公开(公告)号：US10312878B2

公开(公告)日：2019-06-04

申请号：US15609492

申请日：2017-05-31

Applicant: STMicroelectronics S.r.l.

Inventor： Angelo Scuderi ,  Gesualdo Alessi ,  Antonino Calcagno ,  Giorgio Maiellaro ,  Salvatore Scaccianoce

IPC: H03G3/34 ,  H03G3/30 ,  H03F3/19 ,  H03F3/21 ,  H03F1/02 ,  H03F1/30 ,  H03F3/189 ,  H03F3/45 ,  H03F3/72 ,  H03G1/00

Abstract: Systems and methods for switching on and off a power amplifier including a signal input receiving an input signal and a signal output providing an output signal. The power amplifier includes a control input receiving a gain control signal indicating a requested gain and a control input receiving a mute control signal indicating whether the signal output should be switched on or switched off. A control unit determines whether the signal output of the power amplifier should be switched on and/or off, and if switched on receives data identifying a switch-on ramp and if switched off receives data identifying a switch-off ramp. The control unit generates the mute control signal to switch on the signal output of the power amplifier on or off, and generates the gain control signal as a function of the data identifying the switch-on or switch-off ramp to thereby increase or decrease the gain control signal.

公开(公告)号：US20180152164A1

公开(公告)日：2018-05-31

申请号：US15609492

申请日：2017-05-31

Applicant: STMicroelectronics S.r.l.

Inventor： Angelo Scuderi ,  Gesualdo Alessi ,  Antonino Calcagno ,  Giorgio Maiellaro ,  Salvatore Scaccianoce

IPC: H03G3/34 ,  H03G3/30 ,  H03F3/19 ,  H03F3/21 ,  H03F1/02

CPC classification number: H03G3/34 ,  H03F1/0216 ,  H03F1/305 ,  H03F3/189 ,  H03F3/19 ,  H03F3/21 ,  H03F3/45475 ,  H03F3/72 ,  H03F2200/451 ,  H03F2203/7221 ,  H03G1/0023 ,  H03G3/3005 ,  H03G3/3042 ,  H03G3/3047

Abstract: Systems and methods for switching on and off a power amplifier including a signal input receiving an input signal and a signal output providing an output signal. The power amplifier includes a control input receiving a gain control signal indicating a requested gain and a control input receiving a mute control signal indicating whether the signal output should be switched on or switched off. A control unit determines whether the signal output of the power amplifier should be switched on and/or off, and if switched on receives data identifying a switch-on ramp and if switched off receives data identifying a switch-off ramp. The control unit generates the mute control signal to switch on the signal output of the power amplifier on or off, and generates the gain control signal as a function of the data identifying the switch-on or switch-off ramp to thereby increase or decrease the gain control signal.