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    • 5. 发明授权
    • Voltage sequencing circuit
    • 电压排序电路
    • US06691239B1
    • 2004-02-10
    • US09711781
    • 2000-11-13
    • Bruce W. Rose
    • Bruce W. Rose
    • G06F126
    • G06F1/26
    • A voltage sequencing circuit for applying a plurality of voltages to an electrical system in a predetermined sequence charges the input capacitance of a pass device to set the timing between successive power applications in the system. In one embodiment, a current source coupled to the gate terminal of a field effect transistor (FET) pass device is enabled when a previous voltage in the predetermined voltage sequence has achieved a desired level. The output current of the current source then begins to charge the gate terminal of the FET. When the gate voltage achieves a predetermined reference level, a drive unit applies a voltage to the gate terminal that exceeds a threshold voltage of the FET. The FET then causes the next voltage in the predetermined voltage sequence to be applied.
    • 用于以预定顺序向电气系统施加多个电压的电压排序电路为通过装置的输入电容充电以设置系统中的连续功率应用之间的定时。 在一个实施例中,当预定电压序列中的先前电压达到期望电平时,耦合到场效应晶体管(FET)通过器件的栅极端子的电流源被使能。 然后,电流源的输出电流开始对FET的栅极端子充电。 当栅极电压达到预定的参考电平时,驱动单元向栅极端施加超过FET的阈值电压的电压。 然后,FET施加预定电压序列中的下一个电压。
    • 8. 发明授权
    • Voltage sequencing arrangements providing first and second voltages sequenced to each other in time
    • 提供在时间上相互排序的第一和第二电压的电压排序装置
    • US06661263B2
    • 2003-12-09
    • US09745413
    • 2000-12-26
    • Bruce W. RoseMichael A. StapletonJeffrey J. Olsen
    • Bruce W. RoseMichael A. StapletonJeffrey J. Olsen
    • H03K406
    • G06F1/26H02M2001/009
    • A voltage sequencer includes an input terminal and an output terminal and a control element connected between the input an output terminals. A capacitive element is connected between the output terminal and a first voltage and a resistive element is connected between the output terminal and a second voltage. The control element selectively controls charging and discharging of the capacitive element such that, upon the voltage at the input terminal increasing from the first voltage to a nominal value, the output terminal voltage increases to a nominal value in a first predetermined period of time and upon the voltage at the input terminal decreasing from the nominal value to the first voltage, the output terminal voltage decreases to the first voltage value in a second predetermined period of time, the first predetermined period of time being different from, for example, substantially greater than, the second predetermined period of time. The capacitive element may be a capacitor and the resistive element may be a resistor. The first voltage may be a ground potential while the second voltage may be a positive potential with respect to the first voltage.
    • 电压定序器包括输入端子和输出端子以及连接在输入端子之间的控制元件。 电容元件连接在输出端和第一电压之间,电阻元件连接在输出端和第二电压之间。 控制元件选择性地控制电容元件的充电和放电,使得当输入端子处的电压从第一电压增加到标称值时,输出端电压在第一预定时间段内增加到标称值,并且在 输入端子处的电压从标称值减小到第一电压,输出端子电压在第二预定时间段内降低到第一电压值,第一预定时间段不同于例如基本上大于 ,第二预定时间段。 电容元件可以是电容器,电阻元件可以是电阻器。 第一电压可以是接地电位,而第二电压可以是相对于第一电压的正电位。