Patents by Inventor Juan Luis Lopez Rodriguez
Juan Luis Lopez Rodriguez 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).
-
Publication number: 20220376612Abstract: There is described a snubber circuit comprising an electronic switch. The circuit includes an impedance network comprising reactive circuit elements to smooth energy transients if the electronic switch is turned off and if the switch is turned on. A resistive element dissipates energy released by at least one of the reactive circuit elements. The resistive element is of a load to be driven using the electronic switch. A power supply unit may include the described snubber circuit.Type: ApplicationFiled: November 7, 2019Publication date: November 24, 2022Inventors: Juan Luis Lopez Rodriguez, Sergio Alejandro Lopez Ramos, Santiago Sanz Ananos, Antonio Rodriguez Avila, Jose Ma. Rio Doval
-
Publication number: 20210402118Abstract: The driving device for providing assisted ventilation comprises an air inlet (15), an impeller (7) provided with blades (8) rotatably driven by a motor (6), and an air outlet (5), the rotation of said impeller (7) being caused by the air circulation through a duct (4) from the air inlet (15) to the air outlet (5), wherein said blades (8) of the impeller (7) are flexible, vibrating at least one of its ends by the thrust caused by said circulating air. It reduces noise to improve user comfort.Type: ApplicationFiled: October 5, 2018Publication date: December 30, 2021Inventors: Albert Carbo Bech, Jordi Duran Prat, Carlos Anchuela Arnalte, Juan Luis López Rodriguez, Jordi Crespo Cabrera, Joan Ramon Petit Meroño, Alfred Fontanals Garcia, Jaume Palou Fusté
-
Patent number: 10418806Abstract: A safety protection circuit is described, comprising a fuse, a first voltage detection circuit, a first Silicon-Controlled Rectifier, SCR, wherein the first SCR is triggered upon detection of a threshold voltage by the first voltage detection circuit, a second voltage detection circuit, and a second SCR, wherein the second SCR is triggered upon detection of a threshold voltage by the second voltage detection circuit.Type: GrantFiled: March 10, 2015Date of Patent: September 17, 2019Assignee: Hewlett-Packard Development Company, L.P.Inventors: Juan Luis Lopez Rodriguez, David Soriano Fosas, Marc Soler Jauma
-
Patent number: 10359452Abstract: A diagnostic device comprises a comparison section to compare an input voltage with a threshold voltage, wherein the input voltage is a power supply voltage for a component on a circuit board; and an indicator to provide an indication of the result of the comparison by the comparison section, the indication to render the circuit board identifiable to direct inspection, wherein the supply of power to the component is independent of the result of the comparison.Type: GrantFiled: July 11, 2012Date of Patent: July 23, 2019Assignee: Hewlett-Packard Development Company, L.P.Inventors: Jordi Hernandez Creus, Marc Bautista Palacios, Juan Luis López Rodríguez
-
Patent number: 10114048Abstract: Example implementations relate to circuits. For example, an implementation includes a detection circuit including a comparator circuit. The comparator circuit includes a first input terminal, a second input terminal, and an output terminal. The detection circuit also includes a reference voltage circuit to provide a set point voltage to the comparator circuit via the first input terminal. The detection circuit further includes a diode to reduce the set point voltage from a first magnitude to a second magnitude when the first magnitude is equal to or lower than a magnitude of the load voltage.Type: GrantFiled: November 13, 2014Date of Patent: October 30, 2018Assignee: Hewlett-Packard Development Company, L.P.Inventors: Sergio Alejandro Lopez Ramos, Juan Luis Lopez Rodriguez, David Soriano Fosas
-
Patent number: 9985456Abstract: A controller is to control a discharger to provide power from an energy storage to an electrical device during a period when the electrical device is to require a power maximum. The controller is to control the charger to provide power from a power supply to the energy storage during a period when the electrical device is to require a power minimum. The electrical device is to be powered by a power supply.Type: GrantFiled: May 29, 2014Date of Patent: May 29, 2018Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: David Soriano Fosas, Marc Soler Jauma, Juan Luis Lopez Rodriguez
-
Patent number: 9967919Abstract: Electrical resistor heating with an electrical resistor heating circuitry which includes an AC power source of at least one phase, a plurality of heating resistors provided in a spatial arrangement, and switches to connect the AC power source with the heating resistors generating ON and OFF power states. Power scheduling is provided to adjust the power fed from the AC power source to the heating resistors at a desired partial-power level by ON/OFF switching a number of switches, wherein the power scheduling causes at least some of the switches to switch between the ON and OFF states in a staggered manner so that energization of the partial-power level of different resistors takes place, at least partially, non-simultaneously.Type: GrantFiled: April 6, 2016Date of Patent: May 8, 2018Assignee: Hewlett-Packard Development Company, L.P.Inventors: Juan Luis López Rodriguez, Xavier Soler Pedemonte, Jesús Garcia Maza
