Patents by Inventor James Honea
James Honea 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: 9991884Abstract: A circuit includes an electronic component package that comprises at least a first lead, a III-N device in the electronic component package, a gate driver, and a ferrite bead. The III-N device comprises a drain, gate, and source, where the source is coupled to the first lead. The gate driver comprises a first terminal and a second terminal, where the first terminal is coupled to the first lead. The ferrite bead is coupled between the gate of the III-N transistor and the second terminal of the gate driver. When switching, the deleterious effects of the parasitic inductance of the circuit gate loop are mitigated by the ferrite bead.Type: GrantFiled: April 19, 2017Date of Patent: June 5, 2018Assignee: Transphorm Inc.Inventors: Zhan Wang, Yifeng Wu, James Honea
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Patent number: 9899998Abstract: A half bridge is described with at least one transistor having a channel that is capable in a first mode of operation of blocking a substantial voltage in at least one direction, in a second mode of operation of conducting substantial current in one direction through the channel and in a third mode of operation of conducting substantial current in an opposite direction through the channel. The half bridge can have two circuits with such a transistor.Type: GrantFiled: November 12, 2014Date of Patent: February 20, 2018Assignee: Transphorm Inc.Inventors: James Honea, Yifeng Wu
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Patent number: 9866210Abstract: A half bridge is described with at least one transistor having a channel that is capable in a first mode of operation of blocking a substantial voltage in at least one direction, in a second mode of operation of conducting substantial current in one direction through the channel and in a third mode of operation of conducting substantial current in an opposite direction through the channel. The half bridge can have two circuits with such a transistor.Type: GrantFiled: November 12, 2014Date of Patent: January 9, 2018Assignee: Transphorm Inc.Inventors: James Honea, Yifeng Wu
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Patent number: 9819336Abstract: A half bridge is described with at least one transistor having a channel that is capable in a first mode of operation of blocking a substantial voltage in at least one direction, in a second mode of operation of conducting substantial current in one direction through the channel and in a third mode of operation of conducting substantial current in an opposite direction through the channel. The half bridge can have two circuits with such a transistor.Type: GrantFiled: November 12, 2014Date of Patent: November 14, 2017Assignee: Transphorm Inc.Inventors: James Honea, Yifeng Wu
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Publication number: 20170222640Abstract: A circuit includes an electronic component package that comprises at least a first lead, a III-N device in the electronic component package, a gate driver, and a ferrite bead. The III-N device comprises a drain, gate, and source, where the source is coupled to the first lead. The gate driver comprises a first terminal and a second terminal, where the first terminal is coupled to the first lead. The ferrite bead is coupled between the gate of the III-N transistor and the second terminal of the gate driver. When switching, the deleterious effects of the parasitic inductance of the circuit gate loop are mitigated by the ferrite bead.Type: ApplicationFiled: April 19, 2017Publication date: August 3, 2017Inventors: Zhan Wang, Yifeng Wu, James Honea
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Patent number: 9690314Abstract: Power switching circuits including an inductive load and a switching device are described. The switches devices can be either low-side or high-side switches. Some of the switches are transistors that are able to block voltages or prevent substantial current from flowing through the transistor when voltage is applied across the transistor.Type: GrantFiled: July 16, 2014Date of Patent: June 27, 2017Assignee: Transphorm Inc.Inventors: James Honea, Yifeng Wu
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Patent number: 9660640Abstract: A circuit includes an electronic component package that comprises at least a first lead, a III-N device in the electronic component package, a gate driver, and a ferrite bead. The III-N device comprises a drain, gate, and source, where the source is coupled to the first lead. The gate driver comprises a first terminal and a second terminal, where the first terminal is coupled to the first lead. The ferrite bead is coupled between the gate of the III-N transistor and the second terminal of the gate driver. When switching, the deleterious effects of the parasitic inductance of the circuit gate loop are mitigated by the ferrite bead.Type: GrantFiled: November 29, 2016Date of Patent: May 23, 2017Assignee: Transphorm Inc.Inventors: Zhan Wang, Yifeng Wu, James Honea
