公开(公告)号：US20060193729A1

公开(公告)日：2006-08-31

申请号：US11395004

申请日：2006-03-31

Applicant: Eileen Marando ,  Robert Schoepflin

Inventor： Eileen Marando ,  Robert Schoepflin

IPC: F04B49/06

CPC classification number: H05K7/20209

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20050186083A1

公开(公告)日：2005-08-25

申请号：US10784837

申请日：2004-02-23

Applicant: Eileen Marando ,  Robert Schoepflin

Inventor： Eileen Marando ,  Robert Schoepflin

IPC: F04B49/10 ,  F04D27/00

CPC classification number: F04D27/00

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20050156544A1

公开(公告)日：2005-07-21

申请号：US10759796

申请日：2004-01-16

Applicant: Eileen Marando ,  Robert Schoepflin

Inventor： Eileen Marando ,  Robert Schoepflin

IPC: G06F1/20 ,  G05D23/19 ,  H02P5/00

CPC classification number: G05D23/1919

Abstract: 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.

Abstract translation: 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，另外的因子来确定。 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。