公开(公告)号：US09948242B2

公开(公告)日：2018-04-17

申请号：US15226581

申请日：2016-08-02

Applicant: Apex Microtechnology, Inc.

Inventor： Alan Lee Varner ,  Gregory Michael Patchin ,  Kirby Neil Gaulin

IPC: H03F1/52 ,  H03F1/02 ,  H03F3/45

CPC classification number: H03F1/0233 ,  G05F3/26 ,  H03F3/45179 ,  H03F3/45278 ,  H03F3/45475 ,  H03F2200/555 ,  H03F2203/45022

Abstract: A selectable current limiter circuit to limit the current an amplifier with a load. The limiter circuit limits the current of an amplifier by comparing a voltage reference that follows the output swing of the amplifier to voltage drop across a current limiting resistor coupled to the output of the amplifier. The limiter circuits are operatively coupled to buffer and switch circuits that delay the current limiting until the limiter circuits are activated.

公开(公告)号：US10985713B2

公开(公告)日：2021-04-20

申请号：US16539733

申请日：2019-08-13

Applicant: Apex Microtechnology, Inc.

Inventor： Gregory Michael Patchin ,  Miroslav Vasic ,  Vladan Lazarevic ,  Jens Eltze ,  Kirby Neil Gaulin ,  Jesus Angel Oliver ,  Pedro Alou ,  Jose Antonio Cobos

IPC: H03F3/04 ,  H03F3/21 ,  H03F1/02

Abstract: Systems and methods are described for a power amplifier with a tracking power supply. The power amplifier may use envelope tracking. The power amplifier is protected when the output of the power amplifier is short circuited or overloaded.

公开(公告)号：US20200052662A1

公开(公告)日：2020-02-13

申请号：US16539733

申请日：2019-08-13

Applicant: Apex Microtechnology, Inc.

Inventor： Gregory Michael Patchin ,  Miroslav Vasic ,  Vladan Lazarevic ,  Jens Eltze ,  Kirby Neil Gaulin ,  Jesus Angel Oliver ,  Pedro Alou ,  Jose Antonio Cobos

IPC: H03F3/21 ,  H03F1/02

Abstract: Systems and methods are described for a power amplifier with a tracking power supply. The power amplifier may use envelope tracking. The power amplifier is protected when the output of the power amplifier is short circuited or overloaded.