52results about "DC/DC convertors" patented technology

An electromagnetic apparatus has a rotating element acting as a transfer bridge between two active energetic suppliers, the rotating element providing a ferromagnetic core with plural solenoid coils having induced electric energy from external permanent magnets; the core transferring energy by induction to the inner stator's wound active permanent magnet, the energy collector and inductor acting as a generator.

Disclosed is a power generator adapted to provide an electrical power greater than an input power by means of a permanent magnet. The power generator 10 comprises a rotatable rotor 12, a plurality of permanent magnets 16, and a plurality of coreless coils 18. The rotor 12 has a surface including an annular zone 14 formed around the rotational axis 13 thereof. The permanent magnets 16 are disposed along the annular zone 14 at constant intervals in the circumferential direction of the rotor 12 to form an annular array, while uniformly orienting their polarities in a direction orthogonal to the annular zone 14. The coreless coils 18 are supported by a stationary member 11 and disposed along the annular zone to form an annular array, while allowing the respective axes 19 of the coils to intersect with the annular zone 14. The permanent magnets 16 are moved along the coreless coils 18 in conjunction with the rotation of the rotor 12 induced by a rotational force supplied through a center shaft 22 from a torque amplifier 20 disposed below the rotor 12, so as to obtain an output power from the coreless coils 18.

A system for generating energy may comprise a power source capable of supplying energy in the form of electricity to an electric motor. The electric motor is energized by the power source and will cause a drive shaft to rotate. The drive shaft is mechanically connected to an electric generator capable of converting the rotation of the drive shaft into electrical energy. A load may be electrically connected to the electric generator, such that the load may receive the electrical energy generated by electric generator.

A vehicle mounted AC generator system having an AC generator mounted outside the engine / transmission compartment and connected by drive shaft with universal joints and a belt driven RPM ratio device. The ratio is set to provide accurate AC generator RPM at a preselected engine RPM. The AC generator is mechanically engageable when certain conditions are met and is disconnected when other conditions are present, including an operator emergency stop switch.

This invention is a back EMF permanent electromagnetic motor generator and method using a regauging process for capturing available electromagnetic energy in the system. The device is comprised of a rotor with magnets of the same polarity; a timing wheel in apposition to a magnetic Hall Effect pickup switch semiconductor; and a stator comprised of two bars connected by a permanent magnet with magnetized pole pieces at one end of each bar. There are input and output coils created by wrapping each bar with a conducting material such as copper wire. Energy from the output coils is transferred to a recovery rectifier or diode. The magnets of the rotor, which is located on a shaft along with the timing wheel, are in apposition to the magnetized pole pieces of the two bars. The invention works through a process of regauging, that is, the flux fields created by the coils is collapsed because of a reversal of the magnetic field in the magnetized pole pieces thus allowing the capture of available back EMF energy. Additional available energy may be captured and used to re-energize the battery, and / or sent in another direction to be used as work. As an alternative, the available back EMF energy may be dissipated into the system.

The uninterrupted battery operated generator system 50 of the present invention generates electrical and kinetic energy without using fossil fuel or external energy sources to recharge. It uses two sets of energy storage means 11, 12 alternatively, to power a rotational torque generating means 15. The rotational torque generating means 15 drives the rotational movement of a flywheel 31 coupled to gyroscopes 35, which store and multiply kinetic energy. An alternator 16 is driven by the rotational torque generating means to convert this kinetic energy into electrical energy. The flywheel 31 can also be fitted with a rail 42 engaging with a transmission roller 43 to transfer the kinetic energy via a transmission shaft 44 to a receiving system such as a vehicular or machinery transmission system. Some of the electrical energy generated can be used to recharge the energy storage means 11, 12, which have a charging time shorter than the operating time. A controller 10 connected to load sensor 19, voltage sensor 13, and frequency sensor 14 controls the power supply to the rotational torque generating means 15, thereby enhancing the energy efficiency, thus creating an uninterrupted battery operated generator system 50.

A charging facility collects DC power supplied from a plurality of power supply devices in a DC bus, and then uses the DC power to charge an on-board rechargeable battery for an electric vehicle. In an energy management method for a charging facility, each power supply device operates under independent automatic control according to a change in voltage in the DC bus. An upper-level control unit which collectively controls a plurality of power supply sources is not required, and a plurality of power supply devices can be combined with a simple configuration achieved by merely connecting respective output terminals to the DC bus. In addition, the entire charging facility can be operated flexibly. Thus, it is possible to achieve a simple configuration and to allow flexible operation while a plurality of power converters are combined with a system power supply.

