Patents by Inventor Joe Ortiz
Joe Ortiz 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: 10862389Abstract: An active line filter (ALF) with multiple outputs includes a first output providing a first output power form having a first output current, the first output power form being coupled to a first winding on an inductive element; and a second output providing a second output power form having a second output current, the second output power form being coupled to a second winding on the inductive element. An input receives an input power form having an input current and an input voltage. A pulse-width modulator (PWM) provides a PWM output signal controlling timing of switching of a transistor to control application of the input voltage of the input power form to the first winding of the inductive element. An error amplifier receives a signal indicative of the first output voltage and generating an error amplifier output signal.Type: GrantFiled: October 4, 2019Date of Patent: December 8, 2020Assignee: Raytheon CompanyInventor: Joe A. Ortiz
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Patent number: 10727732Abstract: An active line filter (ALF) with input current regulation includes: an output providing an output power form having an output current; a pulse-width modulator (PWM) for controlling timing of switching of a converter switch transistor to control operation of the active line filter power converter; an error amplifier generating an error amplifier output signal used by the PWM to adjust the PWM output signal; an input for receiving an input power form having an input voltage, the active line filter drawing input current from the input; an input current sense circuit for sensing the input current and generating a signal proportional to the input current to be applied to the inverting input of the error amplifier; a voltage reference signal applied to the noninverting input of the error amplifier; and a voltage regulation circuit for adjusting the voltage reference signal to provide regulation of the output voltage.Type: GrantFiled: October 4, 2019Date of Patent: July 28, 2020Assignee: Raytheon CompanyInventor: Joe A. Ortiz
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Patent number: 9941047Abstract: A shield for a toroidal transformer that includes a toroidal assembly that comprises a toroidal magnetic core and a first winding includes a sheet of flexible non-magnetic conductive material. The sheet of flexible non-magnetic conductive material comprises a trunk portion extending along a longest dimension of the sheet of flexible non-magnetic conductive material and configured to wrap along an outer dimension of the toroidal assembly, and a plurality of fingers extending outwardly from the trunk portion and configured to wrap around portions of the first winding along portions of sides of the toroidal assembly in a direction towards the center of the toroidal magnetic core and folding into an inner dimension of the toroidal assembly.Type: GrantFiled: February 8, 2016Date of Patent: April 10, 2018Assignee: Raytheon CompanyInventor: Joe A. Ortiz
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Patent number: 9923334Abstract: A high-power laser system includes a plurality of cascaded diode drivers, a pump source, and a laser element. The diode drivers are configured to generate a continuous driver signal. The pump source is configured to generate radiated energy in response to the continuous driver signal. The laser element is disposed downstream from the pump source and is configured to generate a laser beam in response to stimulation via the radiated energy. The high-power laser system further includes an electronic controller configured to output at least one driver signal that operates the plurality of diode drivers at a fixed frequency. The at least one driver signal operates a first cascade diode driver among the plurality of diode drivers 90 degrees out of phase with respect to a second cascade diode driver among the plurality of diode drivers.Type: GrantFiled: January 18, 2017Date of Patent: March 20, 2018Assignee: RAYTHEON COMPANYInventors: Robert F. Stiffler, Joe A. Ortiz, Philip C. Todd, James Lazar
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Publication number: 20170163007Abstract: A high-power laser system includes a plurality of cascaded diode drivers, a pump source, and a laser element. The diode drivers are configured to generate a continuous driver signal. The pump source is configured to generate radiated energy in response to the continuous driver signal. The laser element is disposed downstream from the pump source and is configured to generate a laser beam in response to stimulation via the radiated energy. The high-power laser system further includes an electronic controller configured to output at least one driver signal that operates the plurality of diode drivers at a fixed frequency. The at least one driver signal operates a first cascade diode driver among the plurality of diode drivers 90 degrees out of phase with respect to a second cascade diode driver among the plurality of diode drivers.Type: ApplicationFiled: January 18, 2017Publication date: June 8, 2017Inventors: Robert F. Stiffler, Joe A. Ortiz, Philip C. Todd, James Lazar
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Patent number: 9601904Abstract: A high-power laser system includes a plurality of cascaded diode drivers, a pump source, and a laser element. The diode drivers are configured to generate a continuous driver signal. The pump source is configured to generate radiated energy in response to the continuous driver signal. The laser element is disposed downstream from the pump source and is configured to generate a laser beam in response to stimulation via the radiated energy. The high-power laser system further includes an electronic controller configured to output at least one driver signal that operates the plurality of diode drivers at a fixed frequency. The at least one driver signal operates a first cascade diode driver among the plurality of diode drivers 90 degrees out of phase with respect to a second cascade diode driver among the plurality of diode drivers.Type: GrantFiled: December 7, 2015Date of Patent: March 21, 2017Assignee: RAYTHEON COMPANYInventors: Robert F. Stiffler, Joe A. Ortiz, Philip C. Todd, James Lazar
