公开(公告)号：WO2006068714B1

公开(公告)日：2006-08-17

申请号：PCT/US2005040321

申请日：2005-11-08

Applicant: INT RECTIFIER CORP ,  TAKAHASHI TOSHIO ,  LI YONG

Inventor： TAKAHASHI TOSHIO ,  LI YONG

IPC: G05F1/40

CPC classification number: G05F1/70 ,  H02M1/4225 ,  Y02B70/126

Abstract: A circuit for providing power factor correction includes a boost converter circuit with a boost inductance and a power factor correction switch and a control circuit. The control circuit provides a pulse width modulated signal to control the on time of a PFC switch, and also includes a power factor correction pulse width modulated device receiving as inputs a rectified AC input voltage, a DC bus voltage, a signal proportional to the current through the inductor and a reference current signal. The power factor correction pulse width modulated device also includes a pulse width modulated generator operable to provide the pulse width modulated signal to control the on time of the PFC circuit and a pulse width modulated blanking device operable to provide an enable/disable signal to disable the pulse width modulated generator when predetermined conditions are met.

Abstract translation: 用于提供功率因数校正的电路包括具有升压电感的升压转换器电路和功率因数校正开关以及控制电路。 控制电路提供脉宽调制信号来控制PFC开关的接通时间，并且还包括功率因数校正脉冲宽度调制装置，其接收整流的AC输入电压，DC总线电压，与电流成正比的信号 通过电感和参考电流信号。 功率因数校正脉宽调制装置还包括脉冲宽度调制发生器，其可操作以提供脉宽调制信号以控制PFC电路的导通时间，以及脉宽调制消隐装置，其可操作以提供使能/禁用信号以禁用 当满足预定条件时，脉宽调制发生器。

公开(公告)号：WO2006004641A3

公开(公告)日：2006-06-08

申请号：PCT/US2005022689

申请日：2005-06-28

Applicant: INT RECTIFIER CORP ,  TAKAHASHI TOSHIO ,  LI YONG

Inventor： TAKAHASHI TOSHIO ,  LI YONG

IPC: G05F1/40 ,  H02M1/42

CPC classification number: H02M1/4225 ,  Y02B70/126

Abstract: A circuit for providing power factor correction comprising a boost converter circuit having a boost inductance and a power factor correction switch coupled in series with the boost inductance, the boost inductance and power factor correction switch being coupled across the output of a rectifier being supplied with AC power from an AC line, the boost converter circuit further comprising a boost diode coupled to a junction between the inductor and the switch, an output of the boost diode coupled to an output capacitor, a DC bus voltage being provided across the output capacitor, further comprising a control circuit receiving as inputs a rectified AC input voltage from the rectifier, a signal proportional to current through the inductor and the DC bus voltage across the capacitor, and wherein the control circuit provides a pulse width modulated signal to control the on time of the PFC switch, further comprising an enable/disable circuit receiving as inputs the rectified AC input voltage and the DC bus voltage, the circuit instantaneously comparing the rectified AC input voltage and the DC bus voltage and controlling the control circuit whereby the control circuit provides the pulse width modulated signal to control the PFC switch when the rectified AC input voltage is less than the DC bus voltage and disables the generation of the pulse width modulated signal to the PFC switch when the rectified AC input voltage is greater than DC bus voltage.

Abstract translation: 一种用于提供功率因数校正的电路，其包括具有升压电感的升压转换器电路和与升压电感串联耦合的功率因数校正开关，升压电感和功率因数校正开关耦合在提供有AC的整流器的输出端 所述升压转换器电路进一步包括耦合到所述电感器和所述开关之间的接点的升压二极管，所述升压二极管的输出耦合到输出电容器，在所述输出电容器两端提供DC总线电压，进一步包括： 包括控制电路，该控制电路接收来自整流器的经整流的AC输入电压作为输入，与通过电感器的电流和电容器两端的DC总线电压成比例的信号，并且其中控制电路提供脉宽调制信号以控制 所述PFC开关还包括启用/禁用电路，所述启用/禁用电路接收经整流的AC输入电压a作为输入 以及直流总线电压，该电路瞬时比较整流后的交流输入电压和直流总线电压并控制控制电路，由此当整流的交流输入电压小于时，控制电路提供脉冲宽度调制信号以控制PFC开关 DC总线电压，并且当整流的AC输入电压大于DC总线电压时禁止向PFC开关产生脉宽调制信号。

