公开(公告)号：US20070126473A1

公开(公告)日：2007-06-07

申请号：US11237287

申请日：2005-09-27

申请人： Thruston Awalt ,  Peter Chambers

发明人： Thruston Awalt ,  Peter Chambers

IPC分类号： H03K19/003

CPC分类号： H03K19/1732

摘要： A circuit in an integrated circuit having an input terminal to be coupled to a resistor network for selecting one of multiple digital states in the integrated circuit includes a voltage decode circuit, a control circuit and a power-up control circuit. The first input terminal receives an input voltage having a voltage value associated with the multiple digital states. The voltage decode circuit receives the input voltage and generates a voltage decode signal indicative of the voltage value of the input voltage. The control circuit receives the voltage decode signal and generates an output control signal accordingly where the output control signal selects one of the multiple digital states. The power-up control circuit provides power to the resistor network, the voltage decode circuit and the control circuit for determining the selected digital state and disconnects power to those circuits after the selected digital state is determined.

摘要翻译： 具有要耦合到电阻网络的输入端子用于选择集成电路中的多个数字状态之一的集成电路中的电路包括电压解码电路，控制电路和上电控制电路。 第一输入端子接收具有与多个数字状态相关联的电压值的输入电压。 电压解码电路接收输入电压并产生指示输入电压的电压值的电压解码信号。 控制电路接收电压解码信号并相应地产生输出控制信号，其中输出控制信号选择多个数字状态之一。 上电控制电路为电阻网络，电压解码电路和控制电路提供电力，用于确定所选择的数字状态，并在确定所选择的数字状态之后断开对那些电路的电力。

公开(公告)号：US07245148B2

公开(公告)日：2007-07-17

申请号：US11237287

申请日：2005-09-27

申请人： Thruston Awalt ,  Peter Chambers

发明人： Thruston Awalt ,  Peter Chambers

IPC分类号： G06F7/38

CPC分类号： H03K19/1732

摘要： A circuit in an integrated circuit having an input terminal to be coupled to a resistor network for selecting one of multiple digital states in the integrated circuit includes a voltage decode circuit, a control circuit and a power-up control circuit. The first input terminal receives an input voltage having a voltage value associated with the multiple digital states. The voltage decode circuit receives the input voltage and generates a voltage decode signal indicative of the voltage value of the input voltage. The control circuit receives the voltage decode signal and generates an output control signal accordingly where the output control signal selects one of the multiple digital states. The power-up control circuit provides power to the resistor network, the voltage decode circuit and the control circuit for determining the selected digital state and disconnects power to those circuits after the selected digital state is determined.

摘要翻译： 具有要耦合到电阻网络的输入端子用于选择集成电路中的多个数字状态之一的集成电路中的电路包括电压解码电路，控制电路和上电控制电路。 第一输入端子接收具有与多个数字状态相关联的电压值的输入电压。 电压解码电路接收输入电压并产生指示输入电压的电压值的电压解码信号。 控制电路接收电压解码信号并相应地产生输出控制信号，其中输出控制信号选择多个数字状态之一。 上电控制电路为电阻网络，电压解码电路和控制电路提供电力，用于确定所选择的数字状态，并在确定所选择的数字状态之后断开对那些电路的电力。

公开(公告)号：US20090085490A1

公开(公告)日：2009-04-02

申请号：US11865695

申请日：2007-10-01

申请人： Thruston Awalt ,  Hardik Dineshchandra Patel

发明人： Thruston Awalt ,  Hardik Dineshchandra Patel

IPC分类号： H05B41/14

CPC分类号： H05B33/0851 ,  H05B33/0815 ,  H05B33/083

摘要： A LED driver circuit avoids undesirable light generated by a LED due to leakage current by shunting the output terminal to the feedback terminal during periods when it is desired that the LED remain turned off. The shunting operation is achieved by providing a switch (e.g., a FET) that is connected between the output and feedback terminals of the LED, and is controlled by the user supplied reference signal. During active operation (i.e., when the user supplied reference signal is “enabled” and the LED is lit), the switch remains open, allowing the driver circuit to generate the desired driving voltage across the LED. During inactive periods (i.e., when the user supplied reference signal is “disabled” and the LED is intended to be off), the switch is closed, which couples the output and feedback terminals to generate an essentially zero voltage drop across the LED.

摘要翻译： 在期望LED保持关闭的时段期间，LED驱动器电路避免了由于泄漏电流而由LED产生的不期望的光，其通过将输出端分流到反馈端。 分流操作通过提供连接在LED的输出端和反馈端之间并由用户提供的参考信号控制的开关（例如，FET）来实现。 在有效操作期间（即，当用户提供的参考信号被“使能”并且LED被点亮时），开关保持断开，允许驱动电路在LED两端产生期望的驱动电压。 在非活动期间（即，当用户提供的参考信号被禁用并且LED旨在关闭时），开关闭合，其耦合输出和反馈端子以在LED两端产生基本为零的电压降。

公开(公告)号：US20060034030A1

公开(公告)日：2006-02-16

申请号：US10915276

申请日：2004-08-10

申请人： David Andersen ,  Thruston Awalt

发明人： David Andersen ,  Thruston Awalt

IPC分类号： H02H9/06

CPC分类号： H02H9/025 ,  H02H1/04 ,  H02H7/0816 ,  H03K2017/6875

摘要： A surge current delay time period is added to a current limit delay time period in order to permit a longer time for a possibly temporary larger-than-steady-state electrical current, such as for a start-up power requirement. A system is described for permitting a legitimate surge current by distinguishing true over-current fault conditions from temporary surges in terms of high current duration time.

