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The present invention provides a filter. The filter includes two common electrode layers and two inner electrode layers, where the two inner electrode layers...
Filter chip element and method of preparing the same
Disclosed herein is a filter chip element including a ferrite substrate, internal coil patterns formed on the ferrite substrate; and a ferrite composite layer...
Directional based audio response to an external environment emergency
An audio signal attenuation system and method for detecting an audio emergency warning signal (or alarm) in a vehicle in which an audio signal is being played....
System and method for digital signal processing
The present invention provides methods and systems for digital processing of an input audio signal. Specifically, the present invention includes a high pass...
Electronic device, controlling method and controlling program for
electronic device, and recording medium
An electronic device includes (i) an input-volume measuring section (23) for measuring input volume, which is volume of a sound inputted into the sound input...
Network-enabled audio device
A network-enabled audio device that provides a display device that allows the user to select playlists of music much like a jukebox is disclosed. The user can...
A charge-sensitive amplifier is disclosed for use in amplifying signals from a particle detector. This includes a field effect transistor having a gate, source...
Instrumentation log amp with multiplexed inputs
A device has at least two current mode logarithmic amplifiers having currents as their inputs, and multiplexing logic electrically connected to outputs of the...
Unity gain buffers and related method
A device includes an amplifier stage, a source follower, a resistive device, and a transistor. The source follower has an input terminal electrically coupled to...
Dual path double zero continuous time linear equalizer
A transadmittance amplifier stage is coupled to a transimpedance amplifier stage to form a continuous time linear equalizer. The transadmittance amplifier stage...
Programmable hysteresis comparator
In one embodiment, a circuit includes a differential amplifier having a differential pair with a first transistor and second transistor. Each of the first and...
Limiting driver for switch-mode power amplifier
A switch-mode RFPA driver includes first and second field-effect transistors (FETs) arranged in a totem-pole-like configuration. The switch-mode RFPA driver...
High-frequency bandwidth amplifying circuit
A high-frequency bandwidth amplifying circuit includes a forward channel and a backward channel. An input terminal of the forward channel and an external...
Distortion compensation apparatus and distortion compensation method
A predistorter gives an input signal inputted to a power amplifier distortion corresponding to a compensation coefficient. A band limiter limits components in a...
Power amplification module
A power amplification module includes a first transistor which amplifies and outputs a radio frequency signal input to its base; a current source which outputs...
Multi-broadband Doherty power amplifier
Radio frequency (RF) amplification devices are disclosed that include Doherty amplification circuits and methods of operating the same. In one embodiment, a...
Quasi-doherty architecture amplifier and method
An amplifier including a main amplifier circuit and at least one peaking amplifier circuit. The peaking amplifier circuit is selectively operable to operate in...
Harmonic rejection power amplifier
A power amplifier is provided that generates timing signals which respectively turn on or off switches for respectively opening or closing current paths for...
Multi-band power amplifier
An apparatus includes a first capacitor, an inductor coupled to the first capacitor, and a second capacitor coupled to the inductor. The second capacitor is...
Switching current source radio frequency oscillator
A novel and useful RF oscillator suitable for use in applications requiring ultra-low voltage and power. The oscillator structure, employing alternating current...
System and method for enhanced watch dog in solar panel installations
A system and method for automated shutdown, disconnect, or power reduction of solar panels. A system of solar panels includes one or more master management...
Photovoltaic systems with local maximum power point tracking prevention
and methods for operating same
A photovoltaic system includes solar cells and an inverter configured to convert direct current generated by the solar cells to alternating current. The...
Photovoltaic module and control method thereof
A photovoltaic module includes: a solar cell module including a plurality of solar cells; a junction box including a capacitor unit to store DC power supplied...
A photovoltaic module includes: a solar cell module including a plurality of solar cells; and a junction box including a capacitor unit attached to one face of...
Highly adjustable and adaptable exterior panel racking system
A racking system for holding solar panels and other similar panels in a fixed position and that can easily adjust to terrains which are not level and adapt to...
Self-locking photovoltaic module mounting system
A photovoltaic module mounting assembly including a photovoltaic module lever lock and base portion for attaching photovoltaic modules to a roof surface. The...
