TEST CIRCUIT FOR TESTING SHORT-CIRCUIT
    1.
    发明申请
    TEST CIRCUIT FOR TESTING SHORT-CIRCUIT 审中-公开
    用于测试短路的测试电路

    公开(公告)号:US20130038343A1

    公开(公告)日:2013-02-14

    申请号:US13275374

    申请日:2011-10-18

    IPC分类号: G01R31/20 G01R31/02

    摘要: A test circuit includes two probes, a comparison circuit, a switch circuit, and an indication circuit. The probes are connected to an electronic component to be tested, and a low level signal is output if the electronic component is short-circuited. The comparison circuit outputs a comparison signal based on the shorting signal from the probes. The switch circuit outputs a switch signal based on the comparison signal from the comparison circuit. The indication circuit indicates that the electronic component is short-circuited or not short-circuited based on the switch signal fro m the switch circuit.

    摘要翻译: 测试电路包括两个探针,比较电路,开关电路和指示电路。 探针连接到要测试的电子部件,并且如果电子部件短路,则输出低电平信号。 比较电路基于来自探针的短路信号输出比较信号。 开关电路基于来自比较电路的比较信号输出开关信号。 指示电路表示电子部件基于开关电路的开关信号而短路或不短路。

    OVERVOLTAGE PROTECTION CIRCUIT
    2.
    发明申请
    OVERVOLTAGE PROTECTION CIRCUIT 审中-公开
    过电压保护电路

    公开(公告)号:US20130148247A1

    公开(公告)日:2013-06-13

    申请号:US13600108

    申请日:2012-08-30

    IPC分类号: H02H3/20

    CPC分类号: H02H9/04 H02H3/20

    摘要: An overvoltage protection circuit includes a power device for outputting a plurality of first powers, a plurality of VRMs for respectively receiving the plurality of first powers, a plurality of voltage dividing circuits, a reference power supply for outputting a reference voltage, and a comparison circuit having a comparator. Each VRM converts a corresponding first power to a regulated second power. The plurality of voltage dividing circuits respectively divides voltages of the second powers, each voltage dividing circuit outputs a divided voltage. The comparator compares a combination of the divided voltages with the reference voltage, and when an overvoltage occurs in at least one of the second powers, the comparator outputs a control signal via the output terminal to the power device to control the power device to shut down all of the first powers.

    摘要翻译: 过电压保护电路包括用于输出多个第一功率的功率器件,用于分别接收多个第一功率的多个VRM,多个分压电路,用于输出参考电压的参考电源,以及比较电路 具有比较器。 每个VRM将相应的第一功率转换为调节的第二功率。 多个分压电路分别划分第二功率的电压,每个分压电路输出分压。 比较器将分压电压与参考电压的组合进行比较,当在至少一个第二功率中发生过电压时,比较器通过输出端输出控制信号给功率器件,以控制功率器件关断 所有的第一个权力。

    VISUAL DISPLAY CONNECTION CIRCUIT
    3.
    发明申请
    VISUAL DISPLAY CONNECTION CIRCUIT 审中-公开
    视觉显示连接电路

    公开(公告)号:US20130088472A1

    公开(公告)日:2013-04-11

    申请号:US13329341

    申请日:2011-12-19

    IPC分类号: G09G5/00

    摘要: A connection circuit for a digital visual interface (DVI) includes a platform controller hub (PCH), a DVI, a plurality of voltage dividing resistors, and a switch. The platform controller hub (PCH) includes a plurality of output contacts outputting a plurality of analog signals. The DVI includes a plurality of input contacts, and each input contact is connected to one of the output contacts to transmit the analog signals. The switch has one end connected to the output contacts, and another end grounded. The switch switches on when a power supply is applied to the switch and is switched off when the power supply is not applied to the switch.

    摘要翻译: 用于数字可视界面(DVI)的连接电路包括平台控制器集线器(PCH),DVI,多个分压电阻器和开关。 平台控制器集线器(PCH)包括输出多个模拟信号的多个输出触点。 DVI包括多个输入触点,并且每个输入触点连接到一个输出触点以发送模拟信号。 开关的一端连接到输出触点,另一端接地。 当电源施加到开关上时,开关打开,当电源未施加到开关上时,开关断开。

    CIRCUIT FOR CLEARING COMPLEMENTARY METAL OXIDE SEMICONDUCTOR INFORMATION
    4.
    发明申请
    CIRCUIT FOR CLEARING COMPLEMENTARY METAL OXIDE SEMICONDUCTOR INFORMATION 审中-公开
    用于清除补充金属氧化物半导体信息的电路

    公开(公告)号:US20130057324A1

    公开(公告)日:2013-03-07

    申请号:US13305127

    申请日:2011-11-28

    IPC分类号: H03L7/00

    CPC分类号: G11C7/20

    摘要: A circuit for clearing complementary metal oxide semiconductor (CMOS) information of a CMOS chip includes a battery, first to fifth resistors, first and second electronic switches, a switching unit, and first and second diodes. The circuit can clear information of the CMOS chip when one or more switches are activated.

