中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

23 records (took 0.027 seconds)

    HIGH-SPEED OPTOCOUPLER CIRCUITS
    1.
    发明申请
    HIGH-SPEED OPTOCOUPLER CIRCUITS 审中-公开

    公开(公告)号：WO2021108741A1

    公开(公告)日：2021-06-03

    申请号：PCT/US2020/062461

    申请日：2020-11-26

    Applicant: EMERSON CLIMATE TECHNOLOGIES, INC.

    Inventor： GREEN, Charles E.

    IPC: H03K17/78 ,  H03K17/16

    Abstract: An optocoupler circuit includes first and second resistors, an optocoupler, a reference circuit, and a comparator. The optocoupler includes a light source and a phototransistor. The light source is connected to form a first voltage divider with the first resistor. The phototransistor is connected to form a second voltage divider with the second resistor. The optocoupler transitions an output of the second voltage divider between first and second levels. Magnitudes of the first and second levels are greater than zero. The reference circuit is configured to output a reference voltage. The comparator includes a first input and a second input. The first input receives an output of the first voltage divider. The second input receives the reference voltage. An output of the comparator transitions between a third level and a fourth level based on a comparison between the output of the first voltage divider and the reference voltage.

    MULTI-PHASE CONVERTER CONTROL SYSTEM AND METHOD FOR INTERLEAVING MULTI-PHASE CONVERTERS
    2.
    发明申请
    MULTI-PHASE CONVERTER CONTROL SYSTEM AND METHOD FOR INTERLEAVING MULTI-PHASE CONVERTERS 审中-公开

    公开(公告)号：WO2021021684A1

    公开(公告)日：2021-02-04

    申请号：PCT/US2020/043634

    申请日：2020-07-25

    Applicant: EMERSON CLIMATE TECHNOLOGIES, INC.

    Inventor： GREEN, Charles E. ,  RANCURET, Paul

    IPC: H02M1/42 ,  H02M3/158

    Abstract: A desired OFF period module is configured to determine a desired OFF period for a plurality of switches of a PFC circuit based on an input voltage and an output voltage. A blanking timer module is configured to output a blanking signal, set the blanking signal to a first state when a countdown timer is greater than zero, and set the blanking signal to a second state when the countdown timer reaches zero. A switching control module is configured to: transition a first switch of the plurality of switches from an ON state to an OFF state in response to (i) a measured current through an inductor of the PFC circuit being greater than a demanded current through the inductor and (ii) the blanking signal being in the second state; and maintain the first switch in the OFF state for the desired OFF period after the transition.

    CONTROLLER AND METHOD FOR MINIMIZING PHASE ADVANCE CURRENT
    4.
    发明申请
    CONTROLLER AND METHOD FOR MINIMIZING PHASE ADVANCE CURRENT 审中-公开
    用于最小化相位前进电流的控制器和方法

    公开(公告)号：WO2011019733A2

    公开(公告)日：2011-02-17

    申请号：PCT/US2010/045046

    申请日：2010-08-10

    Applicant: EMERSON CLIMATE TECHNOLOGIES, INC. ,  GREEN, Charles E.

    Inventor： GREEN, Charles E.

    IPC: H02P27/06 ,  H02M7/48

    CPC classification number: H02P21/06 ,  F25B49/025 ,  H02P21/0089 ,  H02P2201/15

    Abstract: A current control module generates a voltage request based on a d-axis current (Idr) demand. A switching control module controls a motor based on the voltage request and generates an out-of-volts (OOV) signal based on a comparison of the voltage request and an available voltage. An Idr injection module generates the Idr demand based on a direct current (DC) bus voltage, a rotational speed, and a demanded torque and selectively applies a first adjustment to the Idr demand. The Idr injection module identifies whether an improvement resulted from the first adjustment, wherein the improvement is identified based on at least one of (i) a measured current of the motor and (ii) the OOV signal. The Idr injection module selectively applies a second adjustment to the Idr demand based on whether the improvement is identified.