公开(公告)号：WO03094330B1

公开(公告)日：2005-01-13

申请号：PCT/US0313499

申请日：2003-04-29

Applicant: INT RECTIFIER CORP ,  TAKAHASHI TOSHIO ,  PELLY BRIAN

Inventor： TAKAHASHI TOSHIO ,  PELLY BRIAN

IPC: H02M1/12 ,  H02M1/14 ,  H02M1/15 ,  H02M1/44 ,  H02M5/458 ,  H03H11/04

CPC classification number: H02M1/44 ,  H02M1/12 ,  H02M1/14 ,  H02M1/15 ,  H02M5/458 ,  H02M2001/123

Abstract: An active EMI filter having a rectifier coupled to an AC network, the rectifier supplying DC power to a DC bus, and the DC bus feeding an inverter stage for providing AC power to a load. The load having a ground return line (GND) to a ground connection of the AC network. The active filter having a transistor switching stage (Q1, Q2) coupled across the DC bus. A current sensor (G1, G2) coupled to the DC bus for sensing the common mode current flowing in the DC bus, and the current sensor (G1, G2) having inputs coupled to respective legs of the DC bus and an output driving the transistor switching stage (Q1, Q2). A capacitor coupling the transistor switching stage (Q1, Q2) and the ground return line (GND). The capacitor providing a cancellation current to the ground return line (GND) from the transistor switching stage (Q1, Q2) to substantially cancel the common mode current in the ground return line (GND).

Abstract translation: 具有耦合到AC网络的整流器的有源EMI滤波器，整流器向DC总线提供DC电力，以及馈送用于向负载提供AC电力的逆变器级的DC总线。 负载具有到AC网络的接地连接的接地返回线（GND）。 有源滤波器具有耦合在DC总线上的晶体管切换级（Q1，Q2）。 耦合到DC总线的电流传感器（G1，G2）用于感测在DC总线中流动的共模电流，并且具有耦合到DC总线的相应支路的输入端的电流传感器（G1，G2）和驱动晶体管 开关级（Q1，Q2）。 耦合晶体管开关级（Q1，Q2）和接地回路（GND）的电容器。 电容器从晶体管开关级（Q1，Q2）向接地返回线（GND）提供消除电流，以基本上消除接地回路（GND）中的共模电流。

公开(公告)号：WO2006088821A3

公开(公告)日：2007-04-12

申请号：PCT/US2006005092

申请日：2006-02-14

Applicant: INT RECTIFIER CORP ,  GALLI GIOVANNI ,  TAKAHASHI TOSHIO

Inventor： GALLI GIOVANNI ,  TAKAHASHI TOSHIO

IPC: H02P3/00 ,  H02M5/40 ,  H02P27/00

CPC classification number: D06F37/42 ,  H02P25/024 ,  H02P29/0241

Abstract: A circuit for protecting against controller failure wherein the controller provides control signals for controlling a DC to AC inverter fed by a DC bus and driving a permanent magnet motor, the circuit comprising a first circuit for monitoring the DC bus voltage and, in the event the DC bus voltage exceeds a first threshold due to a counter EMF generated by the motor, for producing a signal to the controller to provide a switch state to the inverter whereby the counter EMF is dissipated substantially in a motor circuit resistance of the permanent magnet motor as a result of a short circuit condition provided by the switch state of the inverter, thereby preventing the DC bus voltage of the inverter from exceeding the first threshold and causing the permanent magnet motor speed to be reduced.

