granted literature
- US20120112681A1 CURRENT LIMITING FOR A MOTOR WINDING Public/Granted day:2012-05-10
Information query