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Publication number: 20160155564Abstract: A shield for a toroidal transformer that includes a toroidal assembly that comprises a toroidal magnetic core and a first winding includes a sheet of flexible non-magnetic conductive material. The sheet of flexible non-magnetic conductive material comprises a trunk portion extending along a longest dimension of the sheet of flexible non-magnetic conductive material and configured to wrap along an outer dimension of the toroidal assembly, and a plurality of fingers extending outwardly from the trunk portion and configured to wrap around portions of the first winding along portions of sides of the toroidal assembly in a direction towards the center of the toroidal magnetic core and folding into an inner dimension of the toroidal assembly.Type: ApplicationFiled: February 8, 2016Publication date: June 2, 2016Inventor: Joe A. Ortiz
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Patent number: 9257224Abstract: A shield for a toroidal transformer that includes a toroidal assembly that comprises a toroidal magnetic core and a first winding includes a sheet of flexible non-magnetic conductive material. The sheet of flexible non-magnetic conductive material comprises a trunk portion extending along a longest dimension of the sheet of flexible non-magnetic conductive material and configured to wrap along an outer dimension of the toroidal assembly, and a plurality of fingers extending outwardly from the trunk portion and configured to wrap around portions of the first winding along portions of sides of the toroidal assembly in a direction towards the center of the toroidal magnetic core and folding into an inner dimension of the toroidal assembly.Type: GrantFiled: December 21, 2012Date of Patent: February 9, 2016Assignee: Raytheon CompanyInventor: Joe A. Ortiz
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Patent number: 9118280Abstract: A high voltage amplifier and a method of assembling and of operating a high voltage amplifier are described. The device includes a first metal-oxide-semiconductor field-effect transistor (MOSFET) driven by a first gate drive circuit. The device also includes a second MOSFET driven by a second gate drive circuit and a first optocoupler coupled to the second gate drive circuit. The first MOSFET and the second MOSFET of the high voltage amplifier drive a first output voltage.Type: GrantFiled: September 30, 2013Date of Patent: August 25, 2015Assignee: RAYTHEON COMPANYInventor: Joe A. Ortiz
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Publication number: 20150091654Abstract: A high voltage amplifier and a method of assembling and of operating a high voltage amplifier are described. The device includes a first metal-oxide-semiconductor field-effect transistor (MOSFET) driven by a first gate drive circuit. The device also includes a second MOSFET driven by a second gate drive circuit and a first optocoupler coupled to the second gate drive circuit. The first MOSFET and the second MOSFET of the high voltage amplifier drive a first output voltage.Type: ApplicationFiled: September 30, 2013Publication date: April 2, 2015Applicant: Raytheon CompanyInventor: Joe A. Ortiz
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Publication number: 20140269799Abstract: A diode driver system includes an input power source and an active line filter receiving input power from the input power source and providing a filter output power form. A current driver receives an input power form and generates a driving output signal for driving at least one diode. A capacitive energy storage device is coupled between the active line filter and the current driver, the capacitive energy storage device receiving the filter output power form from the active line filter and providing the input power form to the current driver.Type: ApplicationFiled: March 12, 2014Publication date: September 18, 2014Applicant: RAYTHEON COMPANYInventor: Joe A. Ortiz
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Publication number: 20140241387Abstract: A laser diode driving system includes a first high-side-drive current source for driving a first set of diodes, the first set of diodes including one or more laser diodes. A second high-side-drive current source drives a second set of diodes, the second set of diodes including one or more laser diodes. The system also includes an energy storage capacitor and an energy storage capacitor charger for charging the energy storage capacitor.Type: ApplicationFiled: February 21, 2014Publication date: August 28, 2014Applicant: Raytheon CompanyInventor: Joe A. Ortiz
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Publication number: 20140226688Abstract: The present technology provides a multiple output diode driver that includes a high side current source and at least two loads electrically coupled in series to the current source, each respective load including at least one laser diode. The multiple output diode driver can further include a shunt device electrically coupled in parallel with at least one of the at least two loads to reduce the DC pump current to its respective load. The shunt device can be a load element, a switching device, or any series coupled combination thereof.Type: ApplicationFiled: February 11, 2013Publication date: August 14, 2014Applicant: Raytheon CompanyInventor: Joe A. Ortiz
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Patent number: 7141940Abstract: Control circuitry uses modified average current mode control to regulate average current through an inductor of a power converter. Control circuitry uses modified average current mode control to regulate average current through an inductor of an active power filter. This average current mode control negates modulation of the average inductor current. In this way, output ripple current of the power converter does not have a significant effect on the input current drawn by the power converter.Type: GrantFiled: April 19, 2005Date of Patent: November 28, 2006Assignee: Raytheon CompanyInventor: Joe A. Ortiz
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Publication number: 20060232226Abstract: Control circuitry uses modified average current mode control to regulate average current through an inductor of a power converter. Control circuitry uses modified average current mode control to regulate average current through an inductor of an active power filter. Control circuitry uses average current mode control to regulate average current through an inductor of an active power filter. This average current mode control negates modulation of the average inductor current. In this way, output ripple current of the power converter does not have a significant effect on the input current drawn by the power converter.Type: ApplicationFiled: April 19, 2005Publication date: October 19, 2006Inventor: Joe Ortiz