    摘要翻译: 用于清除CMOS芯片的互补金属氧化物半导体(CMOS)信息的电路包括电池,第一至第五电阻器,第一和第二电子开关,开关单元以及第一和第二二极管。 当激活一个或多个开关时,电路可以清除CMOS芯片的信息。

    FAST-DISCHARGING CIRCUIT
    5.
    发明申请
    FAST-DISCHARGING CIRCUIT 审中-公开
    快速放电电路

    公开(公告)号:US20130009474A1

    公开(公告)日:2013-01-10

    申请号:US13411611

    申请日:2012-03-04

    IPC分类号: H02J1/10

    摘要: A fast-discharge circuit includes at least one power supply group, a switch circuit, and a power connector. Each power supply group includes a power supply unit, stabilizing capacitances, a diode, and a resistance. The power supply unit includes a positive output and a negative output. Anodes of the stabilizing capacitances and the diode are connected to the positive output of the power supply unit. Cathodes of the stabilizing capacitances are connected to the negative output. A cathode of the diode is also connected to the negative output through the resistance. The switch circuit includes a NMOS transistor. A drain of the NMOS transistor is electrically connected to the negative outputs of each power supply; a source of the NMOS transistor is grounded. The power connector includes a PS-ON pin electrically connected to a gate of the NMOS transistor.

    摘要翻译: 快速放电电路包括至少一个电源组,开关电路和电源连接器。 每个电源组包括电源单元,稳定电容,二极管和电阻。 电源单元包括正输出和负输出。 稳定电容和二极管的阳极连接到电源单元的正极。 稳定电容的阴极连接到负输出。 二极管的阴极也通过电阻连接到负输出端。 开关电路包括NMOS晶体管。 NMOS晶体管的漏极电连接到每个电源的负输出; NMOS晶体管的源极接地。 电源连接器包括电连接到NMOS晶体管的栅极的PS-ON引脚。

    LOAD-TESTING CIRCUIT FOR USB PORTS
    6.
    发明申请
    LOAD-TESTING CIRCUIT FOR USB PORTS 审中-公开
    USB端口负载测试电路

    公开(公告)号:US20120319663A1

    公开(公告)日:2012-12-20

    申请号:US13213073

    申请日:2011-08-18

    IPC分类号: G05F1/10

    CPC分类号: G06F1/266 G01R31/40

    摘要: A power supply circuit is configured for simulating the maximum standard load currents for different kinds of USB ports, and each of the USB ports includes a power terminal; the load-testing circuit includes a voltage regulating circuit, a voltage dividing circuit, a first operational amplifier, a first transistor, and a current limiting resistor. The voltage regulating circuit is configured for supplying a reference voltage to the voltage dividing circuit. The reference voltage is divided by sub-circuits of the voltage dividing circuit. When the sub-circuit connected to the voltage regulating circuit and the first operational amplifier is changed, a current flows from the first transistor and the current limiting resistor is changed.

    摘要翻译: 电源电路被配置为模拟不同种类的USB端口的最大标准负载电流,并且每个USB端口包括电源端子; 负载测试电路包括电压调节电路,分压电路,第一运算放大器,第一晶体管和限流电阻器。 电压调节电路被配置为向分压电路提供参考电压。 参考电压由分压电路的子电路分压。 当连接到电压调节电路和第一运算放大器的子电路改变时,电流从第一晶体管流过并且限流电阻改变。

    CHARGING CIRCUIT WITH UNIVERSAL SERIAL BUS PORT
    7.
    发明申请
    CHARGING CIRCUIT WITH UNIVERSAL SERIAL BUS PORT 审中-公开
    充电电路与通用串行总线端口

    公开(公告)号:US20120306435A1

    公开(公告)日:2012-12-06

    申请号:US13239415

    申请日:2011-09-22

    IPC分类号: H02J7/00

    摘要: A charging circuit includes a switch, a standby power supply, a first power supply, a second power supply, a universal serial bus (USB) port, and a power supply switching module with a first to a fourth terminals. According to the power states of a computer, the power supply switching module allows either a first power supply or a second standby power supply to provide a charging voltage for the USB port through controlling the switch.

