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Patent # Description
US-9,991,795 Power converter with controllable DC offset
An electrical power conversion system includes an alternating current (AC)-to-direct current (DC) power converter that is configured to convert power between AC...
US-9,991,794 Hybrid capacitive-inductive voltage converter
An inverting buck voltage converter constructed of a switched-mode hybrid topology, with a capacitive input stage and an inductive output stage. The input stage...
US-9,991,793 Power supply circuit and control method for the same
According to one embodiment, a power supply circuit is adapted to turn on a switching transistor connected between an input terminal and an output node and...
US-9,991,792 Current sensing with RDS.sub.ON correction
Current sensing with RDS.sub.ON correction is disclosed. In an embodiment, a method comprises: measuring an approximate temperature of a MOS transistor switch...
US-9,991,791 System and method for a switched-mode power supply
In accordance with an embodiment, a method of operating a switched-mode power converter includes measuring an input voltage of the switched-mode power...
US-9,991,790 Current control circuit
A current control apparatus arranged to regulate an electric current flowing between a load and an external electric circuit includes a current control loop...
US-9,991,789 Electric motor vehicle
The electric motor vehicle includes a voltage conversion circuit, a primary-side smoothing capacitor, a battery, a system main relay, an inverter circuit, a...
US-9,991,788 Power factor correction circuit for regulating operating frequency control circuit of power factor correction...
A control circuit of a power factor correction circuit including two channels, each of which includes a switching transistor, an inductor and a rectification...
US-9,991,787 Fast startup control circuit for switch mode power supply
A control circuit for a switch mode power supply (SMPS) includes a power switch for coupling to a primary winding of the power supply and a startup resistor...
US-9,991,786 Power control device and method thereof
An embodiment relates to a power control device and a technology capable of stably supplying power when an electrical fuse boots up. The power control device...
US-9,991,785 Electric power converting device
The objective of the present invention is to provide an electric power converting device with which can executes a ground fault detection in a short time with...
US-9,991,784 Dynamic current limit circuit
A system is disclosed which provides a dynamic current limit circuit that accurately defines both the lower and the upper limits for the current limit. The...
US-9,991,783 Method and apparatus for discharging an energy store in a high-voltage power supply system
A method and to a device for discharging an energy store, in particular an intermediate circuit capacitor, in a high-voltage power supply system, in particular...
US-9,991,782 Control of conversion ratios of a power source block and bidirectional active filter
Methods, systems and apparatuses for voltage regulation are disclosed. For an embodiment, a voltage regulator includes a power source block configured to...
US-9,991,781 Power supply and driving method of the same
A power supply includes a direct current to direct current converter that includes at least one switching element and that converts an externally supplied input...
US-9,991,780 Devices and methods of cancelling the switching noise from power management integrated circuits
A power management device includes a first power unit, a second power unit, and a control unit. The first power unit receives a first control signal of a first...
US-9,991,779 Harmonic reduction apparatus for wireless power transfer systems
A device comprises a switch network coupled to a power source, wherein the switch network comprises a plurality of power switches, a transmitter resonant tank...
US-9,991,778 Balancing current within a modular converter system
To provide current balancing between paralleled first and second inverter units of a modular converter system, a system controller is configured to determine a...
US-9,991,777 Method and circuitry for generating pulse width modulated signals
A method of generating pulse width modulated (PWM) signals includes receiving a coarse signal correlated to the widths of pulses to be generated in the PWM...
US-9,991,776 Switched mode power supply converter
A method and apparatus for switched mode power supply (SMPS) system includes circuitry configured to produce a voltage output based on an input voltage, the...
US-9,991,775 Constant on-time converter having fast transient response
The present disclosure provides a constant on-time converter having fast transient response, which adaptively adjusts an on-time and an off-time by a first...
US-9,991,774 DC field gradient motor
A field gradient motor with a stator solenoid coil, a stator solenoid coil retained by a stator solenoid coil housing, a shaft rotatably retained in proximity...
US-9,991,773 Low cost limited rotation rotary actuator
A limited rotation electromechanical rotary actuator includes a stator having an aperture sized to accept a rotor assembly and a rectangular coil. A rotor...
US-9,991,772 Low axial force permanent magnet machine and magnet assembly for permanent magnet machine
A rotor or stator hub for an electric machine includes a plurality of magnets arranged in a predetermined same pattern on a plurality of uniformly sized carrier...
US-9,991,771 Active control system for a variable electromotive-force generator with applications to wind turbines, ships,...
This invention relates to an active control system for a variable electromotive-force generator (VEG) for use in wind turbines, ships, hybrid vehicles, and...
