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Methods for controlling electrical inverters and electrical inverters and
systems using the same
A system for generating a duty cycle control signal for controlling an inverter power train providing an output current waveform to a grid operating with a grid...
Power adaptor system and method
A power adaptor system and method is provided. The adaptor system includes a system side and a power adaptor. The power adaptor method includes steps of:...
Method of controlling direct power converter
In a first period when a cosine value is positive that is a cosine value of a value twice a phase angle determined while an AC waveform output from a...
Power conversion device
Provided is a power converter 3 that directly converts polyphase AC power to AC power. A converter circuit has a plurality of first switching elements 311, 313...
Power conversion with solid-state transformer
An electric power supply unit includes a primary stage having an electric converter arranged to increase a frequency of AC power provided to an input of the...
System and method for a power converter
According to an embodiment, a power supply controller includes a first controller, a second controller, a transformation circuit, a switch signal generator. The...
Multiple output synchronous power converter
A multiple output power converter constituted of: an inductance element arranged, responsive to a switching circuit to receive power and arranged to output a...
Switching power supply circuit
A switching power supply device includes: a main transformer; a main switch that is connected between a high potential terminal of an input direct current...
Isolated converter with initial rising edge PWM delay
A power converting device includes a transformer, a first switch coupled to a primary winding of the transformer, a PWM controller which generates a first PWM...
Switched-mode power supply device
A transformer comprises a primary winding to which a DC voltage is applied and a secondary winding. A switching circuit is connected to the primary winding. A...
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...
A DC/DC converter 10 of the present invention is provided with a constant-voltage power supply circuit 11; a SENSE+ terminal; a SENSE-/OCPSEL terminal pulled up...
Flyback converter output current evaluation circuit and evaluation method
An output current calculating circuit for a flyback converter operating under CCM and DCM is disclosed. The off current value I.sub.ON and the blanking current...
Gate drive power supply having gate drive voltage supply transformer
circuits and kick starter circuit
A gate drive power supply (GDPS) system includes a voltage boost stage configured to boost an input voltage into a boost voltage and an inverter stage...
Power supply device for supplying power to a load by combining a secondary
battery and a capacitor
A power supply device supplies power to a load by combining a secondary battery and a capacitor connected in parallel to the secondary battery. The power supply...
Hybrid DC-DC converter with LLC converter and full-bridge converter
Disclosed is a hybrid dc-dc converter. The hybrid dc-dc converter includes: a pair of transformers configured to magnetically couple a primary side to a...
Multiple-output DC/DC converter and power supply having the same
Disclosed are a multiple-output DC/DC converter and a power supply having the same. The multiple-output DC/DC converter includes a converter including a...
Control circuit and a method for an energy based pulse skipping mode in a
A control circuit for a switched mode power supply and a related method are provided for controlling switching elements in a power train of a switched mode...
Power supply controller with input voltage compensation for efficiency and
maximum power output
An apparatus includes an ON/OFF controller for regulating an output of a switched mode power supply by selectively enabling current conduction by a power switch...
Inverter device and air conditioner
An inverter device includes: a rectifier circuit that converts an AC power supply into a DC power supply; a smoothing unit that is connected to a subsequent...
System and methods for controlling secondary side switches in resonant
Control methods for resonant converters offer improved performance in resonant converters that operate with a wide input-voltage range or a wide output-voltage...
Power supply with first and second capacitor sections in the transformer
A power supply device includes a substrate, a transformer, a rectifying section, a filtering section, at least one first capacitor section, and a second...
Multi-phase voltage regulator control systems and methods
A voltage regulator includes at least two phases, where each phase includes an inductor connected at one end to a load, a switching device that opens and closes...
Techniques for reducing switching noise and improving transient response
in voltage regulators
Methods and apparatus relating to reducing switching noise and improving transient response in voltage regulators are described. In an embodiment, one or more...
Portable handheld strong authentication token having parallel-serial
battery switching and voltage regulating...
An electronic power supply circuit for battery-powered hardware devices is disclosed which can be electronically switched to supply any of at least two...
