公开(公告)号：US20080180164A1

公开(公告)日：2008-07-31

申请号：US12055982

申请日：2008-03-26

Applicant: Brian R. Pelly

Inventor： Brian R. Pelly

IPC: H04B1/10 ,  H02M1/12 ,  H02M1/14

CPC classification number: H02M1/12 ,  H02M5/458 ,  H02M2001/123 ,  H02P29/50 ,  H02P2201/07

Abstract: An active filter for reducing the common mode current in a pulse width modulated drive circuit driving a load, said drive circuit comprising an a-c source, a rectifier connected to said a-c source and producing a rectified output voltage connected to a positive d-c bus and a negative d-c bus, a PWM inverter having input terminals coupled to said positive d-c bus and negative d-c bus and having a controlled a-c output, a load driven by said a-c output of said PWM inverter, a ground wire extending from said load, and a current sensor for measuring the common mode current in said drive circuit, said current sensor producing an output current related to said common mode current; said active filter comprising a first and second transistor, each having first and second main electrodes and a control electrode, and an amplifier circuit driving said transistors; said first electrode of said first and second transistor coupled to a common node, said second electrodes of said first and second transistors being coupled to said positive d-c bus and said negative d-c respectively; said amplifier circuit having an input coupled to said output of said current sensor and having an output connected to said control electrodes; and a d-c isolating capacitor connecting said common node of said first electrode of said first and second transistors to said ground wire; and wherein said current sensor is a current transformer having a primary winding connected in series with said ground wire and a secondary winding connected as the signal input to the amplifier circuit.

Abstract translation: 一种有源滤波器，用于降低驱动负载的脉宽调制驱动电路中的共模电流，所述驱动电路包括交流电源，连接到所述交流源的整流器，并产生与正直流母线相连的整流输出电压和负的 DC总线，PWM逆变器，其具有耦合到所述正直流总线和负直流总线的输入端子，并且具有受控的交流输出，由所述PWM逆变器的所述交流输出驱动的负载，从所述负载延伸的接地线，以及电流传感器 用于测量所述驱动电路中的共模电流，所述电流传感器产生与所述共模电流相关的输出电流; 所述有源滤波器包括第一和第二晶体管，每个具有第一和第二主电极和控制电极，以及驱动所述晶体管的放大器电路; 所述第一和第二晶体管的所述第一电极耦合到公共节点，所述第一和第二晶体管的所述第二电极分别耦合到所述正d-c总线和所述负d-c; 所述放大器电路具有耦合到所述电流传感器的所述输出并具有连接到所述控制电极的输出的输入; 以及将所述第一和第二晶体管的所述第一电极的所述公共节点连接到所述接地线的d-c隔离电容器; 并且其中所述电流传感器是具有与所述接地线串联连接的初级绕组的电流互感器和作为输入到放大器电路的信号的次级绕组。

公开(公告)号：US20070120607A1

公开(公告)日：2007-05-31

申请号：US11619481

申请日：2007-01-03

Applicant: Brian Pelly

Inventor： Brian Pelly

IPC: H03F3/191

CPC classification number: H02M1/12 ,  H02M5/458 ,  H02M2001/123 ,  H02P29/50 ,  H02P2201/07

Abstract: An active filter for reducing the common mode current in a pulse width modulated drive circuit driving a load said drive circuit comprising an a-c source, a rectifier connected to said a-c source and producing a rectified output voltage connected to a positive d-c bus and a negative d-c bus, a PWM inverter having input terminals coupled to said positive d-c bus and negative d-c bus and having a controlled a-c output, a load driven by said a-c output of said PWM inverter, a ground wire extending from said load, and a current sensor for measuring the common mode current in said drive circuit, said current sensor producing an output current related to said common mode current; said active filter comprising a first and second transistor, each having first and second main electrodes and a control electrode, and an amplifier circuit driving said transistors; said first electrode of said first and second transistor coupled to a common node, said second electrodes of said first and second transistors being coupled to said positive d-c bus and said negative d-c respectively; said amplifier circuit having an input coupled to said output of said current sensor and having an output connected to said control electrodes; and a d-c isolating capacitor connecting said common node of said first electrode of said first and second transistors to said ground wire; and wherein said current sensor is a current transformer having a primary winding connected in series with said ground wire and a secondary winding connected as the signal input to the amplifier circuit.