An exemplary embodiment provides an electrical machine apparatus that includes a rotor coupled to an armature and a stator surrounding the rotor. The stator has a series of coils; the series of coils configured into a first group of coils and a second group of coils, the first group of coils electrically and magnetically isolated from the second group of coils. The electric machine is capable of simultaneously acting as an electric motor and generating electricity as an alternator.

A generator comprising a magnetic gear, the magnetic gear comprising a stationary member comprising a set of electromagnets, a first moveable member comprising a set of magnets, and a second moveable member disposed between the first moveable member and the stationary member. The second moveable member comprises a set of core members. The first and second moveable members are magnetically coupled to define a gear ratio therebetween and the electromagnets are operable to control the gear ratio. The stationary member comprises a stator of the generator and the first moveable member comprises an armature of the generator, wherein the armature is arranged to induce an electrical current in a set of generator windings disposed around the stator. The second moveable member comprises an input means arranged to receive a drive force. The gear ratio is variable, such that a variable output speed may be produced for a given input speed. In this way, the electrical output of the generator is decoupled from the input speed, so as to provide sufficient power for a range of input speeds.

The vehicle generator having a circuit protective cover of present invention comprises a housing, an electric circuit device and a protective cover. The housing encloses a stator on which an armature coil is wound and a rotor located inside the stator to face each other. The electric circuit device is located outside the housing for rectifying AC induced in the armature coil to DC. The protective cover covers the electric circuit device. The protective cover is made of a composite material including a polyamide and an elastomer. It is desirable that the protective cover has a mechanical properties including: a maximum elongation of 10% or higher; and a Charpy impact strength with notch of 78 kJ / m2 or higher.

A rotating electrical machine includes a flange provided at one end of a hollow frame in an axial direction; a rotor including a shaft, the shaft being rotatably supported by the flange; and a stator fixed to an inner section of the frame, the stator surrounding the rotor. The rotor includes a first rotor core and a second rotor core arranged in the axial direction and having recesses formed in the axial direction, and a rotor-core space defined by the recesses that are formed in the first rotor core and the second rotor core and that face each other.

A generator including a first magnetic assembly and a second magnetic assembly wherein the first and second magnetic assemblies are arranged in parallel for the production of a magnetic field and a null magnetic field region, a rotor positioned between the first and second magnetic assemblies the rotor being coupled to a drive shaft extending through the first and second magnetic assemblies wherein a portion of the rotor is positioned in the null field region, a least one current transfer mechanism coupled to the rotor in the null field region and at least one current transfer mechanism coupled to the shaft, a drive mechanism attached to the shaft, whereby actuation of the drive mechanism causes rotation of the rotor in the magnetic field to produce a electric potential between the first and second current transfer mechanisms.

A power conversion and distribution system. In one embodiment low voltage source components convert a high voltage AC power source to a relatively low voltage supply and provide a direct current output. First superconductor wires carry current from the low voltage source components to a load, and second superconductor wires carry current from the load to the low voltage source components. Individual ones of the first wires are grouped with individual ones of the second wires so that wires connected to carry current in opposite directions are in such sufficiently close proximity that additives of self-fields generated by individual ones of the wires during power transmission result in reduction of the magnetic fringe field generated, thereby increasing the current carrying capacity of the wires.

A magnetic force based automatic power generation device includes a ring body, which has an inner circumference along which spaced permanent magnets are arranged and an outer circumference along which spaced electric magnets are arranged. A driving element is coupled to a top of the ring body. A speed reduction device is coupled to a bottom of the ring body. The speed reduction device is coupled to a power generation element. By starting the ring body by means of the electric magnets and the permanent magnets, the ring body is allowed to be continuously driven by alternating magnetic attractive and repulsive forces induced between magnetic poles of the permanent magnets and the electric magnets and a driving force generated by the driving element for fast rotation, which in turn drives the speed reduction device and the power generation element, so that the power generation device is caused to generate electricity.

