公开(公告)号：US20150279467A1

公开(公告)日：2015-10-01

申请号：US14640236

申请日：2015-03-06

Applicant: STMICROELECTRONICS S.r.I.

Inventor： Antonino CONTE ,  Maria Giaquinta

IPC: G11C16/04 ,  H03F3/16 ,  G11C16/26 ,  H03K3/012 ,  G11C16/10 ,  H03F1/02 ,  H03K3/353

CPC classification number: G11C16/0408 ,  G11C16/10 ,  G11C16/12 ,  G11C16/26 ,  G11C29/021 ,  G11C29/028 ,  H03F1/0205 ,  H03F1/086 ,  H03F1/14 ,  H03F3/16 ,  H03F3/45183 ,  H03F3/45475 ,  H03F2200/129 ,  H03F2200/153 ,  H03F2200/45 ,  H03F2200/516 ,  H03F2203/45138 ,  H03F2203/45364 ,  H03F2203/45511 ,  H03F2203/45512 ,  H03K3/012 ,  H03K3/353

Abstract: An input signal is amplified into an output signal that is to be applied to an electrical load including a capacitive component. An amplifier stage includes a pre-amplifier module to receive a first supply voltage, and an output module to receive a second supply voltage. The pre-amplifier module includes a first gain block to pre-amplify the input signal into a first pre-amplified signal, and a second gain block to pre-amplify the input signal into a second pre-amplified signal. A feedback block feeds back the output signal as a feedback signal. A combination element combines the first pre-amplified signal and the feedback signal into a combined signal. The output module combines the combined signal and the second pre-amplified signal into the output signal.

Abstract translation: 输入信号被放大为要施加到包括电容分量的电负载的输出信号。 放大器级包括用于接收第一电源电压的前置放大器模块和用于接收第二电源电压的输出模块。 前置放大器模块包括用于将输入信号预放大成第一预放大信号的第一增益模块和将输入信号预放大成第二预放大信号的第二增益模块。 反馈块反馈输出信号作为反馈信号。 组合元件将第一预放大信号和反馈信号组合成组合信号。 输出模块将组合信号和第二预放大信号组合成输出信号。