-
Publication number: 20180026439Abstract: A safety protection circuit is described, comprising a fuse, a first voltage detection circuit, a first Silicon-Controlled Rectifier, SCR, wherein the first SCR is triggered upon detection of a threshold voltage by the first voltage detection circuit, a second voltage detection circuit, and a second SCR, wherein the second SCR is triggered upon detection of a threshold voltage by the second voltage detection circuit.Type: ApplicationFiled: March 10, 2015Publication date: January 25, 2018Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Juan Luis Lopez Rodriguez, David Soriano Fosas, Marc Soler Jauma
-
Publication number: 20170315161Abstract: Example implementations relate to circuits. For example, an implementation includes a detection circuit including a comparator circuit. The comparator circuit includes a first input terminal, a second input terminal, and an output terminal. The detection circuit also includes a reference voltage circuit to provide a set point voltage to the comparator circuit via the first input terminal. The detection circuit further includes a diode to reduce the set point voltage from a first magnitude to a second magnitude when the first magnitude is equal to or lower than a magnitude of the load voltage.Type: ApplicationFiled: November 13, 2014Publication date: November 2, 2017Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Sergio Alejandro Lopez Ramos, Juan Luis Lopez Rodriguez, David Soriano Fosas
-
Publication number: 20170077721Abstract: A controller is to control a discharger to provide power from an energy storage to an electrical device during a period when the electrical device is to require a power maximum. The controller is to control the charger to provide power from a power supply to the energy storage during a period when the electrical device is to require a power minimum. The electrical device is to be powered by a power supply.Type: ApplicationFiled: May 29, 2014Publication date: March 16, 2017Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: David Soriano Fosas, Marc Soler Jauma, Juan Luis Lopez Rodriguez
-
Publication number: 20160249410Abstract: Electrical resistor heating with an electrical resistor heating circuitry which includes an AC power source of at least one phase, a plurality of heating resistors provided in a spatial arrangement, and switches to connect the AC power source with the heating resistors generating ON and OFF power states. Power scheduling is provided to adjust the power fed from the AC power source to the heating resistors at a desired partial-power level by ON/OFF switching a number of switches, wherein the power scheduling causes at least some of the switches to switch between the ON and OFF states in a staggered manner so that energization of the partial-power level of different resistors takes place, at least partially, non-simultaneously.Type: ApplicationFiled: April 6, 2016Publication date: August 25, 2016Applicant: Hewlett-Packard Development Company, L.P.Inventors: Juan Luis LÓPEZ RODRIGUEZ, Xavier SOLER PEDEMONTE, Jesús GARCIA MAZA
-
Patent number: 9345068Abstract: Electrical resistor heating with an electrical resistor heating circuitry which includes an AC power source of at least one phase, a plurality of heating resistors provided in a spatial arrangement, and switches to connect the AC power source with the heating resistors generating ON and OFF power states. Power scheduling is provided to adjust the power fed from the AC power source to the heating resistors at a desired partial-power level by ON/OFF switching a number of switches, wherein the power scheduling causes at least some of the switches to switch between the ON and OFF states in a staggered manner so that energization of the partial-power level of different resistors takes place, at least partially, non-simultaneously.Type: GrantFiled: July 26, 2012Date of Patent: May 17, 2016Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Juan Luis López Rodriguez, Xavier Soler Pedemonte, Jesús Garcia Maza
-
Patent number: 9289974Abstract: A printhead control system comprises a voltage supply control module to selectively supply an operating voltage to a printhead, and the voltage supply control module is configured to receive a first and a second control voltages, and to disconnect the supply of operating voltage to the printhead at least when the first and second control voltages have the same logical level.Type: GrantFiled: April 29, 2013Date of Patent: March 22, 2016Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY L.P.Inventors: Javier González Bruno, David Soriano Fosas, Juan Luis López Rodriguez
-
