Patents by Inventor Jinghong Guo
Jinghong Guo 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: 11070125Abstract: A fault-tolerant multiphase voltage regulator includes a plurality of power stages, each of which is configured to deliver a phase current to a processor, and a controller. The controller is configured to: control the plurality of power stages to regulate an output voltage provided to the processor; detect and disable a faulty power stage; generate a throttling signal to indicate that one or more of the power stages is faulty and disabled; communicate the throttling signal to the processor over a physical line running between the processor and the controller; and place the multiphase voltage regulator in a self-test mode in which the processor is operated at a known computational load and the controller operates each power stage independently to determine if any of the power stages is faulty under the known computational load. A corresponding method of operating a fault-tolerant power distribution system is also described.Type: GrantFiled: October 29, 2019Date of Patent: July 20, 2021Assignee: Infineon Technologies Austria AGInventors: Benjamim Tang, Jinghong Guo, Harrison Hu, Tim Ng, Mattia Oddicini, Herbert Zojer
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Patent number: 10693361Abstract: A multiphase voltage regulator includes a plurality of power stages, a plurality of current sense circuits, a controller and a current sense interface running between the controller and one or more of the current sense circuits. The current sense interface includes a separate line for each current sense circuit coupled to the current sense interface and which is configured to support single-ended or differential current sense. The regulator also includes a plurality of pullup circuits, each of which is connected to one of the current sense interface lines and has a higher impedance than the line to which it is connected. A fault detection circuit of the controller determines if an individual one of the current sense interface lines has an open fault, based on the pullup circuit connected to the line with the open fault pulling up the voltage on the line by more than a predetermined amount.Type: GrantFiled: August 1, 2018Date of Patent: June 23, 2020Assignee: Infineon Technologies Austria AGInventors: Jinghong Guo, Harrison Hu, Tim Ng, Mattia Oddicini, Benjamim Tang, Herbert Zojer
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Publication number: 20200067408Abstract: A method of calibrating a regulator includes: measuring at least one of a voltage and a current; comparing the measurement to a nominal value of the at least one of the voltage and the current; generating a correction parameter of the comparison of the measurement to the nominal value; and storing the correction parameter in a local memory of the regulator.Type: ApplicationFiled: October 29, 2019Publication date: February 27, 2020Inventors: Benjamim Tang, Chun-Yen Lin, Rohan Samsi, Jinghong Guo, Tim M. Ng, Richard C. Pierson
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Publication number: 20200064878Abstract: A fault-tolerant multiphase voltage regulator includes a plurality of power stages, each of which is configured to deliver a phase current to a processor, and a controller. The controller is configured to: control the plurality of power stages to regulate an output voltage provided to the processor; detect and disable a faulty power stage; generate a throttling signal to indicate that one or more of the power stages is faulty and disabled; communicate the throttling signal to the processor over a physical line running between the processor and the controller; and place the multiphase voltage regulator in a self-test mode in which the processor is operated at a known computational load and the controller operates each power stage independently to determine if any of the power stages is faulty under the known computational load. A corresponding method of operating a fault-tolerant power distribution system is also described.Type: ApplicationFiled: October 29, 2019Publication date: February 27, 2020Inventors: Benjamim Tang, Jinghong Guo, Harrison Hu, Tim Ng, Mattia Oddicini, Herbert Zojer
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Publication number: 20200044553Abstract: A multiphase voltage regulator includes a plurality of power stages, a plurality of current sense circuits, a controller and a current sense interface running between the controller and one or more of the current sense circuits. The current sense interface includes a separate line for each current sense circuit coupled to the current sense interface and which is configured to support single-ended or differential current sense. The regulator also includes a plurality of pullup circuits, each of which is connected to one of the current sense interface lines and has a higher impedance than the line to which it is connected. A fault detection circuit of the controller determines if an individual one of the current sense interface lines has an open fault, based on the pullup circuit connected to the line with the open fault pulling up the voltage on the line by more than a predetermined amount.Type: ApplicationFiled: August 1, 2018Publication date: February 6, 2020Inventors: Jinghong Guo, Harrison Hu, Tim Ng, Mattia Oddicini, Benjamim Tang, Herbert Zojer
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Patent number: 10481626Abstract: A fault-tolerant multiphase voltage regulator includes a plurality of power stages, each of which is configured to deliver a phase current to a processor, and a controller. The controller is configured to: control the plurality of power stages to regulate an output voltage provided to the processor; detect and disable a faulty power stage; generate a throttling signal to indicate if one or more of the power stages is faulty and disabled; and communicate the throttling signal to the processor over a physical line running between the processor and the controller. A corresponding method of operating a fault-tolerant power distribution system is also described.Type: GrantFiled: August 21, 2018Date of Patent: November 19, 2019Assignee: Infineon Technologies Austria AGInventors: Benjamim Tang, Jinghong Guo, Harrison Hu, Tim Ng, Mattia Oddicini, Herbert Zojer
