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公开(公告)号：US20180054121A1
公开(公告)日：2018-02-22
申请号：US15461559
申请日：2017-03-17
Applicant: MEDIATEK Inc.
Inventor： Tso-Min Chen , Chien-Wei Kuan , Yen-Hsun Hsu
CPC classification number: H02M3/158 , H02M1/08 , H02M2001/0009 , H02M2001/0048 , H02M2001/0058
Abstract: A power conversion circuit includes an input terminal, a first switching element, a second switching element, a third switching element, a fourth switching element, a capacitor; an inductor; and a controller configured to control the switching elements to be switched ON/OFF, such that a voltage at the load is regulated by repetitively (1) charging the inductor with a first current before charging the capacitor causing a second current to flow in the inductor and (2) charging the inductor with a third current before discharging the capacitor causing a fourth current to flow in the inductor.
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公开(公告)号：US20170310211A1
公开(公告)日：2017-10-26
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
CPC classification number: H02M3/04 , H02M1/08 , H02M3/156 , H02M2001/0032 , Y02B70/16
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：US20160204619A1
公开(公告)日：2016-07-14
申请号：US14821816
申请日：2015-08-10
Applicant: MEDIATEK INC.
Inventor： Hung-Chih Lin , Yen-Hsun Hsu , Hao-Ping Hong
CPC classification number: H02J5/005 , H01F38/14 , H01F2038/146
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 capacitive elements and having another end connected between the second capacitive 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.
Abstract translation: 谐振器电路包括：串联连接到第一电感元件的第一电感元件和第二电感元件; 第一电容元件，连接到第一电感元件的第一端和谐振器电路的第一输出端; 以及一组串联连接的第二电容元件，该组第二电容元件的一端连接在第一和第二电容元件之间，另一端连接在第二电容元件和谐振器电路的第二输出端之间。 该组第二电容元件的中间端用作谐振器电路的第三输出端。
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公开(公告)号：US10444779B2
公开(公告)日：2019-10-15
申请号：US15730877
申请日：2017-10-12
Applicant: MEDIATEK INC.
Inventor： Hao-Yuan Lin , Chia-Hua Chou , Yen-Hsun Hsu
Abstract: A low dropout voltage regulator for generating an output regulated voltage is provided. The low dropout voltage regulator includes a first transistor and a current recycling circuit. The first transistor has a first terminal for receiving an input supply voltage, a second terminal for generating the output regulated voltage, and a control terminal for receiving a control voltage. The current recycling circuit is configured to drain a feeding current to the second terminal of the first transistor in response to a first signal having feedback information of the output regulated voltage.
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公开(公告)号：US10230259B2
公开(公告)日：2019-03-12
申请号：US15158567
申请日：2016-05-18
Applicant: MEDIATEK INC.
Inventor： Nien-Hui Kung , Chien-Wei Kuan , Yen-Hsun Hsu
Abstract: An apparatus for performing hybrid power control in an electronic device includes a charger positioned in the electronic device, and the charger is arranged for selectively charging a battery of the electronic device. In addition, at least one portion of the charger is implemented within a charger chip. For example, the charger may include: a plurality of terminals that are positioned on the charger chip, where the plurality of terminals may include a third terminal and a fourth terminal; a plurality of switching units, positioned on the charger chip; and a control circuit, positioned on the charger chip and coupled to the plurality of switching units. The third terminal and the fourth terminal may be arranged for installing an inductor, where the inductor may be utilized by the charger when the control circuit configures the charger into any of at least two hardware configurations within a plurality of hardware configurations.
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Patent Agency Ranking
公开(公告)号：US09923465B2
公开(公告)日：2018-03-20
申请号：US15461559
申请日：2017-03-17
Applicant: MEDIATEK Inc.
Inventor： Tso-Min Chen , Chien-Wei Kuan , Yen-Hsun Hsu
CPC classification number: H02M3/158 , H02M1/08 , H02M2001/0009 , H02M2001/0048 , H02M2001/0058
Abstract: A power conversion circuit includes an input terminal, a first switching element, a second switching element, a third switching element, a fourth switching element, a capacitor; an inductor; and a controller configured to control the switching elements to be switched ON/OFF, such that a voltage at the load is regulated by repetitively (1) charging the inductor with a first current before charging the capacitor causing a second current to flow in the inductor and (2) charging the inductor with a third current before discharging the capacitor causing a fourth current to flow in the inductor.
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公开(公告)号：US09899920B2
公开(公告)日：2018-02-20
申请号：US15172120
申请日：2016-06-02
Applicant: MEDIATEK INC.
