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    • 7. 发明申请
    • Multivibrator circuit for pulse width modulation
    • 用于脉宽调制的多谐振荡器电路
    • US20050280380A1
    • 2005-12-22
    • US11142098
    • 2005-06-01
    • Guenter Lohr
    • Guenter Lohr
    • H02P5/00H02P7/29H02P25/02H03K3/017H03K3/281H03K3/282H03K7/08
    • H03K3/2823H02P25/032H03K3/017
    • A multivibrator circuit has one series circuit including a first resistance and a first capacitor and determining a first switching time, and another series circuit including a second resistance and a second capacitor and determining a second switching time, a potentiometer having an arm that establishes a first resistance subregion and a second resistance subregion of the potentiometer, wherein the first resistant subregion constitutes the first resistance and the second resistant subregion constitutes the second resistance; also there are provided an electric hand tool having an electric motor and the multivibration circuit that influences a delivery of power to the electric motor, a use of a multivibrator circuit for generating a pulse width modulated signal for triggering an electric motor of an electric hand tool, and a method for variably adjusting a first and a second switching time of the multivibrator circuit.
    • 多谐振荡器电路具有包括第一电阻和第一电容器并且确定第一开关时间的一个串联电路,以及包括第二电阻和第二电容器的另一个串联电路,并确定第二开关时间;具有臂的电位器,其建立第一开关 电阻分区域和电位计的第二电阻子区域,其中第一电阻子区域构成第一电阻,第二电阻子区域构成第二电阻; 还提供了一种具有电动机的电动手动工具和影响向电动机供电的多重振荡电路,使用多谐振荡器电路来产生用于触发电动手动工具的电动机的脉宽调制信号 以及用于可变地调节多谐振荡器电路的第一和第二切换时间的方法。