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    1-WIRE COMMUNICATION PROTOCOL AND INTERFACE CIRCUIT
    1.
    发明申请
    1-WIRE COMMUNICATION PROTOCOL AND INTERFACE CIRCUIT 有权
    1线通信协议和接口电路

    公开(公告)号：US20100277104A1

    公开(公告)日：2010-11-04

    申请号：US12696987

    申请日：2010-01-29

    申请人： Allan Ming-Lun Lin ,  Leonid A. Neyman

    发明人： Allan Ming-Lun Lin ,  Leonid A. Neyman

    IPC分类号： H05B37/02 ,  H03K7/08

    CPC分类号： H05B33/0818 ,  H03K7/08 ,  H05B37/0254

    摘要： A 1-wire communication protocol and interface circuitry for communication between a host controller and a LED driver is provided. The 1-wire communication protocol is configured such that both PWM signals and DC current setting commands for programming the LED driver may be transmitted from the host controller to the LED driver via the same 1-wire interface. The 1-wire communication protocol uses the length of the pulses (pulse width), rather than the number of pulses, to distinguish between different modes of communication (PWM signal transmission mode or command pulse transmission mode) and different commands of the same type (specific DC current programming commands, or specific average PWM drive current for the LED, within each transmission mode). Because the same 1-wire interface is used for transmitting both PWM signals and DC current commands, integrated circuits for the host controller and the LED driver do not require an additional wire or pin.

    摘要翻译： 提供了用于主机控制器和LED驱动器之间的通信的1线通信协议和接口电路。 1线通信协议被配置为使得用于编程LED驱动器的PWM信号和DC电流设置命令可以经由相同的1线接口从主机控制器传输到LED驱动器。 1线通信协议使用脉冲的长度（脉冲宽度）而不是脉冲数来区分不同的通信模式（PWM信号传输模式或命令脉冲传输模式）和不同类型的命令（ 特定的直流电流编程命令，或LED的特定平均PWM驱动电流，在每个传输模式下）。 由于同一个1线接口用于传输PWM信号和直流电流指令，所以主机控制器和LED驱动器的集成电路不需要额外的电线或引脚。

    High-resolution, high-precision solid-state potentiometer
    2.
    发明授权
    High-resolution, high-precision solid-state potentiometer 失效
    高分辨率，高精度固态电位器

    公开(公告)号：US06331768B1

    公开(公告)日：2001-12-18

    申请号：US09593734

    申请日：2000-06-13

    申请人： Joseph Drori ,  Allan Ming-Lun Lin

    发明人： Joseph Drori ,  Allan Ming-Lun Lin

    IPC分类号： H03H100

    CPC分类号： H03H7/24

    摘要： Disclosed are solid-state potentiometers having high resolution and high accuracy. An exemplary potentiometer has a first main terminal, a second main terminal, a wiper terminal, and a resistor stack having a plurality M of resistors coupled in series to one another at a plurality of M−1 internal nodes. Each of the resistors in the stack has substantially the same value of RS ohms. The potentiometer further has a first variable resistance network coupled between one end of the resistor stack and the potentiometer's first main terminal, and a second variable resistance network coupled between the other end of the resistor stack and the potentiometer's second main terminal. The first variable resistance network has a variable resistance value R1 which varies between zero ohms and RP ohms. The second variable resistance network has a variable resistance value R2 which is maintained substantially at value of (RP−R1). The wiper terminal is selectively coupled to one of the internal nodes of the resistor stack, or to one of the ends of the resistor stack, to provide a coarse setting of the potentiometer's wiper position. The resistances of the variable resistance networks are changed to provide the fine resolution for the potentiometer's wiper position. The present invention provides a large number of discrete wiper positions with a constant end-to-end resistance, while using a small number of resistors and transistors relative to prior art implementations.

