公开(公告)号：US06377037B1

公开(公告)日：2002-04-23

申请号：US08904706

申请日：1997-08-01

Applicant: Gordon R. Burns ,  Javier Adame ,  John T. Voisine ,  John P. Junker ,  Jeff Kotowski ,  Richard D. Davis

Inventor： Gordon R. Burns ,  Javier Adame ,  John T. Voisine ,  John P. Junker ,  Jeff Kotowski ,  Richard D. Davis

IPC: G01R2106

CPC classification number: G01R21/133

Abstract: A watt-hour meter employs a power factor compensation technique that inserts a delay into the digitized current or voltage sample stream. An exemplary embodiment of the present invention includes an electronic watt-hour meter comprising a voltage sensor, a current sensor, a conversion circuit, and a processing circuit: The voltage sensor generates a voltage measurement signal responsive to a voltage provided to a load. Similarly, the current sensor generates a current measurement signal responsive to a current provided to a load. The conversion circuit further comprises: a first converter connected to the voltage sensor for generating sampled voltage data stream based on said voltage measurement signal; a second converter connected to the current sensor for generating a sampled current data stream based on said current measurement signal, and a phase correction circuit. The phase correction circuit is connected to one of the first and second converters and inserts a delay into one of the sampled voltage data stream or the sampled current data stream. The processing circuit is operably connected to the first and second converters, and receives information indicative of the sampled voltage data stream and sampled current data stream subject to any delay inserted by the phase correction circuit. The processing circuit then generates power consumption data from the sampled voltage data and sampled current data.

Abstract translation: 电度表采用功率因数补偿技术，将延迟插入数字化电流或电压采样流。 本发明的一个示例性实施例包括一个包括电压传感器，电流传感器，转换电路和处理电路的电子电度表。电压传感器根据提供给负载的电压产生电压测量信号。 类似地，电流传感器响应于提供给负载的电流产生电流测量信号。 转换电路还包括：连接到电压传感器的第一转换器，用于基于所述电压测量信号产生采样的电压数据流; 连接到电流传感器的第二转换器，用于基于所述电流测量信号产生采样的当前数据流，以及相位校正电路。 相位校正电路连接到第一和第二转换器之一，并将延迟插入采样的电压数据流或采样的当前数据流之一。 处理电路可操作地连接到第一和第二转换器，并且接收指示采样的电压数据流的信息和经相位校正电路插入的任何延迟的采样的当前数据流。 处理电路然后从采样的电压数据和采样的当前数据产生功耗数据。

公开(公告)号：US5434800A

公开(公告)日：1995-07-18

申请号：US287065

申请日：1994-08-08

Applicant: Richard D. Davis ,  Jeff Kotowski

Inventor： Richard D. Davis ,  Jeff Kotowski

IPC: F02D13/02 ,  F02D45/00 ,  F02P5/15 ,  F02P7/067 ,  F02P7/077 ,  G01D5/244 ,  G01D5/249 ,  G01P3/489 ,  H03M1/28 ,  G01B7/14

CPC classification number: H03M1/28 ,  F02P7/0675 ,  F02P7/0775 ,  G01D5/24409 ,  G01D5/249 ,  G01P3/489 ,  F02D2041/0092

Abstract: A programmable system synchronizes the operation of an electronic angular position indicator with the angular displacement of a rotor. The system can synchronize operation with rotors with non-uniform mark spacing. A sensor provides the system with electronic pulse patterns corresponding to marks on the rotor. Pulse patterns are compared to patterns stored in memory to determine the instantaneous angular position of the rotor. The synchronization system provides the angular position indicator with parameters appropriate to the angular position of the rotor. The system obtains synchronization during initial rotations of the rotor and continually checks synchronization during subsequent rotation.

Abstract translation: 可编程系统使电子角位置指示器的操作与转子的角位移同步。 系统可以与转子同步操作，具有不均匀的标记间距。 传感器为系统提供与转子上的标记对应的电子脉冲图案。 将脉冲模式与存储在存储器中的模式进行比较，以确定转子的瞬时角位置。 同步系统为角位置指示器提供适合转子角位置的参数。 系统在转子的初始转动期间获得同步，并在随后的旋转期间持续检查同步。

公开(公告)号：US5317614A

公开(公告)日：1994-05-31

申请号：US935823

申请日：1992-08-26

Applicant: Richard D. Davis ,  Jeff Kotowski

Inventor： Richard D. Davis ,  Jeff Kotowski

IPC: G01D5/244 ,  G01D5/249 ,  G07C3/02

CPC classification number: G01D5/24404 ,  G01D5/2492

Abstract: A programmable, electronic, angular position indicator, based upon engineering units, estimates the angular displacement of a rotating rotor. The angular position indicator is programmed with the particular arrangement of teeth (or other markings) on the rotor. Intermediate angular displacements are interpolated between a limited number of positive angular displacement indications. Offsets, due to acceleration or deceleration of the rotor, are corrected at each positive angular displacement indication without skipping the output of each interpolated angular displacement. Angular displacement is determined in standard engineering units.

