Abstract: A permanent magnet generator for on-board vehicle charging comprises an external rotor, a stator assembly accommodated inside the external rotor and provided with a stator yoke, with a plurality of stator teeth extending from the stator yoke and with a plurality of conductive windings arranged around each of said stator teeth, a permanent magnet associated with a portion of an internal wall of the external rotor and facing the stator assembly, wherein the stator yoke is made of magnetic steel sheet with non-oriented grains and the stator teeth are made of magnetic steel sheet with oriented grains.

Abstract: A three-phase synchronous rectifier for charging a battery on board the vehicle, comprising a first and a second input which are independent of each other and each connectable to a respective first and second three-phase output branch of a generator, two independent negative and positive outputs each connectable to the respective poles of the battery, a first group of three rectification units configured to be connected to the first output branch of the generator via said first input, a second group of three rectification units configured to be connected to the second output branch of said generator via the second input. Advantageously, the rectification units are configured to be simultaneously connected to the battery of the vehicle.

Abstract: The three-phase synchronous rectifier for battery charger on board vehicle comprises: three rectification units provided with respective inputs connected to respective phases of a permanent magnet generator and with respective outputs connected to a battery of a vehicle; wherein the rectification units are configured to receive at input respective phase currents of the generator and to supply at output rectified currents; and wherein each of the rectification units comprises a current sensor connected to a respective phase of the generator and a respective output circuit connected to the battery and operatively connected to said current sensor; the current sensor being configured to receive at input a respective phase current and the output circuit being configured to be piloted by means of the current sensor to generate the rectified currents; wherein the current sensor comprises at least one toroidal element made of a magnetic material crossed by a lead which conveys the phase current and at least one Hall

Abstract: The generator device of electrical energy with permanent magnets, particularly for the supply of electrical loads and/or batteries of vehicles, connectable to at least a driving shaft of a motor, comprises: a rotor element rotating around an axis of rotation; a stator element contained inside the rotor element, or containing the rotor element, and coaxial to the rotor element, the stator element having a plurality of stator slots; a plurality of stator windings of a conductive material arranged at each of the stator slots and connected to a power supply line; a plurality of permanent magnets having a first side associated with the rotor element and a second side facing the stator element; wherein the permanent magnets are associated with the rotor element in a configuration of the Halbach array type to define a magnetic coupling to the stator windings wherein the magnetic field flow at the second side of each of the permanent magnets is substantially greater than the flow of the magnetic field at the first si

Abstract: The three-phase synchronous rectifier for battery charger on board vehicle comprises: three rectification units provided with respective inputs connected to respective phases of a permanent magnet generator and with respective outputs connected to a battery of a vehicle; wherein the rectification units are configured to receive at input respective phase currents of the generator and to supply at output rectified currents; and wherein each of the rectification units comprises a current sensor connected to a respective phase of the generator and a respective output circuit connected to the battery and operatively connected to said current sensor; the current sensor being configured to receive at input a respective phase current and the output circuit being configured to be piloted by means of the current sensor to generate the rectified currents; wherein the current sensor comprises at least one toroidal element made of a magnetic material crossed by a lead which conveys the phase current and at least one Hall

Abstract: The generator device of electrical energy with permanent magnets, particularly for the supply of electrical loads and/or batteries of vehicles, connectable to at least a driving shaft of a motor, comprises: a rotor element rotating around an axis of rotation; a stator element contained inside the rotor element, or containing the rotor element, and coaxial to the rotor element, the stator element having a plurality of stator slots; a plurality of stator windings of a conductive material arranged at each of the stator slots and connected to a power supply line; a plurality of permanent magnets having a first side associated with the rotor element and a second side facing the stator element; wherein the permanent magnets are associated with the rotor element in a configuration of the Halbach array type to define a magnetic coupling to the stator windings wherein the magnetic field flow at the second side of each of the permanent magnets is substantially greater than the flow of the magnetic field at the first si

Abstract: The voltage regulator receives power in A.C. from a permanent magnet voltage generator, having phase windings with a configurable connection, to supply power in D.C. to a battery. The voltage regulator comprises a plurality of semi-bridge rectifiers connected between the terminals of the phase windings of the voltage generator, and a battery power supply terminal; it also comprises a control circuit designed to change over the connection of the phase windings between two different configurations, for example star and delta, in relation to the charging voltage of the battery upon exceeding a threshold value of the phase frequency of the voltage generator.