Inventor： Chien-Wei Kuan , Yen-Hsun Hsu , Shan-Fong Hong , Chih-Chen Li , Yu-Te Chao
CPC classification number: H02M3/158 , H02M1/08 , H02M1/14 , H02M3/1584 , H02M2001/0009 , H02M2001/0032 , H02M2001/0048 , H02M2003/1586 , Y02B70/1491 , Y02B70/16
Abstract: A voltage regulator includes a plurality of output stages and a controller. The plurality of output stages are arranged for selectively enabling to generate output voltages and output currents or not according to a plurality of control signals, respectively. The controller is arranged for sensing the output currents of the output stages, and generating the control signals according to the sensed output currents. When the controller generates the control signals to reduce a quantity of the enabled output stages, the controller determines whether a summation of the sensed output currents is greater than a first threshold or not to determine whether to enable more output stages, then a period of time later, the controller selectively determines whether the summation of the sensed output currents is greater than a second threshold or not to determine whether to enable more output stages, wherein the second threshold is lower than the first threshold.
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公开(公告)号：US09866060B2
公开(公告)日：2018-01-09
申请号：US15158574
申请日：2016-05-18
Applicant: MEDIATEK INC.
Inventor： Nien-Hui Kung , Chih-Wei Lin , Yen-Hsun Hsu
CPC classification number: H02J7/16 , H02J1/10 , H02J7/0055 , H02J7/0068 , H02J7/007 , H02J7/025 , H02J7/04 , H02J2007/0095
Abstract: An apparatus for performing hybrid power control in an electronic device includes a charger positioned in the electronic device, and the charger is arranged for selectively charging a battery of the electronic device. In addition, at least one portion of the charger is implemented within a charger chip, and the charger may include: a plurality of terminals that are positioned on the charger chip; a plurality of switching units, positioned on the charger chip; and at least one control circuit, positioned on the charger chip and coupled to the plurality of switching units. For example, the control circuit may be arranged for controlling the plurality of switching units to allow charging using any of a plurality of adaptors corresponding to different voltages, wherein a first charging path and a second charging path of the charger correspond to a first adaptor and a second adaptor within the plurality of adaptors, respectively.
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19.发明申请VOLTAGE REGULATOR AND METHOD FOR CONTROLLING OUTPUT STAGES OF VOLTAGE REGULATOR 有权用于控制电压调节器的输出阶段的电压调节器和方法公开(公告)号：US20170077811A1
公开(公告)日：2017-03-16
申请号：US15172120
申请日：2016-06-02
Applicant: MEDIATEK INC.
Inventor： Chien-Wei Kuan , Yen-Hsun Hsu , Shan-Fong Hong , Chih-Chen Li , Yu-Te Chao
CPC classification number: H02M3/158 , H02M1/08 , H02M1/14 , H02M3/1584 , H02M2001/0009 , H02M2001/0032 , H02M2001/0048 , H02M2003/1586 , Y02B70/1491 , Y02B70/16
Abstract: A voltage regulator includes a plurality of output stages and a controller. The plurality of output stages are arranged for selectively enabling to generate output voltages and output currents or not according to a plurality of control signals, respectively. The controller is arranged for sensing the output currents of the output stages, and generating the control signals according to the sensed output currents. When the controller generates the control signals to reduce a quantity of the enabled output stages, the controller determines whether a summation of the sensed output currents is greater than a first threshold or not to determine whether to enable more output stages, then a period of time later, the controller selectively determines whether the summation of the sensed output currents is greater than a second threshold or not to determine whether to enable more output stages, wherein the second threshold is lower than the first threshold.
Abstract translation: 电压调节器包括多个输出级和控制器。 多个输出级被布置用于分别根据多个控制信号选择性地产生输出电压和输出电流。 控制器被布置用于感测输出级的输出电流，并根据感测的输出电流产生控制信号。 当控制器产生控制信号以减少使能的输出级的数量时，控制器确定所感测的输出电流的总和是否大于第一阈值，以确定是否启用更多的输出级，然后是一段时间 之后，控制器选择性地确定所感测的输出电流的总和是否大于第二阈值，以确定是否启用更多输出级，其中第二阈值低于第一阈值。
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公开(公告)号：US11848606B2
公开(公告)日：2023-12-19
申请号：US17725561
申请日：2022-04-21
Applicant: MEDIATEK INC.
Inventor： Chia-Hua Chou , Yen-Hsun Hsu
CPC classification number: H02M3/04 , H02M1/007 , H02M3/1584
Abstract: The present invention provides a device including a first power delivery channel and a second power delivery channel. The first power delivery channel includes a first voltage regulator, wherein the first voltage regulator is configured to receive a first input voltage to generate a first output signal. The second power delivery channel includes a second voltage regulator and a third voltage regulator, wherein the second voltage regulator receives a second input voltage to generate a second output signal, and the third voltage regulator receives the second output signal to generate a converted second output signal, wherein the first output signal and the converted second output signal are coupled together to a core circuit.
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