公开(公告)号：US06510066B2

公开(公告)日：2003-01-21

申请号：US09822401

申请日：2001-03-30

申请人： Demetri Giannopoulos ,  Qiong Li ,  Nai-Chi Lee

发明人： Demetri Giannopoulos ,  Qiong Li ,  Nai-Chi Lee

IPC分类号： H02M324

CPC分类号： H02M3/33523 ,  H02M2001/0012 ,  H02M2001/0032 ,  H02M2001/009 ,  Y02B70/16

摘要： A switch mode power supply (SMPS) and method are provided. In particular, the present invention provides an SMPS in which data is encoded by manipulating voltage pulses on a primary side. The manipulated voltage pulses are then transferred over a transformer to a secondary side. Secondary side pulses generated in response to the primary side pulses are sensed and decoded by a detector. The present invention allows data to be transferred from the primary side to the secondary side without affecting output voltages.

摘要翻译： 提供开关电源（SMPS）和方法。 特别地，本发明提供一种SMPS，其中通过操纵初级侧的电压脉冲对数据进行编码。 然后将受控电压脉冲通过变压器传送到次级侧。 响应于初级侧脉冲而产生的次级侧脉冲由检测器检测和解码。 本发明允许数据从初级侧传送到次级侧而不影响输出电压。

公开(公告)号：US06421256B1

公开(公告)日：2002-07-16

申请号：US09888457

申请日：2001-06-25

申请人： Demetri Giannopoulos ,  Qiong Li

发明人： Demetri Giannopoulos ,  Qiong Li

IPC分类号： H02M3335

CPC分类号： H02M1/4258 ,  H02M1/12 ,  Y02B70/126 ,  Y02P80/112

摘要： A method for reducing harmonic distortions and switching losses in a power factor correction circuit of a quasi-resonant voltage converter, wherein using data derived from the sensing a voltage impressed on the switching device in the power converter, a multitude of event times can be calculated that will align the timings of the drive circuitry of the power converter to those of the natural resonance transitions of reactive elements of the converter. An over-sampling of the voltage impressed on the switching device voltage allows accurate sensing of a “zero-current” cross-over condition in an inductance of the converter.

摘要翻译： 一种用于减少准谐振电压转换器的功率因数校正电路中的谐波失真和开关损耗的方法，其中使用从感测电压转换器中的开关器件上感应到的电压得到的数据，可以计算多个事件时间 这将使功率转换器的驱动电路的定时与转换器的无功元件的自然谐振转换的定时一致。 对开关器件电压施加的电压的过采样允许精确地检测转换器的电感中的“零电流”交叉条件。

公开(公告)号：US06674655B2

公开(公告)日：2004-01-06

申请号：US09752144

申请日：2000-12-29

申请人： Demetri Giannopoulos ,  Nai-Chi Lee ,  Qiong Li

发明人： Demetri Giannopoulos ,  Nai-Chi Lee ,  Qiong Li

IPC分类号： H02M3335

CPC分类号： H02M3/33507

摘要： A power supply comprising a flyback converter and a controller is disclosed. The flyback converter drives a load when electrically coupled to an alternating current power source. The controller controls a soft switching during each switching time period of the flyback converter. Upon an initial switching time period, the controller determines each acceptable switching frequency for the subsequent switching time periods and selects one of the acceptable switching frequencies for soft switching the flyback converter over one or more switching time periods during a constant load.

摘要翻译： 公开了一种包括反激转换器和控制器的电源。 电反馈转换器在电耦合到交流电源时驱动负载。 在回扫转换器的每个切换时间段期间，控制器控制软切换。 在初始切换时间段期间，控制器确定随后的切换时间段的每个可接受的切换频率，并且在恒定负载期间的一个或多个切换时间周期上选择可接受的切换频率中的一个用于软开关反激转换器。

公开(公告)号：US20060164176A1

公开(公告)日：2006-07-27

申请号：US10559837

申请日：2004-06-08

申请人： Qiong Li ,  Demetri Giannopoulos

发明人： Qiong Li ,  Demetri Giannopoulos

IPC分类号： H03K3/03

CPC分类号： H03K3/0315 ,  H03K5/133 ,  H03K7/08 ,  H03K2005/00026 ,  H03K2005/00032 ,  H03L7/0812

摘要： A high resolution pulse width modulation (PWM) or voltage controlled output (DCO) generator is disclosed. The resolution is increased over that of the circuit clock by delaying the generated signal through a series of delays, all of which are controlled by a delay locked loop. The delays are a small fraction of the clock period, thus providing resolution greater than that of the circuit clock.

