Patents by Inventor Chiteh Chiang
Chiteh Chiang 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: 10748845Abstract: Various applications of interconnect substrates in power management systems are described.Type: GrantFiled: May 7, 2019Date of Patent: August 18, 2020Assignee: Volterra Semiconductor CorporationInventors: Mihalis Michael, Kwang Hong Tan, Ilija Jergovic, Chiteh Chiang, Anthony Stratakos
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Publication number: 20190341344Abstract: Various applications of interconnect substrates in power management systems are described.Type: ApplicationFiled: May 7, 2019Publication date: November 7, 2019Inventors: Mihalis Michael, Kwang Hong Tan, Ilija Jergovic, Chiteh Chiang, Anthony Stratakos
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Patent number: 10332827Abstract: Various applications of interconnect substrates in power management systems are described.Type: GrantFiled: December 9, 2016Date of Patent: June 25, 2019Assignee: Volterra Semiconductor CorporationInventors: Mihalis Michael, Kwang Hong Tan, Ilija Jergovic, Chiteh Chiang, Anthony J. Stratakos
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Patent number: 10284072Abstract: A voltage regulator includes a high-side device, a low-side device, and a controller. The high-side device includes first and second transistors each coupled between an input terminal and an intermediate terminal, where the first transistor has a higher breakdown voltage than the second transistor. The low-side device is coupled between the intermediate terminal and a ground terminal. The controller is configured to drive the high-side and low-side devices to (a) alternately couple the intermediate terminal to the input terminal and the ground terminal and (b) cause the first transistor to control a voltage across the second transistor during switching transitions of the second transistor.Type: GrantFiled: July 28, 2017Date of Patent: May 7, 2019Assignee: Volterra Semiconductor LLCInventors: Marco A. Zuniga, Chiteh Chiang, Yang Lu, Badredin Fatemizadeh, Amit Paul, Jun Ruan, Craig Cassella
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Patent number: 10243467Abstract: The subject matter of this document can be embodied in a method that includes a voltage regulator having an input terminal and an output terminal. The voltage regulator includes a high-side transistor between the input terminal and an intermediate terminal, and a low-side transistor between the intermediate terminal and ground. The voltage regulator includes a low-side driver circuit including a capacitor and an inverter. The output of the inverter is connected to the gate of the low-side transistor. The voltage regulator also includes a controller that drives the high-side and low-side transistors to alternately couple the intermediate terminal to the input terminal and ground. The controller is configured to drive the low-side transistor by controlling the inverter. The voltage regulator further includes a switch coupled to the low-side driver circuit. The switch is configured to block charge leakage out of the capacitor during an off state of the low-side transistor.Type: GrantFiled: December 18, 2017Date of Patent: March 26, 2019Assignee: Volterra Semiconductor LLCInventors: Chiteh Chiang, Marco A. Zuniga, Yang Lu
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Publication number: 20180109192Abstract: The subject matter of this document can be embodied in a method that includes a voltage regulator having an input terminal and an output terminal. The voltage regulator includes a high-side transistor between the input terminal and an intermediate terminal, and a low-side transistor between the intermediate terminal and ground. The voltage regulator includes a low-side driver circuit including a capacitor and an inverter. The output of the inverter is connected to the gate of the low-side transistor. The voltage regulator also includes a controller that drives the high-side and low-side transistors to alternately couple the intermediate terminal to the input terminal and ground. The controller is configured to drive the low-side transistor by controlling the inverter. The voltage regulator further includes a switch coupled to the low-side driver circuit. The switch is configured to block charge leakage out of the capacitor during an off state of the low-side transistor.Type: ApplicationFiled: December 18, 2017Publication date: April 19, 2018Inventors: Chiteh Chiang, Marco A. Zuniga, Yang Lu
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Patent number: 9847722Abstract: The subject matter of this document can be embodied in a method that includes a voltage regulator having an input terminal and an output terminal. The voltage regulator includes a high-side transistor between the input terminal and an intermediate terminal, and a low-side transistor between the intermediate terminal and ground. The voltage regulator includes a low-side driver circuit including a capacitor and an inverter. The output of the inverter is connected to the gate of the low-side transistor. The voltage regulator also includes a controller that drives the high-side and low-side transistors to alternately couple the intermediate terminal to the input terminal and ground. The controller is configured to drive the low-side transistor by controlling the inverter. The voltage regulator further includes a switch coupled to the low-side driver circuit. The switch is configured to block charge leakage out of the capacitor during an off state of the low-side transistor.Type: GrantFiled: September 28, 2015Date of Patent: December 19, 2017Assignee: Volterra Semiconductor LLCInventors: Chiteh Chiang, Marco A. Zuniga, Yang Lu