A charging facility collects DC power supplied from a plurality of power supply devices in a DC bus, and then uses the DC power to charge an on-board rechargeable battery for an electric vehicle. In an energy management method for a charging facility, each power supply device operates under independent automatic control according to a change in voltage in the DC bus. An upper-level control unit which collectively controls a plurality of power supply sources is not required, and a plurality of power supply devices can be combined with a simple configuration achieved by merely connecting respective output terminals to the DC bus. In addition, the entire charging facility can be operated flexibly. Thus, it is possible to achieve a simple configuration and to allow flexible operation while a plurality of power converters are combined with a system power supply.

A self-generating power generation system is a generating system that is designed to use a portion of the incoming power to generate additional power to make the system highly efficient. The system may be used in a motor vehicle and take advantage of the available kinetic energy of the turning wheels regenerate power to multiply the efficiency. The system uses two batteries, a brushless dc motor, a generator, gearing, relays, switches, a regulator, a diode, and a controller.

The present invention is directed to a generation means for generating electrical power to operate vehicle systems and / or for recharging batteries used by electric and / or hybrid cars. The present invention may also generate electric power to operate an electric motor that can also drive a vehicle. The present invention may also use the electric power generated for other uses as well. It comprises an engine that is connected to at least one rotatable member connected for rotation therewith and at least one generator that is connected to the rotatable member through a rotor in said generator to generate electrical energy.

An apparatus is provided and includes a hub, including first and second opposing faces, a first sidewall fixed at opposite ends thereof to the first and second opposing faces to define a first interior between the first and second opposing faces and a second sidewall fixed to one of the first and second opposing faces to define a second interior within the first interior, a first assembly, disposed within the second interior, to generate current from input mechanical energy and a second assembly, electrically coupled to the first assembly and disposed within the first interior, to generate mechanical energy from current associated with the current generated by the first assembly.

There is provided a system that includes a power feed that distributes a direct current (DC) voltage in a building. The DC voltage is In a range of about 300-600 volts DC. The system also includes a motor, and a motor drive. The motor drive receives the DC voltage via the power feed, and from the DC voltage, derives an output that drives the motor.

An improved hybrid magnetic engine / generator apparatus and method includes a shaft. A pair of oppositely positioned ferrous metal arms is connected to the shaft where the ferrous metal arms include a first end and a second end. Wire is wrapped in non-overlapping fashion around the ferrous metal arms and the wire includes a positive power connection and a negative power connection. A power source is connected with positive power connection and the negative power connection. A stacking magnet is located at the second end of the ferrous metal arms and an opposing magnet is located opposite from and in proximity to the first end of both of the oppositely positioned ferrous metal arms. A device for selectively connecting with the power source is provided such that the wire is intermittently charged such that polarity at the first end of the ferrous metal arms is intermittently changed.

There is provided a closed-loop electrical energy regenerative system comprising (i) a regenerative electric motor for receiving a load of electrical energy for the purpose of conversion into kinetic energy; (ii) an alternator for generating an output load of electrical energy; (iii) a rotating shaft and at least one flywheel, the rotating shaft being configured to be connected to the regenerative electric motor, to the alternator and to the at least one flywheel for transferring a first portion of the kinetic energy from the regenerative electric motor to the alternator for the purpose of generating the output load of electrical energy and for transferring a second portion of the kinetic energy to the at least one flywheel for storage for the purpose of assisting in rotating the rotating shaft through subsequent cycles; (iv) a first electrical output for directing a first portion of the output load of electrical energy outside the system for consumption by an electric power system; and a second electrical output for directing a second portion of the output load of electrical energy back to the regenerative electric motor for operation through the subsequent cycles. There is also provided a closed-loop electrical energy regenerative network and method.

An electric fan-type power generating device includes a housing receiving an electric motor that is supplied electricity from a chargeable battery to drive a first fan and a second fan to rotate at high speeds to thereby generate wind power close to a third fan mounted to a first generator. The first fan uses the wind power to drive the third fan in the housing. The third fan drives the first generator to generate electricity that is supplied to the chargeable battery. The second fan uses the wind power in the housing to drive a fourth fan to rotate. The fourth fan drives the second generator to generate electricity that is supplied to the chargeable battery. The chargeable battery recycles the electricity that supports operation of the electric motor for generating wind power. Furthermore, the wind power drives the first and second generators to continue generating electricity.