公开(公告)号：US5498907A

公开(公告)日：1996-03-12

申请号：US304620

申请日：1994-09-12

申请人： John J. Tumpey ,  Sampat Shekhawat ,  Gayton L. Silvestro ,  John J. Brogle

发明人： John J. Tumpey ,  Sampat Shekhawat ,  Gayton L. Silvestro ,  John J. Brogle

IPC分类号： H01L25/07 ,  H01L23/34

CPC分类号： H01L25/072 ,  H01L2924/0002 ,  H01L2924/09701 ,  H01L2924/3011

摘要： A plurality of power semiconductor switching devices are included in a circuit module in a pattern whereby interconnecting lead lengths are minimized to provide improved circuit characteristics and to insure uniform current sharing when said devices are paralleled during switch-on, switch-off and steady state conditions.

摘要翻译： 多个功率半导体开关器件以一种图案被包括在电路模块中，从而互连引线长度被最小化以提供改进的电路特性，并且当所述器件在接通，断开和稳态条件下并联时确保均匀的电流共享 。

公开(公告)号：US5550456A

公开(公告)日：1996-08-27

申请号：US281387

申请日：1994-07-27

申请人： Sampat Shekhawat ,  Eli Liebermann ,  William M. Scherzinger ,  Gayton L. Silvestro ,  Nick Suttora ,  David Hodge

发明人： Sampat Shekhawat ,  Eli Liebermann ,  William M. Scherzinger ,  Gayton L. Silvestro ,  Nick Suttora ,  David Hodge

IPC分类号： H02P9/30 ,  H02P9/00

CPC分类号： H02P9/305 ,  H02P2101/30

摘要： A control scheme for a wound rotor synchronous generator whereby feedback signals corresponding to the exciter field current and the generator output voltage potential combine together to control the generator output voltage in such a way that at lower generator speeds and lower load requirements, exciter field current saturation is eliminated by reducing generator output voltage. The generator control scheme includes a circuit for sensing exciter field current in logic cooperation with a circuit for sensing generator voltage. Both sensing circuits regulate the current applied to the exciter field which corresponds to the rectified current applied to the field windings of the power generator. During steady state operations the generator output voltage is regulated using the generator output voltage as a feedback signal. At lower speeds and reduced loads and as the exciter field current approaches the saturation point, the generator output voltage is regulated using the exciter field current as a feedback signal.

摘要翻译： 一种用于绕组转子同步发电机的控制方案，其中对应于励磁机励磁电流和发电机输出电压电位的反馈信号组合在一起以控制发电机输出电压，使得在较低的发电机转速和较低的负载要求下，励磁机励磁电流饱和 通过减少发电机输出电压来消除。 发电机控制方案包括用于感测与用于感测发电机电压的电路逻辑协作的激励器励磁电流的电路。 两个感测电路调节施加到激励器电场的电流，其对应于施加到发电机的励磁绕组的整流电流。 在稳态运行期间，使用发电机输出电压作为反馈信号来调节发电机输出电压。 在较低的速度和降低的负载下，随着励磁电流的电流接近饱和点，发电机输出电压使用激励器励磁电流作为反馈信号进行调节。