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Publication number: 20170338731Abstract: A voltage regulator includes a high-side device, a low-side device, and a controller. The high-side device includes first and second transistors each coupled between an input terminal and an intermediate terminal, where the first transistor has a higher breakdown voltage than the second transistor. The low-side device is coupled between the intermediate terminal and a ground terminal. The controller is configured to drive the high-side and low-side devices to (a) alternately couple the intermediate terminal to the input terminal and the ground terminal and (b) cause the first transistor to control a voltage across the second transistor during switching transitions of the second transistor.Type: ApplicationFiled: July 28, 2017Publication date: November 23, 2017Inventors: Marco A. Zuniga, Chiteh Chiang, Yang Lu, Badredin Fatemizadeh, Amit Paul, Jun Ruan, Craig Cassella
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Patent number: 9722483Abstract: A voltage regulator has an input terminal and a ground terminal. The voltage regulator includes a high-side device, a low side device, and a controller. The high-side device is coupled between the input terminal and an intermediate terminal. The high-side device includes first and second transistors each coupled between the input terminal and the intermediate terminal, such that the first transistor controls a drain-source switching voltage of the second transistor. The low-side device is coupled between the intermediate terminal and the ground terminal. The controller drives the high-side and low-side devices to alternately couple the intermediate terminal to the input terminal and the ground terminal.Type: GrantFiled: March 14, 2014Date of Patent: August 1, 2017Assignee: Volterra Semiconductor LLCInventors: Marco A. Zuniga, Chiteh Chiang, Yang Lu, Badredin Fatemizadeh, Amit Paul, Jun Ruan, Craig Cassella
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Publication number: 20170125335Abstract: Various applications of interconnect substrates in power management systems are described.Type: ApplicationFiled: December 9, 2016Publication date: May 4, 2017Inventors: Mihalis Michael, Kwang Hong Tan, Ilija Jergovic, Chiteh Chiang, Anthony J. Stratakos
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Patent number: 9520342Abstract: Various applications of interconnect substrates in power management systems are described.Type: GrantFiled: June 29, 2015Date of Patent: December 13, 2016Assignee: Volterra Semiconductor CorporationInventors: Mihalis Michael, Kwang Hong Tan, Ilija Jergovic, Chiteh Chiang, Anthony Stratakos
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Publication number: 20160020698Abstract: The subject matter of this document can be embodied in a method that includes a voltage regulator having an input terminal and an output terminal. The voltage regulator includes a high-side transistor between the input terminal and an intermediate terminal, and a low-side transistor between the intermediate terminal and ground. The voltage regulator includes a low-side driver circuit including a capacitor and an inverter. The output of the inverter is connected to the gate of the low-side transistor. The voltage regulator also includes a controller that drives the high-side and low-side transistors to alternately couple the intermediate terminal to the input terminal and ground. The controller is configured to drive the low-side transistor by controlling the inverter. The voltage regulator further includes a switch coupled to the low-side driver circuit. The switch is configured to block charge leakage out of the capacitor during an off state of the low-side transistor.Type: ApplicationFiled: September 28, 2015Publication date: January 21, 2016Inventors: Chiteh Chiang, Marco A. Zuniga, Yang Lu
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Patent number: 9178408Abstract: This document describes systems and techniques related to voltage regulators. The subject matter of this document can be embodied in a method that includes measuring an output current of a switching regulator. The switching regulator includes a high-side transistor and a low side-transistor wherein the high-side transistor and the low-side transistor are driven using a first gate voltage and a second, different gate voltage, respectively. The method also includes adjusting a direct-current (DC) voltage source of the switching regulator such that the first gate voltage is adjusted in accordance with the measured output current.Type: GrantFiled: March 14, 2013Date of Patent: November 3, 2015Assignee: Volterra Semiconductor LLCInventors: Marco A. Zuniga, Chiteh Chiang, William Numann, Yang Lu, Jun Ruan
