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Patent # Description
US-9,461,571 Method and electronic circuit for motor stall detection
A method of detecting stall of a multi-phase motor operated in a micro-stepped mode, the method comprising: a) applying at least two phase-shifted micro-stepped...
US-9,461,570 Variable torque control of a stepper motor
A stepper motor may be controlled by a controller to provide extended revolution of a motor shaft while operating in a first mode and to allow a user to...
US-9,461,569 Motor control device, robot hand, robot, and motor control method
A motor control device controls a motor using an angle data signal and a rotational speed signal output from a rotation detector detecting a rotation state of a...
US-9,461,568 Motor control device and steering device for vehicle
In a state in which the energization in the first direction is possible between the motor and the drive circuit and the motor is not rotating at high speed,...
US-9,461,567 Drive control device for drive system including vertical carrier machine
The drive control device for a drive system including a vertical carrier machine includes: a drive control device (A) for an electric motor (M1) mainly for...
US-9,461,566 Drive arrangement for the motorized adjustment of an adjustment element of a motor vehicle
The invention relates to a drive arrangement for the motorized adjustment of an adjustment element of a vehicle, wherein at least one drive comprising an...
US-9,461,565 Systems, apparatus, and methods for soft starting large AC motors with a variable frequency drive
A system for soft starting a large AC motor may include a variable frequency drive (VFD) having a much lower voltage rating than the rated voltage of the AC...
US-9,461,564 Thermo-mechano-electrical converter
A thermo-mechano-electric converter including a plurality of shape memory bistable elements embedded in a resilient material intimately associated with a...
US-9,461,563 Ultrasonic motor
An ultrasonic motor having an ultrasound actuator in the form of a piezoelectric hollow cylinder with friction elements on at least one of its end surfaces, and...
US-9,461,562 Low voltage detector
An apparatus includes a voltage monitoring device to generate a brownout indication signal in response to a change in a power supply voltage. The apparatus also...
US-9,461,561 Method and apparatus for improved burst mode during power conversion
A method and apparatus for power conversion. In one embodiment, the method comprises operating an inverter in bursts by (i) enabling power production by the...
US-9,461,560 Power conversion device with a plurality of series circuits
A power conversion device is provided which includes a plurality of series circuits each formed of a voltage source and a controlled current source. At least...
US-9,461,559 Active front end power converter with boost mode derating to protect filter inductor
Methods and apparatus are presented for controlling a power converter to protect input filter inductors from overheating, in which an active front end (AFE)...
US-9,461,558 Control device of a switching power supply
A control device of a switching converter controls the closing and opening of a switch of the converter that regulates the operation of an inductor. The control...
US-9,461,557 Bipolar double voltage cell and multilevel converter with such a cell
A multilevel converter cell includes a first section with a first group of series connected switching units in parallel with a first energy storage element,...
US-9,461,556 Stable regenerative bi-directional cell for bridge power inverters
A high efficiency, multi-mode, regenerative AC-DC-AC inverter power system contains an inverter bridge, a bi-phase matrix (BP-Mtx) containing reverse current...
US-9,461,555 HVDC series current source converter
A multilevel current source converter (CSC) for controlling electrical power transmission in a high voltage direct current (HVDC) transmission system includes...
US-9,461,554 Hybrid converter using a resonant stage and a non-isolated stage
A converter comprises a non-isolated stage coupled to an input dc power source, wherein the non-isolated stage is configured to operate at a buck converter mode...
US-9,461,553 High efficiency DC/DC converter and controller
Systems, methods, and devices for use in a DC/DC converter. A circuit uses a full-bridge power semiconductor subcircuit along with a high power transformer...
US-9,461,552 Method and apparatus for power conversion
A method and apparatus for converting a first power to a second power. In one embodiment, the apparatus comprises a power conversion circuit for receiving the...
US-9,461,551 Current sensorless MPPT for PV micro-inverters
Systems, methods, and devices for use with photovoltaic micro-inverters. A control system for controlling power switches in a full bridge inverter in a DC/DC...
US-9,461,550 Method and apparatus for extending zero-voltage switching range in a DC to DC converter
Method and apparatus for extending a zero voltage switching (ZVS) range during power conversion. In one embodiment, the apparatus comprises a DC/DC converter,...
US-9,461,549 Electric power source device
An electric power source device has a transformer, a primary-side semiconductor module, a secondary-side semiconductor module, a secondary-side electrical...
US-9,461,548 Switch control circuit, switch control method and power supply device using the same
Embodiment relates to a switch control circuit, a switch control method, and a power supply using the switch control circuit. The power supply supplies power to...