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Patent number: 10483847Abstract: Methods and apparatus for a power regulator according to various aspects of the present invention may comprise a sensor adapted to generate a measurement of a voltage or a current. A memory may store a correction parameter that corresponds to the measurement, and a correction system may be adapted to adjust the measurement according to the correction parameter.Type: GrantFiled: January 21, 2015Date of Patent: November 19, 2019Assignee: Infineon Technologies Austria AGInventors: Benjamim Tang, Chun-Yen Lin, Rohan Samsi, Jinghong Guo, Tim M. Ng, Richard C. Pierson
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Patent number: 10338625Abstract: A voltage regulation system for providing power to a load is provided. The voltage regulation system includes a voltage regulator operable to: set an operating voltage of the load at a first voltage level which corresponds to a first voltage requirement of the load; receive a second voltage requirement of the load which is different than the first voltage requirement; produce a voltage ramp signal which transitions from the first voltage level to a second voltage level which corresponds to the second voltage requirement at a defined ramp rate; and ramp the operating voltage from the first voltage level to the second voltage level based on the voltage ramp signal and at the same ramp rate as the voltage ramp signal, but with a lag between the voltage ramp signal and the ramp in the operating voltage.Type: GrantFiled: December 28, 2017Date of Patent: July 2, 2019Assignee: Infineon Technologies Austria AGInventors: Amir Babazadeh, Benjamim Tang, Jinghong Guo, Tim Ng, Scott Southwell, Richard Pierson, Nick Steffen
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Patent number: 10324480Abstract: A multiphase voltage regulator includes a plurality of phases and a controller. Each phase is configured to output a phase current to a load through an inductor in response to a control signal input to the phase. The controller is operable to: generate the control signals input to the phases; set a switching frequency of the control signals to a first value; and change the switching frequency from the first value to a second value different than the first value if the load current changes repetitively at a frequency that is within a predetermined range of the first value of the switching frequency. A corresponding method of operating the multiphase voltage regulator is also provided.Type: GrantFiled: October 10, 2017Date of Patent: June 18, 2019Assignee: Infineon Technologies Austria AGInventors: Zhiqing You, Tim Ng, Amir Babazadeh, Jinghong Guo, Benjamim Tang
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Publication number: 20190107853Abstract: A multiphase voltage regulator includes a plurality of phases and a controller. Each phase is configured to output a phase current to a load through an inductor in response to a control signal input to the phase. The controller is operable to: generate the control signals input to the phases; set a switching frequency of the control signals to a first value; and change the switching frequency from the first value to a second value different than the first value if the load current changes repetitively at a frequency that is within a predetermined range of the first value of the switching frequency. A corresponding method of operating the multiphase voltage regulator is also provided.Type: ApplicationFiled: October 10, 2017Publication date: April 11, 2019Inventors: Zhiqing You, Tim Ng, Amir Babazadeh, Jinghong Guo, Benjamim Tang
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Patent number: 10203293Abstract: The present invention discloses a method for lightning stroke identification and location on optical fiber composite overhead ground wire. In the method, according to the property that the lightning stroke will cause a sudden temperature rise at the lightning stroke position on the optical fiber composite overhead ground wire, optical fiber resources in the optical fiber composite overhead ground wire and the high-sensitivity detection and high-precision event locating capability of a distributed optical fiber temperature sensor can be fully utilized.Type: GrantFiled: March 12, 2015Date of Patent: February 12, 2019Assignees: STATE GRID CORPORATION OF CHINA CO., LTD., GLOBAL ENERGY INTERCONNECTION RESEARCH INSTITUTE, CO., LTD., STATE GRID HEBEI ELECTRIC POWER COMPANY CO., LTD.Inventors: Lidong Lv, Cheng Zhong, Fengzhen Zhou, Weiwei Miao, Yun Liang, Binglin Li, Jinghong Guo, Ningxi Song, Han Su
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Publication number: 20180120886Abstract: A voltage regulation system for providing power to a load is provided. The voltage regulation system includes a voltage regulator operable to: set an operating voltage of the load at a first voltage level which corresponds to a first voltage requirement of the load; receive a second voltage requirement of the load which is different than the first voltage requirement; produce a voltage ramp signal which transitions from the first voltage level to a second voltage level which corresponds to the second voltage requirement at a defined ramp rate; and ramp the operating voltage from the first voltage level to the second voltage level based on the voltage ramp signal and at the same ramp rate as the voltage ramp signal, but with a lag between the voltage ramp signal and the ramp in the operating voltage.Type: ApplicationFiled: December 28, 2017Publication date: May 3, 2018Inventors: Amir Babazadeh, Benjamim Tang, Jinghong Guo, Tim Ng, Scott Southwell, Richard Pierson, Nick Steffen
