专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20130249518A1 Current-Sensing Auto-Calibration in Power Converters 有权
标题翻译：电流转换器中的电流检测自动校准
公开(公告)号：US20130249518A1
公开(公告)日：2013-09-26
申请号：US13534785
申请日：2012-06-27
申请人： Demetri J. Giannopoulos
发明人： Demetri J. Giannopoulos
IPC分类号： G05F1/46
CPC分类号： H02M3/156 , H02M2001/0009
摘要： An electronic circuit (EC) may include an integrated current-source with an output terminal that may couple to the output of a power converter (OPC) to draw current from the power converter. The EC may further include control circuitry for activating the integrated current-source and for effecting a ramping output voltage at the OPC, and begin current-sense calibration once the output voltage reaches a specified calibration voltage value (SCVV). The control circuitry may regulate the output voltage to the SCVV while current-sense calibration is being performed, to measure and store the resistance value of a current-sense element of the power regulator. With the current-sense calibration complete, the control circuitry may disable the integrated current-source, resume ramping the output voltage until it reaches a specified regulation value (SRVV), and regulate to the SRVV during normal operation. The SCVV is specified to be at least a magnitude lower than the SRVV.
摘要翻译：电子电路（EC）可以包括具有输出端子的集成电流源，输出端子可以耦合到功率转换器（OPC）的输出以从功率转换器抽取电流。 EC可以进一步包括用于激活集成电流源并用于在OPC处实现斜坡输出电压的控制电路，并且一旦输出电压达到指定的校准电压值（SCVV），则开始电流检测校准。控制电路可以在执行电流检测校准的同时调节到SCVV的输出电压，以测量和存储功率调节器的电流检测元件的电阻值。通过电流检测校准完成，控制电路可以禁用积分电流源，恢复斜坡输出电压直到达到指定的调节值（SRVV），并在正常运行期间调节到SRVV。 SCVV被指定为至少比SRVV的幅度更小。

2. 发明申请

US20090123161A1 LED SYSTEM FOR ILLUMINATION AND DATA TRANSMISSION 审中-公开
标题翻译：用于照明和数据传输的LED系统
公开(公告)号：US20090123161A1
公开(公告)日：2009-05-14
申请号：US12355810
申请日：2009-01-19
申请人： Xiaohong SUN , DEMETRI J. GIANNOPOULOS
发明人： Xiaohong SUN , DEMETRI J. GIANNOPOULOS
IPC分类号： H04B10/155
CPC分类号： H05B33/0818
摘要： A LED system (100) for illumination and data transmission employs a LED driver (110), an electronic switch (130), and an illumination unit (150). In a first illumination state, illumination unit (150) receives LED current(s) from LED driver (110) to emit a first light output. In a second illumination state, the illumination unit (150) receives additional LED current(s) from LED driver 110 via the electronic switch as controlled by the LED driver where the illumination unit (150) additionally emits a second light output. LED system (100) optically communicates a data bit with each transition of the illumination unit (150) from the first illumination state to the second illumination state, and vice-versa.
摘要翻译：用于照明和数据传输的LED系统（100）采用LED驱动器（110），电子开关（130）和照明单元（150）。在第一照明状态下，照明单元（150）从LED驱动器（110）接收LED电流以发射第一光输出。在第二照明状态下，照明单元（150）经由LED驱动器控制的电子开关从LED驱动器110接收额外的LED电流，其中照明单元（150）另外发射第二光输出。 LED系统（100）将数据位与照明单元（150）的每个转换从第一照明状态光传送到第二照明状态，反之亦然。

