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Patent # Description
US-9,444,377 Motor drive control device
A motor drive control device uses a rotor position sensorless control scheme to drive a motor. The motor drive control device includes a rotational speed...
US-9,444,376 Variable link sensorless brushless direct current motor controller for space and hardened applications
A sensorless motor controller includes a variable link control, including a radiation-hardened field programmable gate array (FPGA) and a back electromotive...
US-9,444,375 Control system for a synchronous machine and method for operating a synchronous machine
The invention relates to a method for operating a synchronous machine, comprising the following steps: determining a difference value between the rotor...
US-9,444,374 Converter for an electrical machine and method for controlling a power circuit breaker
The present invention specifies a converter for an electrical machine. A power circuit breaker (T1) comprises at least two semiconductor elements (9, 10)...
US-9,444,373 Motor control device having protective unit of charging resistor
A motor control device includes a rectifier, a smoothing capacitor provided to a DC link, an inverter that power-converts DC power of the DC link and AC power...
US-9,444,372 Vortex resonance wind turbine
Wind turbine consisting of an anchoring to the ground or to a base and a mast, the natural oscillation frequency of which is purposely adjusted to the frequency...
US-9,444,371 Device for recovering and converting heat energy into electrical energy
A device for converting heat energy into electrical energy including cells, the cells including: a first cavity with one wall for contacting a heat source; a...
US-9,444,370 Electronic device
To reduce attenuation of vibration in provision of a tactile sensation when both of a piezoelectric element for providing a tactile sensation and a...
US-9,444,369 Power conversion apparatus and electric power steering apparatus having the same
A power conversion apparatus includes: an inverter unit having high and low potential-side switching elements corresponding to each phase of a winding of a...
US-9,444,368 Method for controlling a power bridge, and corresponding control device, power bridge and rotary electric...
A method performed in a power bridge (3) comprising multiple arms (B1, B2, Bi, Bn). Each arm comprises upper and lower semiconductor switches arranged in series...
US-9,444,367 Method and apparatus for generating single-phase power from a three-phase resonant power converter
A method and apparatus for providing AC power. In one embodiment, the apparatus comprises a cycloconverter controller for determining a DC value based on a...
US-9,444,366 Dual mode micro-inverter system and operation
A dual mode direct current-to-alternating current (DC-AC) micro-inverter is capable of operating either with or without connection to an active external AC...
US-9,444,365 Tracking method and tracking device for a voltage converter for a photovoltaic system
The disclosure relates to a tracking method for a voltage transformer, in particular an inverter, of a photovoltaic system. In the method, an intermediate...
US-9,444,364 Adaptive peak power control
A switching power converter includes a controller configured to transition from a first operating mode to a second operating mode by determining the operating...
US-9,444,363 Circuit arrangement with a rectifier circuit
In accordance with an embodiment, a method includes receiving by a drive circuit electrical power from a voltage tap of a first rectifier circuit that includes...
US-9,444,362 Rectifier circuit with current injection
The present invention relates to a rectifier circuit with a three-phase rectifier arrangement (1) of semiconductor valves (2), preferably a bridge rectifier...
US-9,444,361 Mechanical arrangement of a multilevel power converter circuit
A mechanical arrangement of a multilevel power converter circuit includes a power converter having a first portion with a plurality of first control inputs, at...
US-9,444,360 State quantity detection method in power converting apparatus and power converting apparatus
A current-source converter includes high-arm side switching elements and low-arm side switching elements. A voltage between the DC power supply lines is...
US-9,444,359 Power conversion apparatus with induction control
Disclosed is a power conversion apparatus with further reduced inductance of conductors coupling condensers. The power conversion apparatus includes a smoothing...
US-9,444,358 Multiple-input isolated push-pull connected power converters
A multiple-input power converter transferring energy from multiple input sources to a load. The multiple-input power converter utilizes a push-pull converter...
US-9,444,357 Active reduced voltage switching using secondary switch
A controller includes a primary controller and a secondary controller to control switching of a power switch and a secondary switch, respectively, coupled to an...
US-9,444,356 Power supply device and power supply switching method
A power supply device (10) includes a plurality of constant current output circuits (14) that can supply power to a load (12). The constant current output...
US-9,444,355 Method and apparatus for determining a bridge mode for power conversion
A method and apparatus for controlling power conversion. In one embodiment, the method comprises computing a ratio based on both voltage and charge pertaining...
US-9,444,354 Voltage converter that steps up low starting voltages to higher voltages
The present invention relates to a voltage converter circuit for transforming a low voltage applied to its input into a higher output voltage at an output. The...
US-9,444,353 Isolated power converter and associated switching power supply
In one embodiment, an isolated power converter can include: (i) a transformer having a primary winding and a secondary winding; (ii) a secondary rectifier...
