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Patent # Description
US-9,793,846 Power conversion device
A power conversion device has an internal power supply switch and a bias power supply switch connected in parallel with the internal power supply switch,...
US-9,793,845 Method for restarting induction machine
Disclosed embodiments relate to apparatuses, methods, and systems for restarting an induction machine. In some embodiments, a method includes estimating a...
US-9,793,844 Permanent magnet motor controller
An object is to provide a permanent magnet motor controller capable of suppressing the rotary bending vibration that occurs in the permanent magnet motor...
US-9,793,843 Control device for detecting disconnection
A voltage controller generates a d-axis voltage command value and a q-axis voltage command value on the basis of a drive command signal and a three-phase...
US-9,793,842 Control of an engine-driven generator to address transients of an electrical power grid connected thereto
A technique for providing electric power to an electric power utility grid includes driving an electric power alternator coupled to the grid with a...
US-9,793,841 Sensor-less circuit and method for detecting a rotor position
In accordance with an embodiment, a sensor-less detection circuit is provided that includes a first voltage adjustment circuit coupled for receiving an induced...
US-9,793,840 Motor control apparatus
A motor control apparatus includes a counter, a margin calculation portion, and a cycle set portion. The counter counts a total number of switching the current...
US-9,793,839 Motor control circuit
A motor control circuit is disclosed, which uses one hall sensor to sense the position of the magnetic poles of three-phase motor, and to execute phase...
US-9,793,838 Auto phase adjustment system and method for motor control
A method includes measuring a speed of a motor, determining a phase angle of a motor voltage relative to a motor current based on the measured speed of the...
US-9,793,837 Motor driver and control method
Disclosed herein is a motor driver including: a motor current phase detector configured to detect a motor current phase and output a result of the detection as...
US-9,793,836 Power module and electric device for the combined powering and charging of an accumulator and a motor respectively
The invention relates to a power module (9) for converting an electric current flowing between an accumulator and an alternating-current motor, said module (9)...
US-9,793,835 Power conversion device and method for diagnosing failure thereof
Provided is a power conversion device, including a fault determination unit (11) for determining, based on phase voltages of a polyphase dynamo-electric machine...
US-9,793,834 Motor control apparatus and method
An apparatus for controlling an AC power supply for an electric motor, said AC power supply being derived from a DC voltage. The apparatus comprises a comparer...
US-9,793,833 Dynamic braking of an electric motor using capacitive load charging
The invention disclosed herein is an energy recovery system, for an electric motor, that uses the properties of dynamic braking to directly recharge a...
US-9,793,832 Comminuting machine drive system
A comminuting machine includes a frame, a comminuting rotor coupled to the frame, and a rotary drive coupled to the rotor. The rotary drive including a...
US-9,793,831 Motor control circuit and method
In accordance with an embodiment, a stopping circuit includes a detection circuit connected to a subtraction amount determination circuit. A subtraction circuit...
US-9,793,830 Self-powered sensing system for the monitoring of quasi-static structural response
A self-powered sensing system is provided for the monitoring of quasi-static structural responses. The sensing system is comprised of: an energy concentrator...
US-9,793,829 Magneto-thermoelectric generator for energy harvesting
Provided is a magneto-thermoelectric generator (MTG) device for energy harvesting and more particularly a device for converting waste thermal heat from a...
US-9,793,828 Vibration power generator
Power generated by a vibration power generator using an electret is efficiently supplied to a power supply load. A vibration power generator includes a first...
US-9,793,827 Power conversion system and method
A power conversion system includes a first converter effectively connected in series to a second converter. Each converter has a plurality of output levels. A...
US-9,793,826 Method of manufacturing a circuit device
In one form, a method of manufacturing a circuit device comprises providing a lead frame comprising a plurality of leads, each comprising an island portion, a...
US-9,793,825 Power conversion device with a voltage generation part that is configured to supply current to a sense diode...
A power conversion device includes a diode built-in transistor configured to include a transistor configured to be driven by a drive signal input into a gate, a...
US-9,793,824 Gate driving circuit, semiconductor device, and power conversion device
A gate driving circuit of embodiments is provided with a first transistor which controls a gate-on voltage applied to a gate electrode of a switching device, a...
US-9,793,823 Controller for grid tied inverter system
The present invention relates to a controller for a grid tied inverter system with an improved control configuration for increasing response speed of an output...
US-9,793,822 Method for operating an electrical circuit and electrical circuit
A method for operating an electrical circuit, in particular of a converter is described. The circuit, in at least one embodiment, includes a line-side converter...