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Publication number: 20170085258Abstract: A circuit includes an electronic component package that comprises at least a first lead, a III-N device in the electronic component package, a gate driver, and a ferrite bead. The III-N device comprises a drain, gate, and source, where the source is coupled to the first lead. The gate driver comprises a first terminal and a second terminal, where the first terminal is coupled to the first lead. The ferrite bead is coupled between the gate of the III-N transistor and the second terminal of the gate driver. When switching, the deleterious effects of the parasitic inductance of the circuit gate loop are mitigated by the ferrite bead.Type: ApplicationFiled: November 29, 2016Publication date: March 23, 2017Inventors: Zhan Wang, Yifeng Wu, James Honea
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Patent number: 9543940Abstract: A circuit includes an electronic component package that comprises at least a first lead, a III-N device in the electronic component package, a gate driver, and a ferrite bead. The III-N device comprises a drain, gate, and source, where the source is coupled to the first lead. The gate driver comprises a first terminal and a second terminal, where the first terminal is coupled to the first lead. The ferrite bead is coupled between the gate of the III-N transistor and the second terminal of the gate driver. When switching, the deleterious effects of the parasitic inductance of the circuit gate loop are mitigated by the ferrite bead.Type: GrantFiled: July 3, 2014Date of Patent: January 10, 2017Assignee: Transphorm Inc.Inventors: Zhan Wang, Yifeng Wu, James Honea
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Patent number: 9537425Abstract: A multilevel inverter includes a first half bridge in series with a second half bridge, each comprising a switch having a channel. The switch is configured to block a substantial voltage in a first direction during a first mode of operation, to conduct substantial current through the channel in the first direction during a second mode of operation, and to conduct substantial current through the channel in a second direction during a third mode of operation. During the third mode of operation, a gate of the switch is biased relative to a source of the switch at a voltage that is less than a threshold voltage of the switch. The inverter may also include a third half bridge. The inverter can be configured such that in operation, switches of the third half bridge are switched at a substantially lower frequency than the switches of the first and second half bridges.Type: GrantFiled: July 1, 2014Date of Patent: January 3, 2017Assignee: Transphorm Inc.Inventor: James Honea
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Patent number: 9293458Abstract: An electronic component includes a high-voltage depletion-mode transistor and a low-voltage enhancement-mode transistor both encased in a single package. A source electrode of the high-voltage depletion-mode transistor is electrically connected to a drain electrode of the low-voltage enhancement-mode transistor, a drain electrode of the high-voltage depletion-mode transistor is electrically connected to a drain lead of the single package, a gate electrode of the low-voltage enhancement-mode transistor is electrically connected to a gate lead of the single package, a gate electrode of the high-voltage depletion-mode transistor is electrically connected to an additional lead of the single package, and a source electrode of the low-voltage enhancement-mode transistor is electrically connected to a conductive structural portion of the single package.Type: GrantFiled: October 18, 2013Date of Patent: March 22, 2016Assignee: Transphorm Inc.Inventors: Primit Parikh, James Honea, Carl C. Blake, Jr., Robert Coffie, Yifeng Wu, Umesh Mishra
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Publication number: 20160006428Abstract: A circuit includes an electronic component package that comprises at least a first lead, a III-N device in the electronic component package, a gate driver, and a ferrite bead. The III-N device comprises a drain, gate, and source, where the source is coupled to the first lead. The gate driver comprises a first terminal and a second terminal, where the first terminal is coupled to the first lead. The ferrite bead is coupled between the gate of the III-N transistor and the second terminal of the gate driver. When switching, the deleterious effects of the parasitic inductance of the circuit gate loop are mitigated by the ferrite bead.Type: ApplicationFiled: July 3, 2014Publication date: January 7, 2016Inventors: Zhan Wang, Yifeng Wu, James Honea
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Patent number: 9041435Abstract: An electronic component comprising a half bridge adapted for operation with an electrical load having an operating frequency is described. The half bridge comprises a first switch and a second switch each having a switching frequency, the first switch and the second switch each including a first terminal, a second terminal, and a control terminal, wherein the first terminal of the first switch and the second terminal of the second switch are both electrically connected to a node. The electronic component further includes a filter having a 3 dB roll-off frequency, the 3 dB roll-off frequency being less than the switching frequency of the switches but greater than the operating frequency of the electrical load. The first terminal of the filter is electrically coupled to the node, and the 3 dB roll-off frequency of the filter is greater than 5 kHz.Type: GrantFiled: June 17, 2014Date of Patent: May 26, 2015Assignee: Transphorm Inc.Inventors: James Honea, Yifeng Wu
