Patents by Inventor Dongze Yang
Dongze Yang 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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Publication number: 20240421714Abstract: Controller and method for a switching power supply. For example, a controller for a switching power supply includes: a first terminal configured to receive a feedback voltage representing an output voltage associated with a secondary winding of the switching power supply; a second terminal configured to output a drive voltage to a first transistor associated with a primary winding coupled to the secondary winding of the switching power supply; a comparator configured to receive the feedback voltage and a predetermined feedback threshold and generate a comparison signal based at least in part on the feedback voltage and the predetermined feedback threshold; a pulse-width detector configured to detect a pulse width of the drive voltage during a first switching cycle, compare the detected pulse width with a predetermined time threshold, and generate a detection signal based at least in part on the detected pulse width and the predetermined time threshold.Type: ApplicationFiled: June 12, 2024Publication date: December 19, 2024Inventors: YUAN LIN, PENGLIN YANG, DONGZE YANG, LIEYI FANG
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Patent number: 12065884Abstract: A method of manufacturing a roller cone includes machining a cone blank and thereby defining one or more land surfaces and one or more insert grooves on the cone blank, surface hardening the cone blank, and milling a plurality of recesses into at least one of the one or more land surfaces. The method further includes subjecting the cone blank to a quenching process, forming an insert hole at each recess, and inserting an insert into each insert hole.Type: GrantFiled: December 3, 2021Date of Patent: August 20, 2024Assignee: Taurex Drill Bits, LLCInventors: Yongzhong Cai, Dongze Yang, Yuan Yi, Dustin Lyles, Terry Vance Morris
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Patent number: 12047007Abstract: Controller and method for a switching power supply. For example, a controller for a switching power supply includes: a first terminal configured to receive a feedback voltage representing an output voltage associated with a secondary winding of the switching power supply; a second terminal configured to output a drive voltage to a first transistor associated with a primary winding coupled to the secondary winding of the switching power supply; a comparator configured to receive the feedback voltage and a predetermined feedback threshold and generate a comparison signal based at least in part on the feedback voltage and the predetermined feedback threshold; a pulse-width detector configured to detect a pulse width of the drive voltage during a first switching cycle, compare the detected pulse width with a predetermined time threshold, and generate a detection signal based at least in part on the detected pulse width and the predetermined time threshold.Type: GrantFiled: March 8, 2022Date of Patent: July 23, 2024Assignee: On-Bright Electronics (Shanghai) Co., Ltd.Inventors: Yuan Lin, Penglin Yang, Dongze Yang, Lieyi Fang
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Publication number: 20220294355Abstract: Controller and method for a switching power supply. For example, a controller for a switching power supply includes: a first terminal configured to receive a feedback voltage representing an output voltage associated with a secondary winding of the switching power supply; a second terminal configured to output a drive voltage to a first transistor associated with a primary winding coupled to the secondary winding of the switching power supply; a comparator configured to receive the feedback voltage and a predetermined feedback threshold and generate a comparison signal based at least in part on the feedback voltage and the predetermined feedback threshold; a pulse-width detector configured to detect a pulse width of the drive voltage during a first switching cycle, compare the detected pulse width with a predetermined time threshold, and generate a detection signal based at least in part on the detected pulse width and the predetermined time threshold.Type: ApplicationFiled: March 8, 2022Publication date: September 15, 2022Inventors: YUAN LIN, PENGLIN YANG, DONGZE YANG, LIEYI FANG
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Publication number: 20220178210Abstract: A method of manufacturing a roller cone includes machining a cone blank and thereby defining one or more land surfaces and one or more insert grooves on the cone blank, surface hardening the cone blank, and milling a plurality of recesses into at least one of the one or more land surfaces. The method further includes subjecting the cone blank to a quenching process, forming an insert hole at each recess, and inserting an insert into each insert hole.Type: ApplicationFiled: December 3, 2021Publication date: June 9, 2022Applicants: King Dream Public Limited Company, Taurex Drill Bits, LLCInventors: Yongzhong Cai, Dongze Yang, Yuan Yi, Dustin Lyles, Terry Vance Morris
