Patents by Inventor Owen Jong
Owen Jong 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: 11979081Abstract: A current sensing technique for coupled inductors in switching regulator circuits, where the current sensing technique can provide the current information needed for a power converter design and can be implemented as a real-world solution. The current sensing techniques can provide complete information of the coupled inductor current, such as peak current, valley current, and intermediate ripples. The current sensing techniques can use a simple RC network, such as two resistors and two capacitors for 2-phase operation. The techniques, however, are not limited to two-phase operation. The current sensing techniques of this disclosure can be extended to power stage assembly implementations, e.g., DrMOS modules, with current output in order to increase signal-to-noise ratio, which is significant for reliable control. in addition, the current sensing techniques of this disclosure can be extended to multi-phase operation, such as three or more phases.Type: GrantFiled: April 6, 2022Date of Patent: May 7, 2024Assignee: Analog Devices, Inc.Inventors: Owen Jong, Yingyi Yan, Ya Liu, Jindong Zhang
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Publication number: 20230318430Abstract: Several current sensing techniques are described that may be used to obtain an accurate current signal, which may help to achieve the best performance with a trans-inductor voltage regulator (TLVR) topology. The techniques may have the coupling effect from the secondary side included, so the current sensing signal is accurate for the regulation and other functions related to the current signal. The current sensing techniques may have more accurate gain and phase information in the middle frequency and high frequency ranges. The coupling effect from the secondary side may be well represented in the current sensing signal. The advantages of TLVR topology may be enhanced with accurate current information.Type: ApplicationFiled: April 1, 2022Publication date: October 5, 2023Inventors: Xuebing Chen, Owen Jong, Ya Liu, Jindong Zhang, Mark Frederick Hartman
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Patent number: 11699953Abstract: Methods, systems, and apparatuses for efficient power supply and voltage division are described. Specifically, the described zero-voltage switching hybrid voltage divider (ZVS-HVD) may implement capacitor-inductor switching (e.g., a capacitor-inductor switching combination) to provide a zero-voltage switching bidirectional voltage divider converter. The ZVD-HVD may be implemented, in the example of a two-to-one ratio divider, via a configuration of three switches, three capacitors, and two small size inductors (e.g., to achieve zero voltage switching in any condition). In some examples, the ZVS-HVD may be realized via two of the switches sharing a same switching signal (e.g., the two-to-one ratio divider example of the described ZVS-HVD may be associated with two circuit states via the three switches). The described ZVS-HVD may support continuous input current, parallelizability, insensitivity to parasitic inductance, and high efficiency (e.g., reduced energy loss) at light load, among other features.Type: GrantFiled: June 4, 2021Date of Patent: July 11, 2023Assignee: Cal Poly CorporationInventors: Taufik, Owen Jong
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Patent number: 11652415Abstract: A current sensing technique for coupled inductors in switching regulator circuits, where the current sensing technique can provide the current information needed for a power converter design and can be implemented as a real-world solution. The current sensing techniques can provide complete information of the coupled inductor current, such as peak current, valley current, and intermediate ripples. The current sensing techniques can use a simple RC network, such as two resistors and two capacitors for 2-phase operation. The techniques, however, are not limited to two-phase operation. The current sensing techniques of this disclosure can be extended to power stage assembly implementations, e.g., DrMOS modules, with current output in order to increase signal-to-noise ratio, which is significant for reliable control. In addition, the current sensing techniques of this disclosure can be extended to multi-phase operation, such as three or more phases.Type: GrantFiled: May 19, 2021Date of Patent: May 16, 2023Assignee: Analog Devices, Inc.Inventors: Owen Jong, Yingyi Yan, Ya Liu, Jindong Zhang
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Patent number: 11601049Abstract: A multi-phase hybrid DC-DC converter using a switched-capacitor technique is described. The multi-phase hybrid converter can reduce the volt-seconds on the inductors of the converter, which can allow for a reduction in the size of the inductors. In addition, the multi-phase hybrid converter can utilize inductors as current sources to charge and discharge the flying capacitors, which can reduce the size of the mid capacitor and increase solution density. Because charging and discharging are performed by inductors, the multi-phase hybrid converter can eliminate the capacitor-to-capacitor charge transfer. As such, the multi-phase hybrid converter does not need high capacitance to achieve high efficiency operation, which can further increase solution density.Type: GrantFiled: July 14, 2021Date of Patent: March 7, 2023Assignee: Analog Devices, Inc.Inventors: Owen Jong, Ya Liu, Yingyi Yan, Jindong Zhang
