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US5982162A Internal voltage generation circuit that down-converts external power supply voltage and semiconductor device generating internal power supply voltage on the basis of reference voltage 失效
内部电压产生电路，其根据参考电压对外部电源电压和半导体器件进行下变换，产生内部电源电压

Internal voltage generation circuit that down-converts external power supply voltage and semiconductor device generating internal power supply voltage on the basis of reference voltage
Abstract:
An internal voltage-down power supply circuit includes a voltage-down circuit, a comparator circuit (current mirror amplifier), and a current source control circuit. The comparator circuit (current mirror amplifier) includes a current source (NMOS). When an external power supply voltage is increased, the current source control circuit reduces a control voltage applied to the gate of the current source to reduce the current from the current source. When the temperature becomes lower, the current source control circuit reduces the control voltage applied to the gate of the current source to reduce the current from the current source. Therefore, the closed loop gain of the internal voltage-down power supply circuit can be suppressed from increasing, and unnecessary oscillation of the internal power supply voltage can be prevented even when the external power supply voltage is increased and the temperature during operation is low.
Abstract(Chinese):

内部降压电源电路包括降压电路，比较器电路（电流镜放大器）和电流源控制电路。 比较器电路（电流镜放大器）包括电流源（NMOS）。 当外部电源电压增加时，电流源控制电路减小施加到电流源的栅极的控制电压，以减小来自电流源的电流。 当温度降低时，电流源控制电路减小施加到电流源的栅极的控制电压，以减小来自电流源的电流。 因此，可以抑制内部降压电源电路的闭环增益的增加，并且即使当外部电源电压增加并且操作中的温度低时也可以防止内部电源电压的不必要的振荡。

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