公开(公告)号：US20080150450A1

公开(公告)日：2008-06-26

申请号：US11671907

申请日：2007-02-06

Applicant: Timothy E. Starr ,  Teddy D. Thomas ,  Michael P. Kosteva ,  John J. Palczynski ,  Mark S. Pieper

Inventor： Timothy E. Starr ,  Teddy D. Thomas ,  Michael P. Kosteva ,  John J. Palczynski ,  Mark S. Pieper

IPC: H05B41/36

CPC classification number: H05B33/0818 ,  Y02B20/347 ,  Y02B20/383

Abstract: Various systems and methods for lighting are disclosed. For example, some embodiments of the present invention provide methods for retrofitting lights. The methods include providing a solid state light bulb. The solid state light bulb includes: an LED array, a dimming control circuit, and a current regulator. The current regulator provides an LED current to the LED array. The LED current varies based on a control from the dimming control circuit. The methods further include, electrically coupling the solid state light bulb to an existing incandescent dimmer switch, and adjusting the existing incandescent dimmer switch such that the intensity of light emitted from the LED array is adjusted in proportion to the adjustment of the existing incandescent dimmer switch.

Abstract translation: 公开了各种照明系统和方法。 例如，本发明的一些实施例提供了用于改装灯的方法。 所述方法包括提供固态灯泡。 固态灯泡包括：LED阵列，调光控制电路和电流调节器。 电流调节器为LED阵列提供LED电流。 LED电流根据来自调光控制电路的控制而变化。 所述方法还包括将固态灯泡电耦合到现有的白炽灯调光开关，并且调节现有的白炽灯调光开关，使得从LED阵列发射的光的强度与现有的白炽灯调光开关 。

公开(公告)号：US5861737A

公开(公告)日：1999-01-19

申请号：US893803

申请日：1997-07-11

Applicant: Ulrich B. Goerke ,  Mark S. Pieper

Inventor： Ulrich B. Goerke ,  Mark S. Pieper

IPC: H03K17/16 ,  G05F1/40 ,  G05F1/46 ,  G05F1/575 ,  H03K17/687

CPC classification number: G05F1/575 ,  G05F1/468 ,  Y10S323/901

Abstract: A MOSFET, an op-amp, a comparator circuit, and voltage dividers with capacitors are employed in combination to effectuate a soft-start switch with current limiting. The transconductance of the MOSFET is employed so that no sense resistor is required. The MOSFET and op-amp are configured as a closed-loop feedback circuit in which the output of the op-amp is coupled to the gate of the MOSFET and the inverting input of the op-amp is coupled to the output of the soft-start switch via a voltage divider. A first RC circuit provides a voltage to the non-inverting input of the op-amp which can be triggered to gradually rise from a value close to zero to some reference voltage so as to soft-start a load. Current limiting means are effectuated by a comparator circuit and voltage dividers with capacitors. The current limiting means brings the MOSFET to an OFF state and the non-inverting input of the op-amp close to zero volts if the op-amp charges a second RC circuit so that the voltage drop across its capacitor exceeds a pre-determined limit-reference, and also, once the current limiting means brings the MOSFET to the OFF state, the current limiting means allows the soft-start switch to begin a soft-start power-up after a pre-determined time dependent upon the time constant of the second RC circuit.

公开(公告)号：US20100019697A1

公开(公告)日：2010-01-28

申请号：US12178302

申请日：2008-07-23

Applicant: Roman Korsunsky ,  Mark S. Pieper

Inventor： Roman Korsunsky ,  Mark S. Pieper

IPC: H05B37/02

CPC classification number: H05B33/0818 ,  H05B33/0851 ,  Y02B20/347

Abstract: One embodiment of the present invention includes a current regulator circuit. The circuit includes at least one switch configured to periodically couple and decouple a respective at least one voltage rail to an inductor to maintain a current through the inductor. The circuit also includes a pulse-width modulation (PWM) controller configured to set a duty-cycle associated with a switching signal to control the at least one switch based on a feedback signal that is associated with a magnitude of the current. The circuit also includes a switch-controlled current path configured to shunt the current from a load in response to a control signal. The circuit further includes an error circuit configured to provide an error term to the PWM controller upon activating the control signal to adjust the duty-cycle substantially instantaneously in response to the control signal.

