公开(公告)号：US20170060156A1

公开(公告)日：2017-03-02

申请号：US15212204

申请日：2016-07-16

Applicant: STMicroelectronics S.r.I.

Inventor： Nicola Rogledi ,  Paolo Vilmercati

IPC: G05F1/575

CPC classification number: G05F1/575 ,  G05F1/46

Abstract: A track regulator circuit includes an input terminal for receiving an input signal, an output stage with an output terminal for applying an output signal to a load, an error amplifier coupled to the input terminal, and a feedback resistor between the output terminal and the error amplifier for transferring to the error amplifier a feedback signal indicative of the output signal. The error amplifier is configured for driving the output stage as a function of the difference between the input signal and the output signal so that the output signal tracks the input signal. The circuit includes a current generator coupled to the feedback resistor for injecting into the feedback resistor a soft-start current to unbalance the error amplifier, with the intensity of the soft-start current gradually ramping down to zero.

Abstract translation: 轨道调节器电路包括用于接收输入信号的输入端子，具有用于向负载施加输出信号的输出端子的输出级，耦合到输入端子的误差放大器以及输出端子与误差之间的反馈电阻器 放大器，用于将表示输出信号的反馈信号传送到误差放大器。 误差放大器被配置为根据输入信号和输出信号之间的差异来驱动输出级，使得输出信号跟踪输入信号。 该电路包括耦合到反馈电阻器的电流发生器，用于向反馈电阻器注入软启动电流以使误差放大器不平衡，软启动电流的强度逐渐下降到零。