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Patent number: 11356025Abstract: System and method for protecting a power converter. The system includes a first comparator configured to receive a first threshold signal and a first signal and to generate a first comparison signal. The first signal is associated with an input current for a power converter. Additionally, the system includes a second comparator configured to receive a second threshold signal and the first signal and to generate a second comparison signal. The second threshold signal is different from the first threshold signal in magnitude. Moreover, the system includes a first detection component configured to receive at least the second comparison signal, detect the second comparison signal only if one or more predetermined conditions are satisfied, and generate a first detection signal based on at least information associated with the detected second comparison signal.Type: GrantFiled: September 18, 2017Date of Patent: June 7, 2022Assignee: On-Bright Electronics (Shanghai) Co., Ltd.Inventors: Dongze Yang, Yaming Cao, Yunchao Zhang, Lieyi Fang
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Patent number: 10727743Abstract: System and method for regulating a power conversion system. For example, a system controller for regulating a power conversion system includes an amplifier, a variable-resistance component, a capacitor, and a modulation and drive component. The amplifier is configured to receive a reference signal and a feedback signal associated with an output signal of the power conversion system, the amplifier including an amplifier terminal. The variable-resistance component is associated with a first variable resistance value, the variable-resistance component including a first component terminal and a second component terminal, the first component terminal being coupled with the amplifier terminal. The capacitor includes a first capacitor terminal and a second capacitor terminal, the first capacitor terminal being coupled with the second component terminal. The modulation and drive component includes a first terminal and a second terminal, the first terminal being coupled with the amplifier terminal.Type: GrantFiled: November 29, 2018Date of Patent: July 28, 2020Assignee: On-Bright Electronics (Shanghai) Co., Ltd.Inventors: Yaming Cao, Dongze Yang, Qiang Luo, Lieyi Fang
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Publication number: 20190165674Abstract: System and method for regulating a power conversion system. For example, a system controller for regulating a power conversion system includes an amplifier, a variable-resistance component, a capacitor, and a modulation and drive component. The amplifier is configured to receive a reference signal and a feedback signal associated with an output signal of the power conversion system, the amplifier including an amplifier terminal. The variable-resistance component is associated with a first variable resistance value, the variable-resistance component including a first component terminal and a second component terminal, the first component terminal being coupled with the amplifier terminal. The capacitor includes a first capacitor terminal and a second capacitor terminal, the first capacitor terminal being coupled with the second component terminal. The modulation and drive component includes a first terminal and a second terminal, the first terminal being coupled with the amplifier terminal.Type: ApplicationFiled: November 29, 2018Publication date: May 30, 2019Inventors: YAMING CAO, Dongze Yang, Qiang Luo, Lieyi Fang
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Patent number: 10230304Abstract: System and method for regulating a power conversion system. An example system controller for regulating a power conversion system includes a signal generator and a driving component. The signal generator is configured to receive a feedback signal associated with an output signal of a power conversion system and a current sensing signal associated with a primary current flowing through a primary winding of the power conversion system and generate a modulation signal based on at least information associated with the feedback signal and the current sensing signal. The driving component is configured to receive the modulation signal and output a drive signal to a switch based on at least information associated with the modulation signal.Type: GrantFiled: June 15, 2017Date of Patent: March 12, 2019Assignee: On-Bright Electronics (Shanghai) Co., Ltd.Inventors: Dongze Yang, Miao Li, Lieyi Fang
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Patent number: 10211626Abstract: System controller and method for protecting a power converter. The system controller includes a first controller terminal configured to output a drive signal to a switch to affect a first current flowing through a primary winding of a power converter. The power converter further includes a secondary winding coupled to the primary winding, and the drive signal is associated with one or more switching periods. Additionally, the system controller includes a second controller terminal configured to receive a sensing voltage from a sensing resistor. The sensing voltage represents a magnitude of the first current flowing through the primary winding of the power converter. The system controller is configured to process information associated with the sensing voltage and a reference voltage, and determine whether an average output current of the power converter is larger than a current threshold.Type: GrantFiled: December 15, 2016Date of Patent: February 19, 2019Assignee: On-Bright Electronics (Shanghai) Co., Ltd.Inventors: Dongze Yang, Xiaomin Huang, Xiaozhi Kang, Yuan Lin, Huawei Lyu, Lieyi Fang
