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Patent # Description
US-9,425,733 Support structure for solar modules
The invention relates to a support structure for solar modules, with an arrangement of posts mounted on a base. A carrier unit is pivotably mounted on each...
US-9,425,732 Solar panel rack
A solar panel rack may comprise one or more sheet metal brackets configured to attach solar panels to the solar panel rack. The sheet metal brackets may include...
US-9,425,731 Solar panel rack
A solar panel rack may comprise a vertical support, a transverse support, brackets attaching hollow beams to the transverse support, and brackets configured to...
US-9,425,730 Apparatus for estimating quantity of state relating to motor, and electric tool
The present application discloses an apparatus including: a motor model that reflects a characteristic of a motor and includes at least inputs pertaining to a...
US-9,425,729 Motor control devices and methods
A system and method for preventing thermal damage to an electric motor in a vehicle includes arrangements for monitoring the motor and detecting a cycle of the...
US-9,425,728 Dynamic power control for induction motors
An example electric motor including a conductive winding, a switching device, a rotor, and a controller is disclosed. The switching device is configured to...
US-9,425,727 Charging an energy storage device with a variable speed generator
Some embodiments relate to a power management system. The power management system includes a variable speed generator that provides a voltage output to a bus...
US-9,425,726 Fault-tolerant wind energy conversion system
This disclosure is directed to a fault-tolerant energy conversion system. A fault-tolerant doubly-fed induction generator (DFIG) for use with a wind energy...
US-9,425,725 Position estimation system and method for an electric motor
Systems and methods of estimating a motor position of a motor are disclosed. One exemplary system and method involve observing motor currents of the motor at...
US-9,425,724 Motor abnormality detection apparatus
A MGECU includes a locked state check part for checking whether a motor generator is in a locked state, a current value check part for checking whether a...
US-9,425,723 System comprising an electrically excited machine
A system includes an n-phase separately excited electrical machine, wherein n.gtoreq.1, and a controllable first energy store that has n parallel energy supply...
US-9,425,722 Electric motor control device and electric motor control method
An electric motor control device includes: a motor constant generator configured to generate a motor constant by using a temperature; a current control unit...
US-9,425,721 Systems and methods for adaptive motor speed control
A system including memory to store a plurality of sets of values, where each set is used to control speed of a different type of motor. A pulse width modulation...
US-9,425,720 Electric motor and motor control
Various embodiments of an electric motor and electronic control for an electric motor are disclosed. An exemplary electric motor comprises a single-phase...
US-9,425,719 Transmission of energy
Apparatus for transmitting energy comprising an electrical machine arranged to convert between electrical and mechanical energy, and comprising a rotor (20) and...
US-9,425,718 Vibration device and information processing apparatus
A disclosed vibration device includes a first vibrating motor that causes a first eccentric spindle to be rotated so that an angular velocity changes regularly...
US-9,425,717 Device and method for supplying an electric drive with electric current
The present invention relates to a device (100) and a method for supplying an electric drive (101) with electric current. For this purpose, three DC/DC...
US-9,425,716 Method for examining an electric energy accumulator
A method for checking an electric energy storage device for a blade angle adjustment drive of a wind turbine. The method includes blocking an electric motor,...
US-9,425,715 Motor driving circuit of EPB system for reducing dark current
Disclosed is a motor driving circuit of an EPB system which may reduce dark current. The present invention provides a motor driving circuit, including: a motor...
US-9,425,714 Single phase motor energy economizer for regulating the use of electricity
A system for controlling power from an AC voltage to an induction motor to reduce surge when power is restored to a power grid is disclosed including, a device...
US-9,425,713 Method and device for starting motors in weak grids
Method and device for starting a motor (12) in weak grids, especially asynchronous motors, which motor after start-up is supplied by a supply grid (13). The...
US-9,425,712 Vibration power-generating strain wave gearing
The strain wave gearing includes a rigid internally toothed gear, a flexible externally toothed gear that is disposed coaxially therein and is flexible in the...
US-9,425,711 Integral preload mechanism for piezoelectric actuator
A piezoelectric actuator that may include a monolithic frame having an integral bias band that provides a resilient restoring force between a first contact...
US-9,425,710 Electrostatic induction conversion device and DC-DC converter
An electrostatic induction conversion device includes: an input-side electrostatic actuator that includes a first fixed electrode and a first movable electrode...
US-9,425,709 Vibration driven power generation element and method of manufacture thereof
A vibration driven power generation element according to the present invention includes: a three dimensionally shaped movable comb tooth electrode comprising a...
US-9,425,708 Apparatus and methods for individual addressing and noise reduction in actuator arrays
Apparatus for generating a target physical effect, at least one attribute of which corresponds to at least one characteristic of a digital input signal sampled...
US-9,425,707 Inverter device capable of appropriately fixing a power module having a switching element and a smoothing...
