公开(公告)号：US08456172B2

公开(公告)日：2013-06-04

申请号：US12981507

申请日：2010-12-30

申请人： Qi-Yan Luo ,  Song-Lin Tong ,  Peng Chen ,  Yun Bai

发明人： Qi-Yan Luo ,  Song-Lin Tong ,  Peng Chen ,  Yun Bai

IPC分类号： G01R31/12

CPC分类号： G01R31/028 ,  G01R31/025

摘要： A measurement circuit includes a switch unit with a number of keys selectively pressed to output different resistance regulating signals. A resistance setting circuit receives the resistance regulating signals and connects different resistances to a voltage circuit and a current circuit. The voltage circuit outputs different voltages. The current voltage receives a voltage from the voltage circuit and outputs a current to a capacitor. A detecting circuit measures a temperature of the capacitor and outputs the temperature to the resistance setting circuit. The resistance setting circuit compares the received temperature with a preset temperature. If the received temperature is equal to or greater than the preset temperature, the resistance setting circuit outputs short-circuit information of the capacitor. If the received temperature is less than the preset temperature, the resistance setting circuit outputs normal information of the capacitor. A display unit displays the information of the capacitor.

摘要翻译： 测量电路包括具有多个键的开关单元，其被选择性地按压以输出不同的电阻调节信号。 电阻设定电路接收电阻调节信号，并将不同的电阻连接到电压电路和电流电路。 电压电路输出不同的电压。 电流电压从电压电路接收电压并向电容器输出电流。 检测电路测量电容器的温度并将温度输出到电阻设定电路。 电阻设定电路将接收到的温度与预设温度进行比较。 如果接收到的温度等于或大于预设温度，则电阻设定电路输出电容器的短路信息。 如果接收到的温度低于预设温度，则电阻设定电路输出电容器的正常信息。 显示单元显示电容器的信息。

公开(公告)号：US08861219B2

公开(公告)日：2014-10-14

申请号：US13451044

申请日：2012-04-19

申请人： Qi-Yan Luo ,  Zhou Yang ,  Song-Lin Tong

发明人： Qi-Yan Luo ,  Zhou Yang ,  Song-Lin Tong

IPC分类号： H05K7/10 ,  H05K1/02 ,  H05K1/11

CPC分类号： H05K1/0262 ,  H05K1/111

摘要： A printed circuit board (PCB) includes two power supply units, a central processing unit (CPU), two inductors and a temperature compensation resistor. One of the inductor is electrically connected between one power supply unit and the CPU, the other inductor is electrically connected between another power supply unit and the CPU. The temperature compensation resistor is electrically connected between the power supply units and ground, and is positioned between the two inductors to adjust output voltage from the CPU.

摘要翻译： 印刷电路板（PCB）包括两个电源单元，一个中央处理单元（CPU），两个电感器和一个温度补偿电阻器。 一个电感器电连接在一个电源单元和CPU之间，另一个电感器电连接在另一个电源单元和CPU之间。 温度补偿电阻电连接在电源单元和地之间，位于两个电感之间，以调整CPU的输出电压。

公开(公告)号：US08395369B2

公开(公告)日：2013-03-12

申请号：US13171648

申请日：2011-06-29

申请人： Song-Lin Tong ,  Qi-Yan Luo

发明人： Song-Lin Tong ,  Qi-Yan Luo

IPC分类号： G05F5/00 ,  G05F1/40

CPC分类号： H02M3/1588 ,  H02M1/38 ,  Y02B70/1466

摘要： A buck converter includes a power supply unit, two MOSFETs and a delay circuit. The PWM module is coupled to the gates of the two MOSFETs to alternatively turn on the two MOSFETs. The delay circuit is coupled between an output terminal and an input node of the PWM module for making sure that a voltage applied to the PWM module is after a voltage applied to a drain the MOSFETs.

摘要翻译： 降压转换器包括电源单元，两个MOSFET和延迟电路。 PWM模块耦合到两个MOSFET的栅极，以交替地导通两个MOSFET。 延迟电路耦合在PWM模块的输出端子和输入节点之间，用于确保施加到PWM模块的电压在施加到漏极MOSFET的电压之后。

公开(公告)号：US08395351B2

公开(公告)日：2013-03-12

申请号：US13069392

申请日：2011-03-23

申请人： Song-Lin Tong ,  Qi-Yan Luo

发明人： Song-Lin Tong ,  Qi-Yan Luo

IPC分类号： H02J7/00 ,  G01R1/38 ,  H01B1/16

CPC分类号： G01R19/2503

摘要： A multimeter includes a main body, two probes extending from the main body, a battery unit arranged in the main body, and a charging system arranged in the main body and configured for charging the battery. The charging system includes a microcontroller with an external input voltage sampling circuit, a battery voltage sampling circuit and a voltage regulator circuit each electrically connected the microcontroller. The microcontroller compares sampled signals from the external input voltage sampling circuit and the battery voltage sampling circuit, and controls the voltage regulator circuit to regulate the external input voltage to be applicable to the battery based on the comparison.

摘要翻译： 万用表包括主体，从主体延伸的两个探针，布置在主体中的电池单元和布置在主体中并被配置为为电池充电的充电系统。 充电系统包括具有外部输入电压采样电路的微控制器，电池电压采样电路和每个电连接微控制器的电压调节器电路。 微控制器将来自外部输入电压采样电路的采样信号与电池电压采样电路进行比较，并根据比较控制电压调节器电路，调节外部输入电压以适用于电池。