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公开(公告)号：US10396771B2
公开(公告)日：2019-08-27
申请号：US15921513
申请日：2018-03-14
Applicant: MediaTek Inc.
Inventor： Chih-Chen Li , Kuan-Yu Fang , Kuan-Yu Chu , Yen-Hsun Hsu
Abstract: A voltage supply circuit is provided. The voltage supply circuit is capable of generating a loading current at an output node. The voltage supply circuit includes a plurality of inductors and a plurality of driver circuits. The plurality of inductors are coupled to the output node. Each inductor has an inductance value. The plurality of driver circuits are coupled to the plurality of inductors, respectively. The inductance values of at least two inductors among the plurality of inductors are greater than the inductance value of another inductor.
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公开(公告)号：US10326361B2
公开(公告)日：2019-06-18
申请号：US15907225
申请日：2018-02-27
Applicant: MediaTek Inc.
Inventor： Nien-Hui Kung , Chia-Hua Chou , Yen-Hsun Hsu
Abstract: A low dropout regulator that produces an output includes a comparison circuit, configured to compare a signal representative of the output and a reference signal to produce a comparison result. The low dropout regulator also includes a loop controller, coupled to the comparison circuit, configured to generate an output circuit control signal based at least in part on the comparison result. The low dropout regulator also includes an output circuit, comprising two or more output stages, configured to adjust a number of active output stages of the two or more output stages based on the output circuit control signal.
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公开(公告)号：US10211723B2
公开(公告)日：2019-02-19
申请号：US15334332
申请日：2016-10-26
Applicant: MEDIATEK Inc.
Inventor： Shan-Fong Hong , Chih-Chen Li , Kuan-Yu Chu , Chien-Wei Kuan , Yen-Hsun Hsu
Abstract: The invention provides a regulator for DC-DC hybrid-mode power regulation of an output voltage and a load current. The regulator may include a controller and a back-end circuit. The controller controls the output voltage and the load current by charging a connection node when a driving signal is at an on-level, and stopping charging the connection node when the driving signal is at an off-level. The back-end circuit is coupled to the controller, capable of switching between a first mode and a second mode to control transition of the driving signal by different schemes. The back-end circuit switches from the second mode to the first mode when a mode-switch criterion is satisfied, and whether the mode-switch criterion is satisfied is independent of a measurement of the output voltage.
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公开(公告)号：US20180205371A1
公开(公告)日：2018-07-19
申请号：US15921513
申请日：2018-03-14
Applicant: MediaTek Inc.
Inventor： Chih-Chen Li , Kuan-Yu Fang , Kuan-Yu Chu , Yen-Hsun Hsu
IPC: H03K17/00
CPC classification number: H03K17/005 , G06F1/30
Abstract: A voltage supply circuit is provided. The voltage supply circuit is capable of generating a loading current at an output node. The voltage supply circuit includes a plurality of inductors and a plurality of driver circuits. The plurality of inductors are coupled to the output node. Each inductor has an inductance value. The plurality of driver circuits are coupled to the plurality of inductors, respectively. The inductance values of at least two inductors among the plurality of inductors are greater than the inductance value of another inductor.
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公开(公告)号：US10211646B2
公开(公告)日：2019-02-19
申请号：US15889136
申请日：2018-02-05
Applicant: MediaTek Inc.
Inventor： Hung-Chih Lin , Yen-Hsun Hsu , Hao-Ping Hong
Abstract: A resonator circuit includes: a first inductive element and a second inductive element that is connected to the first inductive element in series; a first capacitive element, connected to a first end of the first inductive element and a first output end of the resonator circuit; and a set of second capacitive elements connected in series, the set of second capacitive elements having one end connected between the first and second inductive elements and having another end connected between the second inductive element and a second output end of the resonator circuit. The intermediate end of the set of second capacitive elements is used as a third output end of the resonator circuit.
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Patent Agency Ranking
公开(公告)号：US20180262105A1
公开(公告)日：2018-09-13
申请号：US15907225
申请日：2018-02-27
Applicant: MediaTek Inc.
Inventor： Nien-Hui Kung , Chia-Hua Chou , Yen-Hsun Hsu
Abstract: A low dropout regulator that produces an output includes a comparison circuit, configured to compare a signal representative of the output and a reference signal to produce a comparison result. The low dropout regulator also includes a loop controller, coupled to the comparison circuit, configured to generate an output circuit control signal based at least in part on the comparison result. The low dropout regulator also includes an output circuit, comprising two or more output stages, configured to adjust a number of active output stages of the two or more output stages based on the output circuit control signal.
