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Patent # Description
US-9,369,078 Method of current reference generation for a motor
A motor control system for determining a reference d-axis current is provided, and includes a motor, a DC power source and DC input lines, and a current command...
US-9,369,077 Differential speed control apparatus
A differential speed control apparatus is provided having an input shaft in connection with a transmission, a speed reducer, and a planetary gear unit acting in...
US-9,369,076 Dynamic braking system for an electric power system and method of operating the same
A dynamic braking system for an electric power system includes a switching device coupled to an electrical conductor. The switching device is configured to open...
US-9,369,075 Resonant commutation system for exciting a three-phase alternator
An alternator has a field coil that produces a magnetic field which induces electricity in a coil arrangement. A field coil excitation system includes a...
US-9,369,074 Electric power supply system
An electric power supply system includes: an AC generator having a drooping characteristic; a rectification section for converting AC output of the AC generator...
US-9,369,073 Load-adaptive smooth startup method for sensorless field-oriented control of permanent magnet synchronous motors
A field oriented control (FOC) system and method provides smooth field-oriented startup for three-phase sensorless permanent magnet synchronous motors (PMSMs)...
US-9,369,072 Brushless motor driving circuit and brushless motor driving system
A controlling circuit of the brushless motor driving circuit turns on a switch circuit to provide an electrical conduction between a fixed potential and a...
US-9,369,071 Discontinuous pulse width modulation
A discontinuous pulse width modulation technique is used in a controller to control an inverter that converts DC battery power to AC power to operate an...
US-9,369,070 Method for correcting torque for substituting permanent-split capacitormotor by electronically-commutated motor
A method for correcting torque including: presetting rotational speed of each gear by corresponding gear input lines of a microprocessor; providing a mechanism...
US-9,369,069 Control device of fan motor
A control device of a fan motor includes: a voltage sensor that detects a voltage applied to a fan motor; a switching portion that selectively connects to each...
US-9,369,068 Control device for drive device
Multipliers 21a and 21b output values, which are obtained by multiplying a total drive command value E.sub.s by first and second gains G.sub.1 and G.sub.2,...
US-9,369,067 Vibrational wave driving apparatus
A vibrational wave driving apparatus in the present invention includes an elastic member attached to an electromechanical energy transducing member, a pair of...
US-9,369,066 MEMS device comprising an under bump metallization
The present invention concerns a MEMS device comprising an under bump metallization (4)--UBM--to contact the device via flip-chip bonding with a substrate. The...
US-9,369,065 Power conversion device
An inexpensive and space-saving power conversion device is provided which can eliminate a high-cost and large reactor like a buffer reactor. A device includes...
US-9,369,064 Current source inverter and operation method thereof
A current source inverter includes a controller, an input unit, a buffer unit, a modulating unit, and a commutator. The controller generates a switch control...
US-9,369,063 Output power adjusting method for inverter
An output power adjusting method is applied on an inverter. The inverter includes a capacitor to store direct current (DC) electricity provided by a...
US-9,369,062 Single-phase emergency operation of a three-phase inverter and corresponding inverter having a polyphase to...
A method for converting DC power from a source into AC power by means of an inverter which includes three bridge branches, each having a phase output, is...
US-9,369,060 Power generation system and package
A power generation system includes an input to receive a low-voltage alternating current and a number N of voltage-conversion modules coupled to the input, each...
US-9,369,059 AC-DC converter for wide range output voltage and high switching frequency
An electrical circuit includes an input for an AC input voltage coupled to a first inductive element with first and second outputs coupled to respective first...
US-9,369,058 Inductive power transfer control
An inductive power transfer (IPT) control method is disclosed for controlling the output of an IPT pick-up. The invention involves selectively shunting first...
US-9,369,057 Apparatus having a vacuum chamber configured to convert electromagnetic waves to electricity
An electricity generator comprises a core having an interior chamber having a top portion and a bottom portion. The core is held at a vacuum. A frequency...
US-9,369,056 Power converter
A power converter is provided for direct conversion of multi-phase AC power to AC power. The power converter includes a conversion circuit and a plurality of...
US-9,369,055 Power converter
A power converter is provided for direct conversion of multi-phase AC power to AC power. The power converter includes a conversion circuit, a plurality of input...
US-9,369,054 Reducing power consumption of a synchronous rectifier controller
The embodiments herein describe a switched mode power converter. In particular, the embodiments herein disclose techniques for reducing power consumption of a...
US-9,369,053 Power supply device and lighting apparatus using the same
In a power supply device, a primary winding of a transformer is connected in series to a main switching element, and is connected in parallel to a series...
