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    • 8. 发明授权
    • Series resonant drive circuit for magnetic bubble memory
    • 用于磁性气泡存储器的串联谐振驱动电路
    • US4430729A
    • 1984-02-07
    • US416043
    • 1982-09-08
    • Takashi ToyookaHirokazu AokiMamoru SugieShigeru Yoshizawa
    • Takashi ToyookaHirokazu AokiMamoru SugieShigeru Yoshizawa
    • G11C11/14G11C19/08
    • G11C19/085
    • A series resonant drive circuit for a magnetic bubble memory includes X- and Y-coils arranged orthogonally to each other for generating a rotating magnetic field applied to a magnetic bubble memory chip, resonance capacitors each connected to a corresponding one of the X- and Y-coils for forming a series resonance circuit with the corresponding coil at a frequency of the rotating magnetic field, power supplies each connected to a corresponding one of the resonance circuits, and an inductance device connected in series with both of the resonance circuits and a capacitance device connected between the resonance circuits to compensate a mutual inductance due to the inductive coupling between the X- and Y-coils and a capacitance due to the capacitive coupling between the X- and Y-coils. Further, the temperature coefficient of the capacitance device is selected so that the temperature coefficients of the mutual inductance and capacitance between the coils can be compensated.
    • 一种用于磁性气泡存储器的串联谐振驱动电路,包括彼此垂直排列的X线圈和Y型线圈,用于产生施加到磁性气泡存储器芯片的旋转磁场,谐振电容器各自连接到X和Y中相应的一个 - 用于在旋转磁场的频率下与对应的线圈形成串联谐振电路的线圈,各自连接到相应的一个谐振电路的电源,以及与两个谐振电路串联连接的电感器件和电容 连接在谐振电路之间的器件,以补偿由于X线圈和Y线圈之间的电感耦合引起的互感以及由于X线圈和Y线圈之间的电容耦合引起的电容。 此外,选择电容器件的温度系数,使得可以补偿线圈之间的互感和电容的温度系数。