Inventor

GALBIATI EZIO

IT53 patents

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

GALBIATI EZIO

ST MICROELECTRONICS SRL

PWM/linear driver for an electromagnetic load

Device for detection of current or voltage on a PWM driven winding with reduced jitter and related methods

System for increasing the definition in converting a digital datum in a PWM signal for driving a full-bridge output stage

Method of PWM driving a brushless motor with digitally stored voltage profiles with reduced losses

Low jitter zero crossing BEMF detector and motor incorporating the same

Monitoring of current in an inductive load, PWM driven through a bridge stage

Method and circuit for driving a bridge by a PWM procedure

Digital control of the speed of a motor by a power stage driven in discontinuous mode

Enhancement of the efficiency of energy recovery during spindle motor step-up phases for parking the R/W head of a disk storage device upon external supply failure

Driving circuit and method for preventing voltage surges on supply lines while driving a DC motor

Method for detecting the position of a rotor of a DC motor and related circuit

Driving circuit for a voice coil motor and driving method thereof

Circuit for estimating the speed of an electromagnetic actuator

Analog/digital PWM control circuit of a winding

Transconductance amplifier for inductive loads and method for driving inductive loads

Method for sensing the back electromotive force induced in the winding of a voice coil motor

Circuit for the speed recovery of a direct current motor and method using said circuit

Current control in driving DC-brushless motor with independent windings

Method for current control and corresponding system and apparatus

Method of detecting back electromotive force in electro-mechanical actuators, corresponding device and apparatus

Conversion of a numeric command value in a constant frequency PWM drive signal for an electromagnetic load

Silent phase commutation in a three-phase brushless DC motor

Method and system for compensating for variations in supply voltage applied to pulse width modulation conversion circuits

Circuitry for controlling a voice coil motor

Apparatus for driving an electromagnetic load

System for controlling the dissipated power supply of a power stage working in a mixed Linear/PWM mode and driving an electromagnetic load

System for controlling the speed of a voice coil motor (VCM) in order to provide a low noise ramp loading of a hard disk head

Method of operating a hard disk drive, corresponding controller, hard disk drive and processing device

Method of operating hard disk drives, corresponding control circuit, hard disk drive and processing device

Method of driving an electrical load and corresponding driver circuit

Method of operating hard disk drives and corresponding control circuit

Method of controlling a half-bridge circuit

Half-bridge control circuit, related integrated circuit and half-bridge circuit

Method and related circuit for driving a sensorless brushless motor

Method and device for driving a brushless motor with voltage waveform predisposed for a progressive and automatic switching from a three-phase sinusoidal driving to a square wave three-phase driving

Current sensing circuit and hard disk drive including same

Methods and systems of sensing back-electromotive force in electric motors

Digital filtering method, corresponding circuit and device

Prevention of concurrent PWM or PSM commutations of power signals driving a voice coil motor (VCM) to reduce S/N ratio degradation of low level signal lines of a R/W head

Method of operating an electric motor, corresponding device and hard disk drive

GALBIATI EZIO

Driving apparatus for electric motor and related method

Driving apparatus for an electromagnetic load and related method

Control circuit of a full-bridge stage

Device to synchronize the change of the driving mode of an electromagnetic load

Stopping method for a spindle motor and related device

SGS THOMSON MICROELECTRONICS

Method for driving a brushless DC electric motor

BONVIN FREDERIC

Motor controller with drive-signal conditioning

MAIOCCHI GIUSEPPE

Management apparatus of a rotating motor and an annexed load during power loss

ST MICROELECTRONICS INT NV

Method of operating a voice coil motor and corresponding control circuit

ST MICROELECTRONICS INC

Motor controller with drive-signal conditioning