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    • 6. 发明授权
    • MOS half-bridge drive circuit, particularly for power MOS half-bridges
    • MOS半桥驱动电路,特别适用于功率MOS半桥
    • US5541540A
    • 1996-07-30
    • US318350
    • 1994-10-05
    • Roberto GariboldiMarcello Leone
    • Roberto GariboldiMarcello Leone
    • H02M1/08H03F3/26H03K17/06H03K17/687H03L5/00
    • H03K17/063H03K17/6871H03K17/6877
    • A drive circuit includes a voltage source supplying a reference voltage at its output; a voltage elevating circuit connected to a supply voltage and to the output of the voltage source, and supplying at its output, under normal operating conditions, a drive voltage greater than the supply voltage and increasing with the reference voltage. The input of the voltage source is connected to the output of the voltage elevating circuit, and defines a positive feedback path resulting in an increase in the reference voltage corresponding to an increase in the drive voltage, and therefore results in a corresponding increase in the drive voltage up to a maximum permissible value, thus providing for a sufficient drive voltage for driving the gate-source junction of power MOS transistors, even in the presence of a low supply voltage.
    • 驱动电路包括在其输出端提供参考电压的电压源; 连接到电源电压和电压源的输出端的电压提升电路,在正常工作条件下,在其输出端提供大于电源电压的驱动电压并用参考电压增加。 电压源的输入连接到电压升高电路的输出,并且定义正的反馈路径,导致对应于驱动电压的增加的参考电压的增加,因此导致驱动器的相应增加 电压达到最大允许值,因此即使在存在低电源电压的情况下也提供用于驱动功率MOS晶体管的栅 - 源结的足够的驱动电压。
    • 8. 发明授权
    • MOS half-bridge drive circuit, particularly for power MOS half-bridges
    • MOS半桥驱动电路,特别适用于功率MOS半桥
    • US5376832A
    • 1994-12-27
    • US29691
    • 1993-03-11
    • Roberto GariboldiMarcello Leone
    • Roberto GariboldiMarcello Leone
    • H02M1/08H03F3/26H03K17/06H03K17/687H03L5/00
    • H03K17/063H03K17/6871H03K17/6877
    • A drive circuit includes a voltage source supplying a reference voltage at its output; a voltage elevating circuit connected to a supply voltage and to the output of the voltage source, and supplying at its output, under normal operating conditions, a drive voltage greater than the supply voltage and increasing with the reference voltage. The input of the voltage source is connected to the output of the voltage elevating circuit, and defines a positive feedback path resulting in an increase in the reference voltage corresponding to an increase in the drive voltage, and therefore results in a corresponding increase in the drive voltage up to a maximum permissible value, thus providing for a sufficient drive voltage for driving the gate-source junction of power MOS transistors, even in the presence of a low supply voltage.
    • 驱动电路包括在其输出端提供参考电压的电压源; 连接到电源电压和电压源的输出端的电压提升电路,在正常工作条件下,在其输出端提供大于电源电压的驱动电压并用参考电压增加。 电压源的输入连接到电压升高电路的输出,并且定义正的反馈路径,导致对应于驱动电压的增加的参考电压的增加,因此导致驱动器的相应增加 电压达到最大允许值,因此即使在存在低电源电压的情况下也提供用于驱动功率MOS晶体管的栅 - 源结的足够的驱动电压。