公开(公告)号：US20100007634A1

公开(公告)日：2010-01-14

申请号：US12192094

申请日：2008-08-14

申请人： KE-YOU HU

发明人： KE-YOU HU

IPC分类号： G09G5/00

CPC分类号： G09G5/006 ,  G09G2370/047

摘要： A DDC interface circuit includes a first NMOS transistor and a second NMOS transistor. The gates of the first and the second NMOS transistors are all connected to a 3.3V system power via a first resistor. The source of the first NMOS transistor is connected to a DDC_CLK pin of a north bridge. The drain of the first NMOS transistor is connected to a 5V system power via a second resistor, and also connected to an SCL pin of a VGA interface via a third resistor to receive an ACK signal. The source of the second NMOS transistor is connected to a DDC_DATA pin of the north bridge. The drain of the second NMOS transistor is connected to the 5V system power via a fourth resistor, and also connected to an SDA pin of the VGA interface via a fifth resistor.

摘要翻译： DDC接口电路包括第一NMOS晶体管和第二NMOS晶体管。 第一和第二NMOS晶体管的栅极都经由第一电阻器连接到3.3V系统电源。 第一个NMOS晶体管的源极连接到北桥的DDC_CLK引脚。 第一NMOS晶体管的漏极经由第二电阻器连接到5V系统电源，并且还经由第三电阻器连接到VGA接口的SCL引脚以接收ACK信号。 第二个NMOS晶体管的源极连接到北桥的DDC_DATA引脚。 第二NMOS晶体管的漏极经由第四电阻器连接到5V系统电源，并且还经由第五电阻器连接到VGA接口的SDA引脚。

公开(公告)号：US07594130B1

公开(公告)日：2009-09-22

申请号：US12211820

申请日：2008-09-17

申请人： Ke-You Hu

发明人： Ke-You Hu

IPC分类号： G06F1/26 ,  G06F1/30

CPC分类号： G06F1/26 ,  G06F1/3203

摘要： An exemplary circuit for regulating a timing sequence of a computer includes a PWM chip, a north bridge, a converting circuit, and a CPU. The PWM chip is connected to a power supply via a first resistor, and sends out a PWRGD_VRD signal and three-phase voltage signals. The north bridge outputs a PWRGD_CPU signal according to the PWRGD_VRD signal. The converting circuit transforms the three-phase voltage signals to a Vccp signal. The CPU sends out a VTT_PWRGD signal based on the PWRGD_CPU signal, and receives the Vccp signal. Wherein the logic level of the PWRGD_VRD signal is pulled up by the resistor, causing the timing sequence of the PWRGD_CPU signal to advance, the timing sequence of the VTT_PWRGD signal is also advanced according to the PWRGD_CPU signal, the timing sequence of the VTT_PWRGD signal is in advance of the timing sequence of the Vccp signal.

摘要翻译： 用于调节计算机的定时顺序的示例性电路包括PWM芯片，北桥，转换电路和CPU。 PWM芯片通过第一个电阻连接到电源，并发出PWRGD_VRD信号和三相电压信号。 北桥根据PWRGD_VRD信号输出PWRGD_CPU信号。 转换电路将三相电压信号变换为Vccp信号。 CPU根据PWRGD_CPU信号发出VTT_PWRGD信号，并接收Vccp信号。 其中PWRGD_VRD信号的逻辑电平由电阻上拉，导致PWRGD_CPU信号的定时序列前进，VTT_PWRGD信号的定时序列也按照PWRGD_CPU信号进行，VTT_PWRGD信号的定时序列为 在Vccp信号的定时序列之前。

公开(公告)号：US20070214371A1

公开(公告)日：2007-09-13

申请号：US11309429

申请日：2006-08-04

申请人： Yong-Xing You ,  Feng-Long He ,  Ke-You Hu ,  Hui Wang

发明人： Yong-Xing You ,  Feng-Long He ,  Ke-You Hu ,  Hui Wang

IPC分类号： G06F1/00

CPC分类号： G06F1/3203 ,  G06F1/3231 ,  Y02D10/173

摘要： A sleep/awake circuit includes an infrared receiving/sending module, a micro-control circuit, and a bus control circuit. The micro-control circuit sends a command signal to the infrared receiving/sending module at predetermined intervals. The infrared receiving/sending module detects the presence or absence of a user and then sends a signal back to the micro-control circuit indicating a result. According to the result, the micro-control circuit exchanges data and clock signals with the bus control circuit. The bus control circuit then sends control signals to the computer to control sleep/awake states of the computer.

