Patents by Inventor Hao-Ping Hong
Hao-Ping Hong has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11860660Abstract: A sub-circuit of a voltage regulator includes a load condition detection circuit and a controllable circuit. The load condition detection circuit is arranged to detect a load transient frequency of a load powered by the voltage regulator, and generate a control signal according to a detection result of the load transient frequency. The controllable circuit is arranged to receive the control signal, wherein an operational behavior of the controllable circuit dynamically changes in response to the control signal.Type: GrantFiled: April 29, 2022Date of Patent: January 2, 2024Assignee: MediaTek Singapore Pte. Ltd.Inventors: Man Pun Chan, Hao-Ping Hong, Yung-Chih Yen, Chien-Hui Wang, Cheng-Hsuan Fan, Jian-Rong Huang
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Publication number: 20220393587Abstract: A feedback loop circuit of a voltage regulator includes a loadline and a compensation circuit. The loadline generates a feedback signal according to a sensed current signal that provides information of an inductor current of the voltage regulator, and outputs the feedback signal to a controller circuit of the voltage regulator for regulating an output voltage of the voltage regulator. The compensation circuit generates a compensation signal to compensate for a deviation of the output voltage, wherein the feedback signal generated from the loadline is affected by the compensation signal.Type: ApplicationFiled: April 13, 2022Publication date: December 8, 2022Applicant: MediaTek Singapore Pte. Ltd.Inventors: Man Pun Chan, Hao-Ping Hong, Yung-Chih Yen, Chien-Hui Wang, Cheng-Hsuan Fan, Jian-Rong Huang
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Publication number: 20220390973Abstract: A sub-circuit of a voltage regulator includes a load condition detection circuit and a controllable circuit. The load condition detection circuit is arranged to detect a load transient frequency of a load powered by the voltage regulator, and generate a control signal according to a detection result of the load transient frequency. The controllable circuit is arranged to receive the control signal, wherein an operational behavior of the controllable circuit dynamically changes in response to the control signal.Type: ApplicationFiled: April 29, 2022Publication date: December 8, 2022Applicant: MediaTek Singapore Pte. Ltd.Inventors: Man Pun Chan, Hao-Ping Hong, Yung-Chih Yen, Chien-Hui Wang, Cheng-Hsuan Fan, Jian-Rong Huang
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Patent number: 11502604Abstract: A buck converter includes an output stage, a FCVB control circuit and a driver. The output stage includes a plurality of switches and a flying capacitor, wherein the switches are connected in series, the flying capacitor is coupled between two of the switches, and the output stage is configured to receive an input voltage to generate an output voltage. The FCVB control circuit is configured to compare a voltage of the flying capacitor with half of the input voltage to generate a comparison result, and the FCVB control circuit further responds to the comparison result to generate a first control signal and a second control signal based on a first PWM signal and a second PWM signal. The driver is configured to generate a plurality of diving signals according to the first control signal and the second control signal, wherein the driving signals are arranged to control the switches, respectively.Type: GrantFiled: October 25, 2020Date of Patent: November 15, 2022Assignee: MEDIATEK INC.Inventors: Chun-Yen Tseng, Hao-Ping Hong, Chih-Wei Lin
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Publication number: 20220337159Abstract: A feedback loop circuit of a voltage regulator includes a voltage extraction circuit and a loop filter circuit. The voltage extraction circuit receives an error voltage signal that is indicative of difference between an output voltage signal and a reference voltage of the voltage regulator, and generates a voltage extraction signal by extracting one representative voltage for one switching cycle of the voltage regulator according to the error voltage signal. The loop filter circuit applies filtering to the voltage extraction signal to set a feedback signal, and output the feedback signal to a controller circuit of the voltage regulator for regulating the output voltage signal.Type: ApplicationFiled: April 12, 2022Publication date: October 20, 2022Applicant: MediaTek Singapore Pte. Ltd.Inventors: Man Pun Chan, Hao-Ping Hong, Yung-Chih Yen
