公开(公告)号：US08985850B1

公开(公告)日：2015-03-24

申请号：US12896520

申请日：2010-10-01

申请人： Kedar Godbole ,  Hariom Rai ,  Anita Meng

发明人： Kedar Godbole ,  Hariom Rai ,  Anita Meng

IPC分类号： G01K7/01 ,  H03K17/00

CPC分类号： G01K7/01 ,  G01K13/00 ,  H03K17/145

摘要： An adaptive algorithm running on a processing device receives a temperature value that represents a temperature at a gate terminal of a transistor. The adaptive algorithm, determines a drive strength value that represents a drive strength for a signal based on the temperature value. A signal with the determined drive strength is applied to the gate terminal of the transistor.

摘要翻译： 在处理装置上运行的自适应算法接收表示晶体管的栅极端子处的温度的温度值。 自适应算法确定表示基于温度值的信号的驱动强度的驱动强度值。 具有确定的驱动强度的信号被施加到晶体管的栅极端子。

公开(公告)号：US08093835B2

公开(公告)日：2012-01-10

申请号：US12238655

申请日：2008-09-26

申请人： Kedar Godbole ,  Hariom Rai

发明人： Kedar Godbole ,  Hariom Rai

IPC分类号： H05B37/02 ,  H05B39/04 ,  H05B41/36 ,  G05B1/00

CPC分类号： H05B33/0818

摘要： A light emitting driver circuit, system, and method are provided. The driver circuit system and method can be implemented in various ways. An embodiment includes a bypass circuit which diverts current from the LEDs whenever a switch coupled to the LEDs incurs residual current when turned off. In an additional or alternative embodiment, the residual current can be sensed and the amount of residual current used to trigger fetching of a compensation value. That compensation value can change a dimming function forwarded to the switch in order to compensate for, offset, or substantially eliminate the residual current through that switch.

摘要翻译： 提供了一种发光驱动电路，系统和方法。 驱动电路系统和方法可以以各种方式实现。 一个实施例包括旁路电路，每当耦合到LED的开关在关断时产生剩余电流时，该旁路电路从LED转向电流。 在附加或替代实施例中，可以感测剩余电流以及用于触发获取补偿值的剩余电流量。 该补偿值可以改变转发到开关的调光功能，以补偿，偏移或基本消除通过该开关的剩余电流。

公开(公告)号：US20100123411A1

公开(公告)日：2010-05-20

申请号：US12273322

申请日：2008-11-18

申请人： Kedar Godbole ,  Hariom Rai

发明人： Kedar Godbole ,  Hariom Rai

IPC分类号： H05B41/36

CPC分类号： H05B33/0815 ,  H05B33/0851

摘要： An embodiment of the present invention is directed to a method and circuit to control light emitting diode (LED) output. The method includes receiving a line voltage signal which powers a lighting circuit comprising an LED and determining an adjustment of a threshold based on a variation of the line voltage signal and/or a controller delay or other practical controller limitation or imperfection. The method further includes dynamically adjusting a threshold or other reference of a controller which controls a switch of said lighting circuit for compensating for line variations to maintain a substantially uniform LED current.

摘要翻译： 本发明的实施例涉及一种控制发光二极管（LED）输出的方法和电路。 该方法包括接收对包括LED的点亮电路供电的线路电压信号，并且基于线路电压信号的变化和/或控制器延迟或其他实际的控制器限制或缺陷来确定阈值的调整。 所述方法还包括动态地调整控制器的阈值或其它基准，所述控制器控制所述点亮电路的开关以补偿线路变化以维持基本均匀的LED电流。

公开(公告)号：US09179509B2

公开(公告)日：2015-11-03

申请号：US12331223

申请日：2008-12-09

申请人： Kedar Godbole ,  Hariom Rai

发明人： Kedar Godbole ,  Hariom Rai

IPC分类号： H05B37/02 ,  H05B33/08

CPC分类号： H05B33/0815 ,  Y02B20/346

摘要： A circuit in accordance with one embodiment of the invention can include a light emitting diode (LED) assembly comprising a plurality of LED channels that are controlled independently with a switch mode driver. The circuit also includes N+1 wires coupled to said LED assembly, where N is equal to the number of said plurality of LED channels of said LED assembly.

摘要翻译： 根据本发明的一个实施例的电路可以包括发光二极管（LED）组件，该发光二极管组件包括多个LED通道，其独立地用开关模式驱动器控制。 电路还包括耦合到所述LED组件的N + 1线，其中N等于所述LED组件的所述多个LED通道的数量。

公开(公告)号：US08829811B2

公开(公告)日：2014-09-09

申请号：US12273322

申请日：2008-11-18

申请人： Kedar Godbole ,  Hariom Rai

发明人： Kedar Godbole ,  Hariom Rai

IPC分类号： H05B37/02 ,  H05B33/08

CPC分类号： H05B33/0815 ,  H05B33/0851

摘要： An embodiment of the present invention is directed to a method and circuit to control light emitting diode (LED) output. The method includes receiving a line voltage signal which powers a lighting circuit comprising an LED and determining an adjustment of a threshold based on a variation of the line voltage signal and/or a controller delay or other practical controller limitation or imperfection. The method further includes dynamically adjusting a threshold or other reference of a controller which controls a switch of said lighting circuit for compensating for line variations to maintain a substantially uniform LED current.

