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PHOTOVOLTAIC MOUNTING SYSTEM
Photovoltaic mounting systems and coupling assemblies for mounting photovoltaic modules are provided. The mounting systems may include short extruded base...
SOLAR PANEL MOUNTING APPARATUS WITH ENHANCED STRENGTH
A solar panel mounting apparatus for use in securing a frame with a solar panel stored therein to a roof of a building includes a non-hollow member with a...
PREDICTING MOTOR FAILURE BASED ON RELATIONSHIP OF MOTOR PAIR
A system and method of predicting motor failure based on relationships of motor pair characteristics, such as temperatures. One method includes receiving, by a...
METHOD AND SYSTEM FOR USE IN DYNAMOMETER TESTING OF A MOTOR VEHICLE
The present invention relates to a method for use in dynamometer testing of a vehicle (100), the vehicle (100) including at least a first wheel shaft and at...
MOTOR CONTROLLER AND ELECTRIC POWER STEERING DEVICE
A motor controller includes an H-bridge circuit, a switching-element driving circuit, a motor-current detection circuit, a sample hold circuit executing a...
ELECTRIC MOTOR COMPRISING A DEVICE FOR GENERATING A SEQUENCE OF SIGNALS
The invention relates to an electric motor (1), in particular a fan motor, comprising a device (5) for generating a sequence (3) of signals that comprises a...
Power-Module Assembly and Method
A power inverter includes a plurality of power modules that each have a frame defining a cavity, and a power stage disposed within the cavity. Each of the...
Power-Module Assembly for a Vehicle
A power-module assembly includes a plurality of power modules that each have a power stage with opposing major sides and minor sides surrounded by a frame. The...
SYSTEM AND METHOD FOR TIMED INSERTION OF A PHASE SHIFT CAPACITOR UPON
POWERING A SPLIT CAPACITOR ELECTRICAL MOTOR
A power circuit is configured with mostly passive electrical components to connect a phase shift capacitor to a phase shift winding of a PSC motor selectively....
MOTOR CONTROL DEVICE AND ELECTRIC POWER STEERING SYSTEM
In a motor control device that can perform more appropriate motor control, a switching arm has a first upper FET, a second upper FET, and a lower FET connected...
SYSTEM AND METHOD FOR REDUCING SPEED RIPPLE OF DRIVE MOTOR OF ELECTRIC
A system and method for reducing drive motor speed ripple of an electric vehicle are provided. The system includes an inverter that converts DC power supplied...
HOUSEHOLD APPLIANCE WITH MULTIPLE SYNCHRONOUS MOTORS AND CONTROL CIRCUIT
The present invention relates to an electrical household appliance comprising at least one synchronous electric motor (11, 12), a driver circuit capable of...
CONTROL APPARATUS FOR MOTOR CONTROL SYSTEM
A control apparatus calculates a total loss change amount that is a power loss change amount of a motor control system including respective power loss change...
MULTILEVEL DRIVE HALF DC BUS POWER SUPPLIES
A regenerative drive (30) and method for providing power from such to at least one auxiliary power supply (41, 43) is disclosed. The drive may include a...
PLUG AND PLAY UNIVERSAL INPUT ACTUATOR
An actuator in a HVAC system includes a motor and a drive device driven by the motor. The drive device is coupled to a movable HVAC component for driving the...
CIRCUIT AND METHOD FOR REDUCING INRUSH CURRENT OF PHASE CONVERTER MOTOR
A method and circuit for starting a three-phase motor in a manner that reduces inrush current normally associated with starting an AC motor. The method uses...
STRAIN GAUGE PUMP CONTROL SWITCH
A control switch incorporates a solid state transducer, a strain gauge. The transducer responds to a local environmental condition, such as fluid level, or...
MECHANICAL RESONATOR WITH A SPRING-MASS SYSTEM COMPRISING A PHASE-CHANGE
A mechanical resonator includes a spring-mass system, wherein the spring-mass system comprises a phase-change material. The mechanical resonator typically...
PIEZOELECTRIC POWER GENERATION MODULE AND REMOTE CONTROLLER
A piezoelectric device is connected in parallel with a diode, and outputs a power generation voltage when depressed. When the power generation voltage exceeds...
HARVESTING MECHANICAL AND THERMAL ENERGY BY COMBINING NANOWIRES AND PHASE
A system is disclosed for harvesting at least one of mechanical or thermal energy. The system may have a flexible substrate, a plurality of electrically...
VIBRATION ACTUATOR, AND LENS BARREL AND CAMERA PROVIDED WITH SAME
A vibration actuator that is easy to manufacture and has good driving performance, and a lens-barrel and a camera provided with the same. The vibration...
VOLTAGE SOURCE CONVERTER
A voltage source converter including a DC terminal for connection to a DC electrical network, and a converter limb operatively connected to the DC terminal....
APPARATUS FOR CONTROLLING GRID-CONNECTED INVERTER
An apparatus for controlling a grid-connected inverter is disclosed. The apparatus according to an exemplary embodiment of the present disclosure is configured...
