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    • 61. 发明申请
    • METHODS AND APPARATUS FOR SIMULATING RESISTIVE LOADS
    • 用于模拟电阻负载的方法和装置
    • US20080164826A1
    • 2008-07-10
    • US11836560
    • 2007-08-09
    • Ihor A. Lys
    • Ihor A. Lys
    • H05B41/16H05B41/36
    • H05B33/0815H05B33/0824
    • Methods and apparatus for simulating resistive loads, and facilitating series, parallel, and/or series-parallel connections of multiple loads to draw operating power. Current-to-voltage characteristics of loads are altered in a predetermined manner so as to facilitate a predictable and/or desirable behavior of multiple loads drawing power from a power source. Exemplary loads include LED-based light sources and LED-based lighting units. Altered current-to-voltage characteristics may cause a load to appear as a substantially linear or resistive element to the power source, at least over some operating range. In connections of multiple such loads, the voltage across each load is relatively more predictable. In one example, a series connection of multiple loads with altered current-to-voltage characteristics may be operated from a line voltage without requiring a transformer.
    • 用于模拟电阻负载的方法和装置,并且促进多个负载的串联,并联和/或串联并联连接以绘制操作功率。 负载的电流 - 电压特性以预定的方式改变,以便于从电源引出功率的多个负载的可预测和/或期望的行为。 示例性负载包括基于LED的光源和基于LED的照明单元。 改变的电流 - 电压特性可能导致负载至少在一些工作范围内作为基本线性或电阻元件出现在电源上。 在多个这样的负载的连接中,每个负载上的电压是相对更可预测的。 在一个示例中,具有改变的电流 - 电压特性的多个负载的串联连接可以从线路电压操作而不需要变压器。
    • 64. 发明申请
    • METHODS AND APPARATUS FOR CONTROLLING SERIES-CONNECTED LEDS
    • 用于控制串联LED的方法和装置
    • US20080122376A1
    • 2008-05-29
    • US11938051
    • 2007-11-09
    • Ihor A. Lys
    • Ihor A. Lys
    • H05B37/02
    • H05B33/0857H05B33/083
    • Methods and apparatus for controlling series-connected LEDs. Two or more LEDs are connected in series between a first node and a second node, wherein a series current flows between the nodes when an operating voltage is applied across the nodes. One or more controllable current paths are connected in parallel with at least a first LED for at least partially diverting the series current around at least the first LED. A controller monitors at least one parameter representative of the operating voltage, determines a maximum number of the series-connected LEDs that can be energized by the operating voltage, and controls the controllable current path(s) so as to increase an amount of the series current that is diverted around at least the first LED when the maximum number is less than a total number of all of the LEDs connected in series. In one example, the foregoing may be implemented as an integrated circuit package to provide a lighting apparatus suitable for automotive applications.
    • 用于控制串联LED的方法和装置。 两个或更多个LED串联连接在第一节点和第二节点之间,其中当在节点之间施加工作电压时,串联电流在节点之间流动。 一个或多个可控电流路径与至少第一LED并联连接,用于至少部分地使至少第一LED周围的串联电流转向。 控制器监视至少一个代表工作电压的参数,确定可由工作电压激励的串联LED的最大数量,并控制可控电流路径,以便增加系列的数量 当最大数量小于串联连接的所有LED的总数时,至少第一LED转向的电流。 在一个示例中,前述可以被实现为集成电路封装,以提供适合于汽车应用的照明装置。
    • 67. 发明授权
    • Methods and apparatus for controlling devices in a networked lighting system
    • 用于控制网络照明系统中设备的方法和装置
    • US07253566B2
    • 2007-08-07
    • US10842257
    • 2004-05-10
    • Ihor A. LysFrederick M. Morgan
    • Ihor A. LysFrederick M. Morgan
    • H05B37/02
    • H05B37/029F21S4/10F21V21/002F21V23/04F21Y2115/10H01R4/24H05B37/0254
    • Methods and apparatus for computer-based control of light sources in a networked lighting system. In one example, a plurality of LED-based lighting systems are arranged as computer controllable “light strings.” Applications contemplated for such light strings include, but are not limited to, decorative and entertainment-oriented lighting applications (e.g., Christmas tree lights, display lights, theme park lighting, video and other game arcade lighting, etc.). Via computer control, one or more such light strings may provide a variety of complex temporal and color-changing lighting effects. In one example, lighting data is communicated in a given light string in a serial manner, according to a variety of different data transmission and processing schemes. In another example, individual lighting systems of a light string are coupled together via a variety of different conduit configurations to provide for easy coupling and arrangement of multiple light sources constituting the light string. In yet another example, small LED-based lighting systems capable of being arranged in a light string configuration are manufactured as integrated circuits including data processing circuitry and control circuitry for LED light sources, and are packaged along with LEDs for convenient coupling to a conduit to connect multiple lighting systems.
    • 网络照明系统中光源计算机控制的方法和装置。 在一个示例中,多个基于LED的照明系统被布置为计算机可控的“灯串”。 考虑到这种灯串的应用包括但不限于装饰和娱乐导向的照明应用(例如,圣诞树灯,显示灯,主题公园照明,视频和其他游戏商场照明等)。 通过计算机控制,一个或多个这样的灯串可以提供各种复杂的时间和颜色变化的照明效果。 在一个示例中,根据各种不同的数据传输和处理方案,照明数据以串行方式在给定的光串中传送。 在另一个示例中,灯串的各个照明系统通过各种不同的导管结构耦合在一起,以提供构成光束的多个光源的容易的耦合和布置。 在另一个例子中,能够被布置成灯串配置的小型基于LED的照明系统被制造为包括用于LED光源的数据处理电路和控制电路的集成电路,并且与LED封装以方便地连接到导管 连接多个照明系统。
    • 70. 发明授权
    • Method for software driven generation of multiple simultaneous high speed pulse width modulated signals
    • 用于软件驱动生成多个同步高速脉宽调制信号的方法
    • US07113541B1
    • 2006-09-26
    • US09344699
    • 1999-06-25
    • Ihor A. LysFrederick M. Morgan
    • Ihor A. LysFrederick M. Morgan
    • H03K7/08
    • H05B33/0863H05B33/0818H05B33/086H05B37/029Y02B20/346
    • Systems and methods can provide, in one aspect, a method for modulating the pulse width of control signals generated on a plurality of separate channels. In one practice, the methods described herein are suitable for execution on a microprocessor or micro controller platform that includes a timer interrupt mechanism which will generate an interrupt in response to a timer counting down a selected time interval or time period. In one practice, the timer is set to count down a period of time that is representative of a portion, or sub period, of the PWM cycle. Upon expiration of that time period, the timer executes an interrupt that causes the micro controller to enter an interrupt service routine (ISR) that can further modulate the PWM cycle of one or more signals.
    • 在一个方面,系统和方法可以提供用于调制在多个单独通道上产生的控制信号的脉冲宽度的方法。 在一种实践中,本文描述的方法适合于在微处理器或微控制器平台上执行,该微处理器或微控制器平台包括定时器中断机制,该定时器中断机制将响应定时器在选定的时间间隔或时间段内倒计数而产生中断 在一个实践中,定时器被设置为对表示PWM周期的一部分或次周期的一段时间进行倒计数。 在该时间段到期时,定时器执行使微控制器进入可以进一步调制一个或多个信号的PWM周期的中断服务程序(ISR)的中断。