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    • 2. 发明申请
    • CIRCUIT FOR INDICATING OPERATING STATUS OF COMPUTER HARDWARE DEVICES
    • 用于表示计算机硬件设备操作状态的电路
    • US20100141462A1
    • 2010-06-10
    • US12340754
    • 2008-12-22
    • XUN-CHUN QIUGUANG-DONG YUANCHUNG-CHI HUANGRONG HU
    • XUN-CHUN QIUGUANG-DONG YUANCHUNG-CHI HUANGRONG HU
    • G08B21/00
    • G06F11/325
    • A circuit for indicating operating status of a plurality of hardware devices of a computer includes a detecting module, a decoding module, and an indicating module. The indicating module includes a dual color indicator and two electronic switches connected to a first input and a second input of the dual color indicator respectively. The detecting module detects an operating status of the plurality of hardware devices, and outputs state signals of each hardware device during power on self test of the computer. The decoding module decodes the state signals, and outputs level control signals to turn on or off the two electronic switches. The dual color indicator indicates operating status of the plurality of hardware devices by shifted to be at different indicating states by the two electronic switches correspondingly.
    • 用于指示计算机的多个硬件设备的操作状态的电路包括检测模块,解码模块和指示模块。 指示模块包括分别连接到双色指示器的第一输入和第二输入的双色指示器和两个电子开关。 检测模块检测多个硬件设备的运行状态,并且在计算机的上电自检期间输出每个硬件设备的状态信号。 解码模块解码状态信号,并输出电平控制信号以打开或关闭两个电子开关。 双色指示器通过两个电子开关相应地转移到不同的指示状态来指示多个硬件设备的操作状态。
    • 3. 发明申请
    • FAN DELAY CONTROL CIRCUIT
    • 风扇延迟控制电路
    • US20120326648A1
    • 2012-12-27
    • US13219724
    • 2011-08-29
    • XUN-CHUN QIUGUANG-DONG YUAN
    • XUN-CHUN QIUGUANG-DONG YUAN
    • H02P3/00
    • F04D27/004
    • A fan delay control circuit includes a fan connector connected to a fan of an electronic device, a power supplying module connected to the fan connector, and a rotational speed controlling module connected to the power supplying module. The power supplying module is connected to a fan power source and a stand-by power source. The power supplying module may continue to supply power to the fan when the electronic device including the fan is powered off. The rotational speed controlling module includes a square wave generation circuit which generates a square wave signal to control a rotational speed of the fan even when the electronic device is powered off.
    • 风扇延迟控制电路包括连接到电子设备的风扇的风扇连接器,连接到风扇连接器的供电模块和连接到电力供应模块的转速控制模块。 电源模块连接到风扇电源和待机电源。 当包括风扇的电子设备断电时,供电模块可以继续向风扇供电。 旋转速度控制模块包括即使在电子设备断电时也产生方波信号以控制风扇的转速的方波发生电路。
    • 5. 发明申请
    • CONTROL CIRCUIT FOR LIGHT-EMITTING DIODES
    • 用于发光二极管的控制电路
    • US20140111100A1
    • 2014-04-24
    • US13682761
    • 2012-11-21
    • GUANG-DONG YUANJIN-BO WANGCHUNG-CHI HUANG
    • GUANG-DONG YUANJIN-BO WANGCHUNG-CHI HUANG
    • H05B37/02
    • H05B37/02H05B33/0809
    • A circuit includes a number of LEDs connected in series, and first and second electronic switches. An anode of a first one of the LEDs is connected to a first power supply. A control terminal of the first electronic switch receives a control signal. A first terminal of the first electronic switch is connected to a second power supply. A second terminal of the first electronic switch is grounded through a first resistor. A control terminal of the second electronic switch is connected to the second terminal of the first electronic switch. A first terminal of the second electronic switch is connected to a cathode of a last one of the LEDs. A second terminal of the second electronic switch is grounded through a second resistor.
    • 电路包括串联连接的多个LED以及第一和第二电子开关。 第一个LED的阳极连接到第一电源。 第一电子开关的控制端子接收控制信号。 第一电子开关的第一端子连接到第二电源。 第一电子开关的第二端子通过第一电阻器接地。 第二电子开关的控制端子连接到第一电子开关的第二端子。 第二电子开关的第一端子连接到最后一个LED的阴极。 第二电子开关的第二端子通过第二电阻器接地。
    • 9. 发明申请
    • MOTHERBOARD TESTER
    • 母板测试仪
    • US20090158093A1
    • 2009-06-18
    • US11963877
    • 2007-12-24
    • RAN CHENDA-YOU CHENGUANG-DONG YUANCHUNG-CHI HUANG
    • RAN CHENDA-YOU CHENGUANG-DONG YUANCHUNG-CHI HUANG
    • G06F11/273
    • G06F11/27
    • An exemplary motherboard tester includes a processor comprising a pair of data terminals for transmitting data; and an interface comprising: a pair of data terminals coupled to the data terminals of the processor respectively; at least one output terminal arranged for connecting to a corresponding pin of a chipset mounted on a motherboard to send a test signal generated by the processor to the pin; and at least one input terminal arranged for connecting to a test point on the motherboard which is electrically connected to the pin, to receive a feedback signal from the test point, wherein, the processor compares the feedback signal with the test signal to determine whether the pin of the chipset is normal, open, or shorted.
    • 示例性主板测试器包括:处理器,包括用于发送数据的一对数据终端; 以及接口,包括:分别耦合到所述处理器的数据终端的一对数据终端; 至少一个输出端子布置成连接到安装在母板上的芯片组的相应引脚,以将由处理器产生的测试信号发送到引脚; 以及至少一个输入端子,其布置成用于连接到与所述引脚电连接的所述母板上的测试点,以从所述测试点接收反馈信号,其中,所述处理器将所述反馈信号与所述测试信号进行比较,以确定是否 芯片组的引脚是正常的,开路的或短路的。
    • 10. 发明申请
    • DRYING APPARATUS
    • 干燥装置
    • US20080276487A1
    • 2008-11-13
    • US11959472
    • 2007-12-19
    • GUANG-DONG YUANCHUNG-CHI HUANGXIAN-MING WANG
    • GUANG-DONG YUANCHUNG-CHI HUANGXIAN-MING WANG
    • F26B21/08
    • F26B21/08
    • A drying apparatus includes a humidity sensor module, a micro control unit (MCU) module, an indicator circuit, and a fan module. The humidity sensor module measures relative humidity of air in a computer, and converts that measurement to an electronic signal. The MCU module receives the electronic signal from the humidity sensor module, and respectively outputs an indication signal and a control signal when the measured humidity is greater than a predetermined value stored in the MCU module. The indicator circuit indicates the humidity in the computer is too high when it receives the indication signal from the MCU module. The fan is activated when it receives the control signal from the MCU module.
    • 干燥装置包括湿度传感器模块,微控制单元(MCU)模块,指示器电路和风扇模块。 湿度传感器模块测量计算机中空气的相对湿度,并将该测量值转换为电子信号。 MCU模块从湿度传感器模块接收电子信号,当测量的湿度大于存储在MCU模块中的预定值时,分别输出指示信号和控制信号。 指示电路表示从MCU模块接收到指示信号时,计算机的湿度过高。 当从MCU模块接收到控制信号时,风扇被激活。