Patents by Inventor Brian T. Irving
Brian T. Irving 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: 10153710Abstract: A power supply includes multiple power modules and a control circuit. Input terminals of the power modules are connected in star connection such that each power module receives a phase input voltage. Output terminals of the power modules are connected in parallel. Each power modules includes a first and a second converter. The first converter converts the phase input voltage into an intermediate bus voltage. The second converter outputs a DC supply voltage according to the intermediate bus voltage. The control circuit is coupled to the power modules and configured to output first and second driving signals to control the first and second converters in the power modules. A bus voltage average value is calculated by the control circuit according to the intermediate bus voltages of the power modules, and the first and the second driving signals for the power modules are generated according to the bus voltage average value.Type: GrantFiled: July 25, 2017Date of Patent: December 11, 2018Assignee: DELTA ELECTRONICS, INC.Inventors: Peter Mantovanelli Barbosa, Laszlo Huber, Brian T. Irving
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Patent number: 9496797Abstract: A flux-balancing method for an isolated bidirectional converter uses a flux-balancing control loop and a current-balancing control loop to control the DC components in the primary and secondary currents. The flux-balancing control loop keeps the average magnetizing current substantially zero and the current-balancing control loop keeps the average primary current or the average secondary current substantially zero. The flux-balancing loop adjusts the duty ratio of a set of switches in a corresponding bridge. The adjusted duty ratio is designed to substantially eliminate the DC component in the magnetizing current. The current-balancing loop keeps the average primary current and the average secondary current substantially zero, and adjusts the duty ratio of the switches in a corresponding bridge to eliminate the corresponding DC component.Type: GrantFiled: June 13, 2014Date of Patent: November 15, 2016Assignee: DELTA ELECTRONICS, INC.Inventors: Yuri Panov, Milan M. Jovanovic, Brian T. Irving
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Patent number: 9331579Abstract: A power supply includes power modules. Each of the power modules includes an input stage configured to convert an input voltage into an intermediate voltage, and an output stage configured to output a DC supply voltage according to the intermediate voltage. Input terminals of the input stages in the plurality of power modules are electrically connected in series, and the input stages are configured to be controlled with at least one first common control signal having a common duty cycle. Output terminals of the output stages in the plurality of power modules are electrically connected in parallel, and the output stages are configured to be controlled with at least one second common control signal having a common duty cycle. A method of supplying power is also disclosed herein.Type: GrantFiled: September 17, 2014Date of Patent: May 3, 2016Assignee: DELTA ELECTRONICS, INC.Inventors: Peter Barbosa, Brian T. Irving, Chih-Chiang Chan, Yu-Ming Chang
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Publication number: 20160079859Abstract: A power supply includes power modules. Each of the power modules includes an input stage configured to convert an input voltage into an intermediate voltage, and an output stage configured to output a DC supply voltage according to the intermediate voltage. Input terminals of the input stages in the plurality of power modules are electrically connected in series, and the input stages are configured to be controlled with at least one first common control signal having a common duty cycle. Output terminals of the output stages in the plurality of power modules are electrically connected in parallel, and the output stages are configured to be controlled with at least one second common control signal having a common duty cycle. A method of supplying power is also disclosed herein.Type: ApplicationFiled: September 17, 2014Publication date: March 17, 2016Inventors: Peter BARBOSA, Brian T. IRVING, Chih-Chiang CHAN, Yu-Ming CHANG
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Patent number: 9263960Abstract: A power converter topology is adapted for efficiency according to input voltage, output voltage or output current conditions. Topology adaptation is achieved by control responsive to the input and output operating conditions, or to one or more external control signals. Transition between any two topologies is implemented by pulse width modulation in the two switches in one of two bridge legs of a full bridge converter. When transitioning from full-bridge to half-bridge topology, the duty ratio of one switch in one leg of the full bridge is increased, while simultaneously the duty ratio of the other switch in the same leg is reduced until one switch is continuously on, while the other switch is continuously off. The transition from the half-bridge to the full-bridge topology is accomplished by modulating the same switches such that, at the end of the transition, both switches operate with substantially the same duty cycle.Type: GrantFiled: September 16, 2013Date of Patent: February 16, 2016Assignee: Delta Electronics, Inc.Inventors: Milan M. Jovanović, Brian T. Irving
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Publication number: 20150365005Abstract: A flux-balancing method for an isolated bidirectional converter uses a flux-balancing control loop and a current-balancing control loop to control the DC components in the primary and secondary currents. The flux-balancing control loop keeps the average magnetizing current substantially zero and the current-balancing control loop keeps the average primary current or the average secondary current substantially zero. The flux-balancing loop adjusts the duty ratio of a set of switches in a corresponding bridge. The adjusted duty ratio is designed to substantially eliminate the DC component in the magnetizing current. The current-balancing loop keeps the average primary current and the average secondary current substantially zero, and adjusts the duty ratio of the switches in a corresponding bridge to eliminate the corresponding DC component.Type: ApplicationFiled: June 13, 2014Publication date: December 17, 2015Inventors: Yuri Panov, Milan M. Jovanovic, Brian T. Irving
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Publication number: 20150078036Abstract: A power converter topology is adapted for efficiency according to input voltage, output voltage or output current conditions. Topology adaptation is achieved by control responsive to the input and output operating conditions, or to one or more external control signals. Transition between any two topologies is implemented by pulse width modulation in the two switches in one of two bridge legs of a full bridge converter. When transitioning from full-bridge to half-bridge topology, the duty ratio of one switch in one leg of the full bridge is increased, while simultaneously the duty ratio of the other switch in the same leg is reduced until one switch is continuously on, while the other switch is continuously off. The transition from the half-bridge to the full-bridge topology is accomplished by modulating the same switches such that, at the end of the transition, both switches operate with substantially the same duty cycle.Type: ApplicationFiled: September 16, 2013Publication date: March 19, 2015Applicant: Delta Electronics, Inc.Inventors: Milan M. Jovanovic, Brian T. Irving
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Patent number: 8004260Abstract: A power supply having an specified hold-up time to take a input voltage and convert it to an output voltage, comprising: a first power stage to receive the input voltage; a second power stage to generate the output voltage and an output current; an intermediate charge storage device coupled between the first and second power conversion stages providing an intermediate output voltage in response to the input voltage; and a controller that controls the intermediate output voltage according to a voltage function that is associated with the hold-up time.Type: GrantFiled: March 26, 2009Date of Patent: August 23, 2011Assignee: DELTA Electronics, Inc.Inventors: Brian T. Irving, Milan M. Jovanović, Sheng-Hua Li, Yung Sheng Yeh, Chi-Hsing Huang
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Control method and device for a system of interleaved converters using a designated master converter
Patent number: 7884588Abstract: Control device for a switching converter structure comprising at least a first and a second interleaved converter, wherein the control device is configured to designate one converter as master and at least the other converter as slave, to set a time delay of the operating cycle of the slave converter and to synchronize the master and the at the least one slave converter.Type: GrantFiled: April 10, 2008Date of Patent: February 8, 2011Assignees: STMicroelectronics S.r.l., Delta Electronics, Inc.Inventors: Claudio Adragna, Aldo Novelli, Antonio Borrello, Laszlo Huber, Brian T. Irving, Milan M. Jovanovic -
Publication number: 20100246220Abstract: A power supply having an specified hold-up time to take a input voltage and convert it to an output voltage, comprising: a first power stage to receive the input voltage; a second power stage to generate the output voltage and an output current; an intermediate charge storage device coupled between the first and second power conversion stages providing an intermediate output voltage in response to the input voltage; and a controller that controls the intermediate output voltage according to a voltage function that is associated with the hold-up time.Type: ApplicationFiled: March 26, 2009Publication date: September 30, 2010Applicant: DELTA ELECTRONICS INC.Inventors: Brian T. Irving, Milan M. Jovanovic, Sheng-Hua Li, Yung Sheng Yeh, Chi-Hsing Huang
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Publication number: 20090257257Abstract: Control device for a switching converter structure comprising at least a first and a second interleaved converter, wherein the control device is configured to designate one converter as master and at least the other converter as slave, to set a time delay of the operating cycle of the slave converter and to synchronize the master and the at the least one slave converter.Type: ApplicationFiled: April 10, 2008Publication date: October 15, 2009Applicants: STMicroelectronics S.r.I., Delta Electronics, Inc.Inventors: Claudio Adragna, Aldo Novelli, Antonio Borrello, Laszlo Huber, Brian T. Irving, Milan M. Jovanovic