    Abstract translation: 电流控制模块基于d轴电流（Idr）需求产生电压请求。 开关控制模块基于电压请求来控制电动机，并且基于电压请求和可用电压的比较产生失伏（OOV）信号。 Idr注入模块基于直流（DC）总线电压，转速和所需转矩产生Idr需求，并且选择性地对Idr需求进行第一调整。 Idr注入模块识别是否由第一调整产生改进，其中基于（i）电动机的测量电流和（ii）OOV信号中的至少一个来识别改进。 Idr注入模块基于是否识别出改进来选择性地对Idr需求进行第二调整。

    CONTROLLER AND METHOD FOR TRANSITIONING BETWEEN CONTROL ANGLES
    5.
    发明申请
    CONTROLLER AND METHOD FOR TRANSITIONING BETWEEN CONTROL ANGLES 审中-公开
    控制器和用于在控制角度之间转换的方法

    公开(公告)号：WO2011019730A2

    公开(公告)日：2011-02-17

    申请号：PCT/US2010/045041

    申请日：2010-08-10

    Applicant: EMERSON CLIMATE TECHNOLOGIES, INC. ,  GREEN, Charles E. ,  MARCINKIEWICZ, Joseph G.

    Inventor： GREEN, Charles E. ,  MARCINKIEWICZ, Joseph G.

    IPC: H02P27/04 ,  H02M7/48

    CPC classification number: H02P6/06 ,  H02M1/4225 ,  H02M3/1584 ,  H02P6/20 ,  H02P6/34 ,  Y02B70/126

    Abstract: A system includes a pulse-width modulation (PWM) module, a subtraction module, an error reducing module, and a summing module. The PWM module controls switching of an inverter that powers a motor. The PWM module controls the switching based on a first angle in a first mode and a second angle in a second mode. The subtraction module determines a difference between the first and second angles. The error reducing module (i) stores the difference when a transition from the first mode to the second mode is commanded and (ii) decreases a magnitude of the stored difference to zero. The summing module calculates a sum of the stored difference and the second angle. The PWM module controls the switching based on the sum in the second mode.

    Abstract translation: 系统包括脉宽调制（PWM）模块，减法模块，误差减小模块和求和模块。 PWM模块控制为电机供电的逆变器的开关。 PWM模块基于第一模式中的第一角度和第二模式中的第二角度来控制切换。 减法模块确定第一和第二角度之间的差异。 误差减小模块（i）存储当命令从第一模式到第二模式的转换时的差异，并且（ii）将存储的差异的大小减小到零。 求和模块计算所存储的差值与第二角度之和。 PWM模块根据第二种模式的和来控制开关。

    SYSTEM AND METHOD FOR POWER FACTOR CORRECTION FREQUENCY TRACKING AND REFERENCE GENERATION
    6.
    发明申请
    SYSTEM AND METHOD FOR POWER FACTOR CORRECTION FREQUENCY TRACKING AND REFERENCE GENERATION 审中-公开

    公开(公告)号：WO2011019707A3

    公开(公告)日：2011-02-17

    申请号：PCT/US2010/045005

    申请日：2010-08-10

    Applicant: EMERSON CLIMATE TECHNOLOGIES, INC. ,  GREEN, Charles E.

    Inventor： GREEN, Charles E.

    IPC: H02M1/42 ,  H02M3/155

    Abstract: A power factor correction (PFC) system includes a period determination module, a frequency generation module, an angle generation module, a signal generation module, and an angle correction module. The period determination module determines a period of an input alternating current (AC) line signal based on a time between rising edges of the input AC line signal. The frequency generation module generates a frequency based on the period. The angle generation module generates an angle based on the frequency. The signal generation module generates a sinusoidal reference signal based on the frequency and an adjusted angle. The angle correction module generates the adjusted angle based on the angle and based on a comparison of a falling edge of the sinusoidal reference signal, the period, and a rising edge of the input AC line signal.

    MOTOR DRIVE CONTROL USING PULSE-WIDTH MODULATION PULSE SKIPPING
    8.
    发明申请
    MOTOR DRIVE CONTROL USING PULSE-WIDTH MODULATION PULSE SKIPPING 审中-公开
    使用脉冲宽度调制脉冲跳闸的电机驱动控制

    公开(公告)号：WO2014026124A1

    公开(公告)日：2014-02-13

    申请号：PCT/US2013/054359

    申请日：2013-08-09

    Applicant: EMERSON CLIMATE TECHNOLOGIES, INC.

    Inventor： GREEN, Charles E. ,  MARCINKIEWICZ, Joseph G.