Abstract translation: 基于工程单位的可编程电子角位置指示器估计旋转转子的角位移。 角位置指示器通过转子上的齿（或其他标记）的特定排列来编程。 在有限数量的正角位移指示之间插入中间角位移。 由于转子的加速或减速而导致的偏移量在每个正角度位移指示下被校正，而不跳过每个内插的角位移的输出。 角位移以标准工程单位确定。

公开(公告)号：US5561660A

公开(公告)日：1996-10-01

申请号：US416614

申请日：1995-04-05

Applicant: Jeff Kotowski ,  Richard D. Davis

Inventor： Jeff Kotowski ,  Richard D. Davis

IPC: H03F1/30 ,  H03M3/02 ,  H03L7/00

CPC classification number: H03F1/303 ,  H03M3/324 ,  H03M3/34 ,  H03F2200/331 ,  H03M3/356 ,  H03M3/37 ,  H03M3/458

Abstract: The present invention discloses method and apparatus for offset and phase correction in multiplexed delta-sigma modulators. According to the invention, offsets and phases of input signals to multiplexed delta-sigma modulators are corrected by a simple and low cost method. The invention utilizes a novel switching technique during different sampling periods to eliminate the effect of DC offsets present in multiplexed input signals. The invention also uses a delay introduced by a FIFO or a shift register to individually correct for phase shifts present in individual multiplexed input signals. The invention accomplishes these objectives without introducing a significant quantization noise, and without requiring overlapping FIR filters.

Abstract translation: 本发明公开了用于多路复用Δ-Σ调制器中的偏移和相位校正的方法和装置。 根据本发明，通过简单且低成本的方法校正输入信号到多路复用Δ-Σ调制器的偏移和相位。 本发明在不同的采样周期中利用了一种新颖的开关技术来消除多路输入信号中存在的直流偏移的影响。 本发明还使用由FIFO或移位寄存器引入的延迟来单独校正存在于各个复用输入信号中的相移。 本发明实现了这些目标，而不引入显着的量化噪声，并且不需要重叠的FIR滤波器。

公开(公告)号：US08502474B2

公开(公告)日：2013-08-06

申请号：US13249158

申请日：2011-09-29

Applicant: Jeff Kotowski ,  Charles Cai ,  Ranajit Ghoman

Inventor： Jeff Kotowski ,  Charles Cai ,  Ranajit Ghoman

IPC: G05F1/00

CPC classification number: H05B33/0815 ,  H02M1/4225 ,  Y02B20/346 ,  Y02B70/126

Abstract: A primary side PFC driver circuit is disclosed that includes a switch control circuit for commanding a switch to allow an inductor coupled to an output load (e.g., LEDs) to transfer energy provided by an input voltage source. The switch control circuit provides two signals for commanding the switch. A first signal having a first frequency, with a duty cycle in proportion to the input voltage amplitude, commands the switch to allow the average input current to be proportional to the input voltage amplitude. A second signal having a second frequency higher than the first frequency pulses the output load with substantially constant current pulses based on a value of the first signal (e.g., while the first signal is high). The current pulses produce a substantially constant current in the output load.

Abstract translation: 公开了一种初级侧PFC驱动器电路，其包括用于命令开关允许耦合到输出负载（例如，LED）的电感器传递由输入电压源提供的能量的开关控制电路。 开关控制电路提供两个指示开关的信号。 具有与输入电压幅度成比例的占空比的具有第一频率的第一信号命令开关允许平均输入电流与输入电压幅度成正比。 具有高于第一频率的第二频率的第二信号基于第一信号的值（例如，当第一信号为高时）以基本上恒定的电流脉冲来脉冲输出负载。 电流脉冲在输出负载中产生基本恒定的电流。

公开(公告)号：US20130099697A1

公开(公告)日：2013-04-25

申请号：US13281366

申请日：2011-10-25

Applicant: Sean S. Chen ,  Jeff Kotowski ,  Timothy James Herklots

Inventor： Sean S. Chen ,  Jeff Kotowski ,  Timothy James Herklots

IPC: H05B37/02

CPC classification number: G09G3/342 ,  G09G2320/0233 ,  G09G2320/064

Abstract: The disclosed multi-channel driver equalizer circuit matches currents in multiple strings of illumination devices at low current levels by using an analog equalizer to sequentially couple the output of a reference amplifier in series with each current source amplifier in a current limit loop of the driver equalizer circuit to correct the offsets of the current source amplifiers, resulting in the matching of string currents on average.

