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Power converter, and inverter device including the power converter
In a power converter, in a period in which the polarities of output voltage and output current of a power converter differ, a pulse train voltage corresponding...
Power conversion apparatus that provides a release path for inductive
energy accumulated in an inductive load
A power conversion apparatus includes first, second, third, and fourth switching elements. In a first period, the second and third switching elements are...
Dual link power converter
Methods and systems for transforming electric power between two or more portals using multiple power modules. Any or all portals can be DC, single phase AC, or...
Full-bridge switching DC/DC converters and controllers thereof
A controller for a DC/DC converter controls a first, second, third, and fourth switches according to pulse signals generated alternately. The controller turns...
Voltage feed-forward compensation and voltage feedback compensation for
switched mode power supplies
A digital control unit generates a control signal to control a duty cycle of a switched mode power supply such that a faster response to an input voltage...
Switching mode power supplies with primary side regulation and associated
methods of control
A switching mode power supply (SMPS) includes a transformer having a primary winding, a secondary winding for providing an output voltage and an auxiliary...
A control circuit is adapted for controlling a converter. The converter includes a transformer and a power switch. The control circuit includes a current...
Switching power supply device
In a switching power supply device, a voltage of a counter electromotive force induced in a drive winding as a high side switching element is turned off is...
Control device for a DC-DC converter
A control device controls a switching circuit of a DC-DC converter. The switching circuit includes a half-bridge with at least first and second switches...
Integrated circuit for controlling a switch of a current path with leading
edge blanking device of the current...
An integrated control circuit of a switch is described, which is adapted to open or close a current path; said integrated circuit includes a comparator to...
Control apparatus for DC-DC converter
An apparatus controls a DC-DC converter that converts an input voltage to an output voltage. The DC-DC converter includes a switching element having a duty...
Controlled delivery of a charging current to a boost capacitor of a
Disclosed are devices, apparatus, circuitry, components, mechanisms, modules, units, systems, and processes for controlling a power switch of a voltage...
Systems for controlling high frequency voltage mode switching regulators
A circuit for controlling a switching regulator is provided. The circuit includes a first input to receive a feedback signal from the switching regulator...
Current control circuit with in parallel transistor modules
Consistent with an example embodiment, there is a current control circuit for controlling current flow between a first terminal and second terminal. The current...
Semiconductor integrated circuit device and power supply system
A semiconductor integrated circuit device includes a first voltage terminal, a second voltage terminal, an output terminal, a high-side MOSFET connected between...
Shunt integrated voltage regulator
A method and apparatus for augmenting an external voltage regulator with a shunt integrated voltage regulator is disclosed. In one embodiment, an integrated...
Master-slave digital voltage regulators
Described is an apparatus which comprises: a first bridge to be coupled to a first load; a first Pulse Width Modulation (PWM) circuit to drive the first bridge;...
Phase offset compensation for multiphase DC-DC converter
The present document relates to multiphase DC-DC power converters. In particular, the present document relates to the compensation of the phase offset incurred...
DC-DC switching regulator with transconductance boosting
A switching regulator comprising a droop amplifier responsive to a reference voltage and a feedback voltage to generate a droop voltage. The droop amplifier...
A driver circuit includes normally-on first and second transistors, a first control circuit for controlling the first transistor in response to a first control...
Negative reference voltage generating circuit and system thereof
A negative reference voltage generating circuit generating a negative reference voltage is provided, including a differential amplifier, a first diode, second...
Frequency dependent analog boost converter for low voltage applications
An analog open-loop self-oscillating boost converter is provided including: an output terminal for supplying an output voltage bus; an input terminal for...
Controller for a power supply with transition region regulation
A method for regulating a flow of energy from an input to an output of a power converter includes receiving a first signal representative of an output voltage,...
Switching regulator current mode feedback circuits and methods
The present disclosure includes circuits and methods for controlling the operation of a switching regulator. In one embodiment, the present disclosure includes...
Self-biased charge pump
An apparatus including: a current source configured to generate current; a switching current source circuit coupled to the current source and a first bias node...
Charge pump with wide operating range
A charge pump at least includes a current source, a first switch, a second switch, a level-shift circuit, and a capacitor. The first switch is coupled between...