    IPC: H02P27/08 ,  H02P27/06

    CPC classification number: H02P27/08 ,  H02P23/14 ,  H02P23/26 ,  H02P23/30 ,  H02P27/04 ,  H02P27/085 ,  H02P2201/15 ,  H02P2205/05 ,  H02P2205/07

    Abstract: A control system for a motor includes a pulse-width modulation module, a pulse skip determination module, and a duty cycle adjustment module. The pulse-width modulation module generates three duty cycle values based on three voltage requests, respectively. A plurality of solid-state switches control three phases of the motor in response to the three duty cycle values, respectively. The pulse skip determination module generates a pulse skip signal. The duty cycle adjustment module selectively prevents the plurality of solid-state switches from switching during intervals specified by the pulse skip signal.

    Abstract translation: 电动机的控制系统包括脉冲宽度调制模块，脉冲跳跃确定模块和占空比调节模块。 脉冲宽度调制模块分别基于三个电压请求产生三个占空比值。 多个固态开关分别响应于三个占空比值控制电动机的三相。 脉冲跳过确定模块产生脉冲跳越信号。 占空比调整模块选择性地防止多个固态开关在由脉冲跳跃信号指定的间隔期间切换。

    SYSTEM AND METHOD FOR CURRENT BALANCING
    9.
    发明申请
    SYSTEM AND METHOD FOR CURRENT BALANCING 审中-公开
    用于平衡的系统和方法

    公开(公告)号：WO2011019705A2

    公开(公告)日：2011-02-17

    申请号：PCT/US2010/044998

    申请日：2010-08-10

    Applicant: EMERSON CLIMATE TECHNOLOGIES, INC. ,  GREEN, Charles E.

    Inventor： GREEN, Charles E.

    IPC: H02M1/42 ,  H02M3/155

    CPC classification number: H02M1/4208 ,  H02M1/4225 ,  H02M3/1584 ,  Y02B70/126

    Abstract: A power factor correction (PFC) system includes a comparison module, an adjustment module, a compensation module, and a duty cycle control module. The comparison module measures N currents having different phases, and generates (N-1) comparisons based on the N measured currents, wherein N is an integer greater than one. The adjustment module determines (N-1) time advance adjustments based on the (N-1) comparisons, respectively. The compensation module generates N compensated versions of an input alternating current (AC) line signal based on the input AC line signal, a sinusoidal reference signal, and the (N-1) time advance adjustments, wherein the sinusoidal reference signal is synchronized to the input AC line signal in phase and frequency. The duty cycle control module controls PFC switching based on the N compensated versions of the input AC line signal.

    Abstract translation: 功率因数校正（PFC）系统包括比较模块，调整模块，补偿模块和占空比控制模块。 比较模块测量具有不同相位的N个电流，并且基于N个测量电流产生（N-1）比较，其中N是大于1的整数。 调整模块分别基于（N-1）比较来确定（N-1）时间提前调整。 补偿模块基于输入AC线信号，正弦参考信号和（N-1）时间提前调整产生输入交流（AC）线信号的N个补偿版本，其中正弦参考信号与 输入交流线路信号的相位和频率。 占空比控制模块根据输入交流线路信号的N个补偿版本控制PFC开关。

    FILTERING SYSTEMS AND METHODS FOR VOLTAGE CONTROL
    10.
    发明公开
    FILTERING SYSTEMS AND METHODS FOR VOLTAGE CONTROL 审中-公开

    公开(公告)号：EP4138294A1

    公开(公告)日：2023-02-22

    申请号：EP22199802.4

    申请日：2017-04-14

    Applicant: Emerson Climate Technologies, Inc.

    Inventor： GREEN, Charles E.

    IPC: H02M1/42 ,  H02P23/26 ,  H02M1/00 ,  G01R19/175 ,  H03K5/1536

    Abstract: A power factor correction (PFC) system comprising a PFC circuit that receives an alternating current (AC) input voltage and that, using a switch, generates a direct current (DC) output voltage from the AC input voltage; a first zero crossing module that determines a first zero crossing of the AC input voltage based on: a first voltage and a first time when the AC input voltage transitioned from less than a first predetermined voltage to greater than the first predetermined voltage; and a second voltage and a second time when the AC input voltage transitioned from less than a second predetermined voltage to greater than the second predetermined voltage, wherein the first predetermined voltage is less than zero, and wherein the second predetermined voltage is greater than zero; a reference module that, based on the first zero crossing, generates a sinusoidal reference signal that corresponds to the AC input voltage at least in phase and frequency; and a switching control module that controls switching of the switch based on the sinusoidal reference signal.

Patent Agency Ranking