Abstract translation: 一种用于防止控制器故障的电路，其中所述控制器提供用于控制由DC总线馈送的DC至AC逆变器并且驱动永磁电动机的控制信号，所述电路包括用于监视DC总线电压的第一电路， 直流母线电压由于电动机产生的反电动势而超过第一阈值，用于向控制器产生信号以向变频器提供开关状态，从而使逆电动势基本上以永磁电动机的电动机回路电阻耗散 是由逆变器的开关状态提供的短路状态的结果，从而防止逆变器的直流母线电压超过第一阈值，并且使永磁电动机的速度降低。

公开(公告)号：WO2004012238A3

公开(公告)日：2004-12-09

申请号：PCT/US0323835

申请日：2003-07-29

Applicant: INT RECTIFIER CORP

Inventor： LI YONG P ,  TAKAHASHI TOSHIO

IPC: H02M7/12 ,  H02M7/5387 ,  H02P23/00 ,  H02M7/537

CPC classification number: H02M7/5387 ,  H02P23/26 ,  H02P2201/15 ,  Y02P80/112

Abstract: A power inverter control adjusts input power to track with output power to reduce energy handling requirements for an inverter DC bus. Input power to the power inverter circuit is measured and compared with a measurement of inverter output power. The comparison result is applied to a power factor correction circuit to adjust input power to track with output power, while obtaining a good power factor for the power inverter circuit. The energy requirements and ripple voltages or ripple currents on the DC bus are reduced, leading to a reduction in rating specifications for passive energy storage elements on the DC bus.

Abstract translation: 逆变器控制器通过调节输入功率来跟踪输出功率，以降低逆变器直流母线的能量处理要求。 测量功率逆变器电路的输入功率，并与逆变器输出功率的测量结果进行比较。 比较结果应用于功率因数校正电路，以调整输入功率以跟踪输出功率，同时为功率逆变器电路获得良好的功率因数。 DC总线上的能量需求和纹波电压或纹波电流减少，导致DC总线上无源能源存储元件的额定值规格降低。

公开(公告)号：WO2006074120A3

公开(公告)日：2009-04-16

申请号：PCT/US2006000005

申请日：2006-01-03

Applicant: INT RECTIFIER CORP ,  TAKAHASHI TOSHIO

Inventor： TAKAHASHI TOSHIO

IPC: H02P23/00

CPC classification number: H02M7/53873 ,  H02P27/12 ,  Y10S388/901

Abstract: Apparatus for reconstructing the phase currents of a multiphase load driven by a multiphase inverter fed by a DC link and controlled by a PWM controller, the apparatus including a sensor in the DC link, first and second sampling arrangements for sampling the current in the DC link by obtaining an output from said sensor, the first sampling arrangement obtaining a first sample of the current in the DC link during a first time period corresponding to a first switching pattern of said multiphase inverter and storing said first sample; the second sampling arrangement obtaining a second sample of the current in the DC link during a second time period after said first time period and corresponding to a second switching pattern of said multiphase inverter and storing said second sample; an A/D converter for converting said first sample to a digital signal during a time period after said first time period and for converting said second sample to a digital signal during a following third time period.

Abstract translation: 用于重建由DC链路馈送并由PWM控制器馈送并由PWM控制器馈送的多相逆变器驱动的多相负载的相电流的装置，该装置包括在DC链路中的传感器，用于对DC链路中的电流进行采样的第一和第二采样装置 通过从所述传感器获得输出，第一采样装置在对应于所述多相逆变器的第一切换模式的第一时间段期间获得DC链路中的电流的第一采样并存储所述第一采样; 所述第二采样装置在所述第一时间段之后的第二时间段期间获得DC链路中的电流的第二采样，并且对应于所述多相逆变器的第二开关模式并存储所述第二采样; A / D转换器，用于在所述第一时间段之后的时间段期间将所述第一样本转换为数字信号，并在随后的第三时间段期间将所述第二样本转换为数字信号。