Power supply apparatus with auxiliary boost circuit
A power supply apparatus includes a rectification circuit, a power factor correction circuit, an auxiliary boost circuit and a direct current to direct current...
AC-DC power conversion circuit with current harmonic suppression
A controller outputs a pulse signal to a first switch and a second switch on the basis of a circuit current flowing through a power conversion circuit and a...
Motor drive device having function of estimating dead time in output stage
A motor drive device includes an inverter for generating an AC voltage from a DC voltage by switching power elements, a current detection unit for detecting a...
Switching mode power supply, apparatus and method of supplying power by
using the same, and image forming...
A switching mode power supply (SMPS) usable with an image forming apparatus receives an alternating current (AC) power from an external electric power supply...
Snubber circuit to increase efficiency of power converters
A system including a converter and a snubber circuit. The converter converts an alternating current voltage into a direct current voltage and outputs the direct...
Device for protecting against an electrical overcurrent in at least one
electronic switching branch, conversion...
This device protects at least one electronic switching branch of an electrical conversion system against an overcurrent, each branch comprising two switching...
Systems and methods for over-temperature protection and over-voltage
protection for power conversion systems
Systems and methods are provided for protecting a power conversion system. A system controller includes a first controller terminal and a second controller...
Power conversion system for controlling harmonics
A power conversion system for controlling harmonics, which uses the Fourier transform analysis to calculate the harmonics element of each current, and adds the...
DC-DC converter systems
DC-DC converter systems are disclosed. DC-DC converter systems may include an input, an output, a resonant switched-capacitor DC-DC converter, and a second...
Non-sliding carrier bearing in submersible pump motor and method of
A submersible well pump motor has features to prevent the carrier bearing from sliding axially along the stator due to thermal growth of the rotor. The rotor...
Field rotor with cooling passages for superconducting electric machine
A field rotor of a superconducting rotary machine, includes a rotary shaft, a plurality of coil boxes, and a plurality of superconducting coils. The coil boxes...
Electric damper for a motor vehicle
An electric damper for a motor vehicle for damping a relative movement between two components includes an electric generator for generating an induction...
Electromagnetic pump compensation power supply apparatus and
electromagnetic pump system
Provided, in parallel to an electromagnetic pump in a power supply system, is an electromagnetic pump compensation power supply mechanism (10) that will perform...
An electromagnetic machine, comprising: a first stator winding having a first number of pole pairs; a second stator winding having a second number of pole pairs...
Stator manufacturing method used for automotive rotary electric machine
The stator winding has winding assemblies that are disposed in a stator core so as to be stacked in three or more layers in a radial direction such that...
Stator for electric rotating machine and method of manufacturing the same
A stator includes a hollow cylindrical stator core comprised of a plurality of stator core segments, a stator coil mounted on the stator core, and an outer...
Electric machine and method for manufacturing it
A method for making a rotary electric machine comprises the steps of: preparing a core (18) having a plurality of pole expansions and a plurality of windings...
Method for fabricating a rotor for an induction motor
A method for fabricating a rotor assembly includes assembling shorting end rings onto conductor bars through a steel laminate stack. The ends of the steel...
A linear motor with enhanced cooling performance, including: a stator including multiple magnetic force generating members provided in a row; a moving element...
Cooling assembly for electric machines
A cooling assembly for the stator of an electric machine provided with coils including heads is described herein. The cooling assembly includes a generally...
Rotating electrical machine for vehicles with liquid cooling
An embodiment of a rotating electrical machine has: a shaft rotatably mounted to rotate around a central rotation axis; a rotor carried by the shaft; a stator...
Brushless motor and electric-powered tool
In a brushless motor, a rotor core is fixed to a shaft. Through holes are formed in the rotor core, and permanent magnets are inserted to be fixed in place in...
Device for damping vibrations with an energy recovery capability, and
vehicle with such a device
A device for damping vibrations with an energy recovery capability includes an input shaft rotatable about the input shaft longitudinal axis with an alternating...
Speed reduction mechanism, and motor torque transmission device including
the speed reduction mechanism
In a reduction-transmission mechanism, an input member is arranged at such a position that a size obtained by adding a fitting clearance formed between a ball...