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System and method providing reliable over current protection for power
System controller and method for protecting a power converter. The system controller includes a first controller terminal configured to output a drive signal to...
Power conversion apparatus
A power conversion apparatus includes a switch circuit which drives switching elements based on a control signal, a feedback section which performs feedback...
Power converter and air conditioner
Malfunctions of a switching device included in a power factor corrector are reduced when an instantaneous voltage drop or an instantaneous power failure occurs....
Control circuit for an interleaved switching power supply
In one embodiment, a control circuit configured for an interleaved switching power supply having first and second voltage conversion circuits, can include: a...
Switching regulator circuits and methods
A switching regulator circuit can include multiple switching regulator stages coupled to an output. A first switching regulator stage may be operated at a...
Buck-boost converter and control circuit thereof
A buck-boost converter and a control circuit thereof are disclosed. When an input voltage is close to an output voltage (i.e., the buck-boost converter operates...
Boost converter with zero voltage switching
A power converter circuit is disclosed. The circuit includes a capacitor connected across first and second output terminals, an inductor configured to receive...
Energy harvesting circuit and method
An energy harvesting circuit is based on a switch mode inductive DC-DC converter circuit. The inductor current is sensed and a duration of an on-time is...
A power converting circuit includes a converter. The converter receives and converts an input power to provide power for a load. The converter includes a power...
Current metering for transitioning between operating modes in switching
Current metering for transitioning to low power operation in switching regulators is disclosed. In an exemplary embodiment, a method is provided that includes...
Voltage adjusting apparatus with jumper
A voltage adjusting apparatus includes a pulse width modulation (PWM) controller, a switch module, and a feedback module. The PWM controller outputs control...
Adaptive dead time control
A dead time detector detects when a dead time occurs in a switching regulator comprising a high-side switch and a low-side switch and generates an output signal...
Converter device and corresponding method
It is presented a converter device arranged to convert power between a first high voltage direct current, HVDC, connection, a second HVDC connection and an AC...
Dual mode voltage regulator with reconfiguration capability
A dual mode voltage regulator according to one embodiment includes a passive regulator circuit, a switching regulator circuit, and a controller circuit...
Pre-filtering in a power supply control circuit
A hybrid power supply circuit includes a digital circuit, a digital-to-analog converter circuit, and an analog compensator circuit (analog control circuit)....
Average current control for a switched power converter
A circuit for controlling a switch in a power converter in which peak current is regulated to achieve a specified average current through a load. Control logic...
Power converter with bootstrap circuit
A power converter with bootstrap circuit, the power converter has a high side switch, a low side switch, a bootstrap circuit and a bootstrap capacitor for...
Enhanced peak current mode DC-DC power converter
Apparatus and methods are provided for feedback circuitry in a power converter, the feedback circuitry including a first resistor coupled to a first node...
Voltage control method and apparatus for achieving and maintaining a
targeted voltage on a load
The present invention discloses a voltage control method. First, the load voltage of the load is divided to generate a feedback voltage. Then, an absolute value...
Startup clamp circuit for non-complimentary differential pair in DCDC
A DCDC converter includes a transconductance amplifier, a comparator, a current driving component, an output impedance, a switch, a clamp resistor and a...
Apparatus for controlled overshoot in a RF generator
A radio-frequency (RF) generator is provided that produces a controlled overshoot. One embodiment includes a RF power amplifier and a direct-current (DC) power...
Controller for generating jitters in a quasi resonant mode and method for
generating jitters in a quasi...
A controller for generating jitters in a quasi resonant mode includes a feedback pin, a voltage generation unit, a pulse generator, and a comparator. The...
Peak sample circuit for AC voltage and method thereof
A peak sample circuit for AC voltage, including: a rectifier coupled to receive an AC voltage and to rectify the AC voltage to generate a rectified signal; a...
Method for operating a power factor correction circuit
A method for operating a power factor correction circuit is provided which may include the steps of providing a plurality of N switched-mode converter circuits...
Current zero-cross detection device, signal acquisition circuit, and
Disclosed are a current zero-cross detection device, zero-cross current signal acquisition circuit and totem pole bridgeless circuit system. The current...
PFC DC/AC/DC power converter with reduced power loss
A second control circuit is configured to switch a pulse signal to a level which turns off a second switching transistor when a coil current that flows through...