公开(公告)号：WO2005120202A3

公开(公告)日：2007-03-29

申请号：PCT/US2005020005

申请日：2005-06-07

Applicant: INT RECTIFIER CORP ,  BOCCHIOLA CESARE ,  GRASSO MASSIMO ,  TAKAHASHI TOSHIO

Inventor： BOCCHIOLA CESARE ,  GRASSO MASSIMO ,  TAKAHASHI TOSHIO

IPC: H02M7/04 ,  H02M1/42

CPC classification number: H02M1/4225 ,  H02M1/4208 ,  Y02B70/126

Abstract: A power factor correction circuit for driving a switch of a boost type converter circuit having an AC line frequency input, comprising a sense circuit for sensing and comparing the output voltage of the boost type converter circuit to a reference voltage, a circuit responsive to the output of the sense circuit for providing a drive signal for driving the switch, wherein the drive signal comprises a pulsed signal comprising a pulse grouping during each half cycle of the AC line frequency comprising at least one pulse wherein the number of pulses and frequency of the pulses of the pulse grouping changes with the output of the sense circuit up to a threshold value with the pulse width of the pulses being substantially constant; and when the output of the sense circuit has reached the threshold value, the pulse width of the pulses of the pulse grouping are varied in accordance with the output of the sense circuit.

Abstract translation: 一种用于驱动具有AC线路频率输入的升压型转换器电路的开关的功率因数校正电路，包括用于感测和比较升压型转换器电路的输出电压与参考电压的感测电路，响应于输出的电路 用于提供用于驱动开关的驱动信号的感测电路，其中所述驱动信号包括脉冲信号，所述脉冲信号包括在AC线频率的每个半周期期间的脉冲分组，其包括至少一个脉冲，其中脉冲数和脉冲频率 脉冲组合的脉冲宽度随着脉冲宽度基本恒定而随着感测电路的输出而变化到阈值， 并且当感测电路的输出达到阈值时，脉冲组合的脉冲的脉冲宽度根据感测电路的输出而变化。

公开(公告)号：WO2004099885A3

公开(公告)日：2006-05-26

申请号：PCT/US2004014133

申请日：2004-05-05

Applicant: INT RECTIFIER CORP ,  TAKAHASHI TOSHIO

Inventor： TAKAHASHI TOSHIO

IPC: G05B11/32 ,  G05B20060101 ,  G05B1/02 ,  G05B11/28 ,  G05B19/10 ,  G05B19/19

CPC classification number: G05B19/19 ,  G05B2219/42238 ,  G05B2219/50216

Abstract: A multiple axis servo control implements a multi-tasking PWM control unit to provide PWM signals for multiple axes in a single unit. A time slice mechanism provides axis selection signals based on a system clock signal to permit control parameters of the selected axis to be processed to control the selected motor drive axis. The single unit PWM control mechanism eliminates complex and costly multiple axis networks typically associated with independent servo motor controls for each axis in a multi-axis system. A single PWM unit implementation also permits the reduction of components for closed loop current control and closed loop velocity control in the multi-axis servo control system.

Abstract translation: 多轴伺服控制器实现了多任务PWM控制单元，以在单个单元中为多个轴提供PWM信号。 时间片机制基于系统时钟信号提供轴选择信号，以允许处理所选择的轴的控制参数以控制所选择的电动机驱动轴。 单个单元PWM控制机制消除了复杂且昂贵的多轴网络，通常与多轴系统中每个轴的独立伺服电机控制相关联。 单个PWM单元实现还允许在多轴伺服控制系统中减少闭环电流控制和闭环速度控制的组件。