Abstract translation: 本发明的一个实施例包括电流调节器电路。 电路包括至少一个开关，其被配置为周期性地将相应的至少一个电压轨耦合到电感器以保持电流通过电感器。 电路还包括脉冲宽度调制（PWM）控制器，其被配置为基于与电流的大小相关联的反馈信号来设置与开关信号相关联的占空比以控制至少一个开关。 电路还包括开关控制的电流路径，其被配置为响应于控制信号从负载分流电流。 电路还包括错误电路，该错误电路被配置为在激活控制信号时向PWM控制器提供误差项，以响应于控制信号基本上瞬时地调整占空比。

公开(公告)号：US08154222B2

公开(公告)日：2012-04-10

申请号：US12178302

申请日：2008-07-23

Applicant: Roman Korsunsky ,  Mark S. Pieper

Inventor： Roman Korsunsky ,  Mark S. Pieper

IPC: H05B37/02 ,  H05B41/36

CPC classification number: H05B33/0818 ,  H05B33/0851 ,  Y02B20/347

Abstract: One embodiment of the present invention includes a current regulator circuit. The circuit includes at least one switch configured to periodically couple and decouple a respective at least one voltage rail to an inductor to maintain a current through the inductor. The circuit also includes a pulse-width modulation (PWM) controller configured to set a duty-cycle associated with a switching signal to control the at least one switch based on a feedback signal that is associated with a magnitude of the current. The circuit also includes a switch-controlled current path configured to shunt the current from a load in response to a control signal. The circuit further includes an error circuit configured to provide an error term to the PWM controller upon activating the control signal to adjust the duty-cycle substantially instantaneously in response to the control signal.

Abstract translation: 本发明的一个实施例包括电流调节器电路。 电路包括至少一个开关，其被配置为周期性地将相应的至少一个电压轨耦合到电感器以保持电流通过电感器。 电路还包括脉冲宽度调制（PWM）控制器，其被配置为基于与电流的大小相关联的反馈信号来设置与开关信号相关联的占空比以控制至少一个开关。 电路还包括开关控制的电流路径，其被配置为响应于控制信号从负载分流电流。 电路还包括错误电路，该错误电路被配置为在激活控制信号时向PWM控制器提供误差项，以响应于控制信号基本上瞬时地调整占空比。

公开(公告)号：US5698973A

公开(公告)日：1997-12-16

申请号：US690540

申请日：1996-07-31

Applicant: Ulrich B. Goerke ,  Mark S. Pieper

Inventor： Ulrich B. Goerke ,  Mark S. Pieper

IPC: H03K17/16 ,  G05F1/40 ,  G05F1/46 ,  G05F1/575 ,  H03K17/687 ,  G05F1/10

CPC classification number: G05F1/575 ,  G05F1/468 ,  Y10S323/901

Abstract: A MOSFET, an op-amp, a comparator circuit, and voltage dividers with capacitors are employed in combination to effectuate a soft-start switch with current limiting. The transconductance of the MOSFET is employed so that no sense resistor is required. The MOSFET and op-amp are configured as a closed-loop feedback circuit in which the output of the op-amp is coupled to the gate of the MOSFET and the inverting input of the op-amp is coupled to the output of the soft-start switch via a voltage divider. A first RC circuit provides a voltage to the non-inverting input of the op-amp which can be triggered to gradually me from a value close to zero to some reference voltage so as to soft-start a load. Current limiting means are effectuated by a comparator circuit and voltage dividers with capacitors. The current limiting means brings the MOSFET to an OFF state and the non-inverting input of the op-amp close to zero volts if the op-amp charges a second RC circuit so that the voltage drop across its capacitor exceeds a pre-determined limit-reference, and also, once the current limiting means brings the MOSFET to the OFF state, the current limiting means allows the soft-start switch to begin a soft-start power-up after a pre-determined time dependent upon the time constant of the second RC circuit.

Abstract translation: 组合使用MOSFET，运算放大器，比较器电路和带电容器的分压器，以实现具有限流功能的软启动开关。 采用MOSFET的跨导，因此不需要检测电阻。 MOSFET和运算放大器被配置为闭环反馈电路，其中运算放大器的输出耦合到MOSFET的栅极，并且运算放大器的反相输入端耦合到软 - 通过分压器启动开关。 第一个RC电路向运算放大器的非反相输入端提供一个电压，该电压可以从接近零的值逐渐触发到某个参考电压，从而软启动负载。 电流限制装置由具有电容器的比较器电路和分压器实现。 如果运算放大器对第二个RC电路充电，电流限制装置使MOSFET处于OFF状态，并且运算放大器的非反相输入接近零伏特，使得其电容上的电压降超过预定极限 而且，一旦电流限制装置使MOSFET处于截止状态，电流限制装置允许软启动开关在取决于时间常数的预定时间之后开始软启动上电 第二个RC电路。