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Class 310/314 - Electrical systems


Subclass of Class 310 - Electrical generator or motor structure
Definition: Subject matter for supplying electric energy via an electric
No. of patents: 79
Last issue date: 05/15/2012


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NumberTitleIssue Date
8179018Active material actuator regulation utilizing piezoelectric and piezoresistive effect
An active material actuator adapted for use in a circuit includes an active material member, and a piezoelectric or piezoresistive element or otherwise force sensing device, wherein the element or device is communicatively coupled to the member and operable to vary ...
05/15/2012
7723898Device for the vibrational detection of fill-level limit state and a process for the vibrational detection of a fill-level limit state
A device for the vibrational detection of a fill-level limit state and a process for the vibrational detection of a fill-level limit state The invention relates to a device for the vibrational detection of a fill-level limit state, and to a corresponding proc...
05/25/2010
7408290Power driving circuit for controlling a variable load ultrasonic transducer
The present invention is directed to a high-powered (e.g., >500 W) ultrasonic generator for use especially for delivering high-power ultrasonic energy to a varying load including compressible fluids. The generator includes a variable frequency triangular waveform ge...
08/05/2008
7371962Diode energy converter for chemical kinetic electron energy transfer
An improved diode energy converter for chemical kinetic electron energy transfer is formed using nanostructures and includes identifiable regions associated with chemical reactions isolated chemically from other regions in the converter, a region associated with an ...
05/13/2008
7358644Method for controlling an actuator and control device belonging thereto
A method for the electric control of an actuator, especially a piezoelectric actuator of an injection system comprises the following steps: charging the actuator; waiting during a specific period of time (D1, D2) and discharging the actuator after the ...
04/15/2008
7355321Mechanical quantity sensor
A mechanical quantity sensor includes a current-to-voltage converter/signal adder circuit that converts electric current signals flowing through two piezoelectric vibrators into voltage signals. The piezoelectric vibrators receive stresses generated by a mechanical ...
04/08/2008
7355323Piezoelectric device, droplet jetting device using the same, and image output device
A piezoelectric device includes a flexible substrate and a piezoelectric element including a pair of electrodes each positioned on the flexible substrate. A switching element is connected to one of the pair of electrodes, in the flexible substrate, and a common line...
04/08/2008
7352107Transconductance circuit for piezoelectric transducer
A transconductance monitoring and amplifying circuit for a piezoelectric transducer that may be used in, e.g., a motion detector system includes a FET, with the transducer (and, hence, the signal voltage reference) floating between the gate and source of the FET, as...
04/01/2008
7335169Systems and methods for delivering ultrasound energy at an output power level that remains essentially constant despite variations in transducer impedance
Systems and methods deliver ultrasound energy to an ultrasound transducer having an impedance subject to variations. The systems and methods electrically couple an ultrasound generator to the ultrasