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.
Multi-mode active clamping power converter
A multi-mode active clamping power converter comprises an input inductor, a down-bridge switch, an up-bridge switch, a first energy-storing capacitor, a...
DC-DC power conversion apparatus and method
A DC-DC power conversion apparatus and a DC-DC power conversion method are provided. The DC-DC power conversion apparatus includes a switching circuit, a main...
Power supply device and image forming apparatus
The power supply device includes a transformer that includes primary, secondary and auxiliary windings; a switching unit that switches current flowing to the...
Power conversion apparatus
A power conversion apparatus, including a transformer, a switch, an analog controller, a digital controller, and a voltage converter-based feedback circuit, is...
A DC to DC converter includes: first and second switching elements connected at a first connection point between a first input/output terminal and a first...
Power supply circuit for driving LED lamp and power supply method, and
primary-side control circuit of flyback...
The present invention discloses a power supply circuit for driving an LED lamp and a power supply method. The power supply circuit is constituted by an AC-DC...
Switching power-supply device having wide input voltage range
Provided is a highly-efficient switching power-supply device having a wide input voltage range. The switching power-supply device includes: a first series...
Forward converter with magnetic component
A forward converter comprises a magnetic component with a transformer and a filter output inductor. Also disclosed is a method for assembly of a forward...
Current balance circuit of resonant type switching power-supply circuit
Provided is a switching power-supply device capable of balancing a plurality of converter blocks operated in parallel. The switching power-supply device...
Over-voltage protection circuit and over-voltage protection method
An over-voltage protection circuit is applied to a switching voltage converting circuit. The switching voltage converting circuit manipulates an upper bridge...
DC-DC converter with digital current sensing
A regulated DC-DC switching converter includes a bypass mode in which ends of an output inductor are coupled together. Circuitry determines output capacitor...
Driving apparatus and electric power converter
A driving apparatus includes a first potential line that applies a first potential, a second potential line that applies a second potential, a coil including a...
Power switching device, three phase bridge inverter, and method of
operating a power switching device
A power switching device includes a power terminal connected to a power supply; a load terminal connected to a load; a power switch connected between said power...
Power supply conversion apparatus with bootstrap unit
Embodiments of the present invention disclose a power supply conversion apparatus, where a control unit generates a corresponding control signal according to a...
A sequence circuit includes a power output terminal, first to third power input terminals, first to sixth resistors, first to tenth filed effect transistors...
Envelope tracking power supply with direct connection to power source
A communication device, such as a smart phone, includes an envelope tracking power supply. The envelope tracking power supply is configured for direct...
Control circuit with hysteresis for a switching voltage regulator and
related control method
A control circuit for a switching voltage regulator is configured to receive an error signal representative of a regulator output voltage in relation to a...
Constant on-time switching converter and control method thereof
A switching converter providing an output voltage has at least one switch and a control circuit. The control circuit has a slope compensation module, an output...
Reference current generator with switch capacitor
Exemplary embodiments are related to current generators. A device may include a first integration path for charging a first integration capacitor during a first...
Constant-voltage and constant-current buck converter and control circuit
A control circuit is provided for a buck converter that includes at least an inductor coupled to an output of the buck converter. The control circuit includes a...
Charge pump that allows change of output voltage by changing the wiring
A charge pump includes a chip and a package substrate packaged on the chip and installed in a circuit board. One of the 1.sup.st.about.(X-Y).sup.th external...
Charge pump regulator and control method thereof
A charge pump regulator at least includes a first charge pump circuit and a second charge pump circuit. In an enabled period, a first clock signal is provided...
Power consumption management of a switching voltage regulator
A power supply circuit (106) for a switching voltage regulator (108) connectable to a load (110) is described. In order to manage a power consumption of the...
Power supply with interference suppression, and method for operating a
A switched-mode power supply is disclosed, which includes a transformer with a primary winding and a secondary winding. A switch is coupled in series with the...
Combined active and passive harmonic mitigation devices and applications
In one embodiment, the instant invention can provide a harmonic mitigating device that can include at least the following components: an active filter; a...