Abstract translation: 一种有源滤波器，用于降低脉冲宽度调制驱动电路中的共模电流，驱动负载所述驱动电路，所述驱动电路包括交流电源，连接到所述交流源的整流器，并产生连接到正直流母线和负直流的整流输出电压 总线，具有耦合到所述正直流总线和负直流总线并具有可控交流输出的输入端的PWM逆变器，由所述PWM逆变器的所述交流输出驱动的负载，从所述负载延伸的接地线;以及电流传感器， 测量所述驱动电路中的共模电流，所述电流传感器产生与所述共模电流相关的输出电流; 所述有源滤波器包括第一和第二晶体管，每个具有第一和第二主电极和控制电极，以及驱动所述晶体管的放大器电路; 所述第一和第二晶体管的所述第一电极耦合到公共节点，所述第一和第二晶体管的所述第二电极分别耦合到所述正d-c总线和所述负d-c; 所述放大器电路具有耦合到所述电流传感器的所述输出并具有连接到所述控制电极的输出的输入; 以及将所述第一和第二晶体管的所述第一电极的所述公共节点连接到所述接地线的d-c隔离电容器; 并且其中所述电流传感器是具有与所述接地线串联连接的初级绕组的电流互感器和作为输入到放大器电路的信号的次级绕组。

公开(公告)号：US20070058404A1

公开(公告)日：2007-03-15

申请号：US10562930

申请日：2005-02-09

Applicant: Hideaki Yaguchi

Inventor： Hideaki Yaguchi

IPC: H02M7/5387

CPC classification number: H02M3/1588 ,  H02J7/0029 ,  H02M1/32 ,  H02M1/36 ,  H02M2001/007 ,  H02P5/74 ,  H02P2201/07 ,  Y02B70/1466

Abstract: A control device (30) calculates an upper limit value of a duty ratio (DR_Ulim) according to a voltage (Vm) from a voltage sensor (13) and a threshold voltage (OVb) when an overvoltage is determined to have been applied to a battery (B), and determines a duty ratio (DR) for providing switching control to NPN transistors (Q1, Q2) in a range lower than the calculated upper limit value of the duty ratio (DR_Ulim). The control device (30) uses the determined duty ratio (DR) to provide switching control to the NPN transistors (Q1, Q2). Then, an up-convener (12) converts a direct current voltage (Vb) from the battery (B) into the output voltage (Vm) such that an overvoltage is not applied to the battery (B).

Abstract translation: 控制装置（30）根据来自电压传感器（13）的电压（Vm）和当将过电压确定为施加到电压传感器（13）时的阈值电压（OVb））来计算占空比（DR_Ulim）的上限值 电池（B），并且确定用于在低于所计算的占空比的上限值（DR_Ulim）的范围内向NPN晶体管（Q1，Q2）提供开关控制的占空比（DR）。 控制装置（30）使用确定的占空比（DR）来向NPN晶体管（Q1，Q2）提供开关控制。 然后，上升电路（12）将来自电池（B）的直流电压（Vb）转换为输出电压（Vm），使得不向电池（B）施加过电压。

公开(公告)号：US06963145B2

公开(公告)日：2005-11-08

申请号：US10068391

申请日：2002-02-06

Applicant: Joseph B. Richey, II

Inventor： Joseph B. Richey, II

IPC: B60L11/00 ,  B60L1/00

CPC classification number: B60L11/00 ,  H02P2201/07 ,  H02P2201/09 ,  H02P2201/11 ,  Y02T10/646

Abstract: A system and method for driving an electric vehicle is provided. The system has, for example, a power source generating a voltage, a voltage converter, a control system, and one or more motors for driving or propelling the vehicle. The voltage converter is configured to accept an input voltage and generate an output voltage, which is different from the input voltage. The power source provides the input voltage to the voltage converter. A switch is further provided to switch the delivery of power to the control system between a power source voltage and an increased voltage derived from the voltage converter.

Abstract translation: 提供一种用于驱动电动车辆的系统和方法。 该系统具有例如产生电压的电源，电压转换器，控制系统以及用于驱动或推进车辆的一个或多个电动机。 电压转换器被配置为接受输入电压并产生不同于输入电压的输出电压。 电源为电压转换器提供输入电压。 还提供开关，用于在电源电压和从电压转换器导出的增加的电压之间切换向控制系统的电力输送。

公开(公告)号：US20040207463A1

公开(公告)日：2004-10-21

申请号：US10843538

申请日：2004-05-10

Applicant: International Rectifier Corporation

Inventor： Brian R. Pelly

IPC: G06G007/16

CPC classification number: H02M1/12 ,  H02M5/458 ,  H02M2001/123 ,  H02P29/50 ,  H02P2201/07