An inverter device includes an inverter circuit, which has switching elements in a bridge connection, a capacitor, which is connected in parallel to the input...
Emulated peak current limit scheme for switching regulator
An apparatus comprises a switching circuit, an error amplifier circuit, a current threshold circuit, and an over-current detection circuit. The switching...
NMOS LDO PSRR improvement using power supply noise cancellation
Power-supply ripple rejection (PSRR) at high frequencies is improved for an LDO voltage regulator with an NMOS pass transistor (MN1). A ripple voltage...
Inverter assembly without galvanic isolation
Disclosed is an inverter assembly without galvanic isolation, the inverter assembly including a PCB mounted with a power supply circuit unit, an inverter unit,...
High-side circuits with modified diode and layout placement thereof
A high-side circuit, adapted for a switched-mode converter, includes a level shifter, a high-side driver, a high-side transistor, a capacitor, and an active...
Bootstrap controller for switching power supply
Systems and methods for operating a switching converter are disclosed. The switching converter includes a high-side transistor coupled between a voltage input...
Cryogen supply and return device for use with cryogen rotating electric
machine and superconducting rotating...
Provided is a cryogen supply and return apparatus and a superconducting rotating electric machine, comprising stationary and rotatable members arranged out of...
Rotating machines using trapped field magnets and related methods
Rotors with trapped-field magnet (TFM) bulks, machines with TFM rotors, and methods of activating and/or using machines with TFM rotors.
Transverse flux permanent magnet rotatory device
A transverse flux motor (10) includes a housing (20), a stator (50), and a rotor (30) external to the stator (50) and installed onto the housing. The stator...
Claw pole rotor with cavity for minimizing flux leakage
A rotor for a rotary electric machine, the rotor including first and second pole pieces each having a respective magnetic hub arranged for rotation about an...
Rotary continuous permanent magnet motor
A rotary magnetic motor having a rotor configured to magnetically interact with a stator to obtain rotation of the rotor about its axis. The stator has a...
Resolver with mounting structure and method
An apparatus including a rotating member, a resolver and a mounting structure. The resolver includes a resolver stator and a resolver rotor fixedly mounted on...
Stator for rotary electric machine and method for manufacturing the stator
Provided is a stator for a rotary electric machine, capable of reducing a space on an end surface of a stator core on an inner diameter side to reduce a size in...
Rotating electric machine having a magnetic sensor that detects a rotation
position of a rotor core
A rotating electric machine has a semiconductor magnetic sensor and a cylindrical housing with a cylinder part, which is made of a soft magnetic material,...
Rotor and brushless motor with rotation position detection
A rotor includes a first rotor core, a second rotor core, a field magnet, and a detected portion. The first rotor core includes a first core base and a...
Rotary electric machine
A rotary electric machine including a brush used to supply a field current to a field winding of a rotor, a brush holder holding the brush, a power circuit...
Elastic cone for sealing and method
A motor includes a casing having a cavity, a stator configured to be attached to an inside of the cavity, an elastic cone configured to be attached to a first...
Motor and electronics cooling system for a high power cordless nailer
A battery powered tool includes a housing containing a motor assembly. A fan positioned in the housing is rotated by the motor assembly. The fan has a circular...
Marine propulsion device and boat
A marine propulsion device, including an engine including a crankshaft, and a power generator including a rotor configured to be rotated by the crankshaft, and...
Starter motor including a removable solenoid tower
An electric machine includes a housing having an outer surface and an inner surface defining an interior zone. A solenoid mounting section is provided on the...
A spindle motor having a turntable is disclosed, the spindle motor including a rotating rotation shaft, a turn table coupled to the rotation shaft to rotate...
Motor with sealed controller housing
An electric motor is provided. The motor is mountable to a machine. The motor includes a rotor rotatable about an axis, a stator, a housing, and a fastener. The...
Drive unit integrated rotating electrical machine
Problem To obtain a drive unit integrated rotating electrical machine that makes it easier to connect power circuits and achieves not only excellent vibration...
Electronic cylinder with waterproof structure
An electronic cylinder includes a knob; a cylinder core connected with the knob; a motor having a protrusion block; a clutch unit; a coupler including a chamber...