公开(公告)号：US20150109064A1

公开(公告)日：2015-04-23

申请号：US14493554

申请日：2014-09-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qing Min ,  Jiale Huang ,  Nianyong Zhu

IPC: H03L5/00

CPC classification number: H03L5/00 ,  H03B5/10 ,  H03L7/099

Abstract: The present invention provides an automatic amplitude control circuit, including an oscillator, a collecting module, a first analog current generating module, a second analog current generating module, and a numerical control current generating module. According to this automatic amplitude control circuit, a low-noise numerical control bias current can be provided for the oscillator.

Abstract translation: 本发明提供一种自动幅度控制电路，包括振荡器，收集模块，第一模拟电流产生模块，第二模拟电流产生模块和数字电流产生模块。 根据该自动幅度控制电路，可以为振荡器提供低噪声数字控制偏置电流。

公开(公告)号：US09225341B2

公开(公告)日：2015-12-29

申请号：US14493554

申请日：2014-09-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qing Min ,  Jiale Huang ,  Nianyong Zhu

IPC: H03L5/00 ,  H03L7/099 ,  H03B5/10

CPC classification number: H03L5/00 ,  H03B5/10 ,  H03L7/099

Abstract: The present invention provides an automatic amplitude control circuit, including an oscillator, a collecting module, a first analog current generating module, a second analog current generating module, and a numerical control current generating module. According to this automatic amplitude control circuit, a low-noise numerical control bias current can be provided for the oscillator.

Abstract translation: 本发明提供一种自动幅度控制电路，包括振荡器，收集模块，第一模拟电流产生模块，第二模拟电流产生模块和数字电流产生模块。 根据该自动幅度控制电路，可以为振荡器提供低噪声数字控制偏置电流。

公开(公告)号：US11843351B2

公开(公告)日：2023-12-12

申请号：US17883164

申请日：2022-08-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jichao Huang ,  Qing Min ,  Lei Lu

IPC: H03B5/12

CPC classification number: H03B5/12 ,  H03B2200/0026

Abstract: The present disclosure relates to integrated circuits. One example integrated circuit includes a first resonant circuit, a second resonant circuit, and at least one connection circuit. The first resonant circuit includes a first inductor, and the second resonant circuit includes a second inductor. The first inductor includes a first port, and the second inductor includes a second port. The at least one connection circuit is connected between the first port and the second port. The at least one connection circuit provides an electrical connection between the first port and the second port.

公开(公告)号：US11601129B2

公开(公告)日：2023-03-07

申请号：US17510110

申请日：2021-10-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Na Guo ,  Qing Min

IPC: H03L7/089 ,  H03L7/093 ,  H03L7/099

Abstract: One example charge pump is provided. The example charge pump includes a degeneration circuit, a charging current source transistor, a switch circuit and a discharging current source transistor. The charging current source transistor provides a charging current. The degeneration circuit is coupled between a first terminal of the charging current source transistor and a power supply terminal. The degeneration circuit degrades a first voltage corresponding to the power supply terminal to a second voltage. The switch circuit is coupled between a second terminal of the charging current source transistor and a load. The switch circuit controls a charging current output to the load.

公开(公告)号：US11989049B2

公开(公告)日：2024-05-21

申请号：US17487214

申请日：2021-09-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jichao Huang ,  Qing Min ,  Lei Lu

IPC: G06F1/08 ,  H03B5/12 ,  H03L7/099 ,  H03L7/187

CPC classification number: G06F1/08 ,  H03B5/1228 ,  H03L7/0991 ,  H03L7/187

Abstract: An oscillator and a clock circuit are disclosed. In an oscillator (100), a tail inductor connected to a cross-coupled transistor includes at least two inductors connected in parallel. Therefore, an inductance of the tail inductor is less than an inductance of any one of the inductors. This can address a design difficulty that a tail inductor with a smaller inductance needs to be used as an operating frequency of a VCO increases. The oscillator (100) includes a first cross-coupled transistor (121) and a first tail inductor (111). The first tail inductor (111) includes at least two inductors connected in parallel. The first tail inductor (111) is coupled to a source of the first cross-coupled transistor (121). The source of the first cross-coupled transistor (121) is coupled to a power supply or a ground through the first tail inductor (111).

公开(公告)号：US11444572B2

公开(公告)日：2022-09-13

申请号：US17336967

申请日：2021-06-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jichao Huang ,  Qing Min ,  Lei Lu

IPC: H03B5/12

Abstract: The present disclosure relates to integrated circuits. One example integrated circuit includes a first resonant circuit, a second resonant circuit, and at least one connection circuit. The first resonant circuit includes a first inductor, and the second resonant circuit includes a second inductor. The first inductor includes a first port and a second port, and the second inductor includes a third port and a fourth port. The at least one connection circuit is connected between at least one of the first port and the second port and at least one of the third port and the fourth port. Each connection circuit of the at least one connection circuit provides an electrical connection between two ports, where each of the two ports is connected to the connection circuit.