Patents by Inventor Jean Paul Charret

Jean Paul Charret 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).

  • Voltage regulating system for electrical loads in a motor vehicle
    Patent number: 6204652
    Abstract: A motor vehicle electrical system has at least one apparatus for regulating the power supply voltage of an electrical load which has a nominal or rated supply voltage. The regulating apparatus is supplied by a variable value unidirectional voltage source. The apparatus includes an oscillator for generating a rectangular control signal having a cyclic ratio which varies with the value of the unidirectional voltage when the latter is above a given threshold value. The apparatus also includes an interrupter controlled by the control signal and connected in series with the load across the voltage source. Each voltage regulating apparatus further includes an inductance connected in series with the load, and a component with unidirectional conduction in parallel with the series connected load and inductance.
    Type: Grant
    Filed: March 22, 2000
    Date of Patent: March 20, 2001
    Assignee: Valeo Vision
    Inventors: Pierre Albou, Jean Paul Charret, Joel Leleve