    摘要翻译： 公开了具有高分辨率和高精度的固态电位计。 示例性电位器具有第一主端子，第二主端子，擦拭器端子和电阻器堆叠，其具有在多个M-1内部节点处彼此串联耦合的多个M个电阻器。 堆叠中的每个电阻器具有基本上相同的RS欧姆值。 电位计还具有耦合在电阻器堆叠的一端和电位器的第一主端子之间的第一可变电阻网络，以及耦合在电阻器堆叠的另一端和电位器的第二主端子之间的第二可变电阻网络。 第一可变电阻网络具有在零欧姆和RP欧姆之间变化的可变电阻值R1。 第二可变电阻网络具有基本上保持（RP-R1）的值的可变电阻值R2。 刮水器端子选择性地耦合到电阻器堆叠的一个内部节点，或者耦合到电阻器堆叠的一个端部，以提供电位器的抽头位置的粗略设置。 改变可变电阻网络的电阻，为电位器的抽头位置提供精细的分辨率。 本发明提供了大量具有恒定端对端电阻的离散抽头位置，同时相对于现有技术实现使用少量电阻器和晶体管。

    High-resolution, high-precision solid-state potentiometer
    3.
    发明授权
    High-resolution, high-precision solid-state potentiometer 失效

    公开(公告)号：US06555996B2

    公开(公告)日：2003-04-29

    申请号：US10007602

    申请日：2001-11-13

    申请人： Joseph Drori ,  Allan Ming-Lun Lin

    发明人： Joseph Drori ,  Allan Ming-Lun Lin

    IPC分类号： H03H100

    CPC分类号： H03H7/24

    摘要： Disclosed are solid-state potentiometers having high resolution and high accuracy. An exemplary potentiometer comprises a first main terminal, a second main terminal, a wiper terminal, and a resistor stack comprising a plurality M of resistors coupled in series to one another at a plurality of M−1 internal nodes. Each of the resistors in the stack has substantially the same value of RS ohms. The potentiometer further comprises a first variable resistance network coupled between one end of the resistor stack and the potentiometer's first main terminal, and a second variable resistance network coupled between the other end of the resistor stack and the potentiometer's second main terminal. The first variable resistance network has a variable resistance value R1 which varies between zero ohms and RP ohms. The second variable resistance network has a variable resistance value R2 which is maintained substantially at value of (RP−R1). The wiper terminal is selectively coupled to one of the internal nodes of the resistor stack, or to one of the ends of the resistor stack, to provide a coarse setting of the potentiometer's wiper position. The resistances of the variable resistance networks are changed to provide the fine resolution for the potentiometer's wiper position. The present invention provides a large number of discrete wiper positions with a constant end-to-end resistance, while using a small number of resistors and transistors relative to prior art implementations. A further advantage of the invention is that the potentiometer may be constructed with a small number of selection transistors turned on within the current path between the potentiometer's main terminals, thereby providing higher accuracy.

    1-wire communication protocol and interface circuit
    4.
    发明授权
    1-wire communication protocol and interface circuit 有权
    1线通信协议和接口电路

    公开(公告)号：US08324824B2

    公开(公告)日：2012-12-04

    申请号：US12696987

    申请日：2010-01-29

    申请人： Allan Ming-Lun Lin ,  Leonid A. Neyman

    发明人： Allan Ming-Lun Lin ,  Leonid A. Neyman

    IPC分类号： H05B41/16

    CPC分类号： H05B33/0818 ,  H03K7/08 ,  H05B37/0254

    摘要： A 1-wire communication protocol and interface circuitry for communication between a host controller and a LED driver is provided. The 1-wire communication protocol is configured such that both PWM signals and DC current setting commands for programming the LED driver may be transmitted from the host controller to the LED driver via the same 1-wire interface. The 1-wire communication protocol uses the length of the pulses (pulse width), rather than the number of pulses, to distinguish between different modes of communication (PWM signal transmission mode or command pulse transmission mode) and different commands of the same type (specific DC current programming commands, or specific average PWM drive current for the LED, within each transmission mode). Because the same 1-wire interface is used for transmitting both PWM signals and DC current commands, integrated circuits for the host controller and the LED driver do not require an additional wire or pin.

    摘要翻译： 提供了用于主机控制器和LED驱动器之间的通信的1线通信协议和接口电路。 1线通信协议被配置为使得用于编程LED驱动器的PWM信号和DC电流设置命令可以经由相同的1线接口从主机控制器传输到LED驱动器。 1线通信协议使用脉冲的长度（脉冲宽度）而不是脉冲数来区分不同的通信模式（PWM信号传输模式或命令脉冲传输模式）和不同类型的命令（ 特定的直流电流编程命令，或LED的特定平均PWM驱动电流，在每个传输模式下）。 由于同一个1线接口用于传输PWM信号和直流电流指令，所以主机控制器和LED驱动器的集成电路不需要额外的电线或引脚。

