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    • 94. 发明公开
    • 전류 측정 장치, 시험 장치, 전류 측정 방법, 및 시험 방법
    • 电流测量装置,测试装置,电流测量方法和测试方法
    • KR1020070112195A
    • 2007-11-22
    • KR1020077021248
    • 2006-02-22
    • 주식회사 아도반테스토
    • 하시모토요시히로
    • G01R31/02G01R31/28
    • G01R31/31924G01R19/0092G01R31/3008
    • A current measuring device measures a current which an electronic device receives from an input terminal. The current measuring device is provided with a first capacitor which accumulates a reference supply voltage to be a reference of a voltage to be supplied to the electronic device while the current is being measured; a first switch which connects a power supply to the first capacitor before measuring the current, permits the first capacitor to accumulate the reference supply voltage, and cuts the power supply from the first capacitor while the current is being measured; a current supplying section which supplies the electronic device with the current based on the reference supply voltage accumulated in the first capacitor and a terminal voltage of the input terminal; and a first current measuring section which measures a supply current supplied to the electronic device.
    • 电流测量装置测量电子设备从输入端子接收的电流。 电流测量装置设置有第一电容器,该电容器在测量电流的同时,将参考电源电压积累为要提供给电子设备的电压的基准; 在测量电流之前将电源连接到第一电容器的第一开关允许第一电容器累积参考电源电压,并且在测量电流的同时切断来自第一电容器的电源; 电流供应部,其基于在第一电容器中累积的基准电源电压和输入端子的端子电压向电子装置供给电流; 以及第一电流测量部分,其测量供应到电子设备的电源电流。
    • 95. 发明公开
    • 누설전류 측정회로 및 누설전류 비교회로
    • 泄漏电流检测电路和泄漏电流比较电路
    • KR1020070006448A
    • 2007-01-11
    • KR1020050061782
    • 2005-07-08
    • 삼성전자주식회사
    • 정건옥
    • G01R31/02
    • G01R31/275G01R31/2621G01R31/3008H03K2217/0036
    • A leakage current measurement circuit and a leakage current comparison circuit are provided to detect the current leaking through an MOS(Metal Oxide Semiconductor) transistor substrate and a gate insulator and to compare the charge quantity leaking through both the substrate and the gate insulator. A leakage current measurement circuit(100) includes a charge supply source(110) for delivering charge supplied from a first or second power source(VDD,VSS) in response to an enable signal(EN) or an inverse enable signal(ENB) with the opposite phase to the enable signal and a leakage current generating unit(120) for flowing the charge transmitted from the charge supply source to the first or second power source. The first power source has a power level relatively higher than that of the second power source.
    • 提供泄漏电流测量电路和漏电流比较电路,以检测通过MOS(金属氧化物半导体)晶体管衬底和栅极绝缘体泄露的电流,并比较通过衬底和栅绝缘体泄漏的电荷量。 泄漏电流测量电路(100)包括用于响应于使能信号(EN)或反向使能信号(ENB)传送从第一或第二电源(VDD,VSS)提供的电荷的充电源(110) 与使能信号相反的相位和用于使从电荷源发送到第一或第二电源的电荷的泄漏电流产生单元(120)。 第一电源具有相对高于第二电源的功率电平。
    • 97. 发明公开
    • LEAKAGE CURRENT DETECTION METHOD AND DEVICE
    • 漏电流检测方法和装置
    • EP2977770A4
    • 2016-07-06
    • EP14834041
    • 2014-01-22
    • HUAWEI TECH CO LTD
    • ZHU QINGSONGXIE LUJUN
    • G01R19/00G01R31/02G01R31/28G01R31/30
    • G01R31/025G01R31/2812G01R31/2813G01R31/3008
    • The present invention relates to a leakage current detection method and apparatus. The method is applied to leakage current detection for a board-mounted component on a PCBA board, and includes: providing a fixed voltage for a leakage current input end of a board-mounted component under detection, and connecting an leakage current output end to an inverting input end of an operational amplifier of a resistance testing module, where the resistance testing module includes the operational amplifier and a reference resistor that is connected between the inverting input end of the operational amplifier and the leakage current output end; detecting an output voltage of the resistance testing module; and calculating, based on Ohm's law and according to the output voltage and the reference resistor, a leakage current flowing through the board-mounted component under detection. According to the present invention, the board-mounted component under detection is connected to the resistance testing module, and a specific voltage is applied. In this way, the leakage current of the board-mounted component on the PCBA board can be calculated according to the reference resistor of the resistance testing module and the output voltage of the operational amplifier. Batch detection can be implemented without a need of removing the board-mounted component from the board, and the detection has high accuracy, high efficiency, and a great ratio.