Patents by Inventor W. Scott Hunter
W. Scott Hunter 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: 20230291335Abstract: A system is for a machine having an alternating current (AC) power source with a first side and a second side, one or more windings, an AC polarity detector, a Hall effect device, two or more pairs of power switches, and a motor controller. The motor controller determines which of the power switches to open or close to obtain a direction of current flow through the one or more windings based on signals from the AC polarity detector and the Hall effect device.Type: ApplicationFiled: April 19, 2023Publication date: September 14, 2023Applicant: QM Power, Inc.Inventors: Charles J. FLYNN, Cooper N. Tracy, W. Scott Hunter, Stephen B. Nichols
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Patent number: 11683034Abstract: A system and method for high speed switching comprises receiving voltage inputs at a bridge rectifier, generating a control signal from a transistor, and driving a gate of a field effect transistor (FET) via the control signal of the transistor, wherein a source of the FET is connected to a negative output of the bridge rectifier and a drain of the FET is connected to a positive output of the bridge rectifier through a load. The system and method further comprises limiting current flowing to the gate of the FET through first and second resistors and first and second diodes connecting the voltage inputs to the gate of the FET and limiting voltage to the gate of the FET below a maximum voltage rating of the FET by a Zener diode connected to the gate of the FET.Type: GrantFiled: June 9, 2022Date of Patent: June 20, 2023Assignee: QM POWER, INC.Inventors: Charles J. Flynn, Cooper Tracy, W. Scott Hunter
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Publication number: 20230179128Abstract: Systems and methods are for a machine having an alternating current (AC) power source with a first side and a second side, at least one winding, a voltage polarity sensor, a Hall effect sensor, four bi-directional power switches each comprising two DC power switches, and a motor controller. The motor controller is configured to, based on signals from the voltage polarity sensor and the Hall effect sensor, opens or closes or operates with pulse-width modulation the DC power switches to obtain a first direction of current flow through the at least one winding and a second direction of current flow from the first side of the AC power source to the second side of the AC power source or from the second side of the AC power source to the first side of the AC power source.Type: ApplicationFiled: December 7, 2022Publication date: June 8, 2023Inventors: W. Scott HUNTER, Noah TURNER, Akshay Surendra KULKARNI, Prasanth Kumar SAHU, David LEACH
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Patent number: 11664750Abstract: A system is for a machine having an alternating current (AC) power source with a first side and a second side, one or more windings, an AC polarity detector, a Hall effect device, two or more pairs of power switches, and a motor controller. The motor controller determines which of the power switches to open or close to obtain a direction of current flow through the one or more windings based on signals from the AC polarity detector and the Hall effect device.Type: GrantFiled: June 30, 2021Date of Patent: May 30, 2023Assignee: QM POWER, INC.Inventors: Charles J. Flynn, Cooper N. Tracy, W. Scott Hunter, Stephen B. Nichols
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Publication number: 20220302916Abstract: A system and method for high speed switching comprises receiving voltage inputs at a bridge rectifier, generating a control signal from a transistor, and driving a gate of a field effect transistor (FET) via the control signal of the transistor, wherein a source of the FET is connected to a negative output of the bridge rectifier and a drain of the FET is connected to a positive output of the bridge rectifier through a load. The system and method further comprises limiting current flowing to the gate of the FET through first and second resistors and first and second diodes connecting the voltage inputs to the gate of the FET and limiting voltage to the gate of the FET below a maximum voltage rating of the FET by a Zener diode connected to the gate of the FET.Type: ApplicationFiled: June 9, 2022Publication date: September 22, 2022Inventors: Charles J. FLYNN, Cooper TRACY, W. Scott HUNTER
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Patent number: 11387827Abstract: A system and method for high speed switching comprises receiving voltage inputs at a bridge rectifier, generating a control signal from a transistor, and driving a gate of a field effect transistor (FET) via the control signal of the transistor, wherein a source of the FET is connected to a negative output of the bridge rectifier and a drain of the FET is connected to a positive output of the bridge rectifier through a load. The system and method further comprises limiting current flowing to the gate of the FET through first and second resistors and first and second diodes connecting the voltage inputs to the gate of the FET and limiting voltage to the gate of the FET below a maximum voltage rating of the FET by a Zener diode connected to the gate of the FET.Type: GrantFiled: February 9, 2021Date of Patent: July 12, 2022Assignee: QM Power, Inc.Inventors: Charles J. Flynn, Cooper N. Tracy, W. Scott Hunter