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Patent number: 10193443Abstract: System and method for regulating a power conversion system. For example, a system controller for regulating a power conversion system includes an amplifier, a variable-resistance component, a capacitor, and a modulation and drive component. The amplifier is configured to receive a reference signal and a feedback signal associated with an output signal of the power conversion system, the amplifier including an amplifier terminal. The variable-resistance component is associated with a first variable resistance value, the variable-resistance component including a first component terminal and a second component terminal, the first component terminal being coupled with the amplifier terminal. The capacitor includes a first capacitor terminal and a second capacitor terminal, the first capacitor terminal being coupled with the second component terminal. The modulation and drive component includes a first terminal and a second terminal, the first terminal being coupled with the amplifier terminal.Type: GrantFiled: October 4, 2017Date of Patent: January 29, 2019Assignee: On-Bright Electronics (Shanghai) Co., Ltd.Inventors: Yaming Cao, Dongze Yang, Qiang Luo, Lieyi Fang
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Publication number: 20180091047Abstract: System and method for regulating a power conversion system. For example, a system controller for regulating a power conversion system includes an amplifier, a variable-resistance component, a capacitor, and a modulation and drive component. The amplifier is configured to receive a reference signal and a feedback signal associated with an output signal of the power conversion system, the amplifier including an amplifier terminal. The variable-resistance component is associated with a first variable resistance value, the variable-resistance component including a first component terminal and a second component terminal, the first component terminal being coupled with the amplifier terminal. The capacitor includes a first capacitor terminal and a second capacitor terminal, the first capacitor terminal being coupled with the second component terminal. The modulation and drive component includes a first terminal and a second terminal, the first terminal being coupled with the amplifier terminal.Type: ApplicationFiled: October 4, 2017Publication date: March 29, 2018Inventors: Yaming CAO, Dongze YANG, Qiang LUO, Lieyi FANG
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Publication number: 20180076719Abstract: System and method for protecting a power converter. The system includes a first comparator configured to receive a first threshold signal and a first signal and to generate a first comparison signal. The first signal is associated with an input current for a power converter. Additionally, the system includes a second comparator configured to receive a second threshold signal and the first signal and to generate a second comparison signal. The second threshold signal is different from the first threshold signal in magnitude. Moreover, the system includes a first detection component configured to receive at least the second comparison signal, detect the second comparison signal only if one or more predetermined conditions are satisfied, and generate a first detection signal based on at least information associated with the detected second comparison signal.Type: ApplicationFiled: September 18, 2017Publication date: March 15, 2018Inventors: DONGZE YANG, YAMING CAO, YUNCHAO ZHANG, LIEYI FANG
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Publication number: 20170346408Abstract: System and method for regulating a power conversion system. An example system controller for regulating a power conversion system includes a signal generator and a driving component. The signal generator is configured to receive a feedback signal associated with an output signal of a power conversion system and a current sensing signal associated with a primary current flowing through a primary winding of the power conversion system and generate a modulation signal based on at least information associated with the feedback signal and the current sensing signal. The driving component is configured to receive the modulation signal and output a drive signal to a switch based on at least information associated with the modulation signal.Type: ApplicationFiled: June 15, 2017Publication date: November 30, 2017Inventors: Dongze Yang, Miao Li, Lieyi Fang
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Patent number: 9825539Abstract: System and method for protecting a power converter. The system includes a first comparator configured to receive a first threshold signal and a first signal and to generate a first comparison signal. The first signal is associated with an input current for a power converter. Additionally, the system includes a second comparator configured to receive a second threshold signal and the first signal and to generate a second comparison signal. The second threshold signal is different from the first threshold signal in magnitude. Moreover, the system includes a first detection component configured to receive at least the second comparison signal, detect the second comparison signal only if one or more predetermined conditions are satisfied, and generate a first detection signal based on at least information associated with the detected second comparison signal.Type: GrantFiled: April 28, 2016Date of Patent: November 21, 2017Assignee: On-Bright Electronics (Shanghai) Co., Ltd.Inventors: Dongze Yang, Yaming Cao, Yunchao Zhang, Lieyi Fang
