发明名称 |
Load dump transient voltage controller |
摘要 |
A generator field regulator circuit communicates with a field winding of a Lundell machine and includes a first transistor. A second transistor has a source that communicates with a drain of the first transistor and a drain that communicates with one end of the field winding. A free-wheeling diode communicates with the drain of the first transistor and a source of the second transistor. An overvoltage detection circuit modulates a gate of the second transistor. A pulse width modulation (PWM) circuit modulates a gate of the first transistor to maintain generator rectified voltage at a nominal level. The overvoltage detection circuit outputs an overvoltage shutdown signal to the PWM circuit during a full-load dump mode to turn off the first transistor, which turns off the second transistor. The overvoltage shutdown signal is disabled when a terminal voltage of a generator falls below a predetermined voltage.
|
申请公布号 |
US6876177(B2) |
申请公布日期 |
2005.04.05 |
申请号 |
US20030357970 |
申请日期 |
2003.02.04 |
申请人 |
GENERAL MOTORS CORPORATION |
发明人 |
NAMUDURI CHANDRA S.;REYNOLDS MICHAEL G. |
分类号 |
H02H7/06;(IPC1-7):H02P9/30;H02J7/10;H02J7/14;H02P9/10 |
主分类号 |
H02H7/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|