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Patent # Description
US-9,548,691 Variable speed constant frequency power generator including permanent magnet exciter
A variable speed constant frequency (VSCF) power generator includes a rotating direct current (DC) power source, rotating multi-phase generator main field...
US-9,548,690 System and method for adjusting current regulator gains applied within a power generation system
In one aspect, a method for controlling the operation of a power generation system configured to supply power to an electrical grid may generally include...
US-9,548,689 Control apparatus, control method, and computer readable medium
A control apparatus having high control performance is provided. A control apparatus according to an aspect of the present invention is a control apparatus that...
US-9,548,688 Motor control apparatus
A motor control apparatus operates a power conversion circuit connected between a direct current power source and a motor, which performs mutual conversion...
US-9,548,687 Method of estimating rotational position of motor, and control apparatus of motor
A method of estimating a rotational position of a motor having saliency, the method including the steps of a) superimposing, on a drive voltage for the motor, a...
US-9,548,686 Angle/frequency selector in an electric motor controller architecture
A motor controller architecture and method of operating the same. The motor controller includes a function for estimating the low speed operation of the motor,...
US-9,548,685 Over-voltage prevention device and current rectifying circuit
According to one embodiment, an over-voltage prevention device includes a first short-circuit device provided between a secondary side of a wound-rotor...
US-9,548,684 Current control in brushless DC motors
A method and apparatus for controlling a brushless direct current motor. An H-bridge is configured to couple a direct current power source to windings of the...
US-9,548,683 Motor controller
When a control device of a motor controller simultaneously rotates a first DC motor and a second DC motor by controlling a first circuit, a second circuit and a...
US-9,548,682 Actuator with electric motor and motor controller
An actuator (1M, 1S) with a motor (12) and a motor controller (11) is configurable to operate as a master or a slave to another actuator which is coupled...
US-9,548,681 Vortex flux generator
A method and apparatus for generating electricity by electromagnetic induction, using a magnetic field modulated by the formation, dissipation, and movement of...
US-9,548,680 Self power SSHI circuit for piezoelectric energy harvester
A self-power synchronized switch harvesting on inductor circuit for harvesting energy from a piezoelectric element generating an AC voltage, comprises an...
US-9,548,678 Electric field activation of shape memory ceramics
Articles and methods in which an electric field is used to actuate a material are generally described. Provided in one embodiment is a method including applying...
US-9,548,677 Microelectromechanical (MEMS) manipulators for control of nanoparticle coupling interactions
A nanopositioning system for producing a coupling interaction between a first nanoparticle and a second nanoparticle. A first MEMS positioning assembly includes...
US-9,548,676 Power conversion apparatus
A power conversion apparatus that switches, with a relay unit, from a disconnected state to a connected state between a connector and at least one of a...
US-9,548,675 Method and device for discharging an inverter capacitor
The invention relates to a control device for triggering a semi-conductor switch of an inverter, the control device comprising: a switching signal amplification...
US-9,548,674 Electric power receiving device and method of receiving electric power
An electric power receiving device according to the invention receives an electric power from a primary coil, with which a first alternating voltage is applied...
US-9,548,673 Master-slave voltage doubling full-wave rectifier for wireless power transfer system
The invention includes two parallel paths. A first path is composed of two contact ends of a first electronic switch and a first, third and fifth diodes, which...
US-9,548,672 Electric power converter
An electric power converter has a stacked body formed by stacking a plurality of semiconductor modules and coolers, a capacitor, and positive and negative bus...
US-9,548,671 Voltage booster for utility meter
A utility meter configured for connection to an AC power line includes a meter housing with a plurality of electronic components arranged within the meter...
US-9,548,670 Methods and systems for calibrating a resonant converter
Methods and systems for calibrating an inductor-inductor-capacitor (LLC) resonant converter are provided herein. The method includes calculating input voltage...
US-9,548,669 Synchronous start-up of parallel power converters in a switched-mode power supply
Methods and apparatuses for controlling synchronous start-up of power converters arranged in parallel in droop load share switched-mode power supplies are...
US-9,548,668 Hybrid power converter and method
A converter comprises a non-isolated stage coupled to an input dc source, wherein the non-isolated stage is configured to operate at a PWM mode and the...
US-9,548,667 Constant on-time (COT) control in isolated converter
The present invention discloses a constant on-time isolated converter comprising a transformer with a primary side and a secondary side. The primary side is...
