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1.发明授权Generating a PWM signal dependent on a duty cycle having a piecewise linear relationship with temperature 有权根据具有与温度分段线性关系的占空比产生PWM信号公开(公告)号：US08662858B2
公开(公告)日：2014-03-04
申请号：US11395004
申请日：2006-03-31
CPC分类号： H05K7/20209
摘要： A system may include a PWM generator and control logic. The PWM generator is configured to generate a PWM signal having a duty cycle dependent on a duty cycle value generated by the control logic. The control logic is configured to generate the duty cycle value to have a piecewise linear relationship with temperature such that at least two of a plurality of linear segments defined by the piecewise linear relationship have different slopes. In some embodiments, the piecewise linear relationship may be continuous.
摘要翻译： 系统可以包括PWM发生器和控制逻辑。 PWM发生器被配置为产生具有取决于由控制逻辑产生的占空比值的占空比的PWM信号。 控制逻辑被配置为产生与温度分段线性关系的占空比值，使得由分段线性关系限定的多个线性段中的至少两个具有不同的斜率。 在一些实施例中，分段线性关系可以是连续的。
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2.发明授权公开(公告)号：US07295897B2
公开(公告)日：2007-11-13
申请号：US10784837
申请日：2004-02-23
CPC分类号： F04D27/00
摘要： A fan control system in which a sensor selection block having a number of sensor inputs may be combined with an autofan block having a number of zone inputs, where the number of sensor inputs is greater than the number of zone inputs. Each one of the sensor inputs of the sensor selection block may have a corresponding sensor parameter input. The sensor selection block may be configured to map a subset of the sensor inputs with corresponding sensor parameter inputs to the autofan block. Each zone input and corresponding zone parameter input of the autofan block may receive a corresponding one of the subset of the sensor inputs with corresponding sensor parameter inputs, respectively. The autofan block may have a number of pulse width modulated (PWM) outputs that may be calculated according to the autofan block zone inputs and zone parameter inputs.
摘要翻译： 一种风扇控制系统，其中具有多个传感器输入的传感器选择块可以与具有多个区域输入的自动扇区组合，其中传感器输入的数量大于区域输入的数量。 传感器选择块的传感器输入中的每一个可以具有相应的传感器参数输入。 传感器选择块可以被配置为将传感器输入的子集与相应的传感器参数输入映射到自动模块。 自动扇区块的每个区域输入和相应的区域参数输入可以分别接收相应的传感器输入的传感器输入的子集中的对应的一个。 自动模块可以具有多个脉冲宽度调制（PWM）输出，可根据自动模块区域输入和区域参数输入进行计算。
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公开(公告)号：US07064511B2
公开(公告)日：2006-06-20
申请号：US10759796
申请日：2004-01-16
IPC分类号： G05B11/28
CPC分类号： G05D23/1919
摘要： A system and method for controlling a fan is disclosed. A single control signal value for controlling the fan, such as a single PWM duty cycle value for a corresponding PWM generator output powering the fan, may be calculated by combining sensor data from two or more temperature zones. In one embodiment, the single PWM duty cycle value may be determined based on the temperature in a first zone, for example the CPU, with an additional factor based on the temperature in a second zone, for example the ambient temperature of a PC enclosure. In one embodiment, the final single PWM value is determined by adding an offset value to a PWM value calculated based on the current temperature of the first zone, where the offset value is obtained by calculating a first ΔPWM factor for the first zone, and using the first ΔPWM factor, in conjunction with a scaling factor, to weight a second ΔPWM factor calculated for the second zone.
摘要翻译： 公开了一种用于控制风扇的系统和方法。 可以通过组合来自两个或多个温度区域的传感器数据来计算用于控制风扇的单个控制信号值，例如用于为风扇供电的相应PWM发生器输出的单个PWM占空比值。 在一个实施例中，单个PWM占空比值可以基于第一区域（例如CPU）中的温度，基于第二区域中的温度，例如PC外壳的环境温度，以附加因子来确定。 在一个实施例中，通过将偏移值与基于第一区域的当前温度计算的PWM值相加来确定最终单个PWM值，其中通过计算第一区域的第一DeltaPWM因子获得偏移值，并且使用 第一个DeltaPWM因子结合缩放因子来加权为第二个区域计算的第二个DeltaPWM因子。
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公开(公告)号：US07127564B2
公开(公告)日：2006-10-24
申请号：US10376838
申请日：2003-02-28
申请人： Robert W. Schoepflin , Richard E. Wahler , Ronald W. Streiber , John D. Virzi , Donald D. Noviello
发明人： Robert W. Schoepflin , Richard E. Wahler , Ronald W. Streiber , John D. Virzi , Donald D. Noviello
IPC分类号： G06F12/02
CPC分类号： G06F12/0607 , G06F12/0246
摘要： A double buffered flash bank. In one embodiment, a flash interface may be programmed by a register interface with a first set of data while a second set of data is being written to the register interface. In one embodiment, flash banks may be programmed in parallel using latched register interfaces. For example, while data from a first register interface is being written to the first flash bank and data from a second register interface is being written to a second flash bank, new data may be written to the first register interface and to the second register interface. The new data may then be written from the first register interface to the first flash bank and from the second register interface to the second flash bank.
