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公开(公告)号：US20060270069A1
公开(公告)日：2006-11-30
申请号：US11439970
申请日：2006-05-25
IPC分类号： H01L21/00
CPC分类号： G01R31/30 , G01R31/3004
摘要： A method of inspecting an electronic circuit that includes a first integrated circuit and a second integrated circuit formed on a circuit board. The first integrated circuit has a first power source, an input circuit and a signal output section, and the second integrated circuit has a second power source, an output circuit and a signal input section. The method is comprised of steps of: changing voltage level of the first power source; applying a test signal to the signal input section; detecting an output signal of the signal output section; examining whether there is a sufficient margin in the electronic circuit by comparing the test signal and the output signal.
摘要翻译： 一种检查包括形成在电路板上的第一集成电路和第二集成电路的电子电路的方法。 第一集成电路具有第一电源，输入电路和信号输出部，第二集成电路具有第二电源，输出电路和信号输入部。 该方法包括以下步骤：改变第一电源的电压电平; 将测试信号施加到信号输入部分; 检测信号输出部分的输出信号; 通过比较测试信号和输出信号，检查电子电路中是否有足够的余量。
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公开(公告)号：US06411137B1
公开(公告)日：2002-06-25
申请号：US09833681
申请日：2001-04-13
申请人： Hiroshi Hattori , Hideki Kabune
发明人： Hiroshi Hattori , Hideki Kabune
IPC分类号： H03K300
摘要： A load drive apparatus for an electric load has a plurality of switching circuits having respective power MOS transistors and connected in parallel with each other to drive an electric load. The switching circuits have INH input/output terminals for driving ON/OFF of the power MOS transistors. When a high voltage detecting unit detects that a power-source voltage is high, the high voltage detecting unit outputs a high level to turn off the power MOS transistors. The MOS transistor of one switching circuits turns on and the voltage of the INH input/output terminal of the same switching circuit becomes low. Thereby, the INH input/output terminal of another switching circuits becomes low to turn off simultaneously the power MOS transistor of another switching circuit.
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