US-9,793,820 Six-phase supplied transformer rectifier unit
A method and apparatus for forming a direct current power supply. An apparatus comprises a transformer and a rectifier. The transformer is figured to output a...
US-9,793,819 Methods and apparatus of controllers for power converter with parallel power channels having independent DC buses
Certain embodiments of the present invention relates to a method for controlling operation of a parallel converter system. The parallel converter system...
US-9,793,818 Unit current transformer device and magnetic induction power supplying device for linearly controlling output...
The present invention relates to a unit current transformer device and a magnetic induction power supplying device, and particularly to a magnetic induction...
US-9,793,817 Multiple output converter and method for controlling the same
A multiple output converter is provided. The multiple output converter includes a power conversion circuit and a switching control unit. The power conversion...
US-9,793,816 Method and circuit for peak power in quasi-resonant converters
Implementations of the present disclosure involve a circuit and/or method for a control circuit of a switched-mode power supply that allows the power supply...
US-9,793,815 Over current protection in a variable output power supply
In accordance with embodiments of the present disclosure, a switch mode power supply may include a transformer, a controller configured to generate a periodic...
US-9,793,814 Low power converter
An AC to DC converter system is disclosed in which a conversion circuit for converting an AC input signal to a DC output signal is operably coupled with an...
US-9,793,813 Step-down power conversion with zero current switching
Methods, apparatuses, computer program products, and computer readable media are disclosed herein. In one aspect, an apparatus includes a first capacitor, a...
US-9,793,812 Method for operating an inverter with reactive power capability having a polarity reverser, and inverter with...
A method for operating an inverter with reactive power capability that includes a voltage link circuit and an unfolding bridge, wherein poles of the voltage...
US-9,793,811 Buck converter and boost converter with dead time adjustment
A voltage converter includes first and second charging elements, first and second switches, and first and second switch controllers. The first switch controller...
US-9,793,810 Control method for zero voltage switching buck-boost power converters
A method comprises providing a buck-boost converter comprising a first high-side switch and a first low-side switch connected in series across an input...
US-9,793,809 Safety crowbar for voltage converters
In one example, a circuit includes a first voltage converter and a second voltage converter. The first voltage converter is configured to convert a first...
US-9,793,808 Enhanced bidirectional current sensing and replication
A current replication circuit includes a bias circuit and a first transistor sized, relative to a second transistor to be sensed, according to a first scaling...
US-9,793,807 Lossless power conversion to DC method and device
A device and a method for power conversion to DC using zero-current and/or zero-voltage switching. Provides output voltage of any level and polarity. Operates...
US-9,793,806 Switching driver capable of reducing EMI effect and power ripple
A switching driver capable of reducing EMI effect and power ripple is disclosed. When the switching driver wants to increase the voltage of an output end, a...
US-9,793,805 Charge pump current adjustment
A charge pump circuit may include an output node, a current source circuit, a current sink circuit, a first amplifier circuit, and a second amplifier circuit....
US-9,793,804 Circuits and methods for controlling a three-level buck converter
A circuit including: a control system for a three-level buck converter, the three-level buck converter including multiple input switches, each of the input...
US-9,793,803 Power converter circuit
A power converter circuit includes an input and an output. A supply circuit is configured to receive an input signal from the input and to generate a number of...
US-9,793,802 MEMS capacitive sensor biasing circuit including an integrated inductor
A MEMS capacitive sensor biasing circuit. The circuit includes a high-voltage (HV) NMOS switch, an inductor, a diode, and a capacitor. The HV NMOS switch has a...
US-9,793,801 Semiconductor device and display device
An object is to reduce power consumption of a semiconductor device including a DC-DC converter circuit. The semiconductor device includes a DC-DC converter...
US-9,793,800 Multiphase switching power supply with robust current sensing and shared amplifier
In a multiphase, current mode controlled switching power supply, current through the inductors in the various phases is sensed to determine when to turn off the...
US-9,793,799 Method and apparatus for control of semi-resonant and resonant converters
A state machine for a multi-phase voltage converter controls cycle-by-cycle switching of the phases by: entering a first state in which a control signal for the...
US-9,793,798 Compensation of errors in current limiters
The present disclosure applies to peak current limitation and also to ensuring that a minimum current condition is not exceeded, that is, that the current...
US-9,793,797 Switching apparatus and control method thereof
Disclosed are a switching apparatus including an internal circuit using an inductive element and a control method thereof. The switching apparatus includes a...
US-9,793,796 Driver controller with AC-adapted and DC-adapted control modes
Methods, devices, and integrated circuits are disclosed for a driver controller that determines whether an input is AC or DC and controls a driver in either an...
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