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Publication number: 20150070076Abstract: A half bridge is described with at least one transistor having a channel that is capable in a first mode of operation of blocking a substantial voltage in at least one direction, in a second mode of operation of conducting substantial current in one direction through the channel and in a third mode of operation of conducting substantial current in an opposite direction through the channel. The half bridge can have two circuits with such a transistor.Type: ApplicationFiled: November 12, 2014Publication date: March 12, 2015Inventors: James Honea, Yifeng Wu
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Publication number: 20150016169Abstract: A multilevel inverter includes a first half bridge in series with a second half bridge, each comprising a switch having a channel. The switch is configured to block a substantial voltage in a first direction during a first mode of operation, to conduct substantial current through the channel in the first direction during a second mode of operation, and to conduct substantial current through the channel in a second direction during a third mode of operation. During the third mode of operation, a gate of the switch is biased relative to a source of the switch at a voltage that is less than a threshold voltage of the switch. The inverter may also include a third half bridge. The inverter can be configured such that in operation, switches of the third half bridge are switched at a substantially lower frequency than the switches of the first and second half bridges.Type: ApplicationFiled: July 1, 2014Publication date: January 15, 2015Inventor: James Honea
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Patent number: 8912839Abstract: A half bridge is described with at least one transistor having a channel that is capable in a first mode of operation of blocking a substantial voltage in at least one direction, in a second mode of operation of conducting substantial current in one direction through the channel and in a third mode of operation of conducting substantial current in an opposite direction through the channel. The half bridge can have two circuits with such a transistor.Type: GrantFiled: May 3, 2013Date of Patent: December 16, 2014Assignee: Transphorm Inc.Inventors: James Honea, Yifeng Wu
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Publication number: 20140327412Abstract: Power switching circuits including an inductive load and a switching device are described. The switches devices can be either low-side or high-side switches. Some of the switches are transistors that are able to block voltages or prevent substantial current from flowing through the transistor when voltage is applied across the transistor.Type: ApplicationFiled: July 16, 2014Publication date: November 6, 2014Inventors: James Honea, Yifeng Wu
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Publication number: 20140292394Abstract: An electronic component comprising a half bridge adapted for operation with an electrical load having an operating frequency is described. The half bridge comprises a first switch and a second switch each having a switching frequency, the first switch and the second switch each including a first terminal, a second terminal, and a control terminal, wherein the first terminal of the first switch and the second terminal of the second switch are both electrically connected to a node. The electronic component further includes a filter having a 3 dB roll-off frequency, the 3 dB roll-off frequency being less than the switching frequency of the switches but greater than the operating frequency of the electrical load. The first terminal of the filter is electrically coupled to the node, and the 3 dB roll-off frequency of the filter is greater than 5 kHz.Type: ApplicationFiled: June 17, 2014Publication date: October 2, 2014Inventors: James Honea, Yifeng Wu
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Patent number: 8816751Abstract: Power switching circuits including an inductive load and a switching device are described. The switches devices can be either low-side or high-side switches. Some of the switches are transistors that are able to block voltages or prevent substantial current from flowing through the transistor when voltage is applied across the transistor.Type: GrantFiled: August 5, 2013Date of Patent: August 26, 2014Assignee: Transphorm Inc.Inventors: James Honea, Yifeng Wu
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Patent number: 8786327Abstract: An electronic component comprising a half bridge adapted for operation with an electrical load having an operating frequency is described. The half bridge comprises a first switch and a second switch each having a switching frequency, the first switch and the second switch each including a first terminal, a second terminal, and a control terminal, wherein the first terminal of the first switch and the second terminal of the second switch are both electrically connected to a node. The electronic component further includes a filter having a 3 dB roll-off frequency, the 3 dB roll-off frequency being less than the switching frequency of the switches but greater than the operating frequency of the electrical load. The first terminal of the filter is electrically coupled to the node, and the 3 dB roll-off frequency of the filter is greater than 5 kHz.Type: GrantFiled: February 23, 2012Date of Patent: July 22, 2014Assignee: Transphorm Inc.Inventors: James Honea, Yifeng Wu