摘要翻译： 本发明的实施例涉及一种控制发光二极管（LED）输出的方法和电路。 该方法包括接收对包括LED的点亮电路供电的线路电压信号，并且基于线路电压信号的变化和/或控制器延迟或其他实际的控制器限制或缺陷来确定阈值的调整。 所述方法还包括动态地调整控制器的阈值或其它基准，所述控制器控制所述点亮电路的开关以补偿线路变化以维持基本均匀的LED电流。

公开(公告)号：US08253339B1

公开(公告)日：2012-08-28

申请号：US12838363

申请日：2010-07-16

申请人： Kedar Godbole ,  Hariom Rai

发明人： Kedar Godbole ,  Hariom Rai

IPC分类号： H05B37/02 ,  H02J1/10

CPC分类号： H05B33/0887 ,  Y10T307/352 ,  Y10T307/625

摘要： A circuit may include a switch mode power converter that intermittently enables a current path in response to a switch control signal; a duty cycle measurement circuit that generates a duty cycle value corresponding to a duty cycle of the switch control signal; and an evaluation circuit that activates a failure indication in response to the duty cycle value being outside of at least one limit.

摘要翻译： 电路可以包括开关模式功率转换器，其响应于开关控制信号间歇地启用电流路径; 占空比测量电路，其生成与开关控制信号的占空比对应的占空比值; 以及评估电路，其响应于占空比值超出至少一个极限而激活故障指示。

公开(公告)号：US20100079090A1

公开(公告)日：2010-04-01

申请号：US12238655

申请日：2008-09-26

申请人： Kedar Godbole ,  Hariom Rai

发明人： Kedar Godbole ,  Hariom Rai

IPC分类号： H05B37/02

CPC分类号： H05B33/0818

摘要： A light emitting driver circuit, system, and method are provided. The driver circuit system and method can be implemented in various ways. An embodiment includes a bypass circuit which diverts current from the LEDs whenever a switch coupled to the LEDs incurs residual current when turned off. In an additional or alternative embodiment, the residual current can be sensed and the amount of residual current used to trigger fetching of a compensation value. That compensation value can change a dimming function forwarded to the switch in order to compensate for, offset, or substantially eliminate the residual current through that switch.

摘要翻译： 提供了一种发光驱动电路，系统和方法。 驱动电路系统和方法可以以各种方式实现。 一个实施例包括旁路电路，每当耦合到LED的开关在关断时产生剩余电流时，该旁路电路从LED转向电流。 在附加或替代实施例中，可以感测剩余电流以及用于触发获取补偿值的剩余电流量。 该补偿值可以改变转发到开关的调光功能，以补偿，偏移或基本消除通过该开关的剩余电流。

公开(公告)号：US20090267534A1

公开(公告)日：2009-10-29

申请号：US12331223

申请日：2008-12-09

申请人： Kedar Godbole ,  Hariom Rai

发明人： Kedar Godbole ,  Hariom Rai

IPC分类号： H05B41/36

CPC分类号： H05B33/0815 ,  Y02B20/346

摘要： A circuit in accordance with one embodiment of the invention can include a light emitting diode (LED) assembly comprising a plurality of LED channels that are controlled independently with a switch mode driver. The circuit also includes N+1 wires coupled to said LED assembly, where N is equal to the number of said plurality of LED channels of said LED assembly.

摘要翻译： 根据本发明的一个实施例的电路可以包括发光二极管（LED）组件，该发光二极管组件包括多个LED通道，其独立地用开关模式驱动器控制。 该电路还包括耦合到所述LED组件的N + 1线，其中N等于所述LED组件的所述多个LED通道的数量。

公开(公告)号：US08466634B2

公开(公告)日：2013-06-18

申请号：US12337876

申请日：2008-12-18

申请人： Kedar Godbole

发明人： Kedar Godbole

IPC分类号： H05B37/02 ,  G05F1/00

CPC分类号： H05B33/0845 ,  H05B33/0818

摘要： A driver circuit, and light emitting system and method are provided. The driver circuit includes possibly a controller and a phase detector coupled to produce an intermittent output proportional to a value of an input relative to upper and lower threshold values, and a difference between the input signal, which is the intermittent output signal, and a reference value. The light emitting system can include a switch and at least one light emitting device coupled to the switch. The driver circuit can be coupled to forward the intermittent output signal to the switch that is active in proportion to current level through the light emitting device, rising and falling between the modifiable upper and lower threshold values.

摘要翻译： 提供了一种驱动电路，以及发光系统和方法。 驱动器电路可能包括控制器和相位检测器，其耦合以产生与输入相对于上限和下限阈值成比例的间歇输出，以及作为间歇输出信号的输入信号与参考值之间的差值 值。 发光系统可以包括开关和耦合到开关的至少一个发光器件。 驱动器电路可以被耦合以将间歇输出信号转发到通过发光器件与当前电平成比例的有效的开关，其在可修改的上限和下限阈值之间上升和下降。

公开(公告)号：US20090160369A1

公开(公告)日：2009-06-25

申请号：US12341786

申请日：2008-12-22

申请人： Kedar Godbole ,  Doug Vargha

发明人： Kedar Godbole ,  Doug Vargha

IPC分类号： H05B37/02

CPC分类号： H05B33/0842 ,  H05B33/0815 ,  Y02B20/346

摘要： One embodiment in accordance with the invention can include a circuit for controlling a light emitting diode (LED) lighting fixture via a power line. The circuit can include a power switch coupled to the power line and is for outputting a firing angle. Additionally, the circuit can include a control circuit coupled to the power switch and is for implementing firing angle control of the power switch. Furthermore, the circuit can include a translator coupled to receive the firing angle and for mapping the firing angle to a function of the LED lighting fixture.

摘要翻译： 根据本发明的一个实施例可以包括用于经由电力线控制发光二极管（LED）照明器具的电路。 电路可以包括耦合到电力线并且用于输出触发角的电力开关。 此外，电路可以包括耦合到电源开关的控制电路，并且用于实现电源开关的触发角度控制。 此外，电路可以包括耦合以接收触发角的转换器，并且用于将触发角映射到LED照明器具的功能。