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7.发明申请公开(公告)号：US20150214748A1
公开(公告)日：2015-07-30
申请号：US14602280
申请日：2015-01-22
Applicant: MEDIATEK INC.
Inventor： Hung-Chih Lin , Pi-Fen Chen , Yen-Hsun Hsu
CPC classification number: H02J50/80 , H02J5/005 , H02J7/025 , H02J17/00 , H02J50/05 , H02J50/10 , H02J50/12
Abstract: A wireless power supplying system includes a wireless power transmitter and a portable electronic device. The wireless power transmitter is arranged for supplying an output power via wireless communication. The portable electronic device is electrically coupled to the wireless power transmitter and used for transmitting at least one of voltage/current/power information associated with the portable electronic device from the portable electronic device back to the wireless power transmitter, so as to make the wireless power transmitter adjust and supply the output power according to the at least one of voltage/current/power information associated with the portable electronic device.
Abstract translation: 无线供电系统包括无线电力发射器和便携式电子设备。 无线电力发射器被布置用于通过无线通信提供输出电力。 便携式电子设备电耦合到无线电力发射机，并用于将与便携式电子设备相关联的电压/电流/电力信息中的至少一个从便携式电子设备发送回无线电力发射机，以便使无线 功率发射器根据与便携式电子设备相关联的电压/电流/功率信息中的至少一个来调节和提供输出功率。
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公开(公告)号：US09071200B2
公开(公告)日：2015-06-30
申请号：US14336137
申请日：2014-07-21
Applicant: MediaTek Inc.
Inventor： Chun-Yen Tseng , Yen-Hsun Hsu
CPC classification number: H03F3/195 , H03F1/0227 , H03F3/21 , H03F2200/102 , H03F2200/451 , H03F2200/504
Abstract: A power module at least includes an ET (Envelope Tracking) module. The ET module includes a buck converter, an inductor, and a capacitor. The buck converter is coupled to a work voltage. The buck converter has a first input terminal for receiving a first control signal, a second input terminal coupled to a supply node, and a buck output terminal The inductor is coupled between the buck output terminal of the buck converter and the supply node. The capacitor is coupled between the supply node and a ground voltage. The ET module is configured to supply a first adaptive supply voltage at the supply node. The first adaptive supply voltage is determined according to the first control signal.
Abstract translation: 电源模块至少包括ET（信封跟踪）模块。 ET模块包括降压转换器，电感器和电容器。 降压转换器耦合到工作电压。 降压转换器具有用于接收第一控制信号的第一输入端子，耦合到电源节点的第二输入端子和降压输出端子。电感器耦合在降压转换器的降压输出端子和电源节点之间。 电容器耦合在电源节点和接地电压之间。 ET模块被配置为在供应节点处提供第一自适应电源电压。 第一自适应电源电压根据第一控制信号确定。
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公开(公告)号：US10389344B2
公开(公告)日：2019-08-20
申请号：US15038588
申请日：2015-01-14
Applicant: MediaTek Inc.
Inventor： Chien-Wei Kuan , Yen-Hsun Hsu , Tun-Shih Chen
Abstract: A voltage supply circuit is provided. The voltage supply circuit is capable of operating at a first mode and generates a loading current at an output node. The voltage supply circuit includes a plurality of inductors and a plurality of drier circuits. The plurality of inductors are coupled to the output node. Each inductor has an inductance value. The plurality driver circuits are coupled to the plurality of inductors respectively. The inductance value of a first inductor among the plurality of inductors is greater than the inductance values of the other inductor.
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公开(公告)号：US20190089252A1
公开(公告)日：2019-03-21
申请号：US15962910
申请日：2018-04-25
Applicant: MediaTek Inc.
Inventor： Chih-Chen Li , Yen-Hsun Hsu , Tzu-Chi Huang
Abstract: A high efficiency converter is provided. The converter can be used in applications requiring fast transient response under a first loading condition, and high efficiency under a second loading condition. The converter converts one or more input voltages via two or more conversion paths. Each of the two or more conversion paths corresponds to a different loading condition which indicates a magnitude of a load driven by the converter (e.g., heavy or light), and a target transient response of the load (e.g., fast or slow). A conversion path for a heavy or fast loading condition converts an input voltage directly to a target output voltage. A conversion path for a light or slow loading condition includes a two-stage architecture.
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