US-9,548,666 Method and apparatus for offline switch mode power supply with dithered switching frequency
A circuit for use in a switched mode power supply comprising includes an integrated circuit, a transformer, a capacitor, a low voltage circuit and a current...
US-9,548,664 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,...
US-9,548,663 Circuitry and method for adjusting output voltage
The present invention discloses a circuitry for adjusting output voltage, which is set between an input voltage source and an internal device, and the circuitry...
US-9,548,662 Switching power-supply circuit
A switching power-supply circuit includes a transformer, a first switching element, a first rectifying/smoothing circuit generating a first output voltage by...
US-9,548,661 DC-DC converter and electronic system including the same
A DC-DC converter is provided. The DC-DC converter includes at least one converter circuit configured to include an inductor and to supply a current to a load...
US-9,548,660 Circuit and method to compensate for equivalent series inductance (ESL) effects in a buck regulator
A fast transient switching voltage regulator includes a reference signal generator to provide a reference in a feedback path to control switching. The reference...
US-9,548,659 Audio frequency deadband system and method for switch mode regulators operating in discontinuous conduction mode
A controller for controlling operation of a switching regulator including a modulator, a discontinuous conduction mode (DCM) controller, an audible DCM (ADCM)...
US-9,548,658 Control circuit, switching power supply and control method
A control circuit configured to control a switch-type converter, can include: (i) a state detect circuit configured to generate an error amplifying signal...
US-9,548,657 Power device
When a control device simultaneously drives first and second direct-current power converter circuits, the control device can arbitrarily control a first voltage...
US-9,548,656 Low voltage ripple charge pump with shared capacitor oscillator
A low voltage ripple charge pump with slew rate control includes a frequency divider, a clock generator, a current mirror, a switching circuit, a diode network,...
US-9,548,655 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...
US-9,548,654 DC-DC converter with temperature, process and voltage compensated dead time delay
Temperature, process and supply compensated delay circuits, DC to DC converters and integrated circuits are presented in which switch driver dead time delays...
US-9,548,653 Pre-bias startup of a converter
A method includes comparing, by a voltage-second (VS) controller, a first duty cycle used to control a first switch at a primary side of a power transformer of...
US-9,548,652 System and method providing over current protection based on duty cycle information for power converter
System and method for protecting a power converter. The system includes a duty-cycle detection component configured to receive a modulation signal, determine a...
US-9,548,651 Advanced control circuit for switched-mode DC-DC converter
A circuit for controlling a switched-mode DC-DC converter. An inductor is connected between a switching node and an output node, and an output capacitor is...
US-9,548,650 AC power monitoring and parameter determination
Devices and methods for monitoring and determining alternating current (AC) power system parameters are provided. In some implementations, the device can...
US-9,548,649 DC-DC converter and display device including the same
A DC-DC converter includes: a converter including a first transistor, a second transistor and an inductor; a first gate driver and a second gate driver...
US-9,548,648 Switched reference MOSFET drive assist circuit
A power converter includes at least a first phase including a high-side MOSFET transistor (HSA) and a low-side (LS) MOSFET transistor (LSA) driving a first...
US-9,548,647 Low EMI driver circuit
A driver circuit, in accordance with one example, includes a controllable current source operably coupled to the load and configured to sink or source a first...
US-9,548,646 Linear vibration motor
Disclosed herein is a linear vibration motor including: a stator part having an internal space formed therein and including a main magnet mounted therein; a...
US-9,548,645 Homopolar motor-generators
A motor-generator utilizes a multi-part rotor encircling a stator, the rotor including a plurality of rotor segments.
US-9,548,644 Method of resin sealing permanent magnet and laminated core manufactured thereof
A method of resin sealing a permanent magnet in a magnet insertion portion of a laminated body, the body formed by laminating plural core sheets and including...
US-9,548,643 Load cell on EMA housing with trim resistors
A instrumented housing for an electric motor actuator is provided. The instrumented housing may have a ribbon gage coupled to a housing of an electrical motor...
US-9,548,642 Fiber optic sensing apparatus for detecting stator slot temperatures and stator including such apparatus
A sensing apparatus (20) based on fiber optics including fiber gratings for monitoring stator slot temperatures in an electromotive machine (10) is provided....
US-9,548,641 Linear and rotary actuator system
A linear and rotary actuator system includes a shaft member moving linearly in an axial direction and rotating around an axis line, a hollow rotor surrounding...
US-9,548,640 Rotor with cooling manifolds
A rotor is disclosed, which includes a plurality of axially extending slots disposed about the rotor; a plurality of conductors radially stacked within each of...
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