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    • 6. 发明申请
    • MOSFET DRIVE CIRCUIT, PROGRAMMABLE POWER SUPPLY AND SEMICONDUCTOR TEST APPARATUS
    • MOSFET驱动电路,可编程电源和半导体测试装置
    • WO2005124377A1
    • 2005-12-29
    • PCT/JP2005/011701
    • 2005-06-21
    • ADVANTEST CORPORATIONSATO, Nobuhiro
    • SATO, Nobuhiro
    • G01R31/26
    • H03K17/785H03K17/04123H03K17/6872
    • In a programmable power supply used in a semiconductor test apparatus, high-speed switching of a large current in a current rage or an output relay is enabled. In an MOSFET drive circuit 22 of a switch portion 20 provided in a programmable power supply 10 of a semiconductor test apparatus 1, a capacitor portion 22-12 is charged with electric charges by a current from a light receiving portion 22-12 of a light insulating element 22-1. When an SWA is turned on (SWB is turned off) by changeover of the analog switch portion 22-3, a gate of each MOSFET in the MOSFET portion 21 is charged with the electric charges stored in the capacitor portion 22-12, and enters an ON state. On the other hand, when the SWB of the analog switch portion 22-3 is turned on (SWA is turned off), the gate of the MOSFET is discharged.
    • 在半导体测试装置中使用的可编程电源中,能够实现目前的大容量电流或输出继电器的高速切换。 在设置在半导体测试装置1的可编程电源10中的开关部分20的MOSFET驱动电路22中,通过来自光的受光部分22-12的电流对电容器部分22-12充电 绝缘元件22-1。 当通过模拟开关部分22-3的切换使SWA接通(SWB关闭)时,MOSFET部分21中的每个MOSFET的栅极被充满存储在电容器部分22-12中的电荷,并进入 ON状态。 另一方面,当模拟开关部分22-3的SWB导通(SWA截止)时,MOSFET的栅极被放电。
    • 10. 发明专利
    • MANUFACTURE OF READY MIXED CONCRETE USING SENSOR AND COMPUTER
    • JPH03118114A
    • 1991-05-20
    • JP25751989
    • 1989-10-02
    • SATO NOBUHIRO
    • SATO NOBUHIRO
    • B28C7/04
    • PURPOSE:To manufacture ready mixed concrete of uniformly good quality all the time by measuring variation values of variation elements of ready mixed concrete at the kneading time by a sensor, which is introduced and stored in a computer, computing and sensing the modified or corrected values and reflecting the same to the manufacturing process. CONSTITUTION:As for the variation elements, the variation of concrete temperature depending on the temperature of respective materials, grain size of fine aggregates, actual result rate of rough aggregates, concentration of recovered water and variation of surface water rate of respective aggregates are mentioned. The estimated values of kneaded concrete temperature is computed by the measured temperature of respective raw materials, water absorbing rate of aggregates, surface water rate of aggregates and weight of respective materials to be used. Then, preliminary modification is carried out by the modified values of every division of temperature fixed preliminarily. Then, the rough grain size rate of aggregates is sensed, and secondary modification is carried out by the modified values for every division of rough grain size rate fixed preliminarily. Then, density and water content of rough aggregates are sensed, and actual result rate is computed from said density and water content and also the gravity of rough aggregate, which is compared with the reference value to modify the unit water volume and unit rough aggregate quantity, and then tertiary modification is performed. When the recovered water can not be used from the viewpoint of blending, respective materials are increased by the given ratio, and then correction of rough aggregates is carried out from the sensed value of the surface water rate of fine aggregates to fix the blending at the site.