US-9,991,770 Spring post for brush card for a power tool
An electric motor is provided including a stator and an armature rotatably received within the stator, the armature having an armature shaft on which a...
US-9,991,768 Windscreen wiper motor and suppression assembly for a windscreen wiper motor
A windscreen wiper motor with a housing is disclosed. In the housing, an armature shaft is arranged with a commutator which cooperates with carbon elements...
US-9,991,767 Head end power module having two inverters
The present disclosure is directed to a method for generating power for a machine. The method may include inverting a common power at a first location and...
US-9,991,766 Valve-timing control apparatus for internal combustion engine and power-feeding mechanism used in valve-timing...
A valve-timing control apparatus includes a motor housing formed with an accommodating space; a permanent magnet provided along an inner circumference of the...
US-9,991,765 Cooling device for an electric motor
A cooling device for an electric motor includes at least one closed capillary tube, within which a cooling fluid is located and which is introduced into an...
US-9,991,764 Cooling structure of oil cooling motor
A cooling structure of an oil cooling motor may include a housing, a front cover and a rear cover each mounted at both sides of a housing along a length...
US-9,991,763 Gas turbine engine with multiple electric generators
A power plant for a small aircraft with a gas turbine engine that drives a number of electric generators, where a gear box transmit power from the engine shaft...
US-9,991,762 Electric motor connections for power tools
In at least one illustrative embodiment, a power tool may comprise an electric motor comprising a rotor configured to rotate about an axis, a stator assembly...
US-9,991,761 Actuation device for a clutch device
An actuation device for a clutch device is provided having a magnetic field brake with a brake stator and a brake rotor. This magnetic field brake can be...
US-9,991,760 Drive device for vehicle
A vehicular drive system is provided with at least one electric motor and a helical gear portion which are accommodated within a casing formed by a plurality of...
US-9,991,759 Multi-directional air cooling of a motor using radially mounted fan and axial/circumferential cooling fins
An airflow system may comprise a fan radially mounted on a motor with a first plurality of fins surrounding the motor disposed to provide airflow in a first...
US-9,991,758 Electric machine
An electric machine comprises a sealed outer casing defined by a body and by a cover coupled to the body, a stator and a rotor the latter two being mounted...
US-9,991,757 Three-phase rotary electric machine
Communication grooves for communicating an outer circumferential side with an inner circumferential side of a stator core are formed at a contact face, that...
US-9,991,756 Stator, motor and compressor
A stator for a motor of a compressor includes a stator core, insulator, coil, slot insulator, and inter-coil insulator. The stator core has a plurality of tooth...
US-9,991,755 Motor unit having insulation member
A motor unit having an insulation member is provided. The motor unit includes rotor cores formed in a radial direction on an exterior circumference of a motor...
US-9,991,754 Embedded permanent magnet rotary electric machine
A permanent magnet 21 is housed in a magnet housing aperture 20, an adhesive is disposed only between an outside wall surface 20a that is positioned on a...
US-9,991,753 Variable wireless transfer
A technology for a wireless transfer station that is operable to wirelessly transfer data or energy. Energy or data can be wirelessly transferred to another...
US-9,991,752 Wireless power feeding method
A direction of the first power transmission antenna is detected in a power transmission stop state from the slave power transmission apparatus after detection...
US-9,991,751 Short range wireless communication
An apparatus can have a power supply circuit configured to receive, from an antenna, a first signal at a frequency exceeding a GHz, and including a rectifier...
US-9,991,749 Coil unit, wireless power feeding device, wireless power receiving device, and wireless power transmission device
A coil unit, a wireless power feeding device, a wireless power receiving device, and a wireless power transmission device are provided that are capable of...
US-9,991,748 Wireless power transmission system and power transmission device
A power transmission device includes: an oscillator including first through fourth switching devices, and converting DC power into AC power by pulses supplied...
US-9,991,747 Signaling charging in wireless power environment
Exemplary embodiments are directed to wireless power transfer including generating an electromagnetic field at a resonant frequency of a transmitter to create a...
US-9,991,746 Vehicular system, communication apparatus, power-feeding device, and non-transitory tangible computer-readable...
A vehicular system mounted to a vehicle includes: a power-feeding device that wirelessly feeds power to a power-feeding object device; a communication device...
US-9,991,744 Wireless power receiving device and apparatus including the same
A wireless power receiving device includes a first coil partially disposed in an outer region and configured to transmit and/or receive data; and a second coil...
US-9,991,743 System and method for providing wireless power in a removable wireless charging module
A wireless charging module includes an antenna and a wireless charger module. An enclosure is configured to fit at least partially within an optical drive bay...
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