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CN105511537B 用于调节电子设备的启动和操作电压的电路 有权

用于调节电子设备的启动和操作电压的电路
摘要：
提供了用于调节电子设备的启动和操作电压的电路。电子设备包括电源、接地和具有低于电源电压并且高于接地电压的电压的中间接地。电子设备还包括误差放大器，误差放大器具有耦合在电源和接地之间的输入级以及耦合在电源和中间接地之间的输出级。镇流器晶体管耦合为接收来自误差放大器的输出。反馈电路耦合到镇流器晶体管的输出以生成反馈信号，并且误差放大器响应于反馈信号进行操作。
摘要（英）：

An electronic device includes a power supply, a ground, and an intermediate ground having a voltage less than a voltage of the power supply and greater than a voltage of the ground. The electronic device also includes an error amplifier having an input stage coupled between the power supply and the ground, and an output stage coupled between the power supply and the intermediate ground. A ballast transistor is coupled to receive an output from the error amplifier. A feedback circuit is coupled to an output of the ballast transistor to generate feedback signals, and the error amplifier operates in response to the feedback signals.

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