Abstract: An active filter for reducing the common mode current in a pulse width modulated drive circuit driving a load, said drive circuit comprising an a-c source, a rectifier connected to said a-c source and producing a rectified output voltage connected to a positive d-c bus and a negative d-c bus, a PWM inverter having input terminals coupled to said positive d-c bus and negative d-c bus and having a controlled a-c output, a load driven by said a-c output of said PWM inverter, a ground wire extending from said load, and a current sensor for measuring the common mode current in said drive circuit in said ground wire, said current sensor producing an output current related to said common mode current, said active filter comprising a first and second MOSFET transistor, each having first and second main electrodes and a control electrode, and an amplifier driving a respective one of the transistors; said first electrode of said first and second transistor coupled to a common node, said second electrodes of said first and second transistors being coupled to said positive d-c bus and said negative d-c respectively; each of said amplifiers having an input coupled to said output of said current sensor and each having an output connected to a respective one of said control electrodes; and a d-c isolating capacitor connecting said common node of said first electrode of said first and second transistors to said ground wire.

公开(公告)号：US20040165868A1

公开(公告)日：2004-08-26

申请号：US10484385

申请日：2004-01-21

Inventor： Eiji Sato ,  Sumikazu Shamoto ,  Masayuki Komatsu ,  Ryoji Oki ,  Makoto Nakamura

IPC: H02P005/06

CPC classification number: H02M7/48 ,  B60L50/51 ,  H02M2001/007 ,  H02P27/06 ,  H02P27/08 ,  H02P27/14 ,  H02P2201/03 ,  H02P2201/07 ,  Y02T10/642 ,  Y02T10/7005

Abstract: On end of a reactor (L1) is connected to a positive electrode of a battery (B1) and the other end is connected to a power line via a transistor (Q1) and to the ground via a transistor (Q2). By PWM control of the transistors (Q1, Q2), an arbitrary increased voltage is obtained in the power line. It is possible to obtain an optimal inverter input voltage (power line voltage) according to the motor drive state, thereby increasing efficiency. Thus, it is possible to optimize the inverter input voltage according to the motor drive condition.

Abstract translation: 在电抗器（L1）的一端连接到电池（B1）的正电极，另一端通过晶体管（Q1）连接到电力线，并通过晶体管（Q2）连接到地。 通过晶体管（Q1，Q2）的PWM控制，在电力线中获得任意增加的电压。 可以根据电动机驱动状态获得最佳的逆变器输入电压（电力线电压），从而提高效率。 因此，可以根据电动机驱动条件来优化逆变器输入电压。

公开(公告)号：US20030111972A1

公开(公告)日：2003-06-19

申请号：US10255253

申请日：2002-09-26

Inventor： Thomas Strothmann ,  Joseph B. Richey

IPC: H02P005/00

CPC classification number: B60L11/00 ,  H02P2201/07 ,  H02P2201/09 ,  H02P2201/11 ,  Y02T10/642

Abstract: An electric motor drive controller for an electric vehicle driven by a motor with permanent excitation and powered by an energy source comprises: a power control stage coupleable to the motor for generating a drive signal at a voltage to control the motor at a desired speed; a voltage control circuit connectable between the energy source and the power control stage for controlling the voltage of the drive signal at a first voltage potential in one operating mode and at a voltage potential greater than the first voltage potential in another operating mode; and a mode controller for controlling the operating modes of the voltage control circuit based on properties of the drive signal.

Abstract translation: 一种用于由具有永久励磁的电动机驱动并由能量源供电的电动车辆的电动机驱动控制器，包括：电力控制级，其可耦合到所述电动机，以产生以电压控制所述电动机的驱动信号; 能够在能量源和功率控制级之间连接的电压控制电路，用于在一个操作模式下控制第一电压电位的驱动信号的电压，并且在另一操作模式下控制电压电位大于第一电压电位; 以及模式控制器，用于基于驱动信号的特性来控制电压控制电路的工作模式。

公开(公告)号：US6028406A

公开(公告)日：2000-02-22

申请号：US214450

申请日：1998-12-29

Applicant: Jens Birk

Inventor： Jens Birk

IPC: H02P6/14 ,  H02P29/40 ,  H02K23/00

CPC classification number: H02P6/14 ,  H02P29/40 ,  H02P2201/07

Abstract: Method for commutation of a brushless motor being supplied with electrical energy from a DC intermediary circuit via a multi-phase inverter, by which a first current and a second current value are determined and the length of a commutation interval is set in dependence of these current values. With motors being exposed to heavily varying load torques during one rotation, e.g. motors driving a compressor, a stable operation must be reached. For this purpose a correction value is added to the pre-set commutation interval determined by the speed of the motor, said correction value being the result of the difference of the actual value of the intermediary circuit current and a filtered and delayed value of the intermediary circuit current, multiplied by a weighting factor.

