Inventor

PERMUY ALFRED

FR41 patents

⚠️ This page may combine multiple inventors who share the name “PERMUY ALFRED”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

PERMUY ALFRED

VALEO ELECTRONIQUE

Electric motor incorporating its own electronic control

Alternator used both as a generator and as a motor for starting the engine of a self-propelled vehicle

Synchronous type electrical machine

Method and apparatus for protecting an adjustable impedance element controlling the power supply to an electric motor, in particular in a motor vehicle

Electrohydraulic power steering system for a motor vehicle

Method and device for starting and synchronizing a three-phase motor

Method of controlling an H-bridge

Device for mechanically locking an electronic component with respect to a support

Methods and apparatus for controlling a synchronous electric motor, especially for a motorised fan unit for a motor vehicle

Circuit for measuring the cut-off time of an electronic system

Method and system for detecting the vibration signature of a safety insert fitted in a tire

PERMUY ALFRED

Gate drive circuit and associated method

Drive train comprising a doubly fed electric machine and a band stop filter connected between an inverter and the rotor of the machine

Corona tip insulator

Capacitor balancing circuit and control method for an electronic device such as a multilevel power inverter

Drive train comprising a doubly-fed electric machine and an inverter controlled according to a law limiting the delivered active power

Mechanical arrangement of a multilevel power converter circuit

High power converter comprising low power switches and a switch control device for generating a pulse with a reference value and at least two control values

High power converter with low power transistors connected in parallel

GE ENERGY POWER CONVERSION TECHNOLOGY LTD

Active magnetic bearing comprising means for damping the radial motion of a shaft of a rotary machine

Gate drive circuit to reduce parasitic coupling

Electronic semi-conductor device intended for mounting in a pressed stack assembly, and a pressed stack assembly comprising such device

Power conversion system and drive chain comprising the power conversion system

Electrical energy storage module, associated system and method

Electric stabilisers

Rotary drum apparatus comprising a rotary drum and at least one electric motor for driving the drum, with a stator extending against a part of circumference of the drum

Power supply system, comprising a converter connected to a network and a transformer connected in parallel relative to the converter to limit the homopolar current, and a drive chain comprising such a power supply system

SCHLUMBERGER TECHNOLOGY CORP

Density and viscosity sensor

Density and viscosity sensor

Method of measuring pressure by means of a pressure gauge having a resonant element

SAGEM

Circuit for measuring variations in the capacitance of a variable capacitor using a continuously rebalanced detection bridge

Capacitive acceleration sensor and its application in a non-servoed accelerometer

METRAVIB SA

Force measurement sensor integrated on silicon, and a method of manufacture

Method and apparatus for detecting and locating noise sources whether correlated or not

HAMPTON KEITH

Corona ignition with self-tuning power amplifier

METRAVIB R D S SA

Method and a system for locating a firearm on the basis of acoustic detection

BURROWS JOHN ANTONY

Corona igniter having controlled location of corona formation

FEDERAL-MOGUL IGNITION COMPANY

Corona ignition with self-tuning power amplifier

VALEO

Friction clutch with low declutch force

VECTAVIB SA

Method of assembling a mechanical part including a sensitive element on a support to define a variable capacitor, a mechanical part, and a tool for implementing the method

FED MOGUL IGNITION CO

Corona ignition with self-tuning power amplifier