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1. 发明授权

US06510066B2 Switch mode power supply and method for transferring data across a power transformer 失效
标题翻译：开关电源和通过电源变压器传输数据的方法
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。

2. 发明授权

US06674655B2 Control method and apparatus for a flyback converter 失效
标题翻译：反激式转换器的控制方法和装置
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。

3. 发明授权

US06788555B2 Regulation of bi-directional flyback converter 失效
标题翻译：双向反激转换器的调节
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。

4. 发明授权

US06844702B2 System, method and apparatus for contact-less battery charging with dynamic control 失效
标题翻译：具有动态控制功能的无触点充电电池的系统，方法和装置
公开(公告)号：US06844702B2
公开(公告)日：2005-01-18
申请号：US10146770
申请日：2002-05-16
申请人： Demetri Giannopoulos , Qiong M Li , Nai-Chi Lee
发明人： Demetri Giannopoulos , Qiong M Li , Nai-Chi Lee
IPC分类号： H02J7/00 , H01M10/44 , H02J7/02 , H02J17/00 , H02M3/28
CPC分类号： H02J50/12 , H02J7/025
摘要： A system, method and apparatus for contact-less charging of battery operated devices, including a host charger with a power converter and resonant tank circuit and a portable device where the battery is located, with a battery charging control IC, wherein the method obviates the need for a voltage controller in each of both the host and the portable stages. The charging of the battery in the portable device is controlled by a charging controller therein, which is in continual electric communication with the host, whose output power the control IC dynamically monitors and controls. In one embodiment, component count is minimized but battery charging is not optimized when the battery voltage is very low. In the other embodiment, charging efficiency is maximized regardless of the output voltage of the battery.
摘要翻译：一种具有电池充电控制IC的电池供电装置的无接触充电的系统，方法和装置，包括具有电力转换器和谐振回路的主充电器和电池所在的便携式装置，其中该方法消除需要在主机和便携级中的每一个中的电压控制器。便携式设备中的电池的充电由其中的充电控制器控制，该充电控制器与主机持续电通信，其控制IC的动力监视和控制的输出功率。在一个实施例中，当电池电压非常低时，元件数量被最小化，但电池充电未被优化。在另一实施例中，无论电池的输出电压如何，充电效率最大化。

5. 发明授权

US06549432B1 Single-winding, multiple-output, bi-directional flyback converter 失效
标题翻译：单绕组，多输出双向反激式转换器
公开(公告)号：US06549432B1
公开(公告)日：2003-04-15
申请号：US10086028
申请日：2002-02-28
申请人： Demetri Giannopoulos , Laurence Bourdillon , Nai-Chi Lee
发明人： Demetri Giannopoulos , Laurence Bourdillon , Nai-Chi Lee
IPC分类号： H02M3335
CPC分类号： H02M3/33561
摘要： A multiple-output, bi-directional flyback converter with soft switching of an input switch is disclosed. The primary-side of the converter is comprised of an input power supply, a transformer with a primary winding and a secondary winding, and an input switch with an associated diode, wherein a first end of the primary winding is connected to the input power supply and a second end of the primary winding is connected to the input switch. A first predetermined number of output voltage circuits are connected to a single secondary winding or one of a plurality of secondary windings each producing an output voltage. Each output voltage circuit has an output switch with an associated diode, and a diode connected in series between the output voltage switch and the secondary winding. A last output voltage circuit with a bi-directional switch and associated diode is connected connection to the secondary winding. A control unit controls the switching of the input switch, the predetermined number of output switches and the bi-directional switch, wherein the switching of the bi-directional switch is controlled so as to allow for soft switching of the input switch.
摘要翻译：公开了一种具有输入开关的软开关的多输出双向反激式转换器。转换器的初级侧包括输入电源，具有初级绕组的变压器和次级绕组，以及具有相关二极管的输入开关，其中初级绕组的第一端连接到输入电源并且初级绕组的第二端连接到输入开关。第一预定数量的输出电压电路连接到单个次级绕组或者产生输出电压的多个次级绕组中的一个。每个输出电压电路具有一个具有相关二极管的输出开关和一个串联连接在输出电压开关和次级绕组之间的二极管。具有双向开关和相关二极管的最后一个输出电压电路连接到次级绕组。控制单元控制输入开关，预定数量的输出开关和双向开关的切换，其中控制双向开关的切换以允许输入开关的软开关。

6. 发明授权

US06421256B1 Method for reducing mains harmonics and switching losses in discontinuous-mode, switching power converters 失效
标题翻译：用于降低不连续模式开关电源转换器中的电源谐波和开关损耗的方法
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。

7. 发明申请

US20060164176A1 High resolution pwm generator or digitally controlled oscillator 有权
标题翻译：高分辨率pwm发生器或数字控制振荡器
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。

8. 发明授权

US06674379B1 Digital controller with two control paths 失效
标题翻译：数字控制器具有两个控制路径
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。

9. 发明申请

US20110071700A1 Auto-Compensating Power Converter 有权
标题翻译：自动补偿电源转换器
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。

10. 发明申请

US20070009268A1 System and method for transmitting data in a video signal by modulating a video signal brightness level 审中-公开
标题翻译：通过调制视频信号亮度水平在视频信号中传输数据的系统和方法
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。

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