公开(公告)号：US07145302B2

公开(公告)日：2006-12-05

申请号：US10818401

申请日：2004-04-06

申请人： Amit Raja Sanglikar ,  Herman Lucas Norbert Wiegman ,  Charles Michael Stephens ,  Sunit Kumar Saxena ,  Pradeep Vijayan ,  Ajit Wasant Kane

发明人： Amit Raja Sanglikar ,  Herman Lucas Norbert Wiegman ,  Charles Michael Stephens ,  Sunit Kumar Saxena ,  Pradeep Vijayan ,  Ajit Wasant Kane

IPC分类号： H02P25/12 ,  H02K13/00

CPC分类号： H02P6/14 ,  H02P6/10

摘要： A method for driving a DC motor includes generating a first voltage pulse, based on a pre-determined speed input and duty cycle, and configured to generate motor current of reference current value sufficient to achieve a desired speed according to the speed input. Subsequent pulses of the voltage are generated to maintain the current substantially within a range of the reference current. Another method includes sensing and comparing motor current to reference current value and generating an error signal therebetween, which is integrated over time to generate an integrated current error, which is compared with a reference pulse. Thereafter generating applied voltage pulses configured to: switch at each instance of the integrated current error exceeding or becoming less than the reference pulse value; generate a motor current sufficient to achieve a desired speed according to a pre-determined speed input; and having substantially zero average variation from the reference current.

摘要翻译： 一种用于驱动DC电动机的方法包括：基于预定的速度输入和占空比产生第一电压脉冲，并且被配置为产生足以根据速度输入获得期望速度的参考电流值的电动机电流。 产生电压的后续脉冲，以使电流基本上保持在参考电流的范围内。 另一种方法包括感测并比较电动机电流与参考电流值并在其间产生误差信号，其随时间积分以产生与参考脉冲进行比较的积分电流误差。 然后产生施加的电压脉冲，其被配置为：在每一个集成电流误差的情况下切换超过或变得小于参考脉冲值; 产生足以根据预定速度输入达到所需速度的电动机电流; 并且具有与参考电流基本上零的平均变化。

公开(公告)号：US07327587B2

公开(公告)日：2008-02-05

申请号：US10955300

申请日：2004-09-30

申请人： Uday Prakashrao Mhaskar ,  Herman Lucas Norbert Wiegman ,  Amit Raja Sanglikar ,  Bansidhar Jagannath Phansalkar ,  Kamron Mark Wright

发明人： Uday Prakashrao Mhaskar ,  Herman Lucas Norbert Wiegman ,  Amit Raja Sanglikar ,  Bansidhar Jagannath Phansalkar ,  Kamron Mark Wright

IPC分类号： H02M5/458

CPC分类号： H02M5/4585

摘要： An ac-ac power converter system is provided for supplying power to an electrical load. The ac-ac power converter system provides an output voltage having variable amplitude and/or frequency. The ac-ac power converter system includes a boost inductor for applying a discontinuous current to an ac-ac power converter. The ac-ac power converter includes a rectifier circuit comprising of a first set of gate controllable active switches for converting an input ac power to a dc power and an inverter circuit comprising of a second set of gate controllable active switches for converting the dc power to an output ac power. In addition, the ac-ac power converter system includes a switch for switching between a first mode of operation and a second mode of operation. The first set of gate controllable active switches is common between the inverter circuit and the rectifier circuit and is operable at about 50 percent of duty cycle in the first mode of operation while the inverter circuit is a half bridge inverter circuit in the second mode of operation.

摘要翻译： 提供交流电力转换器系统以向电力负载供电。 交流电源转换器系统提供具有可变幅度和/或频率的输出电压。 交流电源转换器系统包括用于向交流电力转换器施加不连续电流的升压电感器。 交流电力转换器包括整流电路，其包括用于将输入交流电力转换为直流电力的第一组栅极可控有源开关和包括第二组栅极可控有源开关的逆变器电路，用于将直流电力转换为 输出交流电源。 此外，交流电力转换器系统包括用于在第一操作模式和第二操作模式之间切换的开关。 第一组栅极可控有源开关在逆变器电路和整流器电路之间是共同的，并且在第一操作模式下以约占占空比的约50％可操作，而逆变器电路是第二操作模式中的半桥逆变器电路 。