摘要翻译： 公开了一种高分辨率脉宽调制（PWM）或压控输出（DCO）发生器。 通过将生成的信号延迟一系列延迟，所有这些都由延迟锁定环控制，分辨率比电路时钟的分辨率增加。 延迟是时钟周期的一小部分，因此提供比电路时钟更大的分辨率。

公开(公告)号：US06674379B1

公开(公告)日：2004-01-06

申请号：US10261223

申请日：2002-09-30

申请人： Qiong Li ,  Demetri Giannopoulos

发明人： Qiong Li ,  Demetri Giannopoulos

IPC分类号： H03M100

CPC分类号： G05B21/02

摘要： A digital controller comprises two control paths each having an A/D converter. One of the two converters has a substantially higher sampling speed and lower resolution than the other. Thus, one is suitable to deal with the fast responses while the other is suitable to deal with the slow responses, and can replace high-speed high-resolution A/D converter which is high in both cost and power consumption.

摘要翻译： 数字控制器包括两个具有A / D转换器的控制路径。 两个转换器之一具有比另一个更高的采样速度和更低的分辨率。 因此，适合于应对快速响应，另一种适用于处理慢响应，并且可以代替成本和功耗高的高速高分辨率A / D转换器。

公开(公告)号：US20110071700A1

公开(公告)日：2011-03-24

申请号：US12883839

申请日：2010-09-16

申请人： David L. Beck ,  Demetri Giannopoulos

发明人： David L. Beck ,  Demetri Giannopoulos

IPC分类号： G06F1/26

CPC分类号： H02M3/156

摘要： An auto-compensation method for compensating power regulators configured to generate a regulated output voltage. Auto-compensation may be performed dynamically by determining various coefficients of a compensation function used in compensating the power regulator, based on assumptions about the structure of the regulator and corresponding filters. The method may be used to determine at least the DC loop gain and the position of the compensation zeros, without requiring any prior knowledge of the values of the various components of the system. Furthermore, the selection of the compensation parameters (loop gain, position of zeroes) may be based on measurement of various state variables of the actual power converter, and adjustment of the various coefficients of the compensation function according to the measurements. Since no power-plant model of the power regulator is used, inaccuracies that would be inherent using any method that employs a model of the system instead of the system itself may be eliminated.

摘要翻译： 用于补偿功率调节器的自动补偿方法，该功率调节器被配置为产生调节的输出电压。 可以基于关于调节器的结构和相应的滤波器的假设来确定用于补偿功率调节器的补偿函数的各种系数，来动态地执行自动补偿。 该方法可以用于至少确定DC环路增益和补偿零点的位置，而不需要系统各种组件的值的任何先验知识。 此外，补偿参数（环路增益，零位置）的选择可以基于对实际功率转换器的各种状态变量的测量，以及根据测量值调整补偿功能的各种系数。 由于没有使用功率调节器的电厂模型，所以可以消除使用系统模型而不是系统本身的任何方法所固有的不准确。

公开(公告)号：US20070009268A1

公开(公告)日：2007-01-11

申请号：US10573748

申请日：2004-09-27

申请人： Demetri Giannopoulos

发明人： Demetri Giannopoulos

IPC分类号： H04B10/04 ,  G02B26/00

CPC分类号： H04N7/22 ,  H04N7/025 ,  H04N7/0255 ,  H04N7/04

摘要： A system and method is provided for transmitting data in a video signal by modulating a brightness level of the video signal. The invention comprises a video display unit that is capable of encoding data into a brightness level of a video signal and creating brightness modulated video images for display on a display screen. The invention also comprises a brightness modulated data receiver unit that is capable of receiving the brightness modulated video images from the display screen and decoding the data that is encoded in the brightness modulated video images. The modulation of the brightness level of the video signal is adjusted so that changes in the brightness level of the video signal are not perceptible to human vision.