    摘要翻译: 充电电路包括开关,备用电源,第一电源,第二电源,通用串行总线(USB)端口和具有第一至第四端子的电源开关模块。 根据计算机的电源状态,电源开关模块允许第一电源或第二待机电源通过控制开关为USB端口提供充电电压。

    INDICATOR LIGHT CONTROL CIRCUIT
    8.
    发明申请
    INDICATOR LIGHT CONTROL CIRCUIT 审中-公开
    指示灯控制电路

    公开(公告)号:US20130147632A1

    公开(公告)日:2013-06-13

    申请号:US13587862

    申请日:2012-08-16

    IPC分类号: G08B5/36

    CPC分类号: H05B33/0806

    摘要: An indicator light control circuit for controlling a single indicator light to indicate a high or low link speed of a network connection includes a pulse signal generating circuit, a bias circuit having a digital potentiometer, and a controller. The pulse signal generating circuit generates a pulse signal. The digital potentiometer is electronically connected to the pulse signal generating circuit and the controller. The controller adjusts the effective resistance of the digital potentiometer connected to the pulse signal generating circuit according to different link speeds being experienced in the network connection, to adjust a duty cycle of the pulse signal, thereby changing the on-time and off-time of the indicator light.

    摘要翻译: 用于控制单个指示灯以指示网络连接的高或低链路速度的指示灯控制电路包括脉冲信号发生电路,具有数字电位计的偏置电路和控制器。 脉冲信号发生电路产生脉冲信号。 数字电位器电连接到脉冲信号发生电路和控制器。 控制器根据网络连接中遇到的不同链路速度,调整连接到脉冲信号发生电路的数字电位器的有效电阻,调整脉冲信号的占空比,从而改变脉冲信号发生电路的导通时间和关断时间 指示灯。

    OVERVOLTAGE PROTECTION CIRCUIT
    9.
    发明申请
    OVERVOLTAGE PROTECTION CIRCUIT 审中-公开
    过电压保护电路

    公开(公告)号:US20130128404A1

    公开(公告)日:2013-05-23

    申请号:US13570206

    申请日:2012-08-08

    IPC分类号: H02H3/20

    CPC分类号: H02H7/18 H02H3/202

    摘要: A protection circuit that protects a load charged by a power supply. The protection circuit includes a reference voltage set circuit, a sampling circuit, a switch, and a comparator. The reference voltage set circuit provides a reference voltage. The sampling circuit is electrically connected to the power supply and provides a sampling voltage based on a charge voltage output from the power supply to the load. The switch is electrically connected between the power supply and the load. The comparator includes a non-inverting input terminal electrically connected to the reference voltage set circuit, an inverting input terminal electrically connected to the sampling circuit, and an output terminal electrically connected to the switch. The comparator compares the sampling voltage with the reference voltage, and controls the switch to turn on or off according to the comparison.

    摘要翻译: 保护由电源充电的负载的保护电路。 保护电路包括参考电压设置电路,采样电路,开关和比较器。 参考电压设置电路提供参考电压。 采样电路电连接到电源,并且基于从电源向负载输出的充电电压提供采样电压。 开关电连接在电源和负载之间。 比较器包括电连接到参考电压设置电路的非反相输入端子,电连接到采样电路的反相输入端子和电连接到开关的输出端子。 比较器将采样电压与参考电压进行比较,并根据比较控制开关导通或关断。

    POWER SUPPLY SYSTEM FOR AIR CONDITIONER OF CAR
    10.
    发明申请
    POWER SUPPLY SYSTEM FOR AIR CONDITIONER OF CAR 审中-公开
    汽车空调电源系统

    公开(公告)号:US20130057064A1

    公开(公告)日:2013-03-07

    申请号:US13305106

    申请日:2011-11-28

    IPC分类号: B60L1/00

    CPC分类号: H02J9/06 H02J7/35 Y02B10/72

    摘要: A power supply system for an air conditioner of a car includes a battery, an alternator, a detection circuit to detect whether the alternator is operating and outputting a detection signal according to the detection result, a processing unit to output a control signal according to the detection signal, and a switching circuit to connect either the battery or the alternator to the air conditioner.

    摘要翻译: 一种用于汽车空调的电源系统,包括:电池,交流发电机,检测交流发电机是否工作的检测电路,以及根据检测结果输出检测信号;处理部,根据所述检测结果输出控制信号 检测信号和用于将电池或交流发电机连接到空调的开关电路。