公开(公告)号：US11588451B2

公开(公告)日：2023-02-21

申请号：US16964532

申请日：2019-01-25

Applicant: SYSTEM CERAMICS S.P.A.

Inventor： Giovanni Migliazza ,  Luca Larcher ,  Emilio Lorenzani

IPC: H03F1/02 ,  H03F3/217 ,  B41J2/045 ,  G01R19/165 ,  G05F1/46 ,  H03F1/32 ,  H03F3/21

Abstract: It is disclosed an amplifier for driving a capacitive load, comprising an input terminal adapted to receive an input voltage signal, an output terminal adapted to drive the capacitive load, a linear amplification stage, switching amplification stage, a capacitor, a first switch and a measurement and control circuit. The measurement and control circuit is configured to: measure the value of the current generated at the output from the linear amplification stage and generate a driving voltage signal of the switching amplification stage; generate the first switching signal to open the first switch and generate an enabling signal to enable the operation of at least part of the switching amplification stage; generate the first switching signal to close the first switch and generate the enabling signal to disable the operation of the switching amplification stage; generate the first switching signal to open the first switch.

公开(公告)号：US20210036668A1

公开(公告)日：2021-02-04

申请号：US16964532

申请日：2019-01-25

Applicant: SYSTEM CERAMICS S.P.A.

Inventor： Giovanni Migliazza ,  Luca Larcher ,  Emilio Lorenzani

IPC: H03F3/217 ,  H03F3/21 ,  B41J2/045 ,  H03F1/32 ,  H03F1/02 ,  G01R19/165 ,  G05F1/46

Abstract: It is disclosed an amplifier for driving a capacitive load, comprising an input terminal adapted to receive an input voltage signal, an output terminal adapted to drive the capacitive load, a linear amplification stage, switching amplification stage, a capacitor, a first switch and a measurement and control circuit. The measurement and control circuit is configured to: measure the value of the current generated at the output from the linear amplification stage and generate a driving voltage signal of the switching amplification stage; generate the first switching signal to open the first switch and generate an enabling signal to enable the operation of at least part of the switching amplification stage; generate the first switching signal to close the first switch and generate the enabling signal to disable the operation of the switching amplification stage; generate the first switching signal to open the first switch.