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An alternating current to direct current (AC-DC) converter is provided. The converter includes a rectifying unit configured to rectify an AC voltage that is...
Semiconductor device, switching system, and matrix converter
A semiconductor device includes a semiconductor switch, a first rectifier circuit, and a second rectifier circuit. The semiconductor switch, the first rectifier...
Input/output power and signal transfer isolator device
Input/output power and signal transfer and power and signal isolator device using pulsed, alternating or high frequency signal current having a capacitive...
Insulation-type synchronous DC/DC converter
A synchronous rectifier controller is provided on a secondary side of an insulation-type synchronous DC/DC converter and controls the synchronous rectifier...
Reverse current control for an isolated power supply having synchronous
In certain example embodiments, a system is provided that includes a circuit. The system also includes a reverse current control module that provides an...
Power conversion device and power conversion method
A power conversion method of a power conversion device including a plurality of primary side ports disposed in a primary side circuit and a plurality of...
Power conversion apparatus and power conversion method with phase control
A power conversion apparatus includes a primary side circuit and a secondary side circuit magnetically coupled to the primary side circuit via a transformer,...
Power supply circuit
A power supply circuit includes a plurality of output terminals that output voltages (voltages may have the same or different voltage values among the output...
Push-pull LED driver circuit
Push-pull circuits are described that are suitable for the driving of LEDs and that reduce the voltage stress on the switching transistors that is caused by the...
Phase angle detection module for power converter
A power converter controller asserts a leading edge signal when a leading edge of a voltage signal is detected. The voltage sense signal is representative of an...
Power converter for reducing standby power consumption
A power converter according to examples reduces standby power consumption. The power converter includes a rectifier configured to rectify AC power into DC...
Systems and methods for fast kilovolt switching in an X-ray system
A system includes a two-channel inverter for receiving a non-zero variable input voltage, first and second input channels each electrically coupled to the...
Switching power supply having loading condition remembrance and improved
hold-up time characteristics
A switching power supply comprises one or more power supply stages that receive power from an input power source and that generate a regulated output voltage...
Efficient boost-buck converter and control method thereof
In one embodiment, a boost-buck converter can include: (i) first and second switches coupled in series between input and an output of the boost-buck converter;...
Current balancing in a multi-phase power supply
According to example configurations herein, a controller is operated in a control mode (such as a high-speed control mode) in which the controller controls...
Control unit for a boost converter device
A boost converter device includes a converter, a current sensor which detects a reactor current flowing through a reactor, and a control unit which controls the...
Power supply system
A power source system (5) includes a direct current power source (10), a direct current power source (20), and a power converter (50) having a plurality of...
Methods and systems for energy recycling
Methods and systems for energy recycling are described. One example energy recycler includes an input to receive an input voltage, an output to couple to an...
DC-DC convertor for batteries having multiple positive terminals
A battery module including a first positive terminal, a second positive terminal, a ground terminal, a power conversion circuit, and a power assembly. The power...
Power converter including integrated driver for depletion mode group III-V
In one implementation, a power converter includes an output stage integrated circuit (IC) on a group III-V die, and a driver IC for driving the output stage IC,...
Circuit and method for reducing inductor magnetic-core loss
A circuit for reducing inductor magnetic-core loss is disclosed. The circuit includes a switch transistor, a PWM signal source connecting to the switch...
Systems and methods for feed-forward control of load current in DC to DC
A system for controlling load current in a voltage converter includes a current normalization module that receives a first measurement corresponding to the load...
Bi-directional voltage positioning circuit, voltage converter and power
supply device including the same
A bi-directional voltage positioning circuit includes a voltage to current converter, a current mirror circuit and a switch. The voltage to current converter...
Bias voltage generating circuit and switching power supply thereof
Disclosed herein are bias voltage generating circuits configured for switching power supplies, and associated control methods. In one embodiment, a bias voltage...
Control device, control method, and power supply device
A control device includes: a power supply circuit that controls output voltage using a switching element; a generation unit that generates a reference signal on...
Hysteretic current mode controller for a bidirectional converter with
lossless inductor current sensing
A system and circuit for achieving bidirectional hysteretic current mode control of a converter. The system comprises a summer that provides a constant...