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Publication number: 20210159790Abstract: A buck converter includes an output stage, a FCVB control circuit and a driver. The output stage includes a plurality of switches and a flying capacitor, wherein the switches are connected in series, the flying capacitor is coupled between two of the switches, and the output stage is configured to receive an input voltage to generate an output voltage. The FCVB control circuit is configured to compare a voltage of the flying capacitor with half of the input voltage to generate a comparison result, and the FCVB control circuit further responds to the comparison result to generate a first control signal and a second control signal based on a first PWM signal and a second PWM signal. The driver is configured to generate a plurality of diving signals according to the first control signal and the second control signal, wherein the driving signals are arranged to control the switches, respectively.Type: ApplicationFiled: October 25, 2020Publication date: May 27, 2021Inventors: Chun-Yen Tseng, Hao-Ping Hong, Chih-Wei Lin
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Patent number: 10211646Abstract: 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.Type: GrantFiled: February 5, 2018Date of Patent: February 19, 2019Assignee: MediaTek Inc.Inventors: Hung-Chih Lin, Yen-Hsun Hsu, Hao-Ping Hong
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Publication number: 20180159340Abstract: 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.Type: ApplicationFiled: February 5, 2018Publication date: June 7, 2018Applicant: MediaTek Inc.Inventors: Hung-Chih Lin, Yen-Hsun Hsu, Hao-Ping Hong
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Patent number: 9923387Abstract: 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.Type: GrantFiled: August 10, 2015Date of Patent: March 20, 2018Assignee: MediaTek Inc.Inventors: Hung-Chih Lin, Yen-Hsun Hsu, Hao-Ping Hong
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Patent number: 9923384Abstract: A method for performing efficiency optimization of an electronic device and an associated apparatus are provided, where the method includes the steps of: performing at least one detection operation according to at least one signal of the electronic device to generate at least one detection result; and selecting a rectifier size of a plurality of rectifier sizes of a configurable rectifier within the electronic device according to the at least one detection result, to control the configurable rectifier to operate with the rectifier size, wherein the configurable rectifier is arranged for performing rectification operations, and the configurable rectifier is configurable to operate with at least one portion of the configurable rectifier being activated.Type: GrantFiled: May 18, 2015Date of Patent: March 20, 2018Assignee: MediaTek Inc.Inventors: Hung-Chih Lin, Hao-Ping Hong
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Patent number: 9831780Abstract: A buck-boost converter includes an inductor, a first switch, a second switch, a third switch, a fourth switch and a fifth switch, wherein the first switch is coupled between an input voltage and a first terminal of the inductor, the second switch is coupled between a reference voltage and the first terminal of the inductor, the third switch is coupled between an output voltage and a second terminal of the inductor, the fourth switch is coupled between the reference voltage and the second terminal of the inductor, and the fifth switch is connected in parallel with the third switch. When the buck-boost converter operates in a buck mode, the first switch and the second switch are turned on alternately; when the buck-boost converter operates in a boost mode, the third switch and the fourth switch are turned on alternately; and the fifth switch is controlled by a mode control signal.Type: GrantFiled: July 13, 2016Date of Patent: November 28, 2017Assignee: MEDIATEK INC.Inventors: Hao-Ping Hong, Shih-Mei Lin
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Publication number: 20170040898Abstract: A buck-boost converter includes an inductor, a first switch, a second switch, a third switch, a fourth switch and a fifth switch, wherein the first switch is coupled between an input voltage and a first terminal of the inductor, the second switch is coupled between a reference voltage and the first terminal of the inductor, the third switch is coupled between an output voltage and a second terminal of the inductor, the fourth switch is coupled between the reference voltage and the second terminal of the inductor, and the fifth switch is connected in parallel with the third switch. When the buck-boost converter operates in a buck mode, the first switch and the second switch are turned on alternately; when the buck-boost converter operates in a boost mode, the third switch and the fourth switch are turned on alternately; and the fifth switch is controlled by a mode control signal.Type: ApplicationFiled: July 13, 2016Publication date: February 9, 2017Inventors: Hao-Ping Hong, Shih-Mei Lin