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Patent number: 11594956Abstract: A dual-phase hybrid DC-DC converter using a switched-capacitor technique is described. The dual-phase hybrid converter can reduce the volt-seconds on the inductors of the converter, which can allow for a reduction in the size of the inductors. In addition, the dual-phase hybrid converter can utilize inductors as current sources to charge and discharge the flying capacitors, which can reduce the size of the mid capacitor and increase solution density. Because charging and discharging are performed by inductors, the dual-phase hybrid converter can eliminate the capacitor-to-capacitor charge transfer. As such, the dual-phase hybrid converter does not need high capacitance to achieve high efficiency operation, which can further increase solution density.Type: GrantFiled: January 19, 2021Date of Patent: February 28, 2023Assignee: Analog Devices, Inc.Inventors: Owen Jong, Ya Liu, Yingyi Yan
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Publication number: 20220376620Abstract: A current sensing technique for coupled inductors in switching regulator circuits, where the current sensing technique can provide the current information needed for a power converter design and can be implemented as a real-world solution. The current sensing techniques can provide complete information of the coupled inductor current, such as peak current, valley current, and intermediate ripples. The current sensing techniques can use a simple RC network, such as two resistors and two capacitors for 2-phase operation. The techniques, however, are not limited to two-phase operation. The current sensing techniques of this disclosure can be extended to power stage assembly implementations, e.g., DrMOS modules, with current output in order to increase signal-to-noise ratio, which is significant for reliable control. In addition, the current sensing techniques of this disclosure can be extended to multi-phase operation, such as three or more phases.Type: ApplicationFiled: May 19, 2021Publication date: November 24, 2022Inventors: Owen Jong, Yingyi Yan, Ya Liu, Jindong Zhang
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Publication number: 20220376600Abstract: A current sensing technique for coupled inductors in switching regulator circuits, where the current sensing technique can provide the current information needed for a power converter design and can be implemented as a real-world solution. The current sensing techniques can provide complete information of the coupled inductor current, such as peak current, valley current, and intermediate ripples. The current sensing techniques can use a simple RC network, such as two resistors and two capacitors for 2-phase operation. The techniques, however, are not limited to two-phase operation. The current sensing techniques of this disclosure can be extended to power stage assembly implementations, e.g., DrMOS modules, with current output in order to increase signal-to-noise ratio, which is significant for reliable control. in addition, the current sensing techniques of this disclosure can be extended to multi-phase operation, such as three or more phases.Type: ApplicationFiled: April 6, 2022Publication date: November 24, 2022Inventors: Owen Jong, Yingyi Yan, Ya Liu, Jindong Zhang
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Publication number: 20220231600Abstract: A dual-phase hybrid DC-DC converter using a switched-capacitor technique is described. The dual-phase hybrid converter can reduce the volt-seconds on the inductors of the converter, which can allow for a reduction in the size of the inductors. In addition, the dual-phase hybrid converter can utilize inductors as current sources to charge and discharge the flying capacitors, which can reduce the size of the mid capacitor and increase solution density. Because charging and discharging are performed by inductors, the dual-phase hybrid converter can eliminate the capacitor-to-capacitor charge transfer. As such, the dual-phase hybrid converter does not need high capacitance to achieve high efficiency operation, which can further increase solution density.Type: ApplicationFiled: January 19, 2021Publication date: July 21, 2022Inventors: Owen Jong, Ya Liu, Yingyi Yan
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Publication number: 20220231601Abstract: A multi-phase hybrid DC-DC converter using a switched-capacitor technique is described. The multi-phase hybrid converter can reduce the volt-seconds on the inductors of the converter, which can allow for a reduction in the size of the inductors. In addition, the multi-phase hybrid converter can utilize inductors as current sources to charge and discharge the flying capacitors, which can reduce the size of the mid capacitor and increase solution density. Because charging and discharging are performed by inductors, the multi-phase hybrid converter can eliminate the capacitor-to-capacitor charge transfer. As such, the multi-phase hybrid converter does not need high capacitance to achieve high efficiency operation, which can further increase solution density.Type: ApplicationFiled: July 14, 2021Publication date: July 21, 2022Inventors: Owen Jong, Ya Liu, Yingyi Yan, Jindong Zhang
