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1. 发明授权

US09058048B2 Voltage regulator having error amplifier 有权
标题翻译：具有误差放大器的电压调节器
公开(公告)号：US09058048B2
公开(公告)日：2015-06-16
申请号：US13789541
申请日：2013-03-07
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Hansen Teong , Masayoshi Takahashi , Hirokazu Kadowaki , Masatoshi Watanabe , Kenji Kanamaru
IPC分类号： H02M3/156 , G05F1/46 , G05F1/565 , G05F1/575
CPC分类号： G05F1/46 , G05F1/565 , G05F1/575
摘要： According to an embodiment, a voltage regulator having an output transistor, a voltage dividing circuit, an error amplifier, a detection circuit and a phase compensation capacitance circuit is provided. The output transistor has one end to which a power supply voltage is supplied, a control terminal to which a control signal is input, and the other end which outputs an output voltage. The voltage dividing circuit is connected between the other end of the output transistor and a first reference voltage. The error amplifier is configured to output the control signal according to the difference between a divided voltage and a second reference voltage. The detection circuit is configured to detect an operation environment. The phase compensation capacitance circuit is configured to adjust a phase compensation capacitance between the other end of the output transistor and an input terminal of the error amplifier, in accordance with the detected operation environment.
摘要翻译：根据实施例，提供具有输出晶体管，分压电路，误差放大器，检测电路和相位补偿电容电路的电压调节器。输出晶体管具有提供电源电压的一端，输入控制信号的控制端子和输出输出电压的另一端。分压电路连接在输出晶体管的另一端和第一参考电压之间。误差放大器被配置为根据分压和第二参考电压之间的差输出控制信号。检测电路被配置为检测操作环境。相位补偿电容电路被配置为根据检测到的操作环境来调整输出晶体管的另一端和误差放大器的输入端之间的相位补偿电容。

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