摘要翻译： 双缓冲闪存库。 在一个实施例中，闪存接口可以由具有第一组数据的寄存器接口编程，而第二组数据正被写入寄存器接口。 在一个实施例中，闪存组可以使用锁存寄存器接口并行编程。 例如，当来自第一寄存器接口的数据正被写入第一闪存组并且来自第二寄存器接口的数据正被写入第二闪存组时，新数据可被写入到第一寄存器接口和第二寄存器接口 。 然后可以将新数据从第一寄存器接口写入第一闪存组，并从第二寄存器接口写入第二闪存组。
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5.发明授权公开(公告)号：US07029239B2
公开(公告)日：2006-04-18
申请号：US10440745
申请日：2003-05-19
IPC分类号： F04B49/20
CPC分类号： H05K7/20209
摘要： A system may include a PWM generator and control logic. The PWM generator is configured to generate a PWM signal having a duty cycle dependent on a duty cycle value generated by the control logic. The control logic is configured to generate the duty cycle value to have a piecewise linear relationship with temperature such that at least two of a plurality of linear segments defined by the piecewise linear relationship have different slopes. In some embodiments, the piecewise linear relationship may be continuous.
摘要翻译： 系统可以包括PWM发生器和控制逻辑。 PWM发生器被配置为产生具有取决于由控制逻辑产生的占空比值的占空比的PWM信号。 控制逻辑被配置为产生与温度分段线性关系的占空比值，使得由分段线性关系限定的多个线性段中的至少两个具有不同的斜率。 在一些实施例中，分段线性关系可以是连续的。
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公开(公告)号：US20110295442A1
公开(公告)日：2011-12-01
申请号：US12788590
申请日：2010-05-27
IPC分类号： G05D23/19
CPC分类号： G05D23/1917 , F04D27/004 , G06F1/206
摘要： System and method for controlling a fan. A value may be received for controlling the fan. The value may include a first number of bits and may correspond to a linear function of temperature. A first value may be determined using a first number of bits of the value. A modification to the first value may be determined based on a second number of bits of the value. A new output value may be generated based on the first value and the modification to the first value. The new output value may correspond to a first nonlinear function of temperature. The new output value may be provided for controlling the fan.
摘要翻译： 用于控制风扇的系统和方法 可以接收用于控制风扇的值。 该值可以包括第一位数，并且可以对应于温度的线性函数。 可以使用该值的第一数位来确定第一值。 可以基于值的第二数量位来确定对第一值的修改。 可以基于第一值和对第一个值的修改来生成新的输出值。 新的输出值可以对应于温度的第一非线性函数。 可以提供新的输出值用于控制风扇。
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公开(公告)号：US06919703B2
公开(公告)日：2005-07-19
申请号：US10459169
申请日：2003-06-11
CPC分类号： G01P3/481
摘要： A system may include a tachometer reading unit and a PWM (Pulse Width Modulated) signal generator configured to generate a PWM signal. The tachometer reading unit may be configured to obtain a tachometer reading from a tachometer signal generated by a device powered by the PWM signal. The tachometer reading unit includes a register configured to store a value indicative of a maximum stretching duration. The tachometer reading unit is configured to update the register in response to receiving a new value of the maximum stretching duration. The tachometer reading unit may be configured to control the PWM signal generator to stretch a pulse in the PWM signal and to not stretch the pulse longer than the maximum stretching duration indicated by the register. The tachometer reading unit is configured to obtain the tachometer reading during the stretched pulse in the PWM signal.
摘要翻译： 系统可以包括转速计读取单元和被配置为产生PWM信号的PWM（脉宽调制）信号发生器。 转速计读取单元可以被配置为从由PWM信号供电的装置产生的转速计信号获得转速计读数。 转速计读取单元包括配置为存储指示最大拉伸持续时间的值的寄存器。 转速计读取单元被配置为响应于接收到最大拉伸持续时间的新值而更新寄存器。 转速计读取单元可以被配置为控制PWM信号发生器在PWM信号中拉伸脉冲，并且不延伸比由寄存器指示的最大拉伸持续时间更长的脉冲。 转速计读数单元配置为在PWM信号中拉伸脉冲期间获得转速计读数。
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公开(公告)号：US08239074B2
公开(公告)日：2012-08-07
申请号：US12788590
申请日：2010-05-27
IPC分类号： G05D23/00
CPC分类号： G05D23/1917 , F04D27/004 , G06F1/206
摘要： System and method for controlling a fan. A value may be received for controlling the fan. The value may include a first number of bits and may correspond to a linear function of temperature. A first value may be determined using a first number of bits of the value. A modification to the first value may be determined based on a second number of bits of the value. A new output value may be generated based on the first value and the modification to the first value. The new output value may correspond to a first nonlinear function of temperature. The new output value may be provided for controlling the fan.
摘要翻译： 用于控制风扇的系统和方法 可以接收用于控制风扇的值。 该值可以包括第一位数，并且可以对应于温度的线性函数。 可以使用该值的第一数位来确定第一值。 可以基于值的第二数量位来确定对第一值的修改。 可以基于第一值和对第一个值的修改来生成新的输出值。 新的输出值可以对应于温度的第一非线性函数。 可以提供新的输出值用于控制风扇。
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公开(公告)号：US06933697B2
公开(公告)日：2005-08-23
申请号：US10440606
申请日：2003-05-19
CPC分类号： G05B11/28
摘要： A system may include control logic and a PWM generator configured to generate a PWM (Pulse Width Modulated) signal. The PWM generator is configured to generate the duty cycle of the PWM signal dependent on a duty cycle value generated by the control logic. The control logic stores an inverse focal point value and is configured to generate the duty cycle value by processing the inverse focal point value and a temperature value indicating a current temperature according to the equation of a parabola.
摘要翻译： 系统可以包括控制逻辑和配置成产生PWM（脉宽调制）信号的PWM发生器。 PWM发生器被配置为根据由控制逻辑产生的占空比值产生PWM信号的占空比。 控制逻辑存储逆焦点值，并且被配置为通过根据抛物线的方程式处理逆焦点值和指示当前温度的温度值来生成占空比值。
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