摘要翻译： 浪涌电流延迟时间周期被添加到电流限制延迟时间段，以便允许更长的时间用于可能的临时大于稳态的电流，例如用于启动功率需求。 描述了一种系统，用于通过在高电流持续时间方面区分真实的过电流故障条件与临时浪涌来允许合法的浪涌电流。

公开(公告)号：US07622871B2

公开(公告)日：2009-11-24

申请号：US11865695

申请日：2007-10-01

申请人： Thruston Awalt ,  Hardik Dineshchandra Patel

发明人： Thruston Awalt ,  Hardik Dineshchandra Patel

IPC分类号： H05B37/02

CPC分类号： H05B33/0851 ,  H05B33/0815 ,  H05B33/083

摘要： A LED driver circuit avoids undesirable light generated by a LED due to leakage current by shunting the output terminal to the feedback terminal during periods when it is desired that the LED remain turned off. The shunting operation is achieved by providing a switch (e.g., a FET) that is connected between the output and feedback terminals of the LED, and is controlled by the user supplied reference signal. During active operation (i.e., when the user supplied reference signal is “enabled” and the LED is lit), the switch remains open, allowing the driver circuit to generate the desired driving voltage across the LED. During inactive periods (i.e., when the user supplied reference signal is “disabled” and the LED is intended to be off), the switch is closed, which couples the output and feedback terminals to generate an essentially zero voltage drop across the LED.

摘要翻译： 在期望LED保持关闭的时段期间，LED驱动器电路避免了由于泄漏电流而由LED产生的不期望的光，其通过将输出端分流到反馈端。 分流操作通过提供连接在LED的输出端和反馈端之间并由用户提供的参考信号控制的开关（例如，FET）来实现。 在有效操作期间（即，当用户提供的参考信号被“使能”并且LED被点亮时），开关保持断开，允许驱动电路在LED两端产生期望的驱动电压。 在非活动期间（即，当用户提供的参考信号被禁用并且LED旨在关闭时），开关闭合，其耦合输出和反馈端子以在LED两端产生基本为零的电压降。

公开(公告)号：US07439945B1

公开(公告)日：2008-10-21

申请号：US11865702

申请日：2007-10-01

申请人： Thruston Awalt ,  Qi Deng

发明人： Thruston Awalt ,  Qi Deng

IPC分类号： G09G3/32 ,  H05B41/16 ,  H05B41/36

CPC分类号： H05B33/0818 ,  H05B33/0851 ,  Y02B20/347

摘要： A Light-Emitting Diode (LED) driver circuit is disclosed that controls the brightness of light generated by a LED that is coupled between a first terminal and a second terminal in response to a user supplied brightness control signal. A constant current source generates a constant current that is supplied to the LED and to a shunt circuit, which his connected in parallel with the LED. A brightness control circuit generates a pulse signal having a duty cycle that is proportional to the brightness control signal, and controls the shunt circuit such that, when said pulse signal is high, the constant current is passed through the shunt circuit and the LED is turned off, and when the pulse signal is low, the constant current is passed through the LED. The duty cycle of the brightness control signal is adjusted to adjust the LED's brightness, while the LED color remains constant.

摘要翻译： 公开了一种发光二极管（LED）驱动器电路，其响应于用户提供的亮度控制信号来控制由耦合在第一端子和第二端子之间的LED产生的光的亮度。 恒定电流源产生一个恒定电流，该恒定电流被提供给LED和与LED并联连接的分流电路。 亮度控制电路产生具有与亮度控制信号成比例的占空比的脉冲信号，并且控制分流电路，使得当所述脉冲信号为高时，恒定电流通过分流电路并且LED被转动 关闭，当脉冲信号为低电平时，恒流通过LED。 亮度控制信号的占空比被调节以调节LED的亮度，而LED颜色保持恒定。

公开(公告)号：US07170732B2

公开(公告)日：2007-01-30

申请号：US10915276

申请日：2004-08-10

申请人： David Andersen ,  Thruston Awalt

发明人： David Andersen ,  Thruston Awalt

IPC分类号： H02H3/00

CPC分类号： H02H9/025 ,  H02H1/04 ,  H02H7/0816 ,  H03K2017/6875

摘要： A surge current delay time period is added to a current limit delay time period in order to permit a longer time for a possibly temporary larger-than-steady-state electrical current, such as for a start-up power requirement. A system is described for permitting a legitimate surge current by distinguishing true over-current fault conditions from temporary surges in terms of high current duration time.

摘要翻译： 浪涌电流延迟时间周期被添加到电流限制延迟时间段，以便允许更长的时间用于可能的临时大于稳态的电流，例如用于启动功率需求。 描述了一种系统，用于通过在高电流持续时间方面区分真实的过电流故障条件与临时浪涌来允许合法的浪涌电流。