Abstract: A power MOS voltage regulator for recharging batteries of motor vehicles; a voltage generator is selectively connected to a battery, respectively to an earth by a controlled rectifier bridge. The rectifier bridge includes a Schottky diode connected between each phase winding of the generator and the positive terminal of the battery, and a power MOS transistor branched between the phase winding and the earth; a control electrode of the power MOS transistor is driven by a control circuit for controlling the charging state of the battery, to enable the changeover of the power MOS transistor between a conductive state and a non conductive state, and vice versa, when the voltage of the phase winding is zero.

Abstract: The voltage regulator receives power in A.C. from a permanent magnet voltage generator, having phase windings with a configurable connection, to supply power in D.C. to a battery. The voltage regulator comprises a plurality of semi-bridge rectifiers connected between the terminals of the phase windings of the voltage generator, and a battery power supply terminal; it also comprises a control circuit designed to change over the connection of the phase windings between two different configurations, for example star and delta, in relation to the charging voltage of the battery upon exceeding a threshold value of the phase frequency of the voltage generator.

Abstract: The ignition system for internal combustion engines includes a rotor and an armature having an ignition coil in which voltage signals, each having pulses of opposite polarities are cyclically induced during each rotor revolution; a control unit for the ignition current includes a current-control switch which can be triggered during a positive pulse of the voltage signals, to cut off the current in the primary winding and generate a high voltage on the secondary winding of the ignition coil. A second control switch has the control electrode connected to a current-control resistor in series with the current-control switch, and to the outlet of a voltage comparator connected to a timing circuit enabling the sparking within a pre-established time interval, preventing sparking when the engine is running below a minimum rotational speed, during the forward rotation and at the reverse rotation of the same engine.

Abstract: The ignition system for internal combustion engines comprises a rotor and an armature provided with an ignition coil in which voltage signals, each having pulses of opposite polarities are cyclically induced during each revolution of the rotor; a control unit for the ignition current comprises a current-control switch which can be triggered during a positive pulse of the voltage signals, to cut off the current in the primary winding and generate a high voltage on the secondary winding of the ignition coil. A second control switch has the control electrode connected both to a current-control resistor in series with the current-control switch, and to the outlet of a voltage comparator connected to a timing circuit enabling the sparking within a pre-established time interval, during a positive pulse of each voltage signal, preventing the sparking when the engine is running below a minimum rotational speed, during the forward rotation and at the reverse rotation of the same engine.

Abstract: A power MOS voltage regulator for recharging batteries of motor vehicles; a voltage generator is selectively connected to a battery, respectively to an earth by means of a controlled rectifier bridge. The rectifier bridge comprises a Schottky diode D3 connected between each phase winding of the generator and the positive terminal of the battery, and a power MOS transistor branched between the phase winding and the earth; a control electrode of the power MOS transistor is driven by a control circuit for controlling the charging state of the battery, to enable the changeover of the power MOS transistor between a conductive state and a non conductive state, and vice versa, when the voltage of the phase winding is zero.

Abstract: A magneto generator for self-powered apparatuses; the magneto generator comprises a stator provided with an electric winding, and a permanent magnet rotor coaxially arranged to the stator. The stator and the rotor have a first, and respectively a second pole system which together with the electric winding define a multiphase electromagnetic system connected to a bridge rectifier, secured to the stator. The poles of the stator and the poles of the rotor have opposite polar surfaces in which the axis of each polar surface of the rotor, is slanted with respect to a reference line parallel to the longitudinal axes of the polar surfaces of the stator.