摘要翻译： 提供了一种用于通过调制视频信号的亮度级来在视频信号中发送数据的系统和方法。 本发明包括能够将数据编码为视频信号的亮度级并创建用于在显示屏上显示的亮度调制视频图像的视频显示单元。 本发明还包括亮度调制数据接收器单元，其能够从显示屏幕接收亮度调制视频图像，并对在亮度调制视频图像中编码的数据进行解码。 视频信号的亮度级的调制被调整，使得视频信号的亮度水平的变化对于人类的视觉是不可察觉的。

公开(公告)号：US20060244624A1

公开(公告)日：2006-11-02

申请号：US10538605

申请日：2003-12-08

申请人： Ling Wang ,  Demetri Giannopoulos

发明人： Ling Wang ,  Demetri Giannopoulos

IPC分类号： G08B5/36

CPC分类号： H05B37/0272 ,  Y10T307/477

摘要： The present invention provides a master-slave architecture for a radio frequency RF networked lighting control system having all slave elements (ballasts) configured as backups for a network master control unit. In the system and method of the present invention a slave element can become the network master network unit without reconfiguring the network and without any human intervention. Similarly, both a master and one or more slave elements may recover from a temporary outage without necessitating reconfiguration of the network and without any human intervention.

公开(公告)号：US06788555B2

公开(公告)日：2004-09-07

申请号：US10255845

申请日：2002-09-26

申请人： Laurence Bourdillon ,  Demetri Giannopoulos ,  Nai-Chi Lee

发明人： Laurence Bourdillon ,  Demetri Giannopoulos ,  Nai-Chi Lee

IPC分类号： H02M3335

CPC分类号： H02M3/33584

摘要： A bi-directional flyback circuit includes a primary side switch that regulates the re-circulated energy to achieve substantially zero voltage switching (ZVS) and a secondary-side switch that regulates the output voltage. No feedback circuit between an output side and an input side of the bi-directional flyback circuit is needed for regulating the output voltage. The amount of recirculating energy required to achieve ZVS, and to maintain output regulation is kept substantially at a minimum.

摘要翻译： 双向回扫电路包括初级侧开关，其调节再循环能量以实现基本上零电压切换（ZVS）和调节输出电压的次级侧开关。 在双向反激电路的输出侧和输入侧之间不需要用于调节输出电压的反馈电路。 实现ZVS所需的再循环能量和维持输出调节的量基本保持在最低限度。

公开(公告)号：US07446671B2

公开(公告)日：2008-11-04

申请号：US10539983

申请日：2003-12-11

申请人： Demetri Giannopoulos ,  Ling Wang

发明人： Demetri Giannopoulos ,  Ling Wang

IPC分类号： G08B1/08

CPC分类号： H05B37/0245 ,  H05B37/02 ,  H05B37/0272

摘要： A method for associating a group of lighting units in a wireless-controlled lighting system to respective buttons or other control elements on a remote control. Each of the lighting units transmits, via modulation of its own illumination light, a unique identification code for the respective unit. The remote control is successively positioned to receive the modulated light from each lighting unit and, at each position, the user activates a respective control element of the remote control for association with the lighting unit. The remote control then transmits to a control master for the group the unique codes and codes identifying the respective control elements with which they have been associated.

摘要翻译： 一种将无线控制照明系统中的一组照明单元与遥控器上的各个按钮或其他控制元件相关联的方法。 每个照明单元通过其自己的照明光的调制来发送用于各个单元的唯一识别码。 遥控器被连续定位以接收来自每个照明单元的调制光，并且在每个位置，用户激活遥控器的相应控制元件以与照明单元相关联。 然后，遥控器向组的控制主机发送识别与它们相关联的相应控制元件的唯一代码和代码。