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1. 发明授权

US09241380B2 Hybrid dimming control techniques for lighting drivers 有权
标题翻译：照明驱动器的混合调光控制技术
公开(公告)号：US09241380B2
公开(公告)日：2016-01-19
申请号：US14196619
申请日：2014-03-04
申请人： Bernhard Siessegger , Benjamin Alexandrovich
发明人： Bernhard Siessegger , Benjamin Alexandrovich
IPC分类号： H05B41/00 , H05B33/08
CPC分类号： H05B33/0818 , H05B33/0815 , H05B33/0821 , H05B33/0824 , H05B33/0827 , H05B33/083 , H05B33/0845 , Y02B20/347
摘要： Techniques are disclosed for independent control of individual LED strings driven from a single AC current source. A lighting driver circuit includes a DC-AC inverter with series resonance that provides a current that may be split into multiple currents for driving multiple LED assemblies. Current splitting transformers may be used to divide the current from the AC source, and the amplitude of the current from the AC source may be determined by a microcontroller. In some cases the current splitting transformers provide galvanic isolation to the LED assemblies. The multiple LED assemblies may be controlled by a number of switches that may independently activate the individual LED assemblies based on the duty cycle of multiple PWM signals provided to the switches by the microcontroller. When all of the PWM signals output from the microcontroller are on an off-cycle, the current source may be turned off.
摘要翻译：公开了用于独立控制从单个AC电流源驱动的各个LED串的技术。照明驱动器电路包括具有串联谐振的DC-AC逆变器，其提供可分为多个电流以驱动多个LED组件的电流。可以使用电流分流变压器来分配来自AC源的电流，并且来自AC源的电流的幅度可以由微控制器确定。在某些情况下，电流分流变压器为LED组件提供电流隔离。多个LED组件可以由多个开关控制，这些开关可以基于由微控制器提供给开关的多个PWM信号的占空比独立地激活各个LED组件。当从微控制器输出的所有PWM信号都处于断开周期时，电流源可能会关闭。

2. 发明授权

US09491820B2 Hybrid dimming control techniques for LED drivers 有权
标题翻译： LED驱动器的混合调光控制技术
公开(公告)号：US09491820B2
公开(公告)日：2016-11-08
申请号：US14196541
申请日：2014-03-04
申请人： Bernhard Siessegger , Benjamin Alexandrovich
发明人： Bernhard Siessegger , Benjamin Alexandrovich
IPC分类号： H05B41/24 , H05B41/38 , H05B41/392 , H05B33/08
CPC分类号： H05B33/0818 , H05B33/0809 , H05B33/0821 , H05B33/0827 , H05B33/0845
摘要： Techniques are disclosed for dimming LED strings using frequency modulation (FM) dimming and burst control dimming. At high brightness levels, FM dimming may be used to decrease the current through LED strings by increasing the switching frequency of pulses within a pulse train of an AC current source. At low brightness levels, or after the switching frequency has been increased to the resonant frequency of the current source, burst control dimming may decrease the current through LED strings by decreasing the duty cycle of the pulse train of the current source. At high brightness levels, FM dimming and burst control dimming may be combined by decreasing the duty cycle of the pulse train at each of a number of increasing switching frequency values. FM dimming may also be combined with frequency hopping in order to increase the number of available frequency steps.
摘要翻译：公开了使用调频（FM）调光和突发控制调光的调光LED串的技术。在高亮度级别，通过增加AC电流源的脉冲串内的脉冲的开关频率，可以使用FM调光来减小通过LED串的电流。在低亮度级别，或者在开关频率增加到电流源的谐振频率之后，突发控制调光可以通过减小电流源的脉冲串的占空比来减小通过LED串的电流。在高亮度水平下，可以通过在多个增加的开关频率值中的每一个处降低脉冲串的占空比来组合FM调光和突发控制调光。 FM调光也可以与跳频组合，以增加可用频率步长的数量。