A compact inverter device that includes a power module having a switching element and a smoothing capacitor that converts electric power between DC power and AC...
US-9,425,706 Control of a DC-AC inverter with unbalanced loading
A three phase inverter consisting of three single phase legs using either switch mode or linear control is fed by a DC-DC converter to provide input output...
US-9,425,705 Method and apparatus for bypassing cascaded H-bridge (CHB) power cells and power sub cell for multilevel inverter
Multilevel power converters, power cells and methods are presented for selectively bypassing a power stage of a multilevel inverter circuit, in which a single...
US-9,425,704 Power inverter with multi-fed on-board power supply for supplying a controller
An inverter includes a DC/AC converter connectable to a DC power grid, at least one DC/DC converter arranged upstream of the DC/AC converter and providing a...
US-9,425,703 AC/DC converter circuit for common three-phase AC input voltages and method of operating such converter circuit
The invention relates to an AC/DC converter circuit (100) and a method for converting N.gtoreq.2 AC supply voltages (U1, U2, U3) into DC voltage. This is...
US-9,425,702 System and method for safe switching in an AC-to-AC converter
A system and method for controlling switching in an AC-AC converter is disclosed. A controller for the AC-AC converter determines a direction of current flow on...
US-9,425,701 Power conversion device
There is disclosed a power conversion apparatus 3 for converting polyphase ac power directly to ac power. A conversion circuit includes a plurality of first...
US-9,425,700 System and method for series resonant converter protection
A resonant power supply is disclosed. The resonant power supply includes a series resonant configured to convert an input DC voltage to an output DC voltage....
US-9,425,699 Multi-output power supply apparatus enhancing a power imbalance between multiple outputs
There is provided a multi-output power supply apparatus capable of maintaining multiple output voltages in a balanced state by limiting a variable range of a...
US-9,425,698 Power conversion apparatus and method
A power conversion apparatus includes: a primary side full bridge circuit having a first arm circuit and a second arm circuit in parallel, a secondary side full...
US-9,425,697 Power supply and method for compensating low-frequency output voltage ripple thereof
A power supply has a power factor correction (PFC) circuit and a DC to DC conversion circuit. A DC to DC controller of the DC to DC conversion circuit acquires...
US-9,425,696 Rectifying circuit and method for an unbalanced two phase DC grid
The present invention relates to a rectifying method and circuit using a magnetically coupled double flyback converter. The main circuit can consist of only one...
US-9,425,695 DC-DC converter
There is provided a device in which superimposition of noise radiated from a circuit is reduced, and a noise reducing effect of a filter is ensured. A DC-DC...
US-9,425,694 Current resonance type DC-DC converter and method for operating current resonance type DC-DC converter
A current resonance type DC-DC converter includes a transformer that has a primary winding and a secondary winding, a switching circuit that has a pair of first...
US-9,425,693 Systems and methods for high power DC/DC conversion using voltage converter cells
A voltage conversion system and methods are disclosed. Voltage converter cells are controlled using interleaved phase-shift modulation signals, and convert an...
US-9,425,692 DC to DC converter and method to transition the DC to DC converter from a buck mode to a boost mode
A DC to DC converter including a buck converter, a boost converter, and a control unit, wherein the control unit is arranged to calculate an error voltage of...
US-9,425,691 Low thermal design for DC-DC converter
A DC-DC converter includes an input terminal Pin receiving an voltage input, switching circuits connected in parallel between the input terminal Pin and ground,...
US-9,425,690 Current controlling mode direct current (DC)-DC converter
There is provided a current controlling mode DC-DC converter that operates in a PWM mode or a PFM mode by adjusting a turned-on time of a gate depending on...
US-9,425,689 Load regulation compensation module and switching converter comprising the same
A switching converter and a load regulation compensation module for improving load regulation accuracy of the switching converter. The switching converter...
US-9,425,688 Converter circuit and associated method
A converter control circuit for converting an input voltage to an output voltage comprises: an error amplifier, coupled to an output voltage or a feedback...
US-9,425,687 Methods of operating switched mode power supply circuits using adaptive filtering and related controller circuits
A method of operating a switched mode power supply circuit can be provided by determining an error in a control signal for the switched mode power supply...
US-9,425,686 Voltage conversion device and method for adjusting common mode noise impedance
The present invention provides a voltage conversion device and a method for adjusting common mode noise impedance, which relates to the circuit field, and...
US-9,425,685 DC-DC voltage converter and conversion method
A DC-DC converter uses a switched capacitor arrangement. A filter capacitor is connected between one terminal of the capacitor arrangement and a fixed voltage...
US-9,425,684 Reduced noise power converter using novel shield
Power converters that produce less noise are disclosed. For example, in an embodiment, power converter can include a first inductor magnetically coupled to a...
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