公开(公告)号：US09198256B2

公开(公告)日：2015-11-24

申请号：US13996050

申请日：2011-12-20

申请人： Yimin Chen ,  Nicholaos Hillas ,  Ajay Tripathi ,  Kaustuva Acharya ,  Raman Nair Harish Gopala Pillai

发明人： Yimin Chen ,  Nicholaos Hillas ,  Ajay Tripathi ,  Kaustuva Acharya ,  Raman Nair Harish Gopala Pillai

IPC分类号： G05F1/00 ,  H05B37/02 ,  H05B39/04 ,  H05B33/08

CPC分类号： H05B33/0887 ,  H05B33/0815 ,  H05B33/0848

摘要： A light driver having a primary side driver configured to convert an input from a mains power supply to a primary side output, and a secondary side driver coupled to the primary side driver and configured to rectify and filter the primary side output to provide a driver output current for driving a light load. A microcontroller controls the light driver at start-up so that the secondary side driver is powered-on and the primary side driver is in a non-powered state during a soft-start period, and subsequent to the soft-start period the secondary side driver is set to be in a low output state when powered-on and thereafter set to a state so that driver output current of the secondary side driver increases the light output from the light load from an initial dim level to a nominal dim level without flicker.

摘要翻译： 一种具有初级侧驱动器的光驱动器，其被配置为将来自主电源的输入转换为初级侧输出;以及次级侧驱动器，耦合到初级侧驱动器，并且被配置为对初级侧输出进行整流和滤波以提供驱动器输出 用于驱动轻负载的电流。 微控制器在启动时控制光驱动器，使得次级侧驱动器通电，并且初级侧驱动器在软启动期间处于非供电状态，并且在软启动周期之后，次级侧 驱动器在上电时被设置为处于低输出状态，然后被设置为使得次级侧驱动器的驱动器输出电流将从轻负载的光输出从初始昏暗电平增加到标称昏暗水平而不闪烁 。

公开(公告)号：US08957604B2

公开(公告)日：2015-02-17

申请号：US14234519

申请日：2012-07-24

申请人： Raman Nair Harish Gopala Pillai ,  Kaustuva Acharya ,  Ajay Tripathi

发明人： Raman Nair Harish Gopala Pillai ,  Kaustuva Acharya ,  Ajay Tripathi

IPC分类号： H05B37/02 ,  H05B33/08

CPC分类号： H05B33/0803 ,  H05B33/0809 ,  H05B33/0815 ,  H05B33/0887

摘要： A system for implementing mains-voltage-based dimming of a solid state lighting module includes a transformer, a mains sensing circuit and a processing circuit. The transformer includes a primary side connected to a primary side circuit and a secondary side connected to a secondary side circuit, the primary and second side circuits being separated by an isolation barrier. The mains sensing circuit receives a rectified mains voltage from the primary side circuit and generates a mains sense signal indicating amplitude of the rectified mains voltage. The processing circuit receives the mains sense signal from the mains sensing circuit across the isolation barrier, and outputs a dimming reference signal to the secondary side circuit in response to the mains sense signal. Light output by the solid state lighting module, connected to the secondary side circuit, is adjusted in response to the dimming reference signal output by the processing circuit.

摘要翻译： 用于实现固态照明模块的基于电源电压的调光的系统包括变压器，电源感测电路和处理电路。 变压器包括连接到初级侧电路的初级侧和连接到次级侧电路的次级侧，第一和第二侧电路由隔离屏障分开。 电源检测电路从初级侧电路接收整流的电源电压，并产生指示整流电源电压振幅的电源检测信号。 处理电路通过隔离屏障从电源感测电路接收电源检测信号，并响应于电源检测信号将调光参考信号输出到次级侧电路。 连接到次级侧电路的固态照明模块的光输出响应于由处理电路输出的调光参考信号进行调整。

公开(公告)号：US20120200232A1

公开(公告)日：2012-08-09

申请号：US13496651

申请日：2010-09-03

申请人： Robert A. Erhardt ,  William Lawrence Keith ,  Raman Nair Harish Gopala Pillai ,  Jerzy Janczak ,  Ningliang Mi ,  Srinivasa Baddela

发明人： Robert A. Erhardt ,  William Lawrence Keith ,  Raman Nair Harish Gopala Pillai ,  Jerzy Janczak ,  Ningliang Mi ,  Srinivasa Baddela

IPC分类号： H05B37/02

CPC分类号： H05B41/3921

摘要： An electronic ballast with dimming circuit including an electronic ballast dimming circuit receiving an analog dimming signal, the electronic ballast dimming circuit including an input dimming circuit (210) operable to receive the analog dimming signal (252) at an analog dimming signal input (212); and an output dimming circuit (220) operably connected to the input dimming circuit (210), the output dimming circuit (220) being operable to receive a fixed frequency signal (222) having a variable duty cycle and to generate an analog dimming control signal (224) in response to the analog dimming signal (252). Output voltage at the analog dimming signal input (212) is a function of the variable duty cycle of the fixed frequency signal (222) when the analog dimming signal (252) is not present at the analog dimming signal input (212).

摘要翻译： 一种具有调光电路的电子镇流器，包括接收模拟调光信号的电子镇流器调光电路，电子镇流器调光电路包括可操作以在模拟调光信号输入（212）处接收模拟调光信号（252）的输入调光电路（210） ; 和可操作地连接到输入调光电路（210）的输出调光电路（220），输出调光电路（220）可操作以接收具有可变占空比的固定频率信号（222）并产生模拟调光控制信号 （224）响应于模拟调光信号（252）。 当模拟调光信号输入（212）不存在模拟调光信号（252）时，模拟调光信号输入端（212）处的输出电压是固定频率信号（222）的可变占空比的函数。

公开(公告)号：US12123762B1

公开(公告)日：2024-10-22

申请号：US17463127

申请日：2021-08-31

申请人： Raman Nair Harish Gopala Pillai

发明人： Raman Nair Harish Gopala Pillai

IPC分类号： G01G19/44 ,  A61B5/00 ,  A61B5/0205 ,  A61B5/024 ,  A61B5/0537 ,  G01G3/142 ,  H04L67/10 ,  H04W88/04 ,  H04W88/16

CPC分类号： G01G19/44 ,  A61B5/0205 ,  A61B5/6892 ,  G01G3/142 ,  H04L67/10 ,  A61B5/02438 ,  A61B5/0537 ,  H04W88/04 ,  H04W88/16

摘要： A smart mat and scale to detect and communicate body weight of a user and other related data and a smart mat weight detection, calculation, and communication system configured to wirelessly communicate with nearby devices and over a network to a cloud application service and cloud database are disclosed smart mat (bathroom mat, shower mat, kitchen mat, work area mat, or other household mat or commonly used mat), that has circuitry to inconspicuously sense body weight and related data, transmit wirelessly to a phone or hub is disclosed. The smart mat presented herein incorporates technology to well-known household product and enables gathering of body weight data subconsciously and hence allowing gathering consistent data over period of time. It is also preferred to be flexible, light weight and withstand conventional cleaning practices.

公开(公告)号：US20140285103A1

公开(公告)日：2014-09-25

申请号：US14357626

申请日：2012-08-30

申请人： Kaustuva Acharya ,  Raman Nair Harish Gopala Pillai ,  Yimin Chen ,  Ajay Tripathi

发明人： Kaustuva Acharya ,  Raman Nair Harish Gopala Pillai ,  Yimin Chen ,  Ajay Tripathi

IPC分类号： H05B33/08

CPC分类号： H05B33/08 ,  H05B33/0812 ,  Y02B20/343

摘要： A programmable driver for driving a solid state lighting device includes a processing circuit, a voltage feedback loop and a power stage. The processing circuit is configured to determine a voltage reference signal based on a nominal current setting and a predetermined power limit. The voltage feedback loop is configured to receive the voltage reference signal and to determine a difference between a reference voltage indicated by the voltage reference signal and a drive voltage of the solid state lighting device. The power stage is configured to limit maximum output voltage for driving the solid state lighting device based at least in part on the determined difference between the reference voltage and the drive voltage of the solid state lighting device provided by the voltage feedback loop.

