公开(公告)号：US10763668B2

公开(公告)日：2020-09-01

申请号：US16103683

申请日：2018-08-14

Applicant: MediaTek Inc.

Inventor： Hua-Chiang Huang ,  Chih-Chen Li

IPC: H02J1/10 ,  H02M3/158 ,  H02M3/156 ,  H02J3/34

Abstract: A converter is provided. The converter is capable of generating a loading current at an output node. The converter includes a high efficiency power channel and a fast transient response channel. The high efficiency power channel and the fast transient response channel share an inductor that is coupled to the output node. The high efficiency power channel has an additional inductor that is connected in series with the inductor coupled to the output node.

公开(公告)号：US20170025952A1

公开(公告)日：2017-01-26

申请号：US15009806

申请日：2016-01-28

Applicant: MEDIATEK INC.

Inventor： Hua-Chiang Huang

IPC: H02M3/158 ,  G01R19/165

CPC classification number: H02M3/158 ,  G01R19/16585 ,  H02M3/156 ,  H02M2001/0025 ,  H02M2001/0045 ,  H02M2001/0067 ,  H02M2003/1566

Abstract: A constant on-time pulse width control-based apparatus capable of detecting a transient event of a voltage converter includes a specific comparator, a logic circuit, and a controller. The specific comparator generates a logic control signal to the logic circuit according to two resultant signals of the controller. The logic circuit generates a pulse control signal with an on-time pulse width to charge an output capacitor according to the logic control signal. The controller generates the two resultant signals to the specific comparator by generating a voltage ramp signal and amplifying an output voltage ripple signal based on a reference voltage, and detects the transient event to dynamically adjust the on-time pulse width of the pulse control signal according to the amplified output voltage ripple signal.

Abstract translation: 能够检测电压转换器的瞬态事件的恒定导通时脉冲宽度控制装置包括特定比较器，逻辑电路和控制器。 特定比较器根据控制器的两个合成信号产生逻辑电路的逻辑控制信号。 逻辑电路产生具有导通时间脉冲宽度的脉冲控制信号，以根据逻辑控制信号对输出电容器充电。 控制器通过产生电压斜坡信号并基于参考电压放大输出电压纹波信号，产生两个结果信号到特定比较器，并且根据参考电压检测瞬态事件以动态地调节脉冲控制信号的接通时间脉冲宽度 到放大的输出电压纹波信号。

公开(公告)号：US20160301307A1

公开(公告)日：2016-10-13

申请号：US15007228

申请日：2016-01-27

Applicant: MEDIATEK INC.

Inventor： Hua-Chiang Huang

IPC: H02M3/158 ,  H02M1/08

CPC classification number: H02M3/158 ,  H02M1/08 ,  H02M3/156 ,  H02M2001/0009

Abstract: A constant on-time pulse width control-based apparatus used in a voltage converter includes a comparator, a logic circuit, and a controller. The comparator is configured for generating a logic control signal to a logic circuit according to two resultant signals of the controller. The logic circuit is configured for generating a pulse control signal with an on-time pulse width to charge an output capacitor of an output stage circuit of the voltage converter according to the logic control signal. The controller is configured for generating the two resultant signals to the comparator by detecting an inductor current signal from an inductor of the output stage circuit, generating a voltage ramp signal, amplifying and generating an output voltage ripple signal based on a reference voltage.

Abstract translation: 在电压转换器中使用的基于恒定导通时间脉冲宽度控制的装置包括比较器，逻辑电路和控制器。 比较器被配置为根据控制器的两个合成信号产生到逻辑电路的逻辑控制信号。 逻辑电路被配置为产生具有导通时间脉冲宽度的脉冲控制信号，以根据逻辑控制信号对电压转换器的输出级电路的输出电容器充电。 控制器被配置为通过检测来自输出级电路的电感器的电感器电流信号，产生两个结果信号给比较器，产生电压斜坡信号，基于参考电压放大并产生输出电压纹波信号。

公开(公告)号：US20190131789A1

公开(公告)日：2019-05-02

申请号：US16103683

申请日：2018-08-14

Applicant: MediaTek Inc.

Inventor： Hua-Chiang Huang ,  Chih-Chen Li

IPC: H02J1/10 ,  H02J3/34 ,  H02M3/158

Abstract: A converter is provided. The converter is capable of generating a loading current at an output node. The converter includes a high efficiency power channel and a fast transient response channel. The high efficiency power channel and the fast transient response channel share an inductor that is coupled to the output node. The high efficiency power channel has an additional inductor that is connected in series with the inductor coupled to the output node.

公开(公告)号：US09831774B2

公开(公告)日：2017-11-28

申请号：US15007228

申请日：2016-01-27

Applicant: MEDIATEK INC.

Inventor： Hua-Chiang Huang

IPC: H02M3/158 ,  H02M3/156 ,  H02M1/08 ,  H02M1/00

CPC classification number: H02M3/158 ,  H02M1/08 ,  H02M3/156 ,  H02M2001/0009

Abstract: A constant on-time pulse width control-based apparatus used in a voltage converter includes a comparator, a logic circuit, and a controller. The comparator is configured for generating a logic control signal to a logic circuit according to two resultant signals of the controller. The logic circuit is configured for generating a pulse control signal with an on-time pulse width to charge an output capacitor of an output stage circuit of the voltage converter according to the logic control signal. The controller is configured for generating the two resultant signals to the comparator by detecting an inductor current signal from an inductor of the output stage circuit, generating a voltage ramp signal, amplifying and generating an output voltage ripple signal based on a reference voltage.

公开(公告)号：US09735680B2

公开(公告)日：2017-08-15

申请号：US15009806

申请日：2016-01-28

Applicant: MEDIATEK INC.

Inventor： Hua-Chiang Huang

IPC: H02M3/158 ,  H02M3/156 ,  G01R19/165 ,  H02M1/00

CPC classification number: H02M3/158 ,  G01R19/16585 ,  H02M3/156 ,  H02M2001/0025 ,  H02M2001/0045 ,  H02M2001/0067 ,  H02M2003/1566

Abstract: A constant on-time pulse width control-based apparatus capable of detecting a transient event of a voltage converter includes a specific comparator, a logic circuit, and a controller. The specific comparator generates a logic control signal to the logic circuit according to two resultant signals of the controller. The logic circuit generates a pulse control signal with an on-time pulse width to charge an output capacitor according to the logic control signal. The controller generates the two resultant signals to the specific comparator by generating a voltage ramp signal and amplifying an output voltage ripple signal based on a reference voltage, and detects the transient event to dynamically adjust the on-time pulse width of the pulse control signal according to the amplified output voltage ripple signal.