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    • 9. 发明公开
    • Flip-flop circuit
    • 触发器电路
    • EP0209844A3
    • 1989-08-23
    • EP86109745.9
    • 1986-07-16
    • KABUSHIKI KAISHA TOSHIBAToshiba Micro-Computer Engineering Corporation
    • Magome, Koichi c/o Patent DivisionToda, Haruki c/o Patent DivisionKoinuma, Hiroyuki c/o Patent DivisionSahara, Hiroshi c/o Patent DivisionSuzuki, Kiminobu c/o Patent DivisionOhshima, Shigeo c/o Patent DivisionKomatsu, Kenji c/o Patent Division
    • H03K3/356G11C8/00
    • H03K3/356026G11C8/06
    • A flip-flop circuit has a power terminal (VDD) set at 5 V, first and second output terminals (OUT, OUT ), a latch section (20) for charging one of the first and second terminals (OUT, OUT ) to 5 V and discharging the other one of the first and second terminals (OUT, OUT ) to 0 V in accordance with an input signal ( , - ), a first MOS transistor (Q6) having a current path connected between the power and first output terminals (VDD, OUT), a second MOS transistor (Q8) for charging the gate of the first MOS transistor (Q6) while the potential of the second terminal ( OUT ) is changed from 5 V to 0 V, and a capacitor (C4) for bootstrapping the gate potential of the first MOS transistor (Q6) to turn on the first MOS transistor. The flip-flop circuit further includes a third MOS transistor (Q10), having a current path connected between the gate of the first MOS transistor (Q6) and the first output terminal (OUT) and a gate connected to the first output terminal (OUT), for charging the gate of the first MOS transistor (Q6) when the gate potential of the first MOS transistor (Q6) is dropped a predetermined level in comparison with that of the first output terminal (OUT).
    • 触发器电路具有设定为5V的电源端子(VDD),第一和第二输出端子(OUT,OUT),用于对第一和第二端子(OUT,OUT)中的一个端子(5)充电的锁存部件(20) V,并且根据输入信号(, - )将第一和第二端子(OUT,OUT)中的另一个放电至0V,第一MOS晶体管(Q6)具有连接在电源和第一输出端子 (VDD,OUT);第二MOS晶体管(Q8),用于在第二端子(OUT)的电位从5V变为0V的同时对第一MOS晶体管(Q6)的栅极充电;以及电容器(C4) 用于引导第一MOS晶体管(Q6)的栅极电势以导通第一MOS晶体管。 触发器电路还包括第三MOS晶体管(Q10),其具有连接在第一MOS晶体管(Q6)的栅极和第一输出端子(OUT)之间的电流路径以及连接到第一输出端子(OUT)的栅极 ),当第一MOS晶体管(Q6)的栅极电位与第一输出端子(OUT)的栅极电位相比下降预定电平时,用于给第一MOS晶体管(Q6)的栅极充电。