Magnetic gear arrangement having a variable gear ratio
A magnetic gear arrangement is provided having a magnetically active gear member that generates a first magnetic field, which is modulated by interpoles. The...
Motor for driving lens
A motor for driving a lens is disclosed, wherein a yoke comprises a rotation prevention unit configured to prevent the bobbin from rotating.
Stepper motor with adjustable detent torque
A stepper motor has a rotor having a permanent magnet, a stator housing and a plurality of stator coil assemblies disposed within the stator housing. Each coil...
An electromagnetic generator includes a magnet assembly having permanent magnets magnetized in a direction of stacking so that surfaces thereof corresponding to...
Rotary electric machine with armature magnetic reaction compensation
A rotary electrical machine comprises a rotor including a plurality of poles and a plurality of windings (E0-E7) wound about the poles, a stator, and a...
Variable-output generator for downhole power production
Methods and systems of downhole power generation are disclosed. The method includes the steps of rotating a magnet assembly about an axis relative to a coil...
Method for producing a BLDC motor
A method for producing a brushless DC (BLDC) motor includes: providing a stator, a rotor having a shaft and a carrier element having a cutout through which the...
Method for soldering a stator to a cooler, and stator comprising a solder
connection to the stator support
A method for soldering a stator of an electric machine to a cooler is described. Firstly, the stator and/or the cooler is coated, at least partially, with a...
Electronic control device
An electronic control device including two housings coupled to each other, a first circuit board disposed in one of the two housings, a first terminal disposed...
Method of making a motor housing assembly
A motor housing assembly is formed by positioning a stator relative to a motor housing to configure a fillable gap between the stator and the motor housing, and...
Electric machine with liquid cooled housing
An electric machine having a stator, a rotor and a housing assembly with two end caps and inner and outer axially extending members. The outer housing member is...
Magnetic cap element for a stator of a generator
A stator system for a generator, in particular a generator of a wind turbine is disclosed. The stator system includes a housing element including a groove and a...
Electric machine and method to retrofit an electric machine
The electric machine (1) comprises a stator (2), a rotor (3), a cooling circuit for the stator (2) and/or rotor (3), fans (20) for cooling fluid circulation....
Device and method for generating power using buoyancy
A power generator may generate power using buoyancy having a fluid column contained by a tank having a sealable drain and a piston having a substantially hollow...
Laminated core for a magnetic bearing having individual laminations with
at least one physical interruption and...
The core of a combined radial-axial magnetic bearing is stacked with coated laminations each equipped with at least one radial cut (9). These cuts (9) prevent...
Rotor bearing assembly
A bearing assembly for a rotating shaft uses a carbide sleeve to prevent wear and carry load. The carbide sleeves provide increased life for rotating components...
Position sensing techniques
An apparatus includes a housing which defines a longitudinal axis; a positioning element which, relative to the housing, translates linearly along the...
Starting assist method and starting assist system of electric vehicle
An electric motorcycle includes an electric driving unit including an electric motor and a power transmission mechanism, and is configured to halt supplying of...
Low profile pump motor lead protector
A low profile pump motor lead protector with a head guard and a trailing guard, the head guard including a front section with a front end and a rear section...
Stator segment unit adapted to build a ring-shaped stator when assembled
A stator segment unit adapted to build a ring-shaped stator when assembled is provided. The stator segment unit includes a stator yoke with at least one stator...
Rotor fixing unit for drive motor
A rotor fixing unit for a drive motor serves which fixes a rotor core to a shaft is provided. In particular, a plurality of keyway portions, which includes...
Rotor structure for a motor
A rotor structure for a motor includes a shaft, a single magnet and two fixing seats. The single magnet has two opposite end faces. An axial hole has a maximum...
Electric motor having rotor structure for avoiding defect due to strain
generated by temperature change, and...
An electric motor having a rotor structure and a production method thereof, wherein a strain due to temperature change does not occur and a manufacturing...
Hybrid excitation rotating electrical machine
A hybrid excitation machine comprising a rotor having first and second rotor cores with a gap between in an axial direction, wherein first magnetic poles...
Stator of motor and motor
A stator of a motor comprises a stator core including a plurality of plate members stacked together; the stator core including: a yoke of a tubular shape; and...