公开(公告)号：US09473089B2

公开(公告)日：2016-10-18

申请号：US14272615

申请日：2014-05-08

Applicant: MediaTek Inc.

Inventor： Hao-Ping Hong ,  Hung-I Wang ,  Chun-Yen Tseng ,  Yen-Hsun Hsu

IPC: H03F3/04 ,  H03F3/24 ,  H03F1/02 ,  H03F3/19 ,  H03F3/21 ,  H03F1/30

CPC classification number: H03F3/245 ,  H03F1/0227 ,  H03F1/0238 ,  H03F1/30 ,  H03F3/19 ,  H03F3/21 ,  H03F2200/102 ,  H03F2200/432 ,  H03F2200/451 ,  H03F2200/459

Abstract: A hybrid power module for supplying a power to a power amplifier is provided. The hybrid power module includes a DC-DC converter and a linear regulator. The DC-DC converter provides a first current to the power amplifier via a first inductor according to an operating frequency and an envelope tracking signal. The linear regulator provides a second current to the power amplifier via a first capacitor according to the envelope tracking signal. A switch-mode power supply (SMPS) ripple voltage caused by the DC-DC converter is reduced by the linear regulator.

Abstract translation: 提供了一种用于向功率放大器供电的混合电源模块。 混合电源模块包括一个DC-DC转换器和一个线性稳压器。 DC-DC转换器根据工作频率和包络跟踪信号，经由第一电感器向功率放大器提供第一电流。 线性调节器根据包络跟踪信号经由第一电容器向功率放大器提供第二电流。 由DC-DC转换器引起的开关电源（SMPS）纹波电压由线性稳压器降低。

公开(公告)号：US20160211691A1

公开(公告)日：2016-07-21

申请号：US15084488

申请日：2016-03-30

Applicant: MEDIATEK INC.

Inventor： Pi-Fen Chen ,  Chih-Yuan Hsu ,  Hung-I Wang

IPC: H02J7/00

CPC classification number: H02J7/0068 ,  B08B3/022 ,  B08B13/00 ,  B65D19/385 ,  F26B3/08 ,  F26B3/0923 ,  H02J7/0081 ,  H02J2007/0096

Abstract: A method and an apparatus for performing charging port detection control are provided, where the method is applied to an electronic device, a communication port of the electronic device has a functionality of obtaining power from an external power source for the electronic device, and a power path switching unit of the electronic device is arranged to control electrical connection between a system within the electronic device and a battery of the electronic device. The method may include the steps of: performing charging port detection; and control operation(s) according to the charging port detection. For example, the method may include: controlling the power path switching unit to have different configuration according to the charging port detection in order to charge the battery with different charging profiles; and detecting the system voltage level during charging for switching from the constant current mode to the constant voltage mode.

公开(公告)号：US09859737B2

公开(公告)日：2018-01-02

申请号：US15084488

申请日：2016-03-30

Applicant: MEDIATEK INC.

Inventor： Pi-Fen Chen ,  Chih-Yuan Hsu ,  Hung-I Wang

IPC: H02J7/00 ,  B08B3/02 ,  B08B13/00 ,  F26B3/08 ,  F26B3/092

CPC classification number: H02J7/0068 ,  B08B3/022 ,  B08B13/00 ,  B65D19/385 ,  F26B3/08 ,  F26B3/0923 ,  H02J7/0081 ,  H02J2007/0096

Abstract: A method and an apparatus for performing charging port detection control are provided, where the method is applied to an electronic device, a communication port of the electronic device has a functionality of obtaining power from an external power source for the electronic device, and a power path switching unit of the electronic device is arranged to control electrical connection between a system within the electronic device and a battery of the electronic device. The method may include the steps of: performing charging port detection; and control operation(s) according to the charging port detection. For example, the method may include: controlling the power path switching unit to have different configuration according to the charging port detection in order to charge the battery with different charging profiles; and detecting the system voltage level during charging for switching from the constant current mode to the constant voltage mode.

公开(公告)号：US09559583B2

公开(公告)日：2017-01-31

申请号：US14153405

申请日：2014-01-13

Applicant: MediaTek Inc.

Inventor： Hung-chih Lin ,  Hung-I Wang ,  Hao-Ping Hong ,  Chien-Wei Kuan ,  Yung-Chih Yen

IPC: H02M7/539 ,  H02M3/156

CPC classification number: H02M3/156 ,  H02M3/1563

Abstract: A power converter includes a wave generator, a low pass filter, a first control circuit, and a second control circuit. The wave generator receives an input voltage, and converts the input signal into a wave signal according to a first control signal and a second control signal. The low pass filter filters the wave signal to generate an output voltage. The first control circuit generates the first control signal according to the wave signal and the output voltage. The second control circuit generates the second control signal according to the wave signal and the output voltage.

Abstract translation: 功率转换器包括波发生器，低通滤波器，第一控制电路和第二控制电路。 波发生器接收输入电压，并根据第一控制信号和第二控制信号将输入信号转换成波信号。 低通滤波器对波形信号进行滤波以产生输出电压。 第一控制电路根据波信号和输出电压产生第一控制信号。 第二控制电路根据波信号和输出电压产生第二控制信号。