System for mounting a photovoltaic module to a surface
A system for removably and adjustably mounting a device on an object is provided. The system for removably and adjustably mounting a device on an object,...
Panel mounting bracket with under-mounting clamp and related methods
A system for mounting a solar panel(s) on a building, where the solar panel has an outer frame defining a lip. The system may include a plurality of panel...
Motor control devices and methods
A system and method for preventing damage to a controller of an electric motor in a vehicle from back electromotive force, the vehicle having a battery,...
Multiple field motor controller
An electric motor including a first conductive winding, a second conductive winding, a rotor, and a controller is disclosed. When energized by an AC source, the...
Rotary electric machine control apparatus and control method for rotary
A rotary electric machine control apparatus includes: a phase estimator configured to estimate a first estimated phase value based on a rotary electric machine...
Power generation control unit determining maximum excitation current of
power generator mounted on vehicle
An on-vehicle power generation control unit includes current detecting unit; communication unit; holding unit; maximum current determining unit; and current...
Compressed air energy storage system utilizing two-phase flow to
facilitate heat exchange
A compressed-air energy storage system according to embodiments of the present invention comprises a reversible mechanism to compress and expand air, one or...
Wind farm harmonic predictor and method for predicting harmonics
A harmonic predictor for a wind farm comprising at least two wind turbines, each having a generator with a converter for generating electrical energy. The...
Power system that operates in an exercise mode based on measured
A power system may include a power generation component and a sensor configured to measure a parameter. The power system may also include a controller in...
Sensed motor winding current adapting blanking period between max/min
Stepper motor winding current regulation methods and apparatus adapt a maximum blanking period to generate an adapted blanking period that is proportional to a...
Mixer with direct drive DC motor
A mixer with a DC motor with a reducing gear is coupled to a speed control circuit. An output shaft from the reducing gear is coupled to a hub drive gear which...
PMSM rotor angle identification
A method and a control device for identifying the angle and polarity of the rotor of a permanent magnet synchronous motor (PMSM), the motor including a stator,...
BLDC motor sinusoidal PWM with single phase BEMF slot detection
A back electromotive force (BEMF) zero cross may be detected in a brushless direct current (BLDC) motor that is controlled by pulse width modulation (PWM). A...
Motor control device
A ripple current that flows into a main-circuit capacitor is estimated based on a system impedance and output power to a motor, thereby making it possible to...
Motor control device and electric power steering device
There is provided a motor control device for controlling a motor including plural sets of windings, which is configured so that, when a fault detection means...
Motor with rotor-mounted control circuitry
A rotating electromechanical machine has a rotor having at least one current-carrying winding and at least one rotor-mounted sensor configured to sense a...
Double wound rotor type motor with constant alternating current or direct
current power supply input and...
A double wound rotor type motor with a constant alternating current or direct current power supply input and a control method thereof is disclosed. The wound...
Transducer including an elastomer
A transducer includes a high-resistance layer that includes an elastomer and has a volume resistivity of 10.sup.12 .OMEGA.cm or more, a pair of electrodes that...
Energy harvesting system
A system, in certain embodiments, includes a joint and an energy harvesting system. The energy harvesting system includes an energy conversion system configured...
Multi-actuator design and control for a high-speed/large-range
Multi-actuator system. The system includes at least two nano positioners having different ranges and bandwidths located in cascaded serial form to contact and...
Ultrasonic wave motor and ultrasonic wave motor-equipped device
A driving device having a vibration element, a friction member, and a pressing member for applying pressure in a direction in which the vibration element and...
MEMS shock cushion spring systems and methods
Techniques are disclosed for systems and methods to provide shock impact mitigation for MEMS structures. A MEMS structure may include one or more actuators. An...
Multi-level converter apparatus and methods using clamped node bias
A multi-level converter includes first and second DC buses, a plurality of transistors coupled in series between the first and second DC buses and a clamp...
Inverter modulator with variable switching frequency responsive to a
An inverter control is used to control the output of a distributed power generating station, such as a photovoltaic (PV) solar power station, connected to a...