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Patent number: 9819262Abstract: System and method for regulating a power conversion system. For example, a system controller for regulating a power conversion system includes an amplifier, a variable-resistance component, a capacitor, and a modulation and drive component. The amplifier is configured to receive a reference signal and a feedback signal associated with an output signal of the power conversion system, the amplifier including an amplifier terminal. The variable-resistance component is associated with a first variable resistance value, the variable-resistance component including a first component terminal and a second component terminal, the first component terminal being coupled with the amplifier terminal. The capacitor includes a first capacitor terminal and a second capacitor terminal, the first capacitor terminal being coupled with the second component terminal. The modulation and drive component includes a first terminal and a second terminal, the first terminal being coupled with the amplifier terminal.Type: GrantFiled: December 8, 2015Date of Patent: November 14, 2017Assignee: On-Bright Electronics (Shanghai) Co., Ltd.Inventors: Yaming Cao, Dongze Yang, Qiang Luo, Lieyi Fang
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Patent number: 9729067Abstract: System and method for regulating a power conversion system. An example system controller for regulating a power conversion system includes a signal generator and a driving component. The signal generator is configured to receive a feedback signal associated with an output signal of a power conversion system and a current sensing signal associated with a primary current flowing through a primary winding of the power conversion system and generate a modulation signal based on at least information associated with the feedback signal and the current sensing signal. The driving component is configured to receive the modulation signal and output a drive signal to a switch based on at least information associated with the modulation signal.Type: GrantFiled: August 7, 2015Date of Patent: August 8, 2017Assignee: On-Bright Electronics (Shanghai) Co., Ltd.Inventors: Dongze Yang, Miao Li, Lieyi Fang
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Publication number: 20170163026Abstract: System controller and method for protecting a power converter. The system controller includes a first controller terminal configured to output a drive signal to a switch to affect a first current flowing through a primary winding of a power converter. The power converter further includes a secondary winding coupled to the primary winding, and the drive signal is associated with one or more switching periods. Additionally, the system controller includes a second controller terminal configured to receive a sensing voltage from a sensing resistor. The sensing voltage represents a magnitude of the first current flowing through the primary winding of the power converter. The system controller is configured to process information associated with the sensing voltage and a reference voltage, and determine whether an average output current of the power converter is larger than a current threshold.Type: ApplicationFiled: December 15, 2016Publication date: June 8, 2017Inventors: Dongze Yang, Xiaomin Huang, Xiaozhi Kang, Yuan Lin, Huawei Lyu, Lieyi Fang
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Patent number: 9577536Abstract: System controller and method for protecting a power converter. The system controller includes a first controller terminal configured to output a drive signal to a switch to affect a first current flowing through a primary winding of a power converter. The power converter further includes a secondary winding coupled to the primary winding, and the drive signal is associated with one or more switching periods. Additionally, the system controller includes a second controller terminal configured to receive a sensing voltage from a sensing resistor. The sensing voltage represents a magnitude of the first current flowing through the primary winding of the power converter. The system controller is configured to process information associated with the sensing voltage and a reference voltage, and determine whether an average output current of the power converter is larger than a current threshold.Type: GrantFiled: March 5, 2015Date of Patent: February 21, 2017Assignee: On-Bright Electronics (Shanghai) Co., Ltd.Inventors: Dongze Yang, Xiaomin Huang, Xiaozhi Kang, Yuan Lin, Huawei Lyu, Lieyi Fang
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Publication number: 20160344295Abstract: System and method for protecting a power converter. The system includes a first comparator configured to receive a first threshold signal and a first signal and to generate a first comparison signal. The first signal is associated with an input current for a power converter. Additionally, the system includes a second comparator configured to receive a second threshold signal and the first signal and to generate a second comparison signal. The second threshold signal is different from the first threshold signal in magnitude. Moreover, the system includes a first detection component configured to receive at least the second comparison signal, detect the second comparison signal only if one or more predetermined conditions are satisfied, and generate a first detection signal based on at least information associated with the detected second comparison signal.Type: ApplicationFiled: April 28, 2016Publication date: November 24, 2016Inventors: Dongze Yang, Yaming Cao, Yunchao Zhang, Lieyi Fang