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Patent number: 9870017Abstract: A voltage regulation system for providing power to a load is provided. The voltage regulation system includes a voltage regulator operable to set an operating voltage of the load at a first voltage level which corresponds to a first voltage requirement of the load, receive a second voltage requirement of the load which is different than the first voltage requirement and produce a voltage ramp from the first voltage level to the second voltage level. The voltage regulator is further operable to transition the operating voltage from the first voltage level to the second voltage level at a same ramp rate as the voltage ramp and with a lag between the voltage ramp and the transition in the operating voltage.Type: GrantFiled: July 31, 2015Date of Patent: January 16, 2018Assignee: Infineon Technologies Austria AGInventors: Amir Babazadeh, Benjamim Tang, Jinghong Guo, Tim Ng, Scott Southwell, Richard Pierson, Nick Steffen
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Publication number: 20170023504Abstract: The present invention discloses a method for lightning stroke identification and location on optical fiber composite overhead ground wire. In the method, according to the property that the lightning stroke will cause a sudden temperature rise at the lightning stroke position on the optical fiber composite overhead ground wire, optical fiber resources in the optical fiber composite overhead ground wire and the high-sensitivity detection and high-precision event locating capability of a distributed optical fiber temperature sensor can be fully utilized.Type: ApplicationFiled: March 12, 2015Publication date: January 26, 2017Inventors: Lidong LV, Cheng ZHONG, Fengzhen ZHOU, Weiwei MIAO, Yun LIANG, Binglin LI, Jinghong GUO, Ningxi SONG, Han SU
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Publication number: 20160181916Abstract: Methods and apparatus for a power regulator according to various aspects of the present invention may comprise a sensor adapted to generate a measurement of a voltage or a current. A memory may store a correction parameter that corresponds to the measurement, and a correction system may be adapted to adjust the measurement according to the correction parameter.Type: ApplicationFiled: January 21, 2015Publication date: June 23, 2016Inventors: Benjamim Tang, Chun-Yen Lin, Rohan Samsi, Jinghong Guo, Tim M. Ng, Richard C. Pierson
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Publication number: 20150338871Abstract: A voltage regulation system for providing power to a load is provided. The voltage regulation system includes a voltage regulator operable to set an operating voltage of the load at a first voltage level which corresponds to a first voltage requirement of the load, receive a second voltage requirement of the load which is different than the first voltage requirement and produce a voltage ramp from the first voltage level to the second voltage level. The voltage regulator is further operable to transition the operating voltage from the first voltage level to the second voltage level at a same ramp rate as the voltage ramp and with a lag between the voltage ramp and the transition in the operating voltage.Type: ApplicationFiled: July 31, 2015Publication date: November 26, 2015Inventors: Amir Babazadeh, Benjamim Tang, Jinghong Guo, Tim Ng, Scott Southwell, Richard Pierson, Nick Steffen
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Patent number: 9110480Abstract: Methods and apparatus for power regulation according to various aspects of the present invention may operate in conjunction with producing a voltage ramp starting at a first voltage and ending at a second voltage and compensating the voltage ramp according to a compensation parameter. The compensation parameter may be adapted to compensate for a circuit parameter. A voltage may then be generated according to the compensated voltage ramp.Type: GrantFiled: June 7, 2011Date of Patent: August 18, 2015Assignee: Infineon Technologies Austria AGInventors: Amir Babazadeh, Benjamim Tang, Jinghong Guo, Scott Southwell, Tim Ng, Richard Pierson, Nick Steffen
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Patent number: 9065339Abstract: Methods and apparatus of dynamic transient optimization in a voltage regulator according to various aspects of the present invention may comprise a transition detector configured to compare an output voltage error to an amplitude threshold. The voltage regulator may further comprise a frequency detector configured to measure the frequency of the amplitude threshold being exceeded and to compare the frequency to a frequency threshold and a response circuit configured to activate a response according to a comparison between the frequency threshold and the frequency of the amplitude threshold being exceeded.Type: GrantFiled: March 11, 2011Date of Patent: June 23, 2015Assignee: Infineon Technologies Austria AGInventors: Richard Pierson, Jinghong Guo, Tim M. Ng, Benjamim Tang, Amir Babazadeh, Scott Southwell
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Publication number: 20150162827Abstract: Methods and apparatus for a power regulator according to various aspects of the present invention may comprise a sensor adapted to generate a measurement of a voltage or a current. A memory may store a correction parameter that corresponds to the measurement, and a correction system may be adapted to adjust the measurement according to the correction parameter.Type: ApplicationFiled: January 21, 2015Publication date: June 11, 2015Inventors: Benjamim Tang, Chun-Yen Lin, Rohan Samsi, Jinghong Guo, Tim M. Ng, Richard C. Pierson
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Patent number: 8972216Abstract: Methods and apparatus for a power regulator according to various aspects of the present invention may comprise a sensor adapted to generate a measurement of a voltage or a current. A memory may store a correction parameter that corresponds to the measurement, and a correction system may be adapted to adjust the measurement according to the correction parameter.Type: GrantFiled: March 8, 2011Date of Patent: March 3, 2015Assignee: Infineon Technologies Austria AGInventors: Benjamim Tang, Chun-Yen Lin, Rohan Samsi, Jinghong Guo, Tim M. Ng, Richard Pierson