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Patent number: 9559583Abstract: 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.Type: GrantFiled: January 13, 2014Date of Patent: January 31, 2017Assignee: MEDIATEK INC.Inventors: Hung-chih Lin, Hung-I Wang, Hao-Ping Hong, Chien-Wei Kuan, Yung-Chih Yen
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Patent number: 9525294Abstract: A universal serial bus device includes: a core circuit having a first pin and a second pin, and having an input impedance looking into the core circuit from the first pin and the second pin; and a charging control circuit, coupled to the core circuit, arranged for selectively providing a voltage source to one of the first pin and the second pin; wherein the input impedance of the core circuit is configured to make the voltage source substantially intact when the voltage source is coupled to one of the first pin and the second pin.Type: GrantFiled: April 18, 2016Date of Patent: December 20, 2016Assignee: MEDIATEK INC.Inventors: Hao-Ping Hong, Shang-Pin Chen, Ding-Shiuan Shen
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Patent number: 9473089Abstract: 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.Type: GrantFiled: May 8, 2014Date of Patent: October 18, 2016Assignee: MEDIATEK INC.Inventors: Hao-Ping Hong, Hung-I Wang, Chun-Yen Tseng, Yen-Hsun Hsu
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Publication number: 20160233710Abstract: A universal serial bus device includes: a core circuit having a first pin and a second pin, and having an input impedance looking into the core circuit from the first pin and the second pin; and a charging control circuit, coupled to the core circuit, arranged for selectively providing a voltage source to one of the first pin and the second pin; wherein the input impedance of the core circuit is configured to make the voltage source substantially intact when the voltage source is coupled to one of the first pin and the second pin.Type: ApplicationFiled: April 18, 2016Publication date: August 11, 2016Inventors: Hao-Ping Hong, Shang-Pin Chen, Ding-Shiuan Shen
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Publication number: 20160204619Abstract: 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.Type: ApplicationFiled: August 10, 2015Publication date: July 14, 2016Inventors: Hung-Chih Lin, Yen-Hsun Hsu, Hao-Ping Hong
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Patent number: 9336170Abstract: A universal serial bus device includes: a core circuit having a first pin and a second pin, and having an input impedance looking into the core circuit from the first pin and the second pin; and a charging control circuit, coupled to the core circuit, arranged for providing a voltage source having a predetermined voltage to one of the first pin and the second pin and for providing a current source having a predetermined current to the other of the first pin and the second pin; wherein the input impedance of the core circuit is configured to make the predetermined voltage and the predetermined current substantially intact when an external charger charges a battery device of the universal serial bus device.Type: GrantFiled: February 22, 2011Date of Patent: May 10, 2016Assignee: MEDIATEK INC.Inventors: Hao-Ping Hong, Shang-Ping Chen, Ding-Shiuan Shen
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Patent number: 9288098Abstract: A communication unit has an envelope tracking system operably coupled to a power amplifier, PA, module. The envelope tracking system has at least one slew rate module arranged to re-distribute a slew rate across a number of input samples according to a maximum slew rate of the number of input samples; and a supply modulator arranged to variably control a supply voltage for the PA module in response to an output of the at least one slew rate module.Type: GrantFiled: February 3, 2015Date of Patent: March 15, 2016Assignee: MediaTek, Inc.Inventors: Sheng-Hong Yan, Hao-Ping Hong
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Publication number: 20150340877Abstract: A method for performing efficiency optimization of an electronic device and an associated apparatus are provided, where the method includes the steps of: performing at least one detection operation according to at least one signal of the electronic device to generate at least one detection result; and selecting a rectifier size of a plurality of rectifier sizes of a configurable rectifier within the electronic device according to the at least one detection result, to control the configurable rectifier to operate with the rectifier size, wherein the configurable rectifier is arranged for performing rectification operations, and the configurable rectifier is configurable to operate with at least one portion of the configurable rectifier being activated.Type: ApplicationFiled: May 18, 2015Publication date: November 26, 2015Inventors: Hung-Chih Lin, Hao-Ping Hong