Silicon-on-insulator-based voltage generation circuit
A silicon-on-insulator (SOI) based positive/negative voltage generation circuit includes: an inverter including an NMOS transistor and a PMOS transistor, a...
Fast startup charge pump
A charge pump is designed to be capable of quick start up. When the enable signal of the charge pump is arrived, the pump capacitor and the load capacitor of...
Low voltage and high driving charge pump
The present disclosure relates to a charge pump circuit having one or more voltage multiplier circuits that enable generation of an output signal having a...
Phase locked loop having dual bandwidth and method of operating the same
A phase locked loop having a dual bandwidth is disclosed. The phase locked loop divides a loop filter into a zero filter and a pole filter, disposes the zero...
High speed switching solid state relay circuit
The invention discloses a high speed switching solid state relay circuit with a switching section, a current limiting section and a voltage limiting section....
Non-transformer isolated DC-DC power supply including shut down circuit
A direct current-to-direct current (DC-DC) power supply includes a voltage converter module that converts an input voltage having a first voltage level into an...
Harmonic displacement reduction
Reducing voltage excursions in a circuit comprises: performing resonant commutation, including transferring, via a first set of one or more diodes, energy...
Apparatus and method for controlling module switching of power converting
A technology is disclosed for controlling switching of power converters included in a power converting system. Phase angles are allocated to a plurality of...
Method for controlling the current intensity of the electric current
flowing through an inductive consumer and...
A method is provided for controlling the current intensity of the electric current flowing through an inductive consumer, the consumer being connected in series...
Electric motor and magnetic gear
An electric motor that can be used in driving a compressor and that incorporates a magnetic gear. The motor has high and low speed stators mounted within a...
A transmission device includes an input shaft, a first transmission mechanism, a speed changing mechanism, and an output shaft. The first transmission mechanism...
Connecting system for connection of an electric machine to a converter
The arrangement of an electric machine, a connecting system and a converter, includes the connecting system connected between the electric machine and the...
Voice coil motor
A voice coil motor (VCM) is disclosed, the VCM including: a rotor including a bobbin accommodated by a lens, and a coil block arranged at a periphery of the...
Electric disk rotor motor and electric bicycle or pedelec comprising a
disk rotor motor
An electric disk-armature motor includes at least one stator in the form of a disk, at least one rotor in the form of an armature disk which is mounted...
Permanent magnet machine with two stators
A permanent magnet machine includes two stationary stators and a rotating rotor. Electromagnetic fields occurring in one stator are displaced by an angle of...
Method of assembling a rotary electric machine
A motor includes a driving shaft, a rotor attached to the driving shaft, and a stator having a substantially cylindrical stator core provided around the rotor,...
Systems and methods for preventing rotation of rotor bearings in a stator
Systems and methods for preventing rotation of rotor bearings in electric motors which enable retrofitting of conventionally designed bearings to use...
Rotating electrical machine unit with a power inverter having a
A rotating electrical machine unit includes a rotating electrical machine including a ring-shaped stator and a rotator provided inside of the stator, and a...
Energy reclamation from air-moving systems
A data center includes a computing room, computing devices in the computing room, an air handling system, and a turbine system. Air moved by the air handling...
Electric push bar assembly
An electric push bar assembly includes an electric push bar including a retractable tube and a connector, and a release mechanism including a connection socket...
Electromechanical converter system for an electric vehicle with enhanced
The invention relates to a converter system (1, 1', 1'') for an electric vehicle and in particular a lightweight electric vehicle. The converter system (1, 1',...
Explosion-proof braking device with non-magnetic shaft for an
explosion-proof electric motor
An explosion-proof braking device is described, which is configured to be connected to the front flange of an explosion-proof electric motor, the braking device...
Motor having a braking function and used in linear actuator
A motor, which has a braking function and is used in a linear actuator includes a main body, a rotation shaft, a braking means and a stopping means. The...
Rotary electric machine
A rotary electric machine includes a coil portion of the stator coil that protrudes from an end of a stator core, a terminal module that is provided on a top of...