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1. 发明授权

US4825018A Voltage detection circuit 失效
标题翻译：电压检测电路
公开(公告)号：US4825018A
公开(公告)日：1989-04-25
申请号：US197450
申请日：1988-05-20
申请人： Yasuyuki Okada , Makoto Kojima , Hirozumi Misaki
发明人： Yasuyuki Okada , Makoto Kojima , Hirozumi Misaki
IPC分类号： G01R19/165 , H01L27/088 , H01L29/423 , G05F1/565
CPC分类号： H01L29/42368 , G01R19/16519 , H01L27/088
摘要： In a voltage detection circuit, at least a portion of the gate insulation film of a voltage detecting transistor is formed thicker than the other portion of the gate insulation film. Such voltage detecting transistor can be fabricated on a semiconductor substrate in the same process as conventional MOS transistors, so that the extra mask or process is not required. And since the amount of trapped electron does not change due to the passing of time, aging effects for detection precision is small.

2. 发明授权

US4839787A Integrated high voltage generating system 失效
标题翻译：集成高压发电系统
公开(公告)号：US4839787A
公开(公告)日：1989-06-13
申请号：US197448
申请日：1988-05-20
申请人： Makoto Kojima , Hirozumi Misaki , Yasuyuki Okada
发明人： Makoto Kojima , Hirozumi Misaki , Yasuyuki Okada
IPC分类号： H01L21/8234 , H01L21/822 , H01L27/04 , H01L27/088 , H02M3/07
CPC分类号： H02M3/073 , H02M2001/009
摘要： This invention relates to an integrated high voltage generating system provided with a charge pump for raising the input power supply voltage sequentially while transferring the electric charges of the capacitors on a stage by stage basis, by serially connecting unit circuits composed of diode elements and capacitors, and supplying clock signals of mutually opposite phases to adjacent capacitors. Source and drain electrodes of a MOS transistor are connected between the first power supply output terminal and a second power supply output terminal, and the gate electrode of this MOS transistor is connected to the input end of any one of the unit circuits of the charge pump, wherein the voltage of the first power supply output terminal is stepped down depending on the voltage applied to the gate electrode of the MOS transistor, and is delivered to the second power supply output terminal. In this way, since the voltage is not stepped down using a dividing circuit, a potential between input power supply voltage and the first input power supply voltage can be obtained from the second power supply output terminal, without consuming unnecessary current and without causing the chip area to be increased.

3. 发明授权

US4979088A Integrated high voltage generating system 失效
标题翻译：集成高压发电系统
公开(公告)号：US4979088A
公开(公告)日：1990-12-18
申请号：US457167
申请日：1989-12-26
申请人： Hirozumi Misaki , Yasuyuki Okada
发明人： Hirozumi Misaki , Yasuyuki Okada
IPC分类号： H02M3/07
CPC分类号： H02M3/07
摘要： The invention discloses an integrated high voltage generating system possessing a charge pump for boosting stepwise the potential of an output node sequentially from the value of a first supply voltage to the value of a second supply voltage in synchronism with the clock pulses applied through a capacitor, wherein the second supply voltage is supplied to the gate electrode of the output MOS transistor connected between the output node of the charge pump and the output terminal. In this constitution, since the gate potential of the output MOS transistor is fixed at the valve of the second supply voltage, the potential fluctuation due to clock pulses does not appear on the output voltage taken out of the output terminal.
摘要翻译：本发明公开了一种具有电荷泵的集成高压发生系统，其与通过电容器施加的时钟脉冲同步地逐步升压输出节点的电位，从第一电源电压的值顺序地升高到第二电源电压的值，其中第二电源电压被提供给连接在电荷泵的输出节点和输出端之间的输出MOS晶体管的栅电极。在该结构中，由于输出MOS晶体管的栅极电位固定在第二电源电压的阀上，所以在从输出端子输出的输出电压上没有出现由时钟脉冲引起的电位波动。

4. 发明授权

US4504795A Impedance conversion circuit using FETs 失效
标题翻译：使用FET的阻抗转换电路
公开(公告)号：US4504795A
公开(公告)日：1985-03-12
申请号：US409346
申请日：1982-08-18
申请人： Taku Gobara , Hirozumi Misaki
发明人： Taku Gobara , Hirozumi Misaki
IPC分类号： F02P15/12 , H03F3/34 , H03F3/50 , H03H11/40 , H03F3/16
CPC分类号： F02P15/12 , H03F3/505
摘要： An impedance conversion circuit wherein source-follower circuits are formed at the input side and at the output side, between the first source-follower circuit (input side) and the second source-follower circuit (output side), a signal transmission circuit is constructed by connecting two FETs. In this circuit the threshold voltages of the FETs and variation of the threshold voltages can be offset, whereby the output voltage becomes equal to the imput voltage regardless of fluctuations of the threshold voltage or temperature, thereby retaining the voltage constant during impedance conversion from a high input impedance to a low output impedance.
摘要翻译：一种阻抗转换电路，其中源极跟随器电路形成在第一源极跟随器电路（输入侧）和第二源极跟随器电路（输出侧）之间的输入侧和输出侧，构成信号传输电路通过连接两个FET。在该电路中，FET的阈值电压和阈值电压的变化可以被偏移，由此，无论阈值电压或温度的波动如何，输出电压都等于输入电压，从而在高阻抗转换期间保持电压恒定输入阻抗为低输出阻抗。

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