INVERTER CONTROL APPARATUS
There is provided an inverter control apparatus, a capacitor being provided on an AC side of the inverter. The apparatus includes a system voltage detector...
METHOD FOR ACTUATING INVERTERS CONNECTED IN PARALLEL
The invention relates to a method for actuating inverter stages (2) switched in parallel, wherein each inverter stage (2) comprises several switching elements...
DRIVING MODULE AND DRIVING METHOD
A driving module comprising a transformer and at least one driver. The transformer comprises: a primary side, comprising a first input terminal, a second input...
POWER CONVERSION DEVICE
A power conversion device converts three-phase AC power into DC power by two-arm PWM modulation control and includes a main circuit that is constituted by a...
OFFSET VOLTAGE GENERATOR AND METHOD FOR GENERATING AN OFFSET VOLTAGE OF
In one embodiment, an offset voltage generator includes a first limiter configured to compare a first phase-voltage signal with a maximum limit value and a...
CONTROLLER FOR POWER CONVERTER
The present disclosure provides a controller for a power converter that converts input power to a prescribed form and outputs the power by switching a...
POWER CONVERSION DEVICE
Phase arms each having one or more converter cells connected in series are provided between AC terminals U, V, W and DC terminals P and N. At least one of the...
In an inverter circuit, more particularly in a single-phase inverter, soft switching is performed with a simple configuration to prevent switching loss of a...
Power Module, Power Converter Device, and Electrically Powered Vehicle
A power converter device includes a double-sided electrode module that converts direct current power to alternating current power, a heat dissipating base, a...
INVERTER DRIVE SYSTEM, BUS BAR AND ASSEMBLY
An inverter drive assembly includes a first array of inverters, a second array of inverters spaced from the first array of inverters and defining a plenum...
A power converter converts input power into DC power. A first switching element is connected between an output node and a high voltage node of the power...
A CONTROL APPARATUS FOR A POWER CONVERTER
A control apparatus configured to control a chain link voltage source converter, the control apparatus comprising; two converter controllers, each converter...
A power supply apparatus is provided, that supplies a bus voltage V.sub.BUS to a detachable device. A DC/DC converter generates a DC voltage V.sub.OUT used as...
INPUT VOLTAGE SENSOR RESPONSIVE TO LOAD CONDITIONS
An ac-dc power converter controller includes a switch driver circuit coupled to generate a drive signal to control switching of a power switch to control a...
VOLTAGE CONVERSION DEVICE
A voltage conversion device includes a voltage conversion unit and a control unit. The voltage conversion unit includes an input rectifier circuit, a storage...
AC-TO-DC POWER CONVERTER AND CONTROL METHOD AND CONTROL INTEGRATED CIRCUIT
An AC-to-DC power converter with a BJT as a power switch can set a base current of the BJT by a current setting resistor which is in the outside of a control...
SWITCHING POWER SUPPLY
A bypass switch is connected in parallel to an inductor of a power supply circuit for a control circuit connected to an auxiliary coil, and an output voltage...
CONTROL CIRCUIT, CONTROL METHOD AND FLYBACK CONVERTER OF PRIMARY-SIDE
FEEDBACK CONTROL THEREOF
The disclosure relates to a control circuit, a control method and a flyback converter of primary-side feedback control including the control circuit. On the...
VOLTAGE REGULATOR, SEMICONDUCTOR DEVICE, AND VOLTAGE GENERATION METHOD FOR
A voltage regulator includes: a drive voltage generating part for generating a drive voltage and then apply the drive voltage to a drive line; an output...
RECONFIGURABLE SWITCHED MODE CONVERTER
A switching power stage for producing an output voltage to a load may include a configurable switched mode power converter and a controller. The power...
SWITCHING UNIT AND POWER SUPPLY CIRCUIT
A switching unit of an embodiment includes a first switching element of normally-on type, a second switching element of normally-off type having a...
ASYMMETRIC SWITCHING CAPACITOR REGULATOR
The present disclosure provides an asymmetric switching capacitor regulator that is capable of providing an output voltage, covering a wide voltage range, with...
VOLTAGE LEVEL SHIFTER
A level shifter in a primary voltage domain has a control module receiving an input signal from a secondary voltage domain for controlling operation of the...
Zero Current Detecting Circuit and Method and Related Synchronous
Switching Power Converter
A zero current detecting circuit is disclosed. The zero current detecting circuit includes a first zero current comparator for determining current variation on...
ASYMMETRIC POWER FLOW CONTROLLER FOR A POWER CONVERTER AND METHOD OF
OPERATING THE SAME
A controller for a power converter formed with a plurality of converter stages, and method of operating the same. In one embodiment, the controller includes a...
SYNCHRONOUS BUCK REGULATOR WITH SHORT CIRCUIT TO VOLTAGE SOURCE PROTECTION
A method and apparatus for a power converter assembly detects an over-current, latches off a low-side switch if an over-current is detected, holds the low-side...
DISCRETE NARROW-BAND SWITCHING FREQUENCY AVOIDANCE OF A SWITCH MODE POWER
The switching frequency of a switch mode PFM power converter is compared with a predetermined frequency range that contains the operating frequency of a nearby...