US-9,444,352 Current resonance type power supply device
Embodiments of the invention may include: a series circuit connected to a junction of a first switch element and a second switch element connected in series...
US-9,444,351 Electrical power conversion device including normally-off bidirectional switch
A normally-off bidirectional switch having two gates is connected to a transformer. The transformer has a first winding and a second winding. A first gate bias...
US-9,444,350 DC-DC converter with LC resonance circuit and transformer
A DC-DC converter includes a capacitor configured to be charged for a predetermined period by an external voltage, an inductor configured to constitute an LC...
US-9,444,349 DC/DC converter, control circuit thereof, power supply, power adapter and electronic apparatus using the same
A control circuit of a DC/DC converter having a transformer, a switching transistor, and a detector includes: a feedback terminal receiving a feedback voltage...
US-9,444,348 Electronic apparatus and power controlling method thereof
An electronic apparatus and a power controlling method thereof are provided. The electronic apparatus includes a system unit supplied with power to conduct an...
US-9,444,347 Switched mode power supply with a simplified start-up supply
A switched mode power supply (SMPS) is disclosed in which a simple primary side controller is used to send a single pulse of energy to the secondary side to...
US-9,444,346 Apparatus and efficiency point tracking method for high efficiency resonant converters
A converter comprises an input stage coupled to a power source, wherein the input stage comprises a plurality of power switches, a resonant tank coupled to the...
US-9,444,345 Switch mode power supply module and associated hiccup control method
The invention concerns a method and device for controlling the switching operation in a switch mode power supply module. The switch mode power supply module is...
US-9,444,344 Methods and apparatuses for obtaining voltage information based on charge packets input at different timings
Disclosed is a voltage obtaining apparatus. The voltage obtaining apparatus includes a plurality of conversion units, which are connected to each other in...
US-9,444,343 Voltage regulator using a variable switching frequency
A method for controlling a voltage regulator includes monitoring an output current and an inductance of an output inductor in a voltage regulator, wherein the...
US-9,444,342 Clocked pulse frequency modulation buck DC-to-DC converter
A hysteretic mode control circuit within a DC-to-DC converter is configured for varying the current limit that controls the switching interval and duration of a...
US-9,444,340 Circuits and methods for providing current to a load
The present disclosure includes switching regulator circuits and methods. In one embodiment, cross coupled circuits are provided. In one embodiment, a first...
US-9,444,339 DC-DC converter
A DC-DC converter, adapted to control a converting circuit to convert an input voltage into an output voltage, is disclosed. The converting circuit comprises a...
US-9,444,338 Systems and methods to calibrate switching regulators
Various embodiments of the invention provide for a double measurement technique to enable auto-calibration of a switching regulator. In certain embodiments,...
US-9,444,337 DCDC converter including clock generation circuit, error amplifier and comparator
To provide a DCDC converter achieving low power consumption. A clock generation circuit, an error amplifier, a comparator, and a timer are included in a control...
US-9,444,336 Switching regulator
A switching regulator includes a load determination circuit. The load determination circuit feeds, to an offset voltage generation circuit, a different load...
US-9,444,335 Switching regulator control circuit and switching regulator
Provided is a switching regulator configured to achieve a 100% Duty state and reduce an occurrence of an overshoot. The switching regulator has a configuration...
US-9,444,334 DC/DC converter
The present invention includes: a zero crossing detection circuit which outputs a zero crossing signal when an inductor's regeneration period is completed; a...
US-9,444,333 Auto-tuning switching regulator
In an example, a system and method are disclosed for providing a single control law that is operable to regulate both small-signal, steady-state operation, and...
US-9,444,332 System and method for controlling a power supply during discontinuous conduction mode
In accordance with an embodiment, a controller for a switched mode power supply includes an average current comparator that determines whether an average...
US-9,444,331 System and method for a converter circuit
In accordance with an embodiment, a circuit includes a switch coupled between a first reference terminal and a first output terminal, an inductive element...
US-9,444,329 Step-up/step-down voltage converter having low output ripple
A voltage converter device converts an input signal having a given input voltage value into an output signal having an output voltage different from the input...
US-9,444,328 Acoustic noise mitigation using periodicity disruption
In one or more embodiments, a fixed time interval for a system is determined. The fixed time interval corresponds to time between clock ticks. A random time...
US-9,444,327 Boost PFC converter, method and control circuit used for boost PFC converter
A boost PFC converter, a method and a control circuit used for boost PFC converter are discussed in the present invention. The boost PFC converter decreases the...
US-9,444,326 Sepic-type voltage converter
A SEPIC-type voltage converter for converting an input voltage supplied by a power supply into an output voltage comprises an inductive component comprising...
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