公开(公告)号：EP1470634A4

公开(公告)日：2006-03-15

申请号：EP03701235

申请日：2003-01-03

Applicant: INT RECTIFIER CORP

Inventor： TAKAHASHI TOSHIO ,  HONDA JUN ,  PELLY BRIAN

IPC: H02M1/15 ,  H03H11/04 ,  H02M1/12 ,  H02M1/44 ,  H02M5/458

CPC classification number: H02M1/15 ,  H02M1/44 ,  H02M5/458 ,  H02M2001/123

Abstract: An active EMI filter for reducing common mode current in a circuit comprising: a transistor switching stage (Q1, Q2) coupled across a DC bus, a current sensor (CT) coupled to the DC bus for sensing the common mode current flowing in the DC bus and proportional to the common mode current flowing in the ground return line from or to an AC load and having an output driving the transistor switching stage; a capacitor coupling said transistor switching stage and said ground return line and wherein said current sensor and said switching stage are coupled in a feed forward arrangement whereby the switching stage is coupled across said DC bus between said rectifier and said current sensor, wherein said capacitor provides a cancellation current to said ground return line from said transistor switching stage to substantially cancel the common mode current in said ground return line.

Abstract translation: 一种有源EMI滤波器，用于降低电路中的共模电流，该电路包括耦合到AC网络的整流器，该整流器向DC总线提供DC电力，该DC总线馈送用于向负载提供AC电力的逆变器级，负载具有 所述有源滤波器包括：耦合在所述DC总线上的晶体管开关级，耦合到所述DC总线的电流传感器，用于感测在所述DC总线中流动的共模电流并与所述DC总线成比例 共模电流在地线返回线路从负载流向负载，电流传感器具有耦合到DC总线的相应支路的输入端和驱动晶体管开关级的输出端，晶体管开关级包括由所述输出端驱动的两个晶体管 电流传感器，其中根据所述DC总线中的共模电流的方向，所述晶体管中的一个由所述电流传感器输出导通，耦合所述transisto的电容器 r开关级和所述接地返回线，并且其中所述电流传感器和所述开关级以前馈布置耦合，由此开关级跨过所述整流器和所述电流传感器之间的所述DC总线耦合，所述电容器向所述电流传感器提供抵消电流 所述晶体管切换级和所述电流传感器具有近似一致的幅度增益，所述电流传感器包括具有初级串联连接的电流互感器 与所述DC总线的相应支路相连，所述晶体管开关级的两个晶体管包括两个互补型晶体管，这两个互补型晶体管被耦合，使得每个晶体管的相应主电极以公共连接耦合在一起，每个晶体管的另一对应主电极耦合到 所述c中的每一个的相应次级 并且其中所述晶体管的控制电极耦合到所述DC总线的相应支路。

公开(公告)号：EP1540806A4

公开(公告)日：2008-09-03

申请号：EP03771906

申请日：2003-07-25

Applicant: INT RECTIFIER CORP

Inventor： HO EDDY YING-YIN ,  LI YONG PERRY ,  HONDA JUN ,  TAM DAVID ,  TAKAHASHI TOSHIO

IPC: H02M1/08 ,  H02M1/44 ,  H02M5/458 ,  H02P27/06 ,  H03K17/16 ,  H02M7/5387 ,  H02M7/12

CPC classification number: H02M1/44 ,  H02M5/458 ,  H02M2001/0029 ,  H02M2001/123 ,  H03K17/163 ,  H03K17/168

Abstract: A motor drive system (10) control provides global closed loop feedback to cooperatively operate system components to adaptively reduce noise and provide noise cancellation feedback. An active EMI filter (12) reduces differential and common mode noise on an input and provides a noise level indication to a system controller (11). Power switches in both a power converter (14) and power inverter (16) are cooperatively controlled with dynamic dv/dt control to reduce switching noise according to a profile specified by the controller 11). The dv/dt control is provided as an analog signal to a high voltage IC and codified as a pulse width for a level shifting circuit supplying control signals to the high voltage gate drive (18). A noise extraction circuit and technique obtain fast noise sampling to permit noise cancellation and adaptive noise reduction.