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Publication number: 20210408904Abstract: Methods, systems, and apparatuses for efficient power supply and voltage division are described. Specifically, the described zero-voltage switching hybrid voltage divider (ZVS-HVD) may implement capacitor-inductor switching (e.g., a capacitor-inductor switching combination) to provide a zero-voltage switching bidirectional voltage divider converter. The ZVD-HVD may be implemented, in the example of a two-to-one ratio divider, via a configuration of three switches, three capacitors, and two small size inductors (e.g., to achieve zero voltage switching in any condition). In some examples, the ZVS-HVD may be realized via two of the switches sharing a same switching signal (e.g., the two-to-one ratio divider example of the described ZVS-HVD may be associated with two circuit states via the three switches). The described ZVS-HVD may support continuous input current, parallelizability, insensitivity to parasitic inductance, and high efficiency (e.g., reduced energy loss) at light load, among other features.Type: ApplicationFiled: June 4, 2021Publication date: December 30, 2021Inventors: Taufik, Owen Jong
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Patent number: 10658928Abstract: Various examples are provided related to switched-capacitor converters (SCCs) with multi resonant frequencies. In one example, a multi resonant SCC (MRSCC) includes a series of switches coupled between an input voltage and an output connection; a pair of diodes coupled across the output connection; and a resonant circuit coupled at a first end between first and second switches of the series of switches and at a second end between the pair of diodes. The resonant circuit can comprise a resonant tank including a first capacitor and a resonant inductor, and a resonant component in parallel with at least a portion of the resonant tank. The resonant component can be connected across the resonant tank or across the resonant inductor. The MRSCC topology can also be used with higher voltage conversion ratio converters.Type: GrantFiled: April 1, 2019Date of Patent: May 19, 2020Assignee: Virginia Tech Intellectual Properties, Inc.Inventors: Owen Jong, Qiang Li, Fred C. Lee
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Publication number: 20190334434Abstract: Various examples are provided related to switched-capacitor converters (SCCs) with multi resonant frequencies. In one example, a multi resonant SCC (MRSCC) includes a series of switches coupled between an input voltage and an output connection; a pair of diodes coupled across the output connection; and a resonant circuit coupled at a first end between first and second switches of the series of switches and at a second end between the pair of diodes. The resonant circuit can comprise a resonant tank including a first capacitor and a resonant inductor, and a resonant component in parallel with at least a portion of the resonant tank. The resonant component can be connected across the resonant tank or across the resonant inductor. The MRSCC topology can also be used with higher voltage conversion ratio converters.Type: ApplicationFiled: April 1, 2019Publication date: October 31, 2019Inventors: Owen Jong, Qiang Li, Fred C. Lee
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Patent number: 10404061Abstract: A system, method and apparatus of balancing a direct current load across a multiple direct current power sources includes receiving multiple direct current inputs to the inputs of a multiple input, single output DC to DC converter. The output current of each one of the direct current inputs is compared to a reference current. The direct current inputs are adjusted in corresponding DC to DC converter modules until the output current of each one of the direct current inputs is equal to the reference current. The adjusted output of the DC to DC converter modules is combined to a single output current that can be output to supply the single output current to a load.Type: GrantFiled: July 20, 2016Date of Patent: September 3, 2019Inventors: Taufik Taufik, Owen Jong
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Publication number: 20180026441Abstract: A system, method and apparatus of balancing a direct current load across a multiple direct current power sources includes receiving multiple direct current inputs to the inputs of a multiple input, single output DC to DC converter. The output current of each one of the direct current inputs is compared to a reference current. The direct current inputs are adjusted in corresponding DC to DC converter modules until the output current of each one of the direct current inputs is equal to the reference current. The adjusted output of the DC to DC converter modules is combined to a single output current that can be output to supply the single output current to a load.Type: ApplicationFiled: July 20, 2016Publication date: January 25, 2018Inventors: Taufik Taufik, Owen Jong