3. 发明申请

US20150257222A1 HYBRID DIMMING CONTROL TECHNIQUES FOR LED DRIVERS 有权
标题翻译： LED驱动器的混合调试控制技术
公开(公告)号：US20150257222A1
公开(公告)日：2015-09-10
申请号：US14196541
申请日：2014-03-04
申请人： Bernhard Siessegger , Benjamin Alexandrovich
发明人： Bernhard Siessegger , Benjamin Alexandrovich
IPC分类号： H05B33/08
CPC分类号： H05B33/0818 , H05B33/0809 , H05B33/0821 , H05B33/0827 , H05B33/0845
摘要： Techniques are disclosed for dimming LED strings using frequency modulation (FM) dimming and burst control dimming. At high brightness levels, FM dimming may be used to decrease the current through LED strings by increasing the switching frequency of pulses within a pulse train of an AC current source. At low brightness levels, or after the switching frequency has been increased to the resonant frequency of the current source, burst control dimming may decrease the current through LED strings by decreasing the duty cycle of the pulse train of the current source. At high brightness levels, FM dimming and burst control dimming may be combined by decreasing the duty cycle of the pulse train at each of a number of increasing switching frequency values. FM dimming may also be combined with frequency hopping in order to increase the number of available frequency steps.
摘要翻译：公开了使用调频（FM）调光和突发控制调光的调光LED串的技术。在高亮度级别，通过增加AC电流源的脉冲串内的脉冲的开关频率，可以使用FM调光来减小通过LED串的电流。在低亮度级别，或者在开关频率增加到电流源的谐振频率之后，突发控制调光可以通过减小电流源的脉冲串的占空比来减小通过LED串的电流。在高亮度水平下，可以通过在多个增加的开关频率值中的每一个处降低脉冲串的占空比来组合FM调光和突发控制调光。 FM调光也可以与跳频组合，以增加可用频率步长的数量。

4. 发明申请

US20150257223A1 HYBRID DIMMING CONTROL TECHNIQUES FOR LIGHTING DRIVERS 有权
标题翻译：用于照明驱动器的混合调试控制技术
公开(公告)号：US20150257223A1
公开(公告)日：2015-09-10
申请号：US14196619
申请日：2014-03-04
申请人： Bernhard Siessegger , Benjamin Alexandrovich
发明人： Bernhard Siessegger , Benjamin Alexandrovich
IPC分类号： H05B33/08
CPC分类号： H05B33/0818 , H05B33/0815 , H05B33/0821 , H05B33/0824 , H05B33/0827 , H05B33/083 , H05B33/0845 , Y02B20/347
摘要： Techniques are disclosed for independent control of individual LED strings driven from a single AC current source. A lighting driver circuit includes a DC-AC inverter with series resonance that provides a current that may be split into multiple currents for driving multiple LED assemblies. Current splitting transformers may be used to divide the current from the AC source, and the amplitude of the current from the AC source may be determined by a microcontroller. In some cases the current splitting transformers provide galvanic isolation to the LED assemblies. The multiple LED assemblies may be controlled by a number of switches that may independently activate the individual LED assemblies based on the duty cycle of multiple PWM signals provided to the switches by the microcontroller. When all of the PWM signals output from the microcontroller are on an off-cycle, the current source may be turned off.
摘要翻译：公开了用于独立控制从单个AC电流源驱动的各个LED串的技术。照明驱动器电路包括具有串联谐振的DC-AC逆变器，其提供可分为多个电流以驱动多个LED组件的电流。可以使用电流分流变压器来分配来自AC源的电流，并且来自AC源的电流的幅度可以由微控制器确定。在某些情况下，电流分流变压器为LED组件提供电流隔离。多个LED组件可以由多个开关控制，这些开关可以基于由微控制器提供给开关的多个PWM信号的占空比独立地激活各个LED组件。当从微控制器输出的所有PWM信号都处于断开周期时，电流源可能会关闭。