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Publication number: 20150303132Abstract: Various applications of interconnect substrates in power management systems are described.Type: ApplicationFiled: June 29, 2015Publication date: October 22, 2015Inventors: Mihalis Michael, Kwang Hong Tan, Ilija Jergovic, Chiteh Chiang, Anthony Stratakos
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Patent number: 9148054Abstract: The subject matter of this document can be embodied in a method that includes a voltage regulator having an input terminal and an output terminal. The voltage regulator includes a high-side transistor between the input terminal and an intermediate terminal, and a low-side transistor between the intermediate terminal and ground. The voltage regulator includes a low-side driver circuit including a capacitor and an inverter. The output of the inverter is connected to the gate of the low-side transistor. The voltage regulator also includes a controller that drives the high-side and low-side transistors to alternately couple the intermediate terminal to the input terminal and ground. The controller is configured to drive the low-side transistor by controlling the inverter. The voltage regulator further includes a switch coupled to the low-side driver circuit. The switch is configured to block charge leakage out of the capacitor during an off state of the low-side transistor.Type: GrantFiled: March 14, 2013Date of Patent: September 29, 2015Assignee: Volterra Semiconductor LLCInventors: Chiteh Chiang, Marco A. Zuniga, Yang Lu
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Patent number: 9099340Abstract: Various applications of interconnect substrates in power management systems are described.Type: GrantFiled: October 4, 2012Date of Patent: August 4, 2015Assignee: Volterra Semiconductor CorporationInventors: Mihalis Michael, Kwang Hong Tan, Ilija Jergovic, Chiteh Chiang, Anthony Stratakos
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Publication number: 20140266113Abstract: A voltage regulator has an input terminal and a ground terminal. The voltage regulator includes a high-side device, a low side device, and a controller. The high-side device is coupled between the input terminal and an intermediate terminal. The high-side device includes first and second transistors each coupled between the input terminal and the intermediate terminal, such that the first transistor controls a drain-source switching voltage of the second transistor. The low-side device is coupled between the intermediate terminal and the ground terminal. The controller drives the high-side and low-side devices to alternately couple the intermediate terminal to the input terminal and the ground terminal.Type: ApplicationFiled: March 14, 2014Publication date: September 18, 2014Applicant: Volterra Semiconductor CorporationInventors: Marco A. Zuniga, Chiteh Chiang, Yang Lu, Badredin Fatemizadeh, Amit Paul, Jun Ruan, Craig Cassella
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Publication number: 20140266130Abstract: The subject matter of this document can be embodied in a method that includes a voltage regulator having an input terminal and an output terminal. The voltage regulator includes a high-side transistor between the input terminal and an intermediate terminal, and a low-side transistor between the intermediate terminal and ground. The voltage regulator includes a low-side driver circuit including a capacitor and an inverter. The output of the inverter is connected to the gate of the low-side transistor. The voltage regulator also includes a controller that drives the high-side and low-side transistors to alternately couple the intermediate terminal to the input terminal and ground. The controller is configured to drive the low-side transistor by controlling the inverter. The voltage regulator further includes a switch coupled to the low-side driver circuit. The switch is configured to block charge leakage out of the capacitor during an off state of the low-side transistor.Type: ApplicationFiled: March 14, 2013Publication date: September 18, 2014Applicant: VOLTERRA SEMICONDUCTOR CORPORATIONInventors: Chiteh Chiang, Marco A. Zuniga, Yang Lu
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Publication number: 20140266091Abstract: This document describes systems and techniques related to voltage regulators. The subject matter of this document can be embodied in a method that includes measuring an output current of a switching regulator. The switching regulator includes a high-side transistor and a low side-transistor wherein the high-side transistor and the low-side transistor are driven using a first gate voltage and a second, different gate voltage, respectively. The method also includes adjusting a direct-current (DC) voltage source of the switching regulator such that the first gate voltage is adjusted in accordance with the measured output current.Type: ApplicationFiled: March 14, 2013Publication date: September 18, 2014Applicant: Volterra Semiconductor CorporationInventors: Marco A. Zuniga, Chiteh Chiang, William Numann, Yang Lu, Jun Ruan