Abstract: A magneto generator for self-powered apparatuses; the magneto generator comprises a stator provided with an electric winding, and a permanent magnet rotor coaxially arranged to the stator. The stator and the rotor have a first, and respectively a second pole system which together with the electric winding define a multiphase electromagnetic system connected to a bridge rectifier, secured to the stator. The poles of the stator and the poles of the rotor have opposite polar surfaces in which the axis of each polar surface of the rotor, is slanted with respect to a reference line parallel to the longitudinal axes of the polar surfaces of the stator.

Abstract: A method and an electronic apparatus for reversing the rotation of a two-stroke internal combustion engine, provided with an ignition system powered by a permanent magnet voltage generator. The electronic apparatus comprises a microprocessor control unit programmed for controlling the sparking both during forward and backward rotations, and for controlling the reversal rotation procedure of the engine. The reversal procedure is controlled on the basis of information obtained from a first binary signal emitted by a bistable magnetic sensor activated by the magnetic flux of the generator, and from a second binary signal correlated to the polarities of output voltage of the voltage generator. The original forward or backward rotation is made to reverse by providing a sparking delay, and subsequently generating an advanced spark while the engine is still rotating in the original direction.

Abstract: A method and an electronic apparatus for reversing the rotation of a two-stroke internal combustion engine, provided with an ignition system powered by a permanent magnet voltage generator. The electronic apparatus comprises a microprocessor control unit programmed for controlling the sparking both during forward and backward rotations, and for controlling the reversal rotation procedure of the engine. The reversal procedure is controlled on the basis of information obtained from a first binary signal emitted by a bistable magnetic sensor activated by the magnetic flux of the generator, and from a second binary signal correlated to the polarities of output voltage of the voltage generator. The original forward or backward rotation is made to reverse by providing a sparking delay, and subsequently generating an advanced spark while the engine is still rotating in the original direction.

Abstract: A phase-controlled voltage regulator of the series type, for supplying A.C. and D.C. electric loads in electronic ignition systems for internal-combustion engines. The A.C. and/or D.C. electric load is connectable in series with a single winding magneto generator via a respective electronic control switch; the voltage existing on the electric load is continuously detected and set to a supply voltage value required by the load by controlling the start time, and the time length of activation of the electronic control switch, during each half-wave of the generator voltage having a same polarity, in relation to the detected voltage on the electric load itself; no-load operating conditions for the magneto generator are maintained during the initial period of time for each half-wave, inhibiting the conduction of the electronic control switch.

Abstract: An electronic ignition and alarm system for motorcycles. An electronic circuit for reading a coded signal emitted by a code-generating integrated circuit inside the ignition key, can be connected inductively or by electric contact means to a microcontroller programmed to enabling the operation of the ignition circuit of the engine after identification of the coded-signal. The coded-signal reader and the microcontroller are fed by a power source comprising a capacitor for storing the energy supplied by the voltage generator of the ignition circuit of the motorcycle.

Abstract: An electronic ignition system for reversible internal combustion engines. The ignition system comprises a voltage generator (10, 11) for feeding the ignition circuit (12, 13) of the engine (P), a first signal pickup device (PK1) in the voltage generator (10, 11) for providing a first timing signal and a second signal pickup device (PK2) angularly spaced part in advance for providing a second timing signal to a microprocessor (18) operable to detect the direction and the speed of rotation of the engine, and to generate control signals for sparking during forward or reverse running, depending on timing information provided to the microprocessor (18) by the first and second signal pickup devices (PK1, PK2). Reversal of rotation is started by providing the microprocessor (18) with a reverse control signal by a manually actuable switch device.

Abstract: A capacitive-discharge ignition system for internal-combustion engines; the system comprises a magneto generator having a rotor provided with a plurality of magnets angularly spaced on an inner peripheral surface, in which at least two adjacent magnets have a pole of the same polarity facing a stator core having a plurality of radially extending pole members; a voltage generating winding on said pole members comprises first and second coils serially connected and wound onto adjacent pole member of the stator core to supply charging voltage to the ignition circuit and a control voltage for triggering an ignition signal generating circuit. A negative voltage is detected at each revolution of the magneto generator from an intermediate output point generator of the serially connected coils and a reference point of a voltage divider and fed through electronic control switch means to activate an electronic control switch for triggering the ignition circuit.