US-9,461,547 Converter circuitry
Disclosed is a DC-DC converter with a converter bridge, tank circuitry, and rectifier circuitry. In one embodiment, the converter bridge includes multiple...
US-9,461,546 Power device and method for delivering power to electronic devices
An energy efficient apparatus includes a switching device, a frequency dependent reactive device, and a control element is provided. The switching device is...
US-9,461,545 Boost converter with circuit for body switching of the rectification transistor
A first softstart signal indicates operation in a load phase for a boost rectifier and a second softstart signal indicates operation in a pulse drive phase...
US-9,461,544 Enhanced phase control circuit and method for a multiphase power converter
A multiphase power converter has a plurality of phase circuits, each of which provides a phase current when being active. During single-phase operation of the...
US-9,461,543 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...
US-9,461,542 Power supply apparatus
A power supply apparatus includes a power supply section and a control section. The power supply section includes a first switch which performs switching of...
US-9,461,541 Control method for a power supply system
A control method for a power supply system having at least two power parts with power outputs connected in parallel, wherein each power part is actuated via a...
US-9,461,540 Asynchronous switch mode power supply
There is disclosed an asynchronous switch mode power supply comprising: a subtractor for subtracting an output of the switch mode power supply from a reference...
US-9,461,539 Self-calibrated voltage regulator
A voltage regulator includes a driving circuit, a feedback circuit, first and second control circuits and a resistor. The driving circuit is coupled to an input...
US-9,461,538 DC/DC converter
It is presented a DC/DC converter for converting power between a first DC connection comprising a first positive terminal and a first negative terminal, and a...
US-9,461,537 Systems and methods for measuring inductor current in a switching DC-to-DC converter
A switch control circuit may be utilized for a sequence of switching events: a first event to activate a first switch and deactivate a second switch, wherein a...
US-9,461,536 Digital controller with nested loops for switched mode power converter
In one example, a method includes receiving a voltage value and comparing the voltage value to a reference voltage value to determine a delta voltage value. The...
US-9,461,535 Photovoltaic systems with maximum power point tracking controller
A system and a method provide a photovoltaic system which regenerates the output characteristics of the photovoltaic at different ambient condition with high...
US-9,461,534 Wirelessly activated power supply for an electronic device
A power supply includes a power supply circuit and a power-on circuit controlling transitioning of the power supply circuit to a turned-on state. The power-on...
US-9,461,533 Electronic circuit
When an overcurrent is detected by an overcurrent detecting circuit (36), a first switch circuit (32) selects a second input terminal (b) and connects an output...
US-9,461,532 Resistance generating device for drive unit
A resistance generating device for a drive unit of an opening and closing member of a vehicle includes a transmission member transmitting a rotary motion to a...
US-9,461,531 Braking device
A braking device includes a flywheel rotatably mounted on a brace, a circular rotor deposited on the flywheel, and a stator fixed to the brace for combining...
US-9,461,530 Electromechanical generator for converting mechanical vibrational energy into electrical energy
An electromechanical generator for converting mechanical vibrational energy into electrical energy, the electromechanical generator comprising a housing, an...
US-9,461,529 Tactile low frequency transducer
A transducer comprising: a flat strip of metal formed into a closed metal loop with two substantially parallel sides and rounded corners, a solenoid fixed to a...
US-9,461,528 Deformation control device for a resonant spring in a linear driving unit
The present device is applied to a linear driving unit which comprises: a linear electric motor (M) formed by a motor housing (C) which is electrically excited...
US-9,461,527 Multiple conductor winding in stator
An electric machine includes a stator disposed about an axis in register with the rotor. The stator has a plurality of slots parallel to the axis. A plurality...
US-9,461,526 Grounded radial diode pack
The present disclosure relates to generators and their components. Specifically, a grounded radial diode pack is disclosed herein. A design to accommodate safe...
US-9,461,525 Electrical machine for use in the automotive sector
An electrical machine for an automotive vehicle has a housing (4). A stator arrangement (8) and a rotor arrangement (6) are disposed in the housing (4). At...
US-9,461,524 Electric machine
The invention relates to an electric machine supplied with air for cooling purposes. The air is heated during operation of the electric machine and is removed...
US-9,461,523 Two phase gap cooling of an electrical machine
An electro-dynamic machine has a rotor and stator with a gap therebetween. The machine has a frame defining a hollow interior with end cavities on axially...
US-9,461,522 Drive unit and electric power steering device including the drive unit
A drive unit that includes a rotating electric machine having a stator with winding wound on the stator and with a shaft rotating within the stator, and a rotor...
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