Patents by Inventor Robert Matthew Martinelli
Robert Matthew Martinelli 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: 9531190Abstract: A bi-directional converter voltage controlled current system and methods are disclosed. A bi-directional converter provides a bi-directional current to an electrical bus according to a variable duty-cycle control signal. Also, a bi-directional current sensing sensor senses the bi-directional current to provide a sensor voltage signal proportional to the converter current. Further, a variable duty-cycle controller controls a duty-cycle of the variable duty-cycle control signal to control a voltage of the electrical bus based on an error signal.Type: GrantFiled: February 23, 2012Date of Patent: December 27, 2016Assignee: The Boeing CompanyInventor: Robert Matthew Martinelli
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Patent number: 9276476Abstract: Technologies are described herein for force commutating a current from a cathode terminal of a diode to an anode terminal of the diode. In one aspect, a method for eliminating diode reverse recovery time is presented herein. The method includes force commutating a current from a cathode terminal of a diode to an anode terminal of the diode. According to embodiments, the diode may be an intrinsic part of a component, such as a field effect transistor (FET). In such embodiments, the FET is switched from being on to off while force commutating a current through the body diode of the FET.Type: GrantFiled: September 15, 2010Date of Patent: March 1, 2016Assignee: THE BOEING COMPANYInventor: Robert Matthew Martinelli
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Patent number: 8994349Abstract: A system and method for bi-directional voltage conversion are disclosed. A charge current is received at a first voltage on a first force commutated synchronous rectifier, and the charge current is controlled by the first force commutated synchronous rectifier. An inductor is charged by the charge current, and a discharge current from the inductor is controlled by the second force commutated synchronous rectifier.Type: GrantFiled: December 3, 2010Date of Patent: March 31, 2015Assignee: The Boeing CompanyInventor: Robert Matthew Martinelli
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Patent number: 8860385Abstract: A system and method for providing a voltage controlled current source for bus regulation is disclosed. A bus current delivered to an electrical bus from a current source is controlled using a synchronous switch according to a PWM duty cycle. Further, the PWM duty cycle is controlled to be proportional to an error signal based on a comparison of a voltage of the electrical bus to a reference voltage.Type: GrantFiled: January 30, 2011Date of Patent: October 14, 2014Assignee: The Boeing CompanyInventor: Robert Matthew Martinelli
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Patent number: 8773071Abstract: A method for cell voltage balancing is disclosed. A plurality of cells is coupled to a plurality of cell interface circuits, and the cell interface circuits are driven with a balancing transformer such that a balancing current flows between the cell interface circuits. Control gates of the cell interface circuits are driven with a gate drive transformer such that two adjacent circuits of the cell interface circuits are activated with opposite phase.Type: GrantFiled: November 1, 2010Date of Patent: July 8, 2014Assignee: The Boeing CompanyInventor: Robert Matthew Martinelli
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Patent number: 8687386Abstract: A method and apparatus for bi-directional current sensing for a synchronous rectifier bi-directional converter system is disclosed. A first current is measured through a first synchronous rectifier via a first transformer to provide a first signal. A second current is measured through a second force synchronous rectifier via a second transformer to provide a second signal. The first signal and the second signal are DC restored to provide a first DC restored signal and a second DC restored signal respectively. A first correction current is added to the first DC restored signal to produce a first corrected signal, and a second correction current is added to the second DC restored signal to produce a second corrected signal. The first corrected signal and the second corrected signal are added to produce a combined signal.Type: GrantFiled: December 6, 2010Date of Patent: April 1, 2014Assignee: The Boeing CompanyInventor: Robert Matthew Martinelli
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Patent number: 8638105Abstract: A system and methods for cell telemetry are disclosed. An average magnetizing current in a sampling transformer is forced to about zero amperes by balancing volt-seconds using a voltage clamp mechanism. Furthermore, a pulse driven switch and a synchronized sampling switch are activated, and substantially simultaneously the voltage clamp mechanism deactivated.Type: GrantFiled: November 9, 2010Date of Patent: January 28, 2014Assignee: The Boeing CompanyInventor: Robert Matthew Martinelli
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Patent number: 8587152Abstract: A sequential shunt regulator switch system and method is disclosed. A power switch is controlled to switch a first current from a power source to an electrical bus. Further, a current controllable switch provides a controlled current from the power source to the electrical bus.Type: GrantFiled: March 27, 2011Date of Patent: November 19, 2013Assignee: The Boeing CompanyInventor: Robert Matthew Martinelli
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Patent number: 8553376Abstract: A fault tolerant synchronous rectifier PWM regulator system and method are disclosed. In the system and method, a force commutated synchronous rectifier is operable to be coupled to an electrical bus, and a low side switch is operable to be coupled to a common ground. In addition, a first fuse is coupled to the force commutated synchronous rectifier and the low side switch, and is operable to open in response to a first fault. Furthermore, an inductor is coupled to the first fuse, the force commutated synchronous rectifier and the low side switch, and a second fuse is coupled to the inductor and is operable to be coupled to a current source and to open in response to a second fault.Type: GrantFiled: December 11, 2010Date of Patent: October 8, 2013Assignee: The Boeing CompanyInventor: Robert Matthew Martinelli