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Patent number: 7038435Abstract: An active-power filter includes control circuitry to combine an integrated output-voltage feedback signal, an input-voltage sense signal and an output-load feedforward signal to generate a control signal. An output-load subsystem draws the output current from the active-power filter and the output-load feedforward signal indicates when current drawn by an output-load subsystem changes. In some embodiments, the output-load subsystem may draw output current from the power converter having an output current ripple at a nominal frequency, which may range, for example, between about 35 and 100 Hz. The control circuitry may include an integrator to integrate the output-voltage feedback signal. The integrator may have a control loop bandwidth significantly less than the nominal ripple frequency to loosely regulate the output voltage while the input current drawn by the active-power filter is tightly regulated.Type: GrantFiled: November 24, 2003Date of Patent: May 2, 2006Assignee: Raytheon CompanyInventors: Joe A. Ortiz, Joseph K. Miyamoto, Frank H. Wang
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Patent number: 7019503Abstract: Active power filters and methods control and regulate the input current drawn from an electric power bus to a DC level. Load current fluctuations and ripple current reflected back to the electric power bus are significantly reduced or substantially eliminated. A switch mode power converter with a very low bandwidth output voltage regulation control loop uses input voltage feedforward, output load feedforward, and output voltage feedforward to provide a regulated DC input current significantly attenuating input ripple current drawn from the electric power bus.Type: GrantFiled: February 7, 2005Date of Patent: March 28, 2006Assignee: Raytheon CompanyInventors: Joe A. Ortiz, Joseph K. Miyamoto, Frank H. Wang
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Publication number: 20050110474Abstract: An active-power filter includes control circuitry to combine an integrated output-voltage feedback signal, an input-voltage sense signal and an output-load feedforward signal to generate a control signal. An output-load subsystem draws the output current from the active-power filter and the output-load feedforward signal indicates when current drawn by an output-load subsystem changes. In some embodiments, the output-load subsystem may draw output current from the power converter having an output current ripple at a nominal frequency, which may range, for example, between about 35 and 100 Hz. The control circuitry may include an integrator to integrate the output-voltage feedback signal. The integrator may have a control loop bandwidth significantly less than the nominal ripple frequency to loosely regulate the output voltage while the input current drawn by the active-power filter is tightly regulated.Type: ApplicationFiled: November 24, 2003Publication date: May 26, 2005Inventors: Joe Ortiz, Joseph Miyamoto, Frank Wang
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Patent number: 5736881Abstract: A current source that uses a regulated constant current power source to supply current to drive a load, and the load current is controlled by shunt switches. If a plurality of loads utilize less than 50% duty factor, then one current source can drive N multiple dissimilar impedance loads, each at 100%/N duty factor. The current source includes a power converter coupled between the power source and the load(s) for providing pulsed current thereto. A current sensor is provided for sensing current flowing through the loads. A controller is coupled between the sensor and the power converter for regulating the amplitude of the output current supplied to the loads. A shunt switch is coupled across the loads, and a duty factor controller is coupled to the shunt switch for setting the duty factor of the shunt switch. A laser drive circuit, or driving light emitting diode arrays is also disclosed that include a plurality of the current sources.Type: GrantFiled: June 12, 1996Date of Patent: April 7, 1998Assignee: Hughes ElectronicsInventor: Joe A. Ortiz
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Patent number: 5450727Abstract: A thermoelectric cooler controller, a thermal reference source employing the controller, a thermal reference source, and a thermal calibration system. The controller controls the temperature of a thermoelectric cooler. The controller includes a temperature sensor coupled to the thermoelectric cooler that provides a temperature feedback signal. An error amplifier compares a temperature command (TEMP CMD) with a feedback signal and generates a positive polarity output current command signal (VCMD). A current driver is coupled to the error amplifier for providing an output current equal to one-half the current command signal. An H-bridge circuit is coupled between the current driver and the thermoelectric cooler for switching the direction of current flow in the thermoelectric cooler, thus heating and cooling it. A comparator is coupled to the error amplifier and the H-bridge circuit, for controlling the current supplied by the H-bridge circuit to the thermoelectric cooler.Type: GrantFiled: May 27, 1994Date of Patent: September 19, 1995Assignee: Hughes Aircraft CompanyInventors: Michael J. Ramirez, Joe A. Ortiz
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Patent number: 5037818Abstract: The invention concerns a washing composition for washing a surface to deposit thereon substantially water-insoluble particles. The aqueous washing composition of the invention comprises an anionic surfactant, the particulate substance to be deposited and a water-soluble cationic non-cellulosic polymer which enhances the deposition of the particulate substance onto the surface but which cationic polymer does not form in the composition a water-insoluble complex with the anionic surfactant, the cationic charge density of the polymer being from 0.0001 to 0.0017; the concentration of the cationic polymer in the washing composition being from 0.0001% to 0.01% by weight; and the concentration of the surfactant in the washing composition being from 0.01% to 5% by weight.Type: GrantFiled: July 26, 1988Date of Patent: August 6, 1991Assignee: Chesebrough-Pond's USA Co., division of Conopco, Inc.Inventor: Stuart J. Sime