At Patents you can conduct a Patent Search, File a Patent Application, find a Patent Attorney, or search available technology through our Patent Exchange. Patents are available using simple keyword or date criteria. If you are looking to hire a patent attorney, you've come to the right place. Protect your idea and hire a patent lawyer.
Dynamic IGBT Gate Drive For Vehicle Traction Inverters
A hybrid electric vehicle includes a traction battery, traction motor and power inverter therebetween. The power inverter converts the DC power of the traction...
MOTOR CONTROL APPARATUS HAVING FUNCTION OF DISCHARGING ENERGY REMAINING IN
A motor control apparatus includes a PWM rectifier which converts AC power on a three-phase AC input power supply side into DC power or which converts DC power...
ELECTROSTATIC MACHINE SYSTEM AND METHOD OF OPERATION
An illustrative electrostatic machine includes a shaft that is configured to rotate about an axis, a rotor electrode, and a stator electrode. The rotor...
Method and Circuit for the Improved Use of Capacitance in an Intermediate
The disclosure relates to a method and a circuit for the improved use of a capacitance in an intermediate circuit. According to the disclosure, a change in a...
Method to Generate Multilevel Inverter Modulation Control Signals
A method generates space vector modulation signals for a multi-level power inverter using space vector pulse width modulation (SVPWM). A reference voltage and...
BRIDGELESS RESONANT AC-DC CONVERTERS AND SYSTEMS AND CONTROL SYSTEMS
An AC-to-DC converter includes a multi-resonant switching circuit including an AC-AC stage soft-switched LC network that converts a low-frequency low-amplitude...
OUTPUT POWER ADJUSTING METHOD FOR INVERTER
An output power adjusting method is applied on an inverter. The inverter includes a capacitor to store direct current (DC) electricity provided by a...
Synchronous Rectifier and Alternator Using the Same
A rectifier 107 includes a rectifying MOSFET 101 that performs synchronous rectification, a control circuit 106 that inputs a voltage across a pair of a...
POWER CONVERSION TECHNIQUES
A power supply that includes a first current generator circuit that is coupled to a first transformer and generates a first waveform and a second current...
NON-ISOLATED AC-DC CONVERSION POWER SUPPLY
A non-isolated capacitive AC-DC conversion power supply includes a current limiting input module that receives AC input power and has an output capacitor that...
POWER CONVERSION APPARATUS
A power conversion apparatus includes a semiconductor module that includes a main body containing at least one semiconductor element, power terminals...
THREE-LEVEL CONVERTER AND METHOD FOR CONTROLLING THREE-LEVEL CONVERTER
A three-level converter and a method for controlling a three-level converter, wherein the third (S31, S32, S33), the fourth (S41, S42, S43) and the fifth (S51,...
POWER FLOW CONTROLLER WITH A FRACTIONALLY RATED BACK-TO-BACK CONVERTER
A power flow controller with a fractionally rated back-to-back (BTB) converter is provided. The power flow controller provide dynamic control of both active...
HIGH VOLTAGE DIRECT CURRENT TRANSMISSION SYSTEM
A high voltage direct current (HVDC) transmission system is provided. The high voltage direct current (HVDC) transmission system includes: a first power...
ISOLATED DC-DC POWER CONVERSION CIRCUIT
A power transfer system includes DC-DC power conversion circuitry that has a first switch and a second switch on either side of a transformer with a first...
GATE-POWER-SUPPLY DEVICE AND SEMICONDUCTOR CIRCUIT BREAKER USING SAME
A gate-power-supply device is provided with an inverter circuit, a transformer, and rectifier circuits. The device includes secondary-side parallel capacitors,...
SWITCHING POWER SUPPLY APPARATUS FOR GENERATING CONTROL SIGNAL FOR
LOWERING SWITCHING FREQUENCY OF SWITCHING...
A switching power supply apparatus includes: an DC/AC converter unit for converting a DC voltage to an AC voltage based on switching operation of switching...
POWER CONVERSION APPARATUS AND OVER POWER PROTECTION METHOD THEREOF
A power conversion apparatus and an over power protection method thereof are provided. A number of times a detection voltage being greater than a first...
Zero Voltage Soft Switching Scheme for Power Converters
A control scheme and architecture for a power conversion circuit employs two bidirectional switches and a zero voltage switching (ZVS) scheme for the high-side...
Dual Mode DC-DC Converter
In a method of operating a dual mode DC-DC converter having first and second bridge converters connected via a transformer, a capacitor in series with each...
To provide a voltage regulator capable of using as a capacitor of a phase compensation circuit, a capacitor large in capacitance value per unit area and thin...
Provided is a voltage regulator in which an output current can be controlled stably and accurately to an overcurrent protection set value without the need of...
Configurable Power Supply Circuit with External Resistance Detection
A power supply circuit, suitable for use in an integrated circuit, the circuit configured to detect whether an output voltage has been specified using an...
CIRCUIT FOR CONTROLLING POWER SUPPLY
A circuit for controlling power supply includes a first switch situated between a first power supply and a first node coupled to a circuit block, a second...