Patent number: 9140746Abstract: Diagnosing the condition of an electrical system includes identifying the intended operating status of the system. An electrical consumption in the system is measured. The measured electrical consumption is compared at least with one predetermined electrical consumption that is associated to the intended operating status of the system. The condition of the system is diagnosed based on the comparison.Type: GrantFiled: November 22, 2012Date of Patent: September 22, 2015Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Juan Luis Lopez Rodriguez, Javier Gonzales Bruno, Sergio Alejandro Lopez Ramos
-
Publication number: 20150215992Abstract: Electrical resistor heating with an electrical resistor heating circuitry which includes an AC power source of at least one phase, a plurality of heating resistors provided in a spatial arrangement, and switches to connect the AC power source with the heating resistors generating ON and OFF power states. Power scheduling is provided to adjust the power fed from the AC power source to the heating resistors at a desired partial-power level by ON/OFF switching a number of switches, wherein the power scheduling causes at least some of the switches to switch between the ON and OFF states in a staggered manner so that energization of the partial-power level of different resistors takes place, at least partially, non-simultaneously.Type: ApplicationFiled: July 26, 2012Publication date: July 30, 2015Inventors: Juan Luis López Rodriguez, Xavier Soler Pedemonte, Jesús Garcia Maza
-
Patent number: 9081052Abstract: According to one example, there is provided a monitoring module for determining the status of electrical components in an array of N electrical components. The monitoring module comprises a resistance measurer to measure the resistance across a pair of diagnostic terminals, a comparator to compare the measured resistance with a set of reference resistances, and a status module to determine the status of at least one electrical component in the array based on the comparison.Type: GrantFiled: September 30, 2011Date of Patent: July 14, 2015Assignee: Hewlett-Packard Development Company, L.P.Inventors: Juan Luis López Rodriguez, Marc Bautista Palacios, Marina Ferran Farrés
-
Publication number: 20140320559Abstract: Printhead control systems and methods for controlling a printhead A printhead control system comprises a voltage supply control module to selectively supply an operating voltage to a printhead, and the voltage supply control module is configured to receive a first and a second control voltages, and to disconnect the supply of operating voltage to the printhead at least when the first and second control voltages have the same logical level.Type: ApplicationFiled: April 29, 2013Publication date: October 30, 2014Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Javier González Bruno, David Soriano Fosas, Juan Luis López Rodríguez
-
Publication number: 20140139234Abstract: Diagnosing the condition of an electrical system during operation may comprise identifying the intended operating status of the system, measuring an electrical consumption in the system, comparing the measured electrical consumption at least with one predetermined electrical consumption that is associated to the intended operating status of the system, and diagnosing the condition of the system based on the comparison.Type: ApplicationFiled: November 22, 2012Publication date: May 22, 2014Applicant: Hewlett-Packard Development Company, L.P.Inventors: Juan Luis Lopez Rodriguez, Javier Gonzales Bruno, Sergio Alejandro Lopez Ramos
-
Patent number: 8665576Abstract: A power supply circuit has parallel supply and control branches each with fuses, the power supply branch comprising at least one replaceable fuse. The supply branch is connected to one or more electrical components of an electrical device, such as the actuator and sensors of a printer, and the supply branch is connected to control or monitoring components. A circuit comprising lights indicates correct or faulty operation of the various parts of the supply circuit.Type: GrantFiled: July 27, 2012Date of Patent: March 4, 2014Assignee: Hewlett-Packard Development Company, L.P.Inventors: Marc Bautista Palacios, Lorena Fernández Llorens, Jordi Hernandez Creus, Juan Luis López Rodríguez
-
Patent number: 8659348Abstract: A current mirror comprises first and second sets of transistors. each of the first and second sets is a matched set comprising a first transistor and a second transistor. For each set, the base of the first transistor is directly coupled to the base of the second transistor. For one of the first and second transistors of each set the base is directly coupled to the collector. The collectors of the first and second transistors of the first set are coupled, respectively, to the emitters of the first and second transistors of the second set in series. A current output of the current mirror is coupled between the collector of the second transistor of the first set and the emitter of the second transistor of the second set.Type: GrantFiled: July 26, 2012Date of Patent: February 25, 2014Assignee: Hewlett-Packard Development Company, L.P.Inventors: Juan Luis López Rodriguez, Sergio Alejandro López Ramos, Javier González Bruno