3. 发明授权

US06337544B1 Digital lamp signal processor 失效
标题翻译：数字灯信号处理器
公开(公告)号：US06337544B1
公开(公告)日：2002-01-08
申请号：US09460937
申请日：1999-12-14
申请人： Shenghong Wang , Demetri J. Giannopoulos , Ihor T. Wacyk
发明人： Shenghong Wang , Demetri J. Giannopoulos , Ihor T. Wacyk
IPC分类号： G05F100
CPC分类号： H05B41/2851 , H05B41/3925 , Y10S315/04
摘要： A digital lamp signal processor senses lamp current and lamp voltage in real time. These two signals are sufficient to obtain information, such as real lamp power calculation, necessary to control ballast operation and fault detection. The apparatus measures the phase of lamp current and voltage, the peak current and voltage, and calculates the average lamp current and voltage. The digital lamp signal processor eliminates the effect of parasitic capacitance of power wiring and a signal condition circuit. It may detect and control hard switching and apply over current and voltage protection. The apparatus directly processes AC signals, allowing for simple and easily integrated single chip design.
摘要翻译：数字灯信号处理器实时感测灯电流和灯电压。这两个信号足以获得控制镇流器运行和故障检测所必需的信息，如实际灯功率计算。该装置测量灯电流和电压的相位，峰值电流和电压，并计算平均灯电流和电压。数字灯信号处理器消除了电源线和信号状态电路的寄生电容的影响。它可以检测和控制硬开关，并应用过电流和电压保护。该设备直接处理交流信号，允许简单易于集成的单芯片设计。

4. 发明授权

US5680017A Driving scheme for minimizing ignition flash 失效
标题翻译：减少点火闪光的驱动方案
公开(公告)号：US5680017A
公开(公告)日：1997-10-21
申请号：US642686
申请日：1996-05-03
申请人： Paul R. Veldman , Demetri J. Giannopoulos , Ihor T. Wacyk
发明人： Paul R. Veldman , Demetri J. Giannopoulos , Ihor T. Wacyk
IPC分类号： H05B41/24 , G05F1/613 , H05B41/38 , H05B41/392 , G05F1/00
CPC分类号： G05F1/613 , H05B41/382 , H05B41/3921 , Y10S315/04
摘要： A ballast for powering a lamp at deep dim levels. Driving circuitry includes a feedback loop which compares a desired dim level to a signal representing actual lamp power consumption. The loop is closed once the signal representing actual lamp power consumption equals the desired dim level. During ignition, a switch in response to the lamp voltage reaching or exceeding a predetermined threshold opens the feedback loop. The feedback loop is closed once the lamp has been ignited. By closing the loop as soon as the lamp has been ignited, ignition flash is minimized.
摘要翻译：一个镇流器，用于为深度昏暗的灯光供电。驱动电路包括反馈回路，其将期望的调光水平与表示实际灯功率消耗的信号进行比较。一旦表示实际的灯功率消耗的信号等于所需的昏暗水平，环路闭合。在点火期间，响应于灯电压达到或超过预定阈值的开关打开反馈回路。灯泡点燃后，反馈回路闭合。一旦灯被点亮就关闭环路，点火闪光灯被最小化。

5. 发明申请

US20130285628A1 Integrated Power Supply with Wide Input Supply Voltage Range 有权
标题翻译：集成电源，宽输入电源电压范围
公开(公告)号：US20130285628A1
公开(公告)日：2013-10-31
申请号：US13534838
申请日：2012-06-27
申请人： Demetri J. Giannopoulos , Aaron Shreeve
发明人： Demetri J. Giannopoulos , Aaron Shreeve
IPC分类号： G05F1/10
CPC分类号： H02M1/36
摘要： A novel integrated switched mode power supply circuit that provides supply voltages to an integrated circuit may be of minimal complexity and have the capacity for a wide range of input supply voltages. The novel power supply may include cascaded, unregulated step-down charge pumps (e.g. unregulated voltage splitters), one or more linear regulators coupled to the output of the cascaded voltage splitters, and a start-up current source to provide the IC supply current until the input supply voltage is sufficiently high for the voltage splitter(s) to be functional to provide the IC supply current. Furthermore, each voltage splitter may be activated or disabled depending on the value of the input supply voltage, and the input of a disabled voltage splitter may be shorted to its output via an integrated power switch. Using (cascaded) voltage splitters to provide the IC supply current reduces overall power dissipation in the IC.
摘要翻译：向集成电路提供电源电压的新型集成开关模式电源电路可能具有最小的复杂性，并且具有宽范围的输入电源电压的能力。新颖的电源可以包括级联的，不受调节的降压电荷泵（例如非稳压分压器），耦合到级联分压器的输出的一个或多个线性稳压器以及提供IC供电电流的启动电流源，直到输入电源电压足够高以使分压器功能化以提供IC电源电流。此外，每个分压器可以根据输入电源电压的值被激活或禁用，并且禁用的分压器的输入可以通过集成的功率开关短路到其输出。使用（级联）分压器提供IC电源电流可以降低集成电路的整体功耗。

