公开(公告)号：US07140767B2

公开(公告)日：2006-11-28

申请号：US10979437

申请日：2004-11-02

Applicant: Scott C. McLeod ,  Thomas R. Anderson ,  Steven Burstein ,  Leonid A. Bekker

Inventor： Scott C. McLeod ,  Thomas R. Anderson ,  Steven Burstein ,  Leonid A. Bekker

IPC: G01K19/00 ,  G01K7/00

CPC classification number: G01K1/028 ,  G01K7/01

Abstract: A temperature sensor circuit and system providing accurate readings using a temperature diode whose ideality factor may fall within a determined range. In one set of embodiments a change in diode junction voltage (ΔVBE) proportional to the temperature of the diode is captured and provided to an ADC, which may perform required signal conditioning functions on ΔVBE, and provide a numeric value output corresponding to the temperature of the diode. Errors in the measured temperature that might result from using diodes with ideality factors that differ from an expected ideality factor may be eliminated by programming the system to account for differing ideality factors. The gain of the temperature sensor may be matched to the ideality factor of the temperature diode by using an accurate, highly temperature stable reference voltage of the ADC to set the gain of the temperature measurement system. The reference voltage may have a trim capability to change the gain setting voltage by a digital address comprising a determined number of bits, with the programmable range for the reference voltage corresponding to a determined range of ideality factors.

Abstract translation: 温度传感器电路和系统使用温度二极管提供精确的读数，其理想因素可能落在一个确定的范围内。 在一组实施例中，与二极管的温度成比例的二极管结电压（DeltaV BAT）的变化被捕获并提供给ADC，ADC可以在DeltaV BE上执行所需的信号调节功能 并且提供对应于二极管的温度的数值输出。 可能通过对系统进行编程以解决不同的理想因素，消除可能由使用具有理想因素而不同于预期理想因素的二极管产生的测量温度的误差。 通过使用ADC的精确，高度温度稳定的参考电压来设置温度测量系统的增益，温度传感器的增益可以与温度二极管的理想系数匹配。 参考电压可以具有修整能力，以通过包括确定数量的位的数字地址来改变增益设置电压，其中参考电压的可编程范围对应于所确定的理想因素范围。

公开(公告)号：US07075261B2

公开(公告)日：2006-07-11

申请号：US10119983

申请日：2002-04-10

Applicant: Steven Burstein

Inventor： Steven Burstein

IPC: G05B5/00 ,  G05D23/00

CPC classification number: H02P1/04 ,  F04D27/008 ,  Y10S388/911

Abstract: A method and apparatus for controlling a fan is disclosed. In one embodiment, a method for controlling a fan includes applying power to the fan at startup. The fan may be supplied a predetermined amount of current, which may break the inertia of the fan propeller and begin its rotation. As the propeller begins rotating, the speed at which it rotates may be monitored. The fan startup routine may continue until the fan reaches or exceeds a minimum fan speed threshold. Once the fan has at least reached the minimum speed, the amount of current supplied to the fan may be reduced such that the fan rotates at minimum speed, and an automatic fan control algorithm may begin executing. By reducing the current such that the fan operates at a minimum speed, the amount of audible noise generated by the fan during startup may be kept to a minimum level.

公开(公告)号：US5500610A

公开(公告)日：1996-03-19

申请号：US134571

申请日：1993-10-08

Applicant: Steven Burstein

Inventor： Steven Burstein

IPC: H03K17/00 ,  H03K17/082 ,  H03K17/16 ,  H03K19/003

CPC classification number: H03K17/167 ,  H03K17/0822 ,  H03K19/00361 ,  H03K2217/0036

Abstract: An output buffer circuit for supplying a current to an output pad of an integrated circuit comprises an output driver circuit and a feedback circuit. The output driver circuit includes a first current supply element for supplying a small current to the output pad in response to an input logic signal. The feedback circuit includes a second current supply element for supplying a large current to the output pad and a circuit for generating a feedback voltage to control the second current supply element. The feedback voltage is responsive to the input logic signal and inversely follows the output pad voltage when the output pad voltage crosses a threshold. The output buffer provides excellent short circuit protection.

Abstract translation: 用于向集成电路的输出焊盘提供电流的输出缓冲电路包括输出驱动电路和反馈电路。 输出驱动器电路包括用于响应于输入逻辑信号向输出焊盘提供小电流的第一电流源元件。 反馈电路包括用于向输出焊盘提供大电流的第二电流源元件和用于产生反馈电压以控制第二电流供应元件的电路。 当输出焊盘电压超过阈值时，反馈电压响应输入逻辑信号并反向跟随输出焊盘电压。 输出缓冲器提供出色的短路保护。