In a converter, the source of a first FET and the drain of a second FET are connected to one end of an inductor while the source of a third FET and the drain...
BUCK-BOOST CONVERTERS AND POWER MANAGEMENT INTEGRATED CIRCUITS INCLUDING
A buck-boost converter includes: a converting circuit; a ripple injector; a hysteresis comparator; and a switching controller. The converting circuit is...
SYSTEM AND METHOD TO IMPROVE STANDBY EFFICIENCY OF LLC CONVERTER
A system includes an LLC converter to convert an input DC voltage to an output DC voltage. A burst generator generates a switching signal having a burst time...
DIFFERENTIAL DYNAMIC CHARGE PUMP CIRCUIT
A differential dynamic charge pump circuit comprising; a first charging stage in series with a second charging stage; the first charging stage comprising a...
A power system is disclosure. The power system includes a processor, a power supply device, and a power-managing module. The power supply device includes a...
SYNCHRONOUS ELECTRIC MACHINE WITH TWO ROTORS
A synchronous electric machine includes a stator having a plurality of teeth with first and second active surfaces; a first and second stator windings having...
Motor Core Having Separately Processed Rotor and Stator Laminations
Methods for forming a motor core having separately processed stator and rotor laminations are disclosed. The stator and rotor laminations may be formed from a...
A brushless motor includes a first motor unit and a second motor unit having a common rotary shaft and coupled to each other in an axial direction in which the...
ROTATING ELECTRIC MACHINE AND METHOD OF OPERATING THE SAME
Provided is an electric motor having improved overall cooling efficiency by enabling a coolant to flow around a stator and around and through a rotor in...
Motor Housing with Integral Gear Housing
A motor assembly is provided that utilizes a single piece drive gear and bearing enclosure configured so that the end wall of the enclosure also serves as one...
SPINDLE MOTOR AND HARD DISK DRIVE INCLUDING THE SAME
A spindle motor includes a stator including a sleeve, and a rotor forming a bearing clearance with the sleeve, the bearing clearance being filled with a...
Electromagnetic platform motor (EPM) (EPM-1) (EPM-2)
The presence invention is an electromagnetic platform motor on track wheels that convert reciprocating motion into rotation motion that produces torque force...
ROTOR INCLUDING BALANCER WEIGHT AND MOTOR
A rotor capable of fixing a balancer weight by an easier method. The rotor includes a shaft; a core having a core hole penetrating the core in an axial...
REDUNDANT MODULAR PIVOT ANGLE MOTOR
This present disclosure relates to a motor arrangement for controlling pilot valves having at least three motors, having at least one stator each and at least...
ELECTRIC MACHINE, BARRIER AND ASSOCIATED KIT
According to an embodiment of the invention, an electric machine is provided. The machine includes a support structure, a stator secured to the support...
DRIVE UNIT, ESPECIALLY AN ACTUATOR UNIT IN A VEHICLE
A drive unit, especially an actuator unit in a vehicle, comprises an electric drive motor the motor shaft of which is rotatably mounted in bearings. A clamping...
Electric Motor With Radially Mounted Magnets
An electric device includes: a first set of magnets arranged in an annular array about a central axis of the device; a second set of magnets arranged in an...
END TURN SUPPORT AND COOLING FIXTURE
A generator rotor system having various features is disclosed. The generator rotor system has at least one main stage generator rotor with winding-pole sets...
ELECTRONICALLY COMMUTATED DC MOTOR, IN PARTICULAR FOR AN OIL PUMP
An electronically commutated DC motor has a stator wound with a multi-phase stator winding, a permanent magnet rotor mounted rotatably about a motor axis, a...
Hybrid Conductor for Generator Stator Winding
A generator comprises a rotor to be driven for rotation adjacent a stator. The stator includes laminated core teeth having circumferentially intermediate slots...
Lamination Clamping Structure
A generator rotor system having various features is disclosed. The generator rotor system has at least one main generator rotor with winding-pole sets spaced...
ROTOR OF ELECTRIC MOTOR WITH PERMANENT MAGNETS
A rotor of an electric motor with permanent magnets includes a pack of laminations made of ferromagnetic material with slots--for the permanent magnets which...
Brushless Electrical Machine with Permanent Magnets
The machine is designed for traction motors in electrically driven vehicles, for regulable motors for drives in machine tools with CNC and for other...
ELECTRIC ROTATING MACHINE
In an electric rotating machine, a stator has an armature coil wound around an armature core segments with M pairs of poles, and N pairs of field sources...
AIR-COOLED ELECTRIC MACHINE HAVING COOLING RIBS FORMED FROM STATOR SHEET
An electric machine has rotor rotatably supported in bearings for rotation about an axis of rotation, a stator surrounding the rotor with respect to the axis...
IRON CORE MEMBER, INNER ROTOR TYPE STATOR FOR ROTATING ELECTRICAL MACHINE,
AND METHOD FOR MANUFACTURING INNER...
An iron core member has: first divided yoke portions; second divided yoke portions alternately arranged with the first divided yoke portions; a first tooth...