5. 发明授权

US10542221B2 Light-based communication using camera frame-rate based light modulation 有权
公开(公告)号：US10542221B2
公开(公告)日：2020-01-21
申请号：US15642381
申请日：2017-07-06
申请人： Barry Stout , Bernhard Siessegger , Christian Breuer , Yang Li
发明人： Barry Stout , Bernhard Siessegger , Christian Breuer , Yang Li
IPC分类号： H04N5/235 , H04N5/225 , H04N5/378 , H04N5/353
摘要： A method of Light-based Communication (LCom) using camera frame-rate based light modulation is provided. The method includes receiving light having modulated light properties that vary at a first frequency from a LCom-enabled luminaire by an image capture device using a global shutter image capture process, comparing light properties received at the image capture device over sequential image capture instances, and determining, from the compared light properties, data encoded by the modulated light.

6. 发明授权

US10185295B2 Dynamic control of switching frequency in a switch mode power converter 有权
公开(公告)号：US10185295B2
公开(公告)日：2019-01-22
申请号：US14870090
申请日：2015-09-30
申请人： Bernhard Siessegger , Saijun Zhang
发明人： Bernhard Siessegger , Saijun Zhang
IPC分类号： H02J3/12 , G05B15/02 , H02M1/00
摘要： A controller dynamically identifies a switching frequency based power converter output load condition, input voltage, and/or temperature. The controller updates the operating switching frequency to the identified target switching frequency when the identified switching frequency is sufficiently different than a current operating switching frequency of the power converter. In this respect, switching frequency may be dynamically controlled to strike a balance between avoiding saturation of inductive elements and efficient operation of a power converter. A controller may also dynamically control switching frequency by having a thermo resistor incorporated into circuitry that determines switching frequency such that an increase in temperature beyond the threshold temperature directly causes a decrease in switching frequency.

7. 发明申请

US20180348051A1 DEVICE AND SYSTEM FOR MEASURING FLICKER 审中-公开
公开(公告)号：US20180348051A1
公开(公告)日：2018-12-06
申请号：US15613311
申请日：2017-06-05
申请人： Alireza Safaee , Bernhard Siessegger , Marijan Kostrun
发明人： Alireza Safaee , Bernhard Siessegger , Marijan Kostrun
IPC分类号： G01J1/44
摘要： Techniques are disclosed for measuring an amount of flicker produced by a light source. In one embodiment, a flicker measuring device includes a photo sensor to measure the amount of light produced by the light source, a dedicated processor to receive and process data from the photo sensor, a memory bus coupled to an analog-to-digital converter (ADC) and to a first memory, and a direct memory access (DMA) bus coupled to the ADC and to a second memory. In another embodiment, a flicker measuring system uses a light sensor, an associated circuit and a portable computing device (PCD), such as a smart phone, to measure an amount of flicker produced by a light source by sending an electrical signal from the light source and associated circuit via an audio output to an audio sub-system of the PCD, so that the PCD may calculate the flicker value.

8. 发明授权

US09859812B2 Auxiliary power supply for lighting driver circuitry 有权
公开(公告)号：US09859812B2
公开(公告)日：2018-01-02
申请号：US14373075
申请日：2013-01-21
申请人： OSRAM SYLVANIA INC. , Bernhard Siessegger , Colin Coleman
发明人： Bernhard Siessegger , Colin Coleman
IPC分类号： H02M7/06 , H05B37/02 , H05B33/08 , H01L25/16 , H05B41/39 , H01L27/15 , H01L33/62 , H01L25/075 , G01R31/26 , G01R31/40 , G01R31/44 , G01R31/02
CPC分类号： H02M7/06 , G01R31/028 , G01R31/2633 , G01R31/2635 , G01R31/40 , G01R31/44 , H01L25/0753 , H01L25/167 , H01L27/156 , H01L33/62 , H01L2224/48091 , H01L2224/48227 , H01L2224/48247 , H01L2924/12032 , H01L2924/12044 , H01L2924/1301 , H01L2924/13033 , H01L2924/1305 , H01L2924/13091 , H05B33/0803 , H05B33/0806 , H05B33/0812 , H05B33/0815 , H05B33/0821 , H05B33/0827 , H05B33/083 , H05B33/0845 , H05B33/0848 , H05B33/0851 , H05B33/086 , H05B33/0884 , H05B33/0893 , H05B37/02 , H05B37/0209 , H05B41/39 , Y02B20/343 , Y02B20/345 , Y02B20/346 , Y02B20/347 , Y10T307/615 , H01L2924/00014 , H01L2924/00
摘要： Techniques for supplying auxiliary power to lighting driver circuitry are disclosed. An auxiliary power supply can be used, for example, to provide auxiliary power to a current source that drives an LED string. In some embodiments, the LED string is effectively used as a series resistor to charge a capacitor that provides the auxiliary voltage Vaux. As soon as the capacitor is charged to a given threshold, the LED string can be disconnected from the capacitor and the current through the LED string bypasses the auxiliary supply circuit. Thus, the current source provides a current through the LED string, which in turn may be selectively fed to the auxiliary power supply to provide auxiliary power back to the current source or to provide auxiliary power to other circuitry.