US-9,369,052 Plural commutated-element direct-current current transformer
The present invention provides a plural commutated-element direct-current current transformer (DCCT) that offers wide bandwidth together with freedom from...
US-9,369,051 Interleaved forward converter with wide input and output dynamic range
An interleaved forward voltage converter having a first inverter stage has a first transformer having a first secondary winding coupled to a filter inductor. A...
US-9,369,050 Indirect current sensing method for a constant current flyback converter
An LED driver circuit includes circuitry for indirect sensing of an isolated output current. A rectifier circuit produces DC power to a power factor correction...
US-9,369,049 Integrated switch mode power supply controller and switch mode power supply using the same
In one embodiment, an integrated switch mode power supply controller can include: a multiplexing pin that receives a detection voltage signal; a switch mode...
US-9,369,048 Dimming edge detection for power converter
A controller for a power converter includes an edge detection circuit and a drive circuit. The edge detection circuit includes a comparator, a count module, and...
US-9,369,047 Power control methods for flyback converters based on the current limit and switching frequency
Methods for flyback converters are provided. The method, adopted by a flyback converter circuit including a transformer, including: determining an output...
US-9,369,046 Power converters with adaptive slew rate and methods of operating same
A power converter includes a converter circuit comprising a semiconductor switch configured to couple a power supply node to an output node responsive to an...
US-9,369,045 Switching power supply device and a semiconductor integrated circuit
In a switching power source which controls a current which flows in an inductor through a switching element which performs a switching operation in response to...
US-9,369,044 Multi-phase power circuit
According to one embodiment, a power circuit includes an input terminal 1 to which a DC input voltage is applied, an output terminal 2, a first DC/DC converter...
US-9,369,043 Phase current balancing for multiphase converters
A DC-DC converter includes a first differential voltage sensor to detect a first inductor current by sensing a first differential voltage across a first power...
US-9,369,042 Multiphase DC-to-DC switching power converter with leading edge and cross channel blanking
A multiphase DC-to-DC synchronous power converter, which has a number of converter channels that generate a corresponding number of current sense signals,...
US-9,369,041 Analog input output linearization control
A voltage converter for converting an input voltage to an output voltage is disclosed. The voltage converter includes a voltage converter circuit having a set...
US-9,369,040 Load aware voltage regulator and dynamic voltage and frequency scaling
A voltage regulator and/or associated circuitry provides an indication of average current consumed or drawn by a load, level and magnitude of transient events,...
US-9,369,039 Driving device, light-emitting device, projection device, control method, and storage medium
A driving device includes: a power source circuit that converts inputted power to a constant voltage or constant current power, and outputs this converted...
US-9,369,038 Semiconductor integrated circuit and power supply circuit
A semiconductor integrated circuit that includes: a capacitive element that has a first end connected to a first node and a second end connected to a second...
US-9,369,037 Step-up converter having two reciprocally clocked switches
A step-up converter for stepping up an electrical input DC supply voltage to an electrical output DC supply voltage, including a voltage input having a positive...
US-9,369,036 Power bootstrapping for lowering quiescent current
A circuit includes a switching regulator that produces a first voltage supply output and that includes an operational supply input. The operational supply input...
US-9,369,035 Power converter and method of operation
A power converter includes a first phase leg including a first di/dt reactor and a first control section, the first di/dt reactor and the first control section...
US-9,369,034 Switching power supply circuit using switching devices and switching controller
A switching power supply circuit includes a transformer, a switching unit which includes at least one switch and is connected to an output of the transformer,...
US-9,369,033 Low power switched mode power supply
A switched mode power supply for supplying power from a power source to one or more output voltage rails, including: a switching unit configured to receive a...
US-9,369,032 Vehicle AC generator
Provided is a vehicle AC generator that further enhances safety at the time of a vehicle collision, without resorting to changes in material or changes in...
US-9,369,031 Electromagnetic actuator with enclosure sleeve surrounding armature and at least one permanent magnet
The invention relates to an electromagnetic actuator having a magnetically soft housing with at least two field coils which are distanced from each other...
US-9,369,030 Dynamo-electric machine
A dynamo-electric machine is provided comprising a stator and a rotor assembly which is rotatably mounted relative to the stator and which has a rotor shaft....
US-9,369,029 Rotating rectifier assembly for electric machine
An electric machine having a rectifier assembly placed within a rotating shaft of the electric machine to convert the AC output of the electric machine to DC...
US-9,369,028 Electronically commutated motor
An electronically commutated motor, including: a motor body and a motor controller. The motor controller includes a control box and a circuit board disposed in...
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