公开(公告)号：US10763803B2

公开(公告)日：2020-09-01

申请号：US16269289

申请日：2019-02-06

Applicant: STMicroelectronics S.r.l.

Inventor： Edoardo Botti ,  Tommaso Barbieri ,  Davide Luigi Brambilla ,  Cristiano Meroni

IPC: H03F3/217 ,  H03K17/687 ,  H03K3/017 ,  H04R3/00 ,  G05F1/575 ,  H03F1/02 ,  H02M3/158 ,  H02M3/00 ,  H03F3/187 ,  H02M1/00

Abstract: An integrated circuit includes a die that includes a circuit configured to generate a PWM signal in response to a first clock signal, and a first set of pads configured to provide amplified PWM signals to external filters. An amplifier stage is configured to provide the amplified PWM signals. The die includes two pads configured to be coupled to an external inductor, and a second set of pads configured to provide regulated voltages. An electronic converter circuit is configured to generate the regulated voltages to supply the amplifier stage. The electronic converter circuit includes a control circuit configured to drive electronic switches in response to a second clock signal to regulate the regulated voltages to a respective target value. The die includes a control block to synchronize the switching activity of the electronic switches with the switching activity of the amplifier stage.

公开(公告)号：US20190245498A1

公开(公告)日：2019-08-08

申请号：US16269289

申请日：2019-02-06

Applicant: STMicroelectronics S.r.l.

Inventor： Edoardo Botti ,  Tommaso Barbieri ,  Davide Luigi Brambilla ,  Cristiano Meroni

IPC: H03F3/217 ,  H03K17/687 ,  H03K3/017 ,  H04R3/00

Abstract: An integrated circuit includes a die that includes a circuit configured to generate a PWM signal in response to a first clock signal, and a first set of pads configured to provide amplified PWM signals to external filters. An amplifier stage is configured to provide the amplified PWM signals. The die includes two pads configured to be coupled to an external inductor, and a second set of pads configured to provide regulated voltages. An electronic converter circuit is configured to generate the regulated voltages to supply the amplifier stage. The electronic converter circuit includes a control circuit configured to drive electronic switches in response to a second clock signal to regulate the regulated voltages to a respective target value. The die includes a control block to synchronize the switching activity of the electronic switches with the switching activity of the amplifier stage.

公开(公告)号：US11245369B2

公开(公告)日：2022-02-08

申请号：US16935649

申请日：2020-07-22

Applicant: STMicroelectronics S.r.l.

Inventor： Edoardo Botti ,  Tommaso Barbieri ,  Davide Luigi Brambilla ,  Cristiano Meroni

IPC: H03F3/217 ,  H03K17/687 ,  H03K3/017 ,  H04R3/00 ,  G05F1/575 ,  H03F1/02 ,  H02M3/158 ,  H02M3/00 ,  H03F3/187 ,  H02M1/00

Abstract: An integrated circuit includes a die that includes a circuit configured to generate a PWM signal in response to a first clock signal, and a first set of pads configured to provide amplified PWM signals to external filters. An amplifier stage is configured to provide the amplified PWM signals. The die includes two pads configured to be coupled to an external inductor, and a second set of pads configured to provide regulated voltages. An electronic converter circuit is configured to generate the regulated voltages to supply the amplifier stage. The electronic converter circuit includes a control circuit configured to drive electronic switches in response to a second clock signal to regulate the regulated voltages to a respective target value. The die includes a control block to synchronize the switching activity of the electronic switches with the switching activity of the amplifier stage.

公开(公告)号：US20200350877A1

公开(公告)日：2020-11-05

申请号：US16935649

申请日：2020-07-22

Applicant: STMicroelectronics S.r.l.

Inventor： Edoardo Botti ,  Tommaso Barbieri ,  Davide Luigi Brambilla ,  Cristiano Meroni

IPC: H03F3/217 ,  H03K17/687 ,  H03K3/017 ,  H04R3/00 ,  G05F1/575 ,  H03F1/02 ,  H02M3/158 ,  H02M3/00 ,  H03F3/187

Abstract: An integrated circuit includes a die that includes a circuit configured to generate a PWM signal in response to a first clock signal, and a first set of pads configured to provide amplified PWM signals to external filters. An amplifier stage is configured to provide the amplified PWM signals. The die includes two pads configured to be coupled to an external inductor, and a second set of pads configured to provide regulated voltages. An electronic converter circuit is configured to generate the regulated voltages to supply the amplifier stage. The electronic converter circuit includes a control circuit configured to drive electronic switches in response to a second clock signal to regulate the regulated voltages to a respective target value. The die includes a control block to synchronize the switching activity of the electronic switches with the switching activity of the amplifier stage.