Digitally controlled current mode power converter
A current mode converter includes a converter stage comprising a first switch, a second switch, an inductor, and a capacitor, and a digital-to-analog converter...
Low input voltage boost converter with peak inductor current control and
offset compensated zero detection
The low input voltage boost converter with peak inductor current control and offset compensated zero detection provide a boost converter scheme to harvest...
Self-bootstrap driving circuit and DC-DC converter
A self-bootstrap driving circuit includes a first input receiving a first control signal; an output, to which a load having an electro-inductive component may...
Charge pump with switching gate bias
An apparatus including: a current source configured to generate current; a bias node coupled to the current source; a switching current source circuit coupled...
Method and apparatus for eliminating shimmering
Aspects of the disclosure provide a circuit that includes a switch control circuit and a timing control circuit. The switch control circuit is configured to...
Hybrid resonant bridgeless AC-DC power factor correction converter
A power converter (e.g., AC-DC converter) includes an input inductor coupled between a first AC voltage source input node and a central node, a first switch...
Converter for HVDC transmission and reactive power compensation
A power electronic converter for use in high voltage direct current power transmission and reactive power compensation comprises a plurality of switching...
Circuit and method of correcting a power factor for AC direct lighting
A circuit for correcting a power factor for an AC direct lighting apparatus that includes a valley signal generating unit configured to receive a full-wave...
Device and method for surge current protection during the operation of a
capacitive load on a three-phase inverter
A method, device, and system for surge current protection on a circuit including a three-phase inverter and a capacitive load. The inverter can be controlled to...
Filter capacitor degradation identification using computed power
Methods and apparatus are presented for detecting filter capacitor degradation in a power converter in which filter circuit branch currents and voltages are...
Methods and apparatus for controlling power switches via a digital
Methods and apparatus are provided that can be used to control a set of power switches operating as a power converter. The method comprises providing a set of...
Method and circuit arrangement for switching a semiconductor switch
A method is disclosed for switching a semiconductor switch from a first static switch state to a second static switch state by controlling a control connection...
Power transmission apparatus
A rotational difference is generated between a first and a second rotor and a third rotor, which causes an induced current to flow in a first rotor winding....
Linear motor with reduced cogging
Provided is a linear motor capable of preventing an increase in length of the armature in the moving direction and also of reducing cogging. The linear motor...
Axial gap motor using non-rare-earth magnets
The problem is to provide an axial gap motor using non-rare-earth magnets, as an axial gap motor capable of suppressing reduction in magnet torque and...
Permanent magnet electric motor
According to one embodiment, a rotor is configured by a rotor core and magnetic poles. Two or more types of permanent magnets are used such that each product of...
Thermosensitive element and a vehicle starter motor
A motor, and a starter for a vehicle including a motor are described. The motor includes an excitation coil and a thermal element. The excitation coil is...
Method and system for alternator thermal protection
A system (for controlling cooling of an alternator) comprises a control system, an alternator, and a blower fan, the alternator having a stator and a rotor. The...
Pulsed air to electric generator
An electric generator includes a housing with a stator positioned thereabout. A rotor (i.e., magnetic member) is positioned within the housing and is adapted to...
Power generator power generation facility
In a power generation facility, there are provided a plurality of diesel engines, a plurality of turbochargers driven by exhaust gas from the diesel engines, a...
Wheel driving device
A wheel driving device includes a speed reducer for transmitting rotation of an electric motor to a hub ring supporting a vehicle wheel after reducing its...
Generator having variable power generation
A generator having variable power generation in which a plurality of rotors are inserted into one rotating shaft, a central connecting shaft of one rotor is...
A motor is provided, the motor including an insulator body coupled to a stator core wound with a plurality of coils applied with an electric power having...
Fan having an integrated IP protection
A fan has a fan housing (2) which is formed with a pot-shaped recess (4) and it has an external-rotor drive motor (103) having an internal stator (22) and an...
Stator of motor having insulation structure for separation of stator
Disclosed is a stator of an EPS motor, the stator including a stator core including a plurality of teeth protrusively formed toward a center of an inner...