摘要翻译： 睡眠/唤醒电路包括红外接收/发送模块，微控制电路和总线控制电路。 微控制电路以预定间隔向红外接收/发送模块发送命令信号。 红外接收/发送模块检测用户的存在或不存在，然后将指示结果的信号发回微控制电路。 根据结果​​，微控制电路与总线控制电路交换数据和时钟信号。 然后总线控制电路向计算机发送控制信号，以控制计算机的睡眠/唤醒状态。

公开(公告)号：US08635482B2

公开(公告)日：2014-01-21

申请号：US13169765

申请日：2011-06-27

申请人： Ke-You Hu

发明人： Ke-You Hu

IPC分类号： G06F1/00 ,  G06F1/26

CPC分类号： G06F1/26 ,  G06F13/4027

摘要： A motherboard includes an I/O chip, a south bridge chip, and a delay circuit. The I/O chip detects a standby voltage on the motherboard and outputs an indicating signal that indicates whether the standby voltage is at high level. The south bridge chip is connected to the I/O chip to receive the indicating signal. The delay circuit is connected to the I/O chip and the south bridge chip. The delay circuit delays the indicating signal before sending the indicating signal to the south bridge chip.

摘要翻译： 主板包括I / O芯片，南桥芯片和延迟电路。 I / O芯片检测主板上的待机电压，并输出指示等待电压是否处于高电平的指示信号。 南桥芯片连接到I / O芯片以接收指示信号。 延迟电路连接到I / O芯片和南桥芯片。 在将指示信号发送到南桥芯片之前，延迟电路延迟指示信号。

公开(公告)号：US08457326B2

公开(公告)日：2013-06-04

申请号：US12617962

申请日：2009-11-13

申请人： Ke-You Hu

发明人： Ke-You Hu

IPC分类号： H04B15/00

CPC分类号： H04R3/04 ,  H03F1/305 ,  H03F2200/03 ,  H03F2200/372 ,  H03G3/348

摘要： An output circuit for audio codec chip includes a noise eliminating circuit electrically coupled to the audio codec chip for eliminating noise signals. The noise eliminating circuit includes a first switch and a second switch. When the audio codec chip output signals jump from low voltage level to high voltage level, the noise signals are grounded via the first and second switches respectively.

摘要翻译： 用于音频编解码芯片的输出电路包括电耦合到音频编解码器芯片以消除噪声信号的噪声消除电路。 噪声消除电路包括第一开关和第二开关。 当音频编解码芯片的输出信号从低电压电平跳到高电平时，噪声信号分别通过第一和第二开关接地。

公开(公告)号：US08225113B2

公开(公告)日：2012-07-17

申请号：US12579250

申请日：2009-10-14

申请人： Ke-You Hu

发明人： Ke-You Hu

IPC分类号： G06F1/26

CPC分类号： G06F1/26

摘要： A computer system includes a north bridge chip, a power source, and a resistor-capacitor filter circuit coupled between the power source and the north bridge chip. The north bridge chip has a digital-to-analog converter analog power pin and a digital-to-analog converter analog ground pin. The power source is coupled to the digital-to-analog converter analog power pin of the north bridge chip. The resistor-capacitor filter includes a first resistor and a first capacitor. The first resistor is connected between the power source and the digital-to-analog converter analog power pin of the north bridge chip. One end of the first capacitor is connected to the digital-to-analog converter analog power pin of the north bridge chip, and another end of the first capacitor is connected to ground together with the digital-to-analog converter analog ground pin of the north bridge chip.

摘要翻译： 计算机系统包括耦合在电源和北桥芯片之间的北桥芯片，电源和电阻 - 电容滤波器电路。 北桥芯片具有数模转换器模拟电源引脚和数模转换器模拟接地引脚。 电源耦合到北桥芯片的数模转换器模拟电源引脚。 电阻电容滤波器包括第一电阻器和第一电容器。 第一个电阻连接在电源和北桥芯片的数/模转换器模拟电源引脚之间。 第一电容器的一端连接到北桥芯片的数模转换器模拟电源引脚，第一电容器的另一端与数/模转换器的模拟地引脚相连接 北桥芯片

公开(公告)号：US08222950B2

公开(公告)日：2012-07-17

申请号：US12612481

申请日：2009-11-04

申请人： Ke-You Hu

发明人： Ke-You Hu

IPC分类号： H01L35/00 ,  H03K17/14 ,  G01K7/00 ,  G05F1/10 ,  G06F1/32

CPC分类号： G06F1/206 ,  G06F1/26 ,  G06F1/32

摘要： A power supply circuit includes a PWM controller, which is capable of providing pulse signals to the CPU, a temperature feedback circuit coupled to the PWM controller, and a temperature sensor. The temperature sensor is coupled to the temperature feedback circuit, the temperature sensor is located adjacent the CPU, and capable of detects a temperature of the CPU. The PWM controller is capable of adjusting the pulse signals to maintain the pulse signals stably when the temperature sensor detects the temperature of the CPU rising.

