公开(公告)号：WO2015199918A1

公开(公告)日：2015-12-30

申请号：PCT/US2015/033767

申请日：2015-06-02

Applicant: QUALCOMM INCORPORATED

Inventor： FAN, Xin ,  DHANASEKARAN, Vijayakumar

IPC: H03F1/02 ,  H03F1/32 ,  H03F3/185 ,  H03F3/30 ,  H03F1/08

CPC classification number: H03F1/32 ,  H03F1/0205 ,  H03F1/0266 ,  H03F1/086 ,  H03F1/3217 ,  H03F3/04 ,  H03F3/185 ,  H03F3/3023 ,  H03F2200/03 ,  H03F2200/18 ,  H03F2200/555 ,  H03F2201/3215 ,  H03F2203/30105 ,  H03F2203/45248

Abstract: The present disclosure amplifier circuits and methods having boosted slew rates. In one embodiment, an amplifier circuit comprises an output stage comprising a first output transistor, the first output transistor comprising a gate, a source, and a drain, wherein the gate receives a signal to be amplified. A bias circuit biases the gate of the first output transistor. A damping circuit is coupled the gate of the first output transistor and is configured to produce a high impedance at low frequencies and a low impedance at high frequencies. The damping circuit includes a current limit circuit to limit current to the gate of the first output transistor when a voltage on the gate of the first output transistor decreases in response to the signal.

Abstract translation: 本公开的放大器电路和方法具有升压转换速率。 在一个实施例中，放大器电路包括输出级，其包括第一输出晶体管，第一输出晶体管包括栅极，源极和漏极，其中栅极接收待放大的信号。 偏置电路偏置第一输出晶体管的栅极。 阻尼电路耦合第一输出晶体管的栅极，并被配置为在低频下产生高阻抗，在高频下产生低阻抗。 当第一输出晶体管的栅极上的电压响应于该信号而减小时，阻尼电路包括电流限制电路，以限制到第一输出晶体管的栅极的电流。

公开(公告)号：WO2021045837A1

公开(公告)日：2021-03-11

申请号：PCT/US2020/040149

申请日：2020-06-29

Applicant: QUALCOMM INCORPORATED

Inventor： D'SOUZA, Sandeep, Louis ,  WINEBRAND, Vadim ,  AHMED, Mohamed ,  AHMAD, Syed, Fawad ,  ALTMAN, Nathan, Felix ,  JALIL, Suhail ,  SONG, Livingstone ,  KUMAR, Raj ,  CHANDLER, David ,  ROHAM, Masoud ,  FAN, Xin ,  MATHE, Lennart, Karl-Axel ,  DJORDJEV, Kostadin, Dimitrov ,  BHATIA, Deep

IPC: G06F3/044 ,  G06F21/32 ,  G06K9/00 ,  G06F3/041 ,  G06F3/043

Abstract: Various aspects of the present disclosure generally relate to control of a user device under a wet condition. In some aspects, a user device may determine whether the user device is operating under a wet condition; select, based at least in part on whether the user device is operating under the wet condition, a set of input components to control the user device, wherein the set of input components is selected from a plurality of different sets of input components; and configure a user interface of the user device according to the set of input components. Numerous other aspects are provided.