发明名称 |
Back EMF reduction in a storage drive using pulse width modulation in a closed loop motor control system |
摘要 |
A storage drive implements a method for a BEMF voltage reduction during a deceleration period of an electric motor of the storage drive. In operation, the electric motor is disconnected from a power supply during an entirety of the deceleration period of the electric motor to prevent any flow of a BEMF current into the power supply, and the electric motor is connected to a power return during a segment or an entirety of the deceleration period of the electric motor to dissipate any BEMF voltage within the electric motor.
|
申请公布号 |
US7675255(B2) |
申请公布日期 |
2010.03.09 |
申请号 |
US20070669615 |
申请日期 |
2007.01.31 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
BATES ALLEN K.;BUI NHAN XUAN;HANCOCK REED A.;RUSSO LOUIS P. |
分类号 |
H02P3/00 |
主分类号 |
H02P3/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|