摘要翻译： 电源电路包括能够向CPU提供脉冲信号的PWM控制器，耦合到PWM控制器的温度反馈电路和温度传感器。 温度传感器耦合到温度反馈电路，温度传感器位于CPU旁边，能够检测CPU的温度。 当温度传感器检测到CPU的温度上升时，PWM控制器能够调节脉冲信号以稳定维持脉冲信号。

公开(公告)号：US08212407B2

公开(公告)日：2012-07-03

申请号：US12578166

申请日：2009-10-13

申请人： Ke-You Hu

发明人： Ke-You Hu

IPC分类号： H02J1/00

CPC分类号： G06F1/26 ,  Y10T307/658

摘要： A power supply circuit includes a voltage regulating module; a voltage selecting circuit and a voltage regulating chip. The voltage regulating module outputs corresponding control signals according to a type of a CPU installed on a motherboard. The voltage selecting circuit receives the control signals and converts the corresponding control signal to a voltage selecting signal. The voltage regulating chip receives the voltage selecting signal and outputs the corresponding working voltage to the CPU.

摘要翻译： 电源电路包括电压调节模块; 电压选择电路和电压调节芯片。 电压调节模块根据安装在主板上的CPU类型输出相应的控制信号。 电压选择电路接收控制信号并将相应的控制信号转换成电压选择信号。 电压调节芯片接收电压选择信号，并向CPU输出相应的工作电压。

公开(公告)号：US08205104B2

公开(公告)日：2012-06-19

申请号：US12634575

申请日：2009-12-09

申请人： Ke-You Hu

发明人： Ke-You Hu

IPC分类号： G06F1/00 ,  H03K17/60 ,  H03K17/72

CPC分类号： G06F1/26

摘要： A power supply control circuit for a motherboard of a computer is provided. The power supply control circuit includes a south bridge chip and a voltage output control circuit connected to the south bridge chip. The south bridge chip includes a control pin and a detecting pin. The voltage output control circuit has a voltage input terminal and a voltage output terminal. The voltage output control circuit includes a transistor connected to the voltage input terminal and also connected to the voltage output terminal via a switch component. The voltage output terminal is connected to the detecting pin of the south bridge chip via a super I/O chip. The transistor is capable of controlling the switch component to transmit a high level voltage to the super I/O chip when the computer is shut down. A method is also provided.

摘要翻译： 提供了一种用于计算机主板的电源控制电路。 电源控制电路包括南桥芯片和连接到南桥芯片的电压输出控制电路。 南桥芯片包括控制引脚和检测引脚。 电压输出控制电路具有电压输入端子和电压输出端子。 电压输出控制电路包括连接到电压输入端子并经由开关部件连接到电压输出端子的晶体管。 电压输出端子通过超级I / O芯片连接到南桥芯片的检测引脚。 当计算机关闭时，晶体管能够控制开关部件向超级I / O芯片传输高电平电压。 还提供了一种方法。

公开(公告)号：US20120011292A1

公开(公告)日：2012-01-12

申请号：US12910663

申请日：2010-10-22

申请人： KE-YOU HU

发明人： KE-YOU HU

IPC分类号： G06F13/42 ,  G06F13/00

CPC分类号： G06F1/266

摘要： A power supply circuit for IEEE 1394 interface includes an IEEE 1394 interface control chip, an interface circuit, and a power circuit. The IEEE 1394 interface control chip outputs transmission protocol signals. The interface circuit is electrically connected to the IEEE 1394 interface control chip by a number of differential signal transmission lines. The interface circuit receives the transmission protocol signals and exchanges data with a peripheral device according to the received transmission protocol signals. The power circuit has a voltage decreasing circuit and provides working voltage to the interface circuit. The voltage decreasing circuit receives a DC voltage and converts the received DC voltage to the working voltage.

摘要翻译： 用于IEEE 1394接口的电源电路包括IEEE 1394接口控制芯片，接口电路和电源电路。 IEEE 1394接口控制芯片输出传输协议信号。 接口电路通过多个差分信号传输线电连接到IEEE 1394接口控制芯片。 接口电路接收传输协议信号，并根据接收的传输协议信号与外围设备交换数据。 电源电路具有降压电路，并向接口电路提供工作电压。 降压电路接收直流电压，并将接收到的直流电压转换成工作电压。