Abstract translation: PCT No.PCT / DK97 / 00309 Sec。 371 1998年12月29日第 102（e）1998年12月29日PCT PCT 1997年7月14日PCT公布。 公开号WO98 / 02959 日本1998年1月22日通过多相逆变器从直流中介电路供给电能的无刷电动机的换向的方法，通过该电力确定第一电流值和第二电流值，并设定换向间隔的长度 根据这些当前值。 由于电动机在一个旋转期间暴露于大大变化的负载转矩，例如 驱动压缩机的电机，必须达到稳定的运行。 为此，将校正值添加到由电动机的速度确定的预设换向间隔中，所述校正值是中间电路电流的实际值与中间电路的滤波和延迟值之差的结果 电路电流乘以加权因子。

公开(公告)号：US5743347A

公开(公告)日：1998-04-28

申请号：US545863

申请日：1995-11-13

Applicant: Newton Roy Gingerich

Inventor： Newton Roy Gingerich

IPC: B60L8/00 ,  B60L11/18 ,  B60L15/20 ,  B60K1/02

CPC classification number: B60L11/1805 ,  B60L15/2036 ,  B60L8/00 ,  H02P2201/07 ,  Y02T10/645 ,  Y02T10/646 ,  Y02T10/648 ,  Y02T10/7005 ,  Y02T10/7083 ,  Y02T10/7275

Abstract: The lawn end garden tractor has independent electric motors for both driven wheels. The motors are combined with reduction gearboxes, and the wheel is mounted on the output shaft of the gearbox. There is no mechanical axle connection. The power to the motors is controlled by an automatic controller as to wheel speed, power being increased/decreased in accordance with whether the wheels are under-running or overrunning relative to manually-controlled speed setting. Steering is controlled by potentiometer on a mechanical steering wheel or by joystick control. The joystick may be on the tractor, or remote. The drive system is suitable also for four-wheel drive.

Abstract translation: PCT No.PCT / CA94 / 00232 Sec。 371日期：1995年11月13日 102（e）日期1995年11月13日PCT 1994年5月13日PCT公布。 WO94 / 26551 PCT出版物 日期1994年11月24日草坪花园拖拉机有两个驱动轮独立的电动马达。 电机与减速齿轮箱组合，车轮安装在变速箱的输出轴上。 没有机械轴连接。 电动机的功率由自动控制器控制，关于车轮速度，根据车轮是否相对于手动控制的速度设置运行不足或超速而增加/减少功率。 转向由机械方向盘上的电位器或操纵杆控制控制。 操纵杆可能位于拖拉机或遥控器上。 驱动系统也适用于四轮驱动。

公开(公告)号：EP3324536A1

公开(公告)日：2018-05-23

申请号：EP17199088.0

申请日：2017-10-30

Applicant: Delta Electronics, Inc.

Inventor： TSENG, Wei-Shuo ,  CHUANG, Chao-Chin ,  YU, Yao-Yang ,  HSIAO, Li-Wei

IPC: H02P27/06 ,  H02M7/217 ,  H02P6/28

CPC classification number: H02P29/10 ,  H02M1/32 ,  H02M1/4225 ,  H02M2001/0022 ,  H02M2001/325 ,  H02M2001/4291 ,  H02P6/085 ,  H02P6/14 ,  H02P6/28 ,  H02P23/26 ,  H02P27/06 ,  H02P2201/07 ,  Y02B70/126 ,  Y02P80/112

Abstract: An electronically commutated fan system (100) includes a conversion module (10), an inverter unit (20), and a control unit (30). The conversion module (10) receives an input power source (Vin) and converts the input power source (Vin) into a first DC power source (Vdcl). The inverter unit (20) receives the first DC power source (Vdcl) and converts the first DC power source (Vdcl) into an output power source (Vout) to make a fan (40) rotate. The control unit (30) controls a rotational speed of the fan (40) to be within a first error range (Rel) when the control unit (30) determines that an amplitude of the input power source (Vin) is varied. The control unit (30) determines that the input power source (Vin) is a DC power source or an AC power source. The conversion module (10) is controlled by the control unit (30) to convert the DC power source or the AC power source into the first DC power source (Vdcl).