Patents by Inventor Manuel Vazquez Lopez

Manuel Vazquez Lopez 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).

  • Device suitable for supplying power to a handheld apparatus
    Publication number: 20020050808
    Abstract: Device (11) suitable for charging an electric energy storage means incorporated in a handheld apparatus, without it being necessary, for carrying out the charging operation, to electrically connect said device (11) suitable for charging to a source of electric power.
    Type: Application
    Filed: November 1, 2001
    Publication date: May 2, 2002
    Applicant: ALCATEL
    Inventors: Carlos Quinones De La Guia, Piedad Gemma Merin Celemin, Manuel Vazquez Lopez, Christopher Rouverand, Jean Marc Bertelli
  • Electric power distribution system with battery backup
    Patent number: 6067240
    Abstract: A power distribution system that provides electric power to an electrical device and to an energy storage device. The system includes a rectifier connected to an alternating current mains network to provide a rectified sinusoidal voltage via power leads connected to a charging device that provides DC voltage to the energy storage device. In addition, the electrical device(s) are connected to the power leads and include a plurality of converters, each one being connected to at least one load. Each converter is connected to the power leads in order to supply a DC voltage to its respective load.
    Type: Grant
    Filed: December 22, 1998
    Date of Patent: May 23, 2000
    Assignee: Alcatel
    Inventors: Antonio Fontan Tarodo, Enrique De La Cruz Moreno, Salvador Ollero Velasco, Javier Ara Gomez, Manuel Vazquez Lopez
  • Multi-output DC/DC power converter
    Patent number: 5654879
    Abstract: A converter device that transforms an input voltage (VE) into several output voltages (V1, . . . ,VN) includes a transformer (T), a first switching control device (PWM) that generates a first switching control signal (Q1) to control the switching of a first switching element (M1) and thereby regulate a main output of the converter, and a second switching control device (SDCC) that generates a second switching control signal (Q2) which is a function of both the first switching control signal (Q1) and of a second output voltage (V2). This second switching control signal (Q2) controls the switching of a second switching device (SDC) in order to regulate a second output voltage of the converter device.
    Type: Grant
    Filed: December 28, 1995
    Date of Patent: August 5, 1997
    Assignee: Alcatel N.V.
    Inventors: Manuel Vazquez Lopez, Enrique De La Cruz Moreno, Salvador Ollero Velasco
  • DC/DC conversion circuit
    Patent number: 5535112
    Abstract: A DC/DC conversion circuit of the type that implements the "forward PWM" topology includes a DC/AC converter, a self-driven synchronous rectifier which rectifies the alternating voltage signal coming from the DC/AC converter, and a filter that filters the rectified signal, thereby obtaining the DC output voltage from the DC/DC conversion circuit. This DC/DC conversion circuit is characterized in that the DC/AC converter includes means to generate an alternating signal with a square waveform that does not take zero instantaneous values such that no current flows through the body diode of either of the transistors of the self-driven synchronous rectifier.
    Type: Grant
    Filed: March 30, 1994
    Date of Patent: July 9, 1996
    Assignee: Alcatel N.V.
    Inventors: Manuel Vazquez Lopez, Enrique De La Cruz Moreno, Julio Rodriguez Perez