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    • 23. 发明授权
    • Method and apparatus for controlling power factor correction
    • 用于控制功率因数校正的方法和装置
    • US07266001B1
    • 2007-09-04
    • US10804660
    • 2004-03-19
    • Hubertus NotohamiprodjoJianqing Lin
    • Hubertus NotohamiprodjoJianqing Lin
    • H02M7/00
    • H02M1/42Y02B70/12
    • In a method and apparatus for controlling power factor correction in mixed operation modes, a frequency of the input voltage is obtained by detecting the zero crossing points of the input voltage. A peak of the input voltage is obtained by detecting input voltage with 90 degree phase. Thus, the present invention predicts the input voltage by its frequency and peak and the characteristic of the sine wave. A digital signal processor computes the duty and frequency of a boost switch, switching the operation mode of the boost converter among continuous mode, critical mode and discontinuous mode according to input voltage or the load. According to another aspect, the operation is switched to critical mode from the average current mode when a zero current is detected before the charging and recharging cycle of the boost switch is finished.
    • 在混合动作模式中的功率因数校正控制方法和装置中,通过检测输入电压的过零点来获得输入电压的频率。 通过检测90度相位的输入电压可以获得输入电压的峰值。 因此,本发明通过其频率和峰值以及正弦波的特性来预测输入电压。 数字信号处理器计算升压开关的占空比和频率,根据输入电压或负载将升压转换器的工作模式切换到连续模式,临界模式和不连续模式。 根据另一方面,当在升压开关的充电和再充电循环完成之前检测到零电流时,操作从平均电流模式切换到临界模式。
    • 25. 发明授权
    • Identifying a current drawn by a load
    • 识别由负载绘制的电流
    • US08489349B2
    • 2013-07-16
    • US13355452
    • 2012-01-20
    • Hubertus NotohamiprodjoRadu Pitigoi-Aron
    • Hubertus NotohamiprodjoRadu Pitigoi-Aron
    • G01R19/25
    • G01R19/25H05B41/2828H05B41/3927
    • A method includes, in at least one aspect, receiving a digital voltage signal representing a voltage supplied to a circuit having a load, identifying a first time stamp associated with a voltage value representing an extrema in the digital voltage signal, receiving a digital current signal representing a current drawn by the load in response to the supplied voltage, identifying a second time stamp associated with the digital current signal, the second time stamp being within a threshold time of the first time stamp, and identifying a current value associated with the second time stamp as the current drawn by the load.
    • 一种方法在至少一个方面包括:接收表示提供给具有负载的电路的电压的数字电压信号,识别与表示数字电压信号中的极值的电压值相关联的第一时间戳,接收数字电流信号 代表由所述负载响应于所提供的电压而绘制的电流,识别与所述数字电流信号相关联的第二时间戳,所述第二时间戳位于所述第一时间戳的阈值时间内,以及识别与所述第二时间戳相关联的当前值 时间戳作为负载绘制的电流。
    • 28. 发明申请
    • Control of Delivery of Current Through One or More Discharge Lamps
    • 通过一个或多个放电灯传递电流的控制
    • US20120123713A1
    • 2012-05-17
    • US13355452
    • 2012-01-20
    • Hubertus NotohamiprodjoRadu Pitigoi-Aron
    • Hubertus NotohamiprodjoRadu Pitigoi-Aron
    • G06F19/00G01R19/04G01R19/25
    • G01R19/25H05B41/2828H05B41/3927
    • Method to identify a current drawn by a fluorescent lamp in a circuit. Methods include receiving a voltage supplied to a fluorescent lamp drawing a current in response to the voltage, digitally sampling the voltage at a sampling frequency and associating a first time stamp with a voltage value representing one of a maximum or minimum value in observed voltage, receiving the current after receiving the voltage, digitally sampling the current at the sampling frequency and associating multiple second time stamps with a corresponding multiple current values, identifying a second time stamp, a difference between the first time stamp and the second time stamp being within a threshold, and identifying a current value associated with the second time stamp as the current drawn by the fluorescent lamp.
    • 识别由电路中的荧光灯吸取的电流的方法。 方法包括接收提供给荧光灯的电压,其响应于电压抽取电流,以采样频率对电压进行数字采样,并将第一时间戳与表示观察电压中的最大值或最小值之一的电压值相关联,接收 所述电流在接收到所述电压之后,以采样频率对所述电流进行数字采样,并将多个第二时间戳与相应的多个电流值相关联,识别第二时间戳,所述第一时间戳与所述第二时间戳之间的差在阈值内 并且将与第二时间戳相关联的当前值识别为由荧光灯绘制的电流。
    • 30. 再颁专利
    • Circuits, systems, methods, and software for power factor correction and/or control
    • 用于功率因数校正和/或控制的电路,系统,方法和软件
    • USRE42946E1
    • 2011-11-22
    • US12813467
    • 2010-06-10
    • Xiaopeng ChenJianqing LinHubertus Notohamiprodjo
    • Xiaopeng ChenJianqing LinHubertus Notohamiprodjo
    • G05F1/613G05F1/70
    • G05F1/70H02M1/4225Y02B70/126
    • Circuits, systems, methods and software for controlling a power conversion and/or correcting and/or controlling a power factor in such conversion(s). The present invention generally takes a computational approach to reducing or minimizing zero current periods in the critical mode of power converter operation, and advantageously reduces zero current periods in the critical mode of power converter operation, thereby maximizing the power factor of the power converter in the critical mode and reducing noise that may be injected back into AC power lines. The present power factor controller allows for greater design flexibility, reduced design complexity, and reduced resolution and greater tolerance for error in certain parameter measurements useful in power factor correction and/or control.
    • 用于控制功率转换和/或校正和/或控制这种转换中的功率因数的电路,系统,方法和软件。 本发明通常采用计算方法来减少或最小化功率转换器运行的临界模式中的零电流周期,并且有利地在功率转换器运行的临界模式中减少零电流周期,由此使功率转换器的功率因数最大化 临界模式和减少可能注入到交流电源线中的噪声。 本功率因数控制器允许更大的设计灵活性,降低的设计复杂性和降低的分辨率以及在功率因数校正和/或控制中有用的某些参数测量中对误差的更大误差。