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Publication number: 20210328530Abstract: A system is for a machine having an alternating current (AC) power source with a first side and a second side, one or more windings, an AC polarity detector, a Hall effect device, two or more pairs of power switches, and a motor controller. The motor controller determines which of the power switches to open or close to obtain a direction of current flow through the one or more windings based on signals from the AC polarity detector and the Hall effect device.Type: ApplicationFiled: June 30, 2021Publication date: October 21, 2021Applicant: QM Power, Inc.Inventors: Charles J. Flynn, Cooper N. Tracy, W. Scott Hunter, Stephen B. Nichols
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Patent number: 11081983Abstract: A method is for a machine having an alternating current (AC) power source with a first side (L1) and a second side (L2), two or more pairs of power switches, and one or more windings. The method comprises closing one pair of power switches by a control circuit to cause current to flow from a first side of the AC power source, through the one or more windings, and to the second side of the AC power source and closing another pair of power switches by the control circuit to cause current to flow from the second side of the AC power source, through the one or more windings, and to the first side of the AC power source.Type: GrantFiled: October 25, 2019Date of Patent: August 3, 2021Assignee: QM Power, Inc.Inventors: Charles J. Flynn, Cooper N. Tracy, W. Scott Hunter, Stephen B. Nichols
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Publication number: 20210167776Abstract: A system and method for high speed switching comprises receiving voltage inputs at a bridge rectifier, generating a control signal from a transistor, and driving a gate of a field effect transistor (FET) via the control signal of the transistor, wherein a source of the FET is connected to a negative output of the bridge rectifier and a drain of the FET is connected to a positive output of the bridge rectifier through a load. The system and method further comprises limiting current flowing to the gate of the FET through first and second resistors and first and second diodes connecting the voltage inputs to the gate of the FET and limiting voltage to the gate of the FET below a maximum voltage rating of the FET by a Zener diode connected to the gate of the FET.Type: ApplicationFiled: February 9, 2021Publication date: June 3, 2021Applicant: QM Power, Inc.Inventors: Charles J. Flynn, Cooper N. Tracy, W. Scott Hunter
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Publication number: 20200067431Abstract: A method is for a machine having an alternating current (AC) power source with a first side (L1) and a second side (L2), two or more pairs of power switches, and one or more windings. The method comprises closing one pair of power switches by a control circuit to cause current to flow from a first side of the AC power source, through the one or more windings, and to the second side of the AC power source and closing another pair of power switches by the control circuit to cause current to flow from the second side of the AC power source, through the one or more windings, and to the first side of the AC power source.Type: ApplicationFiled: October 25, 2019Publication date: February 27, 2020Inventors: Charles J. Flynn, Cooper N. Tracy, W. Scott Hunter, Stephen B. Nichols
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Patent number: 10461671Abstract: A multispeed alternating current (AC) machine circuit is for an AC power source having a first side and a second side. The AC machine circuit includes two or more pairs of power switches, one or more windings, and a control circuit to close one pair of power switches to cause current to flow from a first side of the AC power source, through the one or more windings, to the second side of the AC power source and to close the other pair of power switches to cause current to flow from the second side of the AC power source, through the one or more windings, to the first side of the AC power source.Type: GrantFiled: March 29, 2018Date of Patent: October 29, 2019Assignee: QM Power, Inc.Inventors: Charles J. Flynn, Cooper N. Tracy, W. Scott Hunter, Stephen B. Nichols
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Publication number: 20180287522Abstract: A multispeed alternating current (AC) machine circuit is for an AC power source having a first side and a second side. The AC machine circuit includes two or more pairs of power switches, one or more windings, and a control circuit to close one pair of power switches to cause current to flow from a first side of the AC power source, through the one or more windings, to the second side of the AC power source and to close the other pair of power switches to cause current to flow from the second side of the AC power source, through the one or more windings, to the first side of the AC power source.Type: ApplicationFiled: March 29, 2018Publication date: October 4, 2018Inventors: Charles J. Flynn, Cooper N. Tracy, W. Scott Hunter, Stephen B. Nichols
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Patent number: 9948227Abstract: A circuit for a motor comprises at least two phase windings forming one half of motor phase windings of the circuit and at least two other phase windings forming another half of the motor phase windings of the circuit. A direct current (DC) power supply receives alternating current (AC) power transferred from one or more of the motor phase windings and converts the AC power to DC power. A first stage power switch circuit comprising at least one power switch is connected between the at least two phase windings on the one half of the motor phase windings of the circuit and between the at least two other phase windings on the other half of the motor phase windings of the circuit. A second stage power switch circuit comprising at least one other power switch is connected between the one half of the motor phase windings of the circuit and the other half of the motor phase windings of the circuit, the at least one other power switch to receive AC power from one or more of the motor phase windings.Type: GrantFiled: July 17, 2017Date of Patent: April 17, 2018Assignee: QM Power, Inc.Inventors: Charles J. Flynn, Cooper N. Tracy, W. Scott Hunter
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Publication number: 20170317634Abstract: A circuit for a motor comprises at least two phase windings forming one half of motor phase windings of the circuit and at least two other phase windings forming another half of the motor phase windings of the circuit. A direct current (DC) power supply receives alternating current (AC) power transferred from one or more of the motor phase windings and converts the AC power to DC power. A first stage power switch circuit comprising at least one power switch is connected between the at least two phase windings on the one half of the motor phase windings of the circuit and between the at least two other phase windings on the other half of the motor phase windings of the circuit. A second stage power switch circuit comprising at least one other power switch is connected between the one half of the motor phase windings of the circuit and the other half of the motor phase windings of the circuit, the at least one other power switch to receive AC power from one or more of the motor phase windings.Type: ApplicationFiled: July 17, 2017Publication date: November 2, 2017Inventors: Charles J. Flynn, Cooper N. Tracy, W. Scott Hunter
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Patent number: 9712099Abstract: A phase windings circuit for a motor includes at least two phase windings forming one half of motor phase windings of the circuit and at least two other phase windings forming another half of the motor phase windings of the circuit. A direct current (DC) power supply is located at least approximately at a midpoint of the motor phase windings to receive alternating current (AC) power transferred from one or more of the phase windings and convert the AC power to DC power. A first stage power switch circuit comprises at least one power switch outside of the DC power supply and is electrically connected at least approximately at a midpoint between phase windings on each half of the circuit. A second stage power switch circuit comprises at least one other power switch outside of the DC power supply and is electrically connected at least approximately at the midpoint of the divided phase windings to receive AC power from the motor divided phase windings.Type: GrantFiled: August 7, 2015Date of Patent: July 18, 2017Assignee: QM Power, Inc.Inventors: Charles J. Flynn, Cooper N. Tracy, W. Scott Hunter
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Publication number: 20160043682Abstract: A phase windings circuit for a motor includes at least two phase windings forming one half of motor phase windings of the circuit and at least two other phase windings forming another half of the motor phase windings of the circuit. A direct current (DC) power supply is located at least approximately at a midpoint of the motor phase windings to receive alternating current (AC) power transferred from one or more of the phase windings and convert the AC power to DC power. A first stage power switch circuit comprises at least one power switch outside of the DC power supply and is electrically connected at least approximately at a midpoint between phase windings on each half of the circuit. A second stage power switch circuit comprises at least one other power switch outside of the DC power supply and is electrically connected at least approximately at the midpoint of the divided phase windings to receive AC power from the motor divided phase windings.Type: ApplicationFiled: August 7, 2015Publication date: February 11, 2016Inventors: Charles J. Flynn, Cooper N. Tracy, W. Scott Hunter