6. 发明授权

US6140777A Preconditioner having a digital power factor controller 失效
标题翻译：具有数字功率因数控制器的预调节器
公开(公告)号：US6140777A
公开(公告)日：2000-10-31
申请号：US124452
申请日：1998-07-29
申请人： Shenghong Wang , Ihor T. Wacyk , Demetri J. Giannopoulos
发明人： Shenghong Wang , Ihor T. Wacyk , Demetri J. Giannopoulos
IPC分类号： H02M7/12 , H02M1/00 , H02M1/42 , H02M3/155 , H05B41/28 , H05B37/02
CPC分类号： H02M1/4225 , H05B41/28 , Y02B70/126 , Y02P80/112
摘要： A ballast preconditioner serving as a boost regulator which includes a power factor controller. The preconditioner also includes a capacitor for producing a substantially DC voltage and a switch for controlling the amount of energy stored in the capacitor in response to a switching signal. The power factor controller includes a waveform generator having a look-up table for storing values of at least one waveform. The switching signal produced by the power factor controller is based on the at least one waveform accessed from the look-up table.
摘要翻译：用作升压调节器的镇流器预处理器，其包括功率因数控制器。预处理器还包括用于产生基本上DC电压的电容器和用于响应于开关信号来控制存储在电容器中的能量的开关。功率因数控制器包括具有用于存储至少一个波形的值的查找表的波形发生器。由功率因数控制器产生的开关信号基于从查找表访问的至少一个波形。

7. 发明授权

US08933681B2 Integrated power supply with wide input supply voltage range 有权
标题翻译：集成电源，输入电源电压范围宽
公开(公告)号：US08933681B2
公开(公告)日：2015-01-13
申请号：US13534838
申请日：2012-06-27
申请人： Demetri J. Giannopoulos , Aaron Shreeve
发明人： Demetri J. Giannopoulos , Aaron Shreeve
IPC分类号： G05F5/08
CPC分类号： H02M1/36
摘要： A novel integrated switched mode power supply circuit that provides supply voltages to an integrated circuit may be of minimal complexity and have the capacity for a wide range of input supply voltages. The novel power supply may include cascaded, unregulated step-down charge pumps (e.g. unregulated voltage splitters), one or more linear regulators coupled to the output of the cascaded voltage splitters, and a start-up current source to provide the IC supply current until the input supply voltage is sufficiently high for the voltage splitter(s) to be functional to provide the IC supply current. Furthermore, each voltage splitter may be activated or disabled depending on the value of the input supply voltage, and the input of a disabled voltage splitter may be shorted to its output via an integrated power switch. Using (cascaded) voltage splitters to provide the IC supply current reduces overall power dissipation in the IC.
摘要翻译：向集成电路提供电源电压的新型集成开关模式电源电路可能具有最小的复杂性，并且具有宽范围的输入电源电压的能力。新颖的电源可以包括级联的，不受调节的降压电荷泵（例如非稳压分压器），耦合到级联分压器的输出的一个或多个线性稳压器以及提供IC供电电流的启动电流源，直到输入电源电压足够高以使分压器功能化以提供IC电源电流。此外，每个分压器可以根据输入电源电压的值被激活或禁用，并且禁用的分压器的输入可以通过集成的功率开关短路到其输出。使用（级联）分压器提供IC电源电流可以降低集成电路的整体功耗。