    Power converter controller IC having input voltage pin with multiple functions
    5.
    发明授权
    Power converter controller IC having input voltage pin with multiple functions 有权
    电源转换器控制器IC具有多种功能的输入电压引脚

    公开(公告)号：US07880447B1

    公开(公告)日：2011-02-01

    申请号：US11558143

    申请日：2006-11-09

    申请人： Allan Ming-Lun Lin ,  Junjie Zheng ,  Jiang Chen

    发明人： Allan Ming-Lun Lin ,  Junjie Zheng ,  Jiang Chen

    IPC分类号： H02J7/00

    CPC分类号： H02M3/33515

    摘要： A controller integrated circuit (IC) for controlling a power converter uses its input voltage pin with a plurality of functions, including receiving an input voltage to the power converter, charging an external startup capacitor through charging circuitry coupled internally to the input voltage pin, and also receiving a test signal for programming a programmable resistance in an input voltage scale down circuitry coupled to the input voltage pin. Use of the input voltage pin with a plurality of functions reduces the number of pins required in the controller IC, thereby reducing the cost of manufacturing the controller IC.

    摘要翻译： 用于控制功率转换器的控制器集成电路（IC）使用其具有多个功能的输入电压引脚，包括接收到功率转换器的输入电压，通过内部耦合到输入电压引脚的充电电路对外部启动电容器进行充电;以及 还接收用于对耦合到输入电压引脚的输入电压降压电路中的可编程电阻进行编程的测试信号。 使用具有多个功能的输入电压引脚减少了控制器IC中所需的引脚数量，从而降低了制造控制器IC的成本。

    Power converter controller controlled by variable reference voltage generated by dual output digital to analog converter
    8.
    发明授权
    Power converter controller controlled by variable reference voltage generated by dual output digital to analog converter 有权
    电源转换器控制器由双输出数模转换器产生的可变参考电压控制

    公开(公告)号：US07589983B1

    公开(公告)日：2009-09-15

    申请号：US11557953

    申请日：2006-11-08

    申请人： Allan Ming-Lun Lin ,  Mark Dean Eason ,  Mark Robert Muegge

    发明人： Allan Ming-Lun Lin ,  Mark Dean Eason ,  Mark Robert Muegge

    IPC分类号： H02M3/335 ,  H03H1/00

    CPC分类号： H02M3/33515

    摘要： A power converter includes a switch controller having a dual output digital-to-analog converter for generating a variable reference voltage and a knee voltage offset from the reference voltage by a predetermined voltage. The variable reference voltage is generated based on a reconstructed representation of output voltage of the power converter in a previous switching cycle. Comparators compare the variable reference voltage and the variable knee voltage to a sensed output of the power converter in a first switching cycle. A digital logic of the switch controller receives signals from the comparators and determines a pulse signal for controlling an on-time and an off time of a switch in a second switching cycle.

    摘要翻译： 电力转换器包括具有双输出数/模转换器的开关控制器，用于从参考电压产生可变参考电压和拐点电压偏移预定电压。 可变参考电压是基于在先前的切换周期中的功率转换器的输出电压的重构表示而产生的。 比较器在第一开关周期中将可变参考电压和可变拐点电压与功率转换器的检测输出进行比较。 开关控制器的数字逻辑从比较器接收信号，并确定用于在第二开关周期中控制开关的导通时间和关断时间的脉冲信号。

    Method and circuit for controlling power amplifiers
    9.
    发明授权
    Method and circuit for controlling power amplifiers 失效

    公开(公告)号：US06657499B2

    公开(公告)日：2003-12-02

    申请号：US10054703

    申请日：2002-01-18

    申请人： Allan Ming-Lun Lin

    发明人： Allan Ming-Lun Lin

    IPC分类号： H03F304

    CPC分类号： H03F1/301 ,  H03F2200/261 ,  H03F2200/462 ,  H03F2200/481

    摘要： A bias controller includes a bias detector, a reference comparator, a memory component, and a reference voltage. The bias detector is operable to detect a bias current associated with a device controlled by the bias controller and produce a proportional sensed bias voltage. The reference comparator is operable to compare the bias voltage to a reference voltage and produce a first control signal operable to adjust a bias output of the bias controller. The memory component stores a plurality of reference voltage settings, one for each mode of operation of the device, the memory component including a mode setting input and a reference voltage output signal. The reference voltage adjustment circuit adjusts the reference voltage applied to the reference comparator in accordance with the mode of the device as controlled by the reference voltage output signal.