9. 发明授权

US09408258B2 Power line communication for lighting systems 有权
公开(公告)号：US09408258B2
公开(公告)日：2016-08-02
申请号：US14062496
申请日：2013-10-24
申请人： Bernhard Siessegger
发明人： Bernhard Siessegger
IPC分类号： H05B33/08 , H04B3/54
CPC分类号： H05B33/0803 , H04B3/548 , H04B2203/5416 , H05B33/0818 , H05B33/0854
摘要： Techniques are provided for bi-directional communication between a power supply and one or more light engines (and/or other lighting system components) via the existing power lines so that no additional communication wires are needed. In particular, the power supply can transmit information by modulating its output (voltage or current) and the light engine (or other lighting componentry, such as a sensor) can communicate back by modulating how much power it draws from the power supply. Any suitable type of modulation scheme can be used, and a master-slave arrangement can be used to control the bi-directional communication if so desired, so as to avoid multiple devices communicating over the power line communication channel at the same time. Other embodiments allow a multiple simultaneous communications over the power line communication channel.

10. 发明申请

US20160202678A1 HUMAN PRESENCE DETECTION COMMISSIONING TECHNIQUES 审中-公开
标题翻译：人类存在检测调试技术
公开(公告)号：US20160202678A1
公开(公告)日：2016-07-14
申请号：US15078980
申请日：2016-03-23
申请人： Anant Aggarwal , Bernhard Siessegger
发明人： Anant Aggarwal , Bernhard Siessegger
IPC分类号： G05B15/02 , G01V8/10 , H04N5/33
摘要： Techniques are disclosed for detecting stationary presence using IR sensor array. A number of IR images may be captured. Of the IR images captured by the IR sensor array certain pixels can be identified as causing false triggers. These pixels can be identified and filtered to be ignored. The non-filtered pixels of IR images may be averaged over various time intervals to calculate a number of average IR frames. The difference between these average IR frames provides a delta frame. A mask frame may be calculated as the summation of delta frames over time, and the value of the mask frame may be used to detect a stationary human presence even when no delta value is calculated. Alternatively, the mask frame may be used to calculate a background frame that represents the IR signature of stationary or cyclical objects within the scanned area that are not intended to trigger the presence detection system. A stationary presence may be determined by subtracting the background frame from a current average IR frame.
摘要翻译：公开了用于使用IR传感器阵列检测静态存在的技术。可以捕获多个IR图像。在IR传感器阵列捕获的IR图像中，某些像素可能会被识别为导致假触发。可以识别和过滤这些像素以被忽略。 IR图像的未经滤波的像素可以在各种时间间隔上进行平均以计算平均IR帧的数量。这些平均IR帧之间的差异提供了三角形帧。可以将掩模帧计算为随时间的增量帧的总和，并且即使没有计算delta值，也可以使用掩码帧的值来检测静止的人的存在。或者，掩模框可以用于计算表示扫描区域内的不旨在触发存在检测系统的静止或循环对象的IR签名的背景帧。可以通过从当前平均IR帧减去背景帧来确定静止存在。

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