Abstract translation: 所公开的多通道驱动均衡器电路通过使用模拟均衡器在多个照明装置串中的电流匹配电流，所述模拟均衡器在驱动器均衡器的限流回路中将参考放大器的输出与每个电流源放大器串联耦合 电路来校正电流源放大器的偏移，导致串电流的匹配平均。

公开(公告)号：US07109804B2

公开(公告)日：2006-09-19

申请号：US10834326

申请日：2004-04-27

Applicant: Urs H. Mader ,  Yvonne Ko ,  Franco Cocetta ,  Jeff Kotowski ,  Xiaoying Yu

Inventor： Urs H. Mader ,  Yvonne Ko ,  Franco Cocetta ,  Jeff Kotowski ,  Xiaoying Yu

IPC: H03L7/00 ,  H03B5/10

CPC classification number: H03K4/502

Abstract: A relaxation oscillator for generating an oscillator output signal having a predetermined frequency. The relaxation oscillator includes an interleaved charge pump for providing a restoring charge to an integrator in response to at least one charge pump control signal. The relaxation oscillator further includes an integrator having an integrator input connected to the current summing node. The integrator is adapted to produce an integrator output signal having the predetermined frequency at an integrator output. A comparator having an input connected to the integrator output is adapted to generate the oscillator output signal having the predetermined frequency in response to the integrator output signal.

Abstract translation: 一种放大振荡器，用于产生具有预定频率的振荡器输出信号。 弛豫振荡器包括交错电荷泵，用于响应于至少一个电荷泵控制信号向积分器提供恢复电荷。 弛豫振荡器还包括具有连接到当前求和节点的积分器输入的积分器。 积分器适于在积分器输出处产生具有预定频率的积分器输出信号。 具有连接到积分器输出的输入的比较器适于响应于积分器输出信号产生具有预定频率的振荡器输出信号。

公开(公告)号：US08912770B2

公开(公告)日：2014-12-16

申请号：US13289603

申请日：2011-11-04

Applicant: Charles Cai ,  Jeff Kotowski ,  Kien Vi

Inventor： Charles Cai ,  Jeff Kotowski ,  Kien Vi

IPC: G05F1/563 ,  H02M3/158 ,  H05B37/02 ,  H02M3/156

CPC classification number: H02M3/158 ,  H02M3/156 ,  H05B33/0812 ,  H05B33/0815 ,  H05B33/0842 ,  H05B37/02 ,  Y02B20/343 ,  Y02B20/42 ,  Y10S323/901

Abstract: A power conversion circuit of two feedback loops is disclosed that includes a feedback control circuit for ramping up or down a commanded voltage to a load (e.g., LEDs). The second feedback loop feeds into the first feedback loop, and the second feedback loop operates at a slower bandwidth than the first feedback loop. When ramping up or down the commanded voltage, a voltage overshoot results because of delay in the system. The overshoot can be compensated for by a final adjustment to the commanded voltage.

Abstract translation: 公开了两个反馈回路的功率转换电路，其包括用于将指令电压上升或下降到负载（例如，LED）的反馈控制电路。 第二反馈环馈入第一反馈环路，第二反馈环路以比第一反馈环路更慢的带宽工作。 当升高或降低指令电压时，由于系统的延迟而导致电压过冲。 可以通过对指令电压进行最终调整来补偿过冲。

公开(公告)号：US20130134889A1

公开(公告)日：2013-05-30

申请号：US13308190

申请日：2011-11-30

Applicant: Sean S. Chen ,  Jeff Kotowski ,  Timothy James Herklots

Inventor： Sean S. Chen ,  Jeff Kotowski ,  Timothy James Herklots

IPC: H05B37/00

CPC classification number: H05B33/0815

Abstract: In one novel aspect, driving a string of light emitting elements, such as LEDs, includes applying a drive signal to circuitry that regulates a voltage appearing at a source of a transistor whose drain is coupled to one end of the string of light emitting elements and whose source is coupled to ground through a resistive element. Sequencing of the drive signal and a voltage supply signal for the light emitting elements is controlled such that the voltage supply signal is not increased above a predetermined allowable voltage for the transistor until the transistor is turned on, and such that the supply voltage is not decreased below the allowable voltage for the transistor until the transistor is turned off.

Abstract translation: 在一个新颖的方面，驱动一串发光元件（例如LED）包括将驱动信号施加到电路，该电路调节出现在其漏极耦合到发光元件串的一端的晶体管的源极处的电压，以及 其源极通过电阻元件耦合到地。 控制驱动信号的排序和发光元件的电压供给信号，使得电压供给信号在晶体管导通之前没有增加到晶体管的预定容许电压以上，并且电源电压不降低 低于晶体管的允许电压，直到晶体管关断。

公开(公告)号：US08049551B2

公开(公告)日：2011-11-01

申请号：US12140410

申请日：2008-06-17

Applicant: Jeff Kotowski ,  Shane Hollmer

Inventor： Jeff Kotowski ,  Shane Hollmer

IPC: G05F1/10

CPC classification number: H03K17/165

Abstract: A ramp-up circuit for switched capacitor circuits with negative feedback to control the slew rate of in-rush current. Other embodiments are described and claimed.

Abstract translation: 用于负反馈的开关电容电路的斜坡上升电路，用于控制浪涌电流的转换速率。 描述和要求保护其他实施例。