8. 发明授权

US06300723B1 Apparatus for power factor control 失效
标题翻译：功率因数控制装置
公开(公告)号：US06300723B1
公开(公告)日：2001-10-09
申请号：US09652937
申请日：2000-08-31
申请人： Shenghong Wang , Ihor T. Wacyk , Demetri J. Giannopoulos
发明人： Shenghong Wang , Ihor T. Wacyk , Demetri J. Giannopoulos
IPC分类号： H05B4116
CPC分类号： H02M1/4225 , H05B41/28 , Y02B70/126 , Y02P80/112
摘要： An apparatus for power factor control includes a capacitor for producing a substantially DC voltage and a switch for controlling the amount of energy stored in the capacitor in response to a switching signal. The switching signal is produced by the power factor controller and is based on a sinusoidal waveform that is independent of the waveform of an AC supply voltage for energizing an electric load.
摘要翻译：用于功率因数控制的装置包括用于产生大致直流电压的电容器和用于响应于开关信号控制存储在电容器中的能量的开关。切换信号由功率因数控制器产生，并且基于与用于激励电负载的AC电源电压的波形无关的正弦波形。

9. 发明授权

US5742134A Inverter driving scheme 失效
标题翻译：逆变器驱动方案
公开(公告)号：US5742134A
公开(公告)日：1998-04-21
申请号：US642688
申请日：1996-05-03
申请人： Ihor T. Wacyk , Demetri J. Giannopoulos
发明人： Ihor T. Wacyk , Demetri J. Giannopoulos
IPC分类号： H02M7/537 , H05B41/295 , H05B41/392 , G05F1/00
CPC分类号： H05B41/2986 , H02M7/537 , H05B41/2828 , H05B41/295 , H05B41/3925 , Y10S315/04
摘要： An inverter for powering a lamp at deep dim levels. Inverter driving circuitry includes a feedback loop which compares desired dim level to signal representing actual lamp power consumption. Reproducibility of desired lighting conditions for different types of lamps powered by the same ballast over a wide range of temperatures is also provided.
摘要翻译：用于为深度昏暗水平的灯供电的逆变器。逆变器驱动电路包括反馈回路，其将期望的调光度与表示实际灯功率消耗的信号进行比较。还提供了在宽温度范围内由相同镇流器供电的不同类型的灯的期望照明条件的再现性。

10. 发明授权

US5696431A Inverter driving scheme for capacitive mode protection 失效
标题翻译：用于电容模式保护的变频器驱动方案
公开(公告)号：US5696431A
公开(公告)日：1997-12-09
申请号：US642318
申请日：1996-05-03
申请人： Demetri J. Giannopoulos , Paul R. Veldman
发明人： Demetri J. Giannopoulos , Paul R. Veldman
IPC分类号： H05B41/24 , H05B41/285 , H05B41/298 , H05B41/392 , G05F1/00
CPC分类号： H05B41/2986 , H05B41/2856 , H05B41/3925 , Y10S315/04
摘要： An inverter driving scheme for detecting when an inverter is in or near a capacitive mode of operation. In response to being within a capacitive mode of operation, the switching frequency is immediately increased to its maximum setting. When a near capacitive mode of operation is detected, the switching frequency is increased at a preset rate. During overvoltage conditions across the lamp combined with a near capacitive mode of operation, the switching frequency is immediately increased to its maximum setting.
摘要翻译：一种用于检测何时在逆变器处于或接近电容性操作模式的逆变器驱动方案。响应于处于电容操作模式，开关频率立即增加到其最大设定值。当检测到近似电容性操作模式时，开关频率以预设速率增加。在过电压条件下，与近电容工作模式相结合，开关频率立即增加到最大设定值。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式