摘要翻译： 用于驱动固态照明装置的可编程驱动器包括处理电路，电压反馈回路和功率级。 处理电路被配置为基于标称电流设置和预定功率限制来确定电压参考信号。 电压反馈回路被配置为接收电压参考信号并且确定由电压参考信号指示的参考电压与固态照明装置的驱动电压之间的差。 功率级被配置为至少部分地基于由电压反馈回路提供的固态照明装置的参考电压和驱动电压之间的确定的差异来限制用于驱动固态照明装置的最大输出电压。

公开(公告)号：US20130271040A1

公开(公告)日：2013-10-17

申请号：US13996050

申请日：2011-12-20

申请人： Yimin Chen ,  Nicholaos Hillas ,  Ajay Tripathi ,  Kaustuva Acharya ,  Raman Nair Harish Gopala Pillai

发明人： Yimin Chen ,  Nicholaos Hillas ,  Ajay Tripathi ,  Kaustuva Acharya ,  Raman Nair Harish Gopala Pillai

IPC分类号： H05B33/08

CPC分类号： H05B33/0887 ,  H05B33/0815 ,  H05B33/0848

摘要： A light driver having a primary side driver configured to convert an input from a mains power supply to a primary side output, and a secondary side driver coupled to the primary side driver and configured to rectify and filter the primary side output to provide a driver output current for driving a light load. A microcontroller controls the light driver at start-up so that the secondary side driver is powered-on and the primary side driver is in a non-powered state during a soft-start period, and subsequent to the soft-start period the secondary side driver is set to be in a low output state when powered-on and thereafter set to a state so that driver output current of the secondary side driver increases the light output from the light load from an initial dim level to a nominal dim level without flicker.

摘要翻译： 一种具有初级侧驱动器的光驱动器，其被配置为将来自主电源的输入转换为初级侧输出;以及次级侧驱动器，耦合到初级侧驱动器，并且被配置为对初级侧输出进行整流和滤波以提供驱动器输出 用于驱动轻负载的电流。 微控制器在启动时控制光驱动器，使得次级侧驱动器通电，并且初级侧驱动器在软启动期间处于非供电状态，并且在软启动周期之后，次级侧 驱动器在上电时被设置为处于低输出状态，然后被设置为使得次级侧驱动器的驱动器输出电流将从轻负载的光输出从初始昏暗电平增加到无闪烁的标称昏暗电平 。

公开(公告)号：US09301347B2

公开(公告)日：2016-03-29

申请号：US14357626

申请日：2012-08-30

申请人： Kaustuva Acharya ,  Raman Nair Harish Gopala Pillai ,  Yimin Chen ,  Ajay Tripathi

发明人： Kaustuva Acharya ,  Raman Nair Harish Gopala Pillai ,  Yimin Chen ,  Ajay Tripathi

IPC分类号： H05B33/08

CPC分类号： H05B33/08 ,  H05B33/0812 ,  Y02B20/343

摘要： A programmable driver for driving a solid state lighting device includes a processing circuit, a voltage feedback loop and a power stage. The processing circuit is configured to determine a voltage reference signal based on a nominal current setting and a predetermined power limit. The voltage feedback loop is configured to receive the voltage reference signal and to determine a difference between a reference voltage indicated by the voltage reference signal and a drive voltage of the solid state lighting device. The power stage is configured to limit maximum output voltage for driving the solid state lighting device based at least in part on the determined difference between the reference voltage and the drive voltage of the solid state lighting device provided by the voltage feedback loop.

摘要翻译： 用于驱动固态照明装置的可编程驱动器包括处理电路，电压反馈回路和功率级。 处理电路被配置为基于标称电流设置和预定功率限制来确定电压参考信号。 电压反馈回路被配置为接收电压参考信号并且确定由电压参考信号指示的参考电压与固态照明装置的驱动电压之间的差。 功率级被配置为至少部分地基于由电压反馈回路提供的固态照明装置的参考电压和驱动电压之间的确定的差异来限制用于驱动固态照明装置的最大输出电压。

公开(公告)号：US09035571B2

公开(公告)日：2015-05-19

申请号：US13496651

申请日：2010-09-03

申请人： Robert A. Erhardt ,  William Lawrence Keith ,  Raman Nair Harish Gopala Pillai ,  Jerzy Janczak ,  Ningliang Mi ,  Srinivasa Baddela

发明人： Robert A. Erhardt ,  William Lawrence Keith ,  Raman Nair Harish Gopala Pillai ,  Jerzy Janczak ,  Ningliang Mi ,  Srinivasa Baddela

IPC分类号： G05F1/00 ,  H05B41/392

CPC分类号： H05B41/3921

摘要： An electronic ballast with dimming circuit including an electronic ballast dimming circuit receiving an analog dimming signal, the electronic ballast dimming circuit including an input dimming circuit (210) operable to receive the analog dimming signal (252) at an analog dimming signal input (212); and an output dimming circuit (220) operably connected to the input dimming circuit (210), the output dimming circuit (220) being operable to receive a fixed frequency signal (222) having a variable duty cycle and to generate an analog dimming control signal (224) in response to the analog dimming signal (252). Output voltage at the analog dimming signal input (212) is a function of the variable duty cycle of the fixed frequency signal (222) when the analog dimming signal (252) is not present at the analog dimming signal input (212).

摘要翻译： 一种具有调光电路的电子镇流器，包括接收模拟调光信号的电子镇流器调光电路，电子镇流器调光电路包括可操作以在模拟调光信号输入（212）处接收模拟调光信号（252）的输入调光电路（210） ; 和可操作地连接到输入调光电路（210）的输出调光电路（220），输出调光电路（220）可操作以接收具有可变占空比的固定频率信号（222）并产生模拟调光控制信号 （224）响应于模拟调光信号（252）。 当模拟调光信号输入（212）不存在模拟调光信号（252）时，模拟调光信号输入端（212）处的输出电压是固定频率信号（222）的可变占空比的函数。

公开(公告)号：US20140176008A1

公开(公告)日：2014-06-26

申请号：US14234519

申请日：2012-07-24

申请人： Raman Nair Harish Gopala Pillai ,  Kaustuva Acharya ,  Ajay Tripathi

发明人： Raman Nair Harish Gopala Pillai ,  Kaustuva Acharya ,  Ajay Tripathi

IPC分类号： H05B33/08

CPC分类号： H05B33/0803 ,  H05B33/0809 ,  H05B33/0815 ,  H05B33/0887

摘要： A system for implementing mains-voltage-based dimming of a solid state lighting module includes a transformer, a mains sensing circuit and a processing circuit. The transformer includes a primary side connected to a primary side circuit and a secondary side connected to a secondary side circuit, the primary and second side circuits being separated by an isolation barrier. The mains sensing circuit receives a rectified mains voltage from the primary side circuit and generates a mains sense signal indicating amplitude of the rectified mains voltage. The processing circuit receives the mains sense signal from the mains sensing circuit across the isolation barrier, and outputs a dimming reference signal to the secondary side circuit in response to the mains sense signal. Light output by the solid state lighting module, connected to the secondary side circuit, is adjusted in response to the dimming reference signal output by the processing circuit.

摘要翻译： 用于实现固态照明模块的基于电源电压的调光的系统包括变压器，电源感测电路和处理电路。 变压器包括连接到初级侧电路的初级侧和连接到次级侧电路的次级侧，第一和第二侧电路由隔离屏障分开。 电源检测电路从初级侧电路接收整流的电源电压，并产生指示整流电源电压振幅的电源检测信号。 处理电路通过隔离屏障从电源感测电路接收电源检测信号，并响应于电源检测信号将调光参考信号输出到次级侧电路。 连接到次级侧电路的固态照明模块的光输出响应于由处理电路输出的调光参考信号进行调整。