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Patent number: 8363374Abstract: A fault tolerant synchronous rectifier regulator system and method are disclosed. In the system and method, a high side switch is operable to be coupled to an electrical bus, and a low side switch is coupled to a common ground. In addition, a first fuse is coupled to the high side switch and the low side switch, and operable to open in response to a first fault. Furthermore, a second fuse is coupled to the high side switch and the first fuse, and operable to be coupled to a current source and to open in response to a second fault.Type: GrantFiled: December 12, 2010Date of Patent: January 29, 2013Assignee: The Boeing CompanyInventor: Robert Matthew Martinelli
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Publication number: 20120262133Abstract: A bi-directional converter voltage controlled current system and methods are disclosed. A bi-directional converter provides a bi-directional current to an electrical bus according to a variable duty-cycle control signal. Also, a bi-directional current sensing sensor senses the bi-directional current to provide a sensor voltage signal proportional to the converter current. Further, a variable duty-cycle controller controls a duty-cycle of the variable duty-cycle control signal to control a voltage of the electrical bus based on an error signal.Type: ApplicationFiled: February 23, 2012Publication date: October 18, 2012Inventor: Robert Matthew Martinelli
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Publication number: 20120242154Abstract: A sequential shunt regulator switch system and method is disclosed. A power switch is controlled to switch a first current from a power source to an electrical bus. Further, a current controllable switch provides a controlled current from the power source to the electrical bus.Type: ApplicationFiled: March 27, 2011Publication date: September 27, 2012Inventor: Robert Matthew Martinelli
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Publication number: 20120194152Abstract: A system and method for providing a voltage controlled current source for bus regulation is disclosed. A bus current delivered to an electrical bus from a current source is controlled using a synchronous switch according to a PWM duty cycle. Further, the PWM duty cycle is controlled to be proportional to an error signal based on a comparison of a voltage of the electrical bus to a reference voltage.Type: ApplicationFiled: January 30, 2011Publication date: August 2, 2012Inventor: Robert Matthew Martinelli
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Publication number: 20120147510Abstract: A fault tolerant synchronous rectifier regulator system and method are disclosed. In the system and method, a high side switch is operable to be coupled to an electrical bus, and a low side switch is coupled to a common ground. In addition, a first fuse is coupled to the high side switch and the low side switch, and operable to open in response to a first fault. Furthermore, a second fuse is coupled to the high side switch and the first fuse, and operable to be coupled to a current source and to open in response to a second fault.Type: ApplicationFiled: December 12, 2010Publication date: June 14, 2012Inventor: Robert Matthew Martinelli
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Publication number: 20120147635Abstract: A fault tolerant synchronous rectifier PWM regulator system and method are disclosed. In the system and method, a force commutated synchronous rectifier is operable to be coupled to an electrical bus, and a low side switch is operable to be coupled to a common ground. In addition, a first fuse is coupled to the force commutated synchronous rectifier and the low side switch, and is operable to open in response to a first fault. Furthermore, an inductor is coupled to the first fuse, the force commutated synchronous rectifier and the low side switch, and a second fuse is coupled to the inductor and is operable to be coupled to a current source and to open in response to a second fault.Type: ApplicationFiled: December 11, 2010Publication date: June 14, 2012Inventor: Robert Matthew Martinelli
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Publication number: 20120140538Abstract: A method and apparatus for bi-directional current sensing for a synchronous rectifier bi-directional converter system is disclosed. A first current is measured through a first synchronous rectifier via a first transformer to provide a first signal. A second current is measured through a second force synchronous rectifier via a second transformer to provide a second signal. The first signal and the second signal are DC restored to provide a first DC restored signal and a second DC restored signal respectively. A first correction current is added to the first DC restored signal to produce a first corrected signal, and a second correction current is added to the second DC restored signal to produce a second corrected signal. The first corrected signal and the second corrected signal are added to produce a combined signal.Type: ApplicationFiled: December 6, 2010Publication date: June 7, 2012Inventor: Robert Matthew Martinelli
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Publication number: 20120140526Abstract: A system and method for bi-directional voltage conversion are disclosed. A charge current is received at a first voltage on a first force commutated synchronous rectifier, and the charge current is controlled by the first force commutated synchronous rectifier. An inductor is charged by the charge current, and a discharge current from the inductor is controlled by the second force commutated synchronous rectifier.Type: ApplicationFiled: December 3, 2010Publication date: June 7, 2012Inventor: Robert Matthew Martinelli
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Publication number: 20120112926Abstract: A system and methods for cell telemetry are disclosed. An average magnetizing current in a sampling transformer is forced to about zero amperes by balancing volt-seconds using a voltage clamp mechanism. Furthermore, a pulse driven switch and a synchronized sampling switch are activated, and substantially simultaneously the voltage clamp mechanism deactivated.Type: ApplicationFiled: November 9, 2010Publication date: May 10, 2012Inventor: Robert Matthew Martinelli
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Publication number: 20120105004Abstract: A method for cell voltage balancing is disclosed. A plurality of cells is coupled to a plurality of cell interface circuits, and the cell interface circuits are driven with a balancing transformer such that a balancing current flows between the cell interface circuits. Control gates of the cell interface circuits are driven with a gate drive transformer such that two adjacent circuits of the cell interface circuits are activated with opposite phase.Type: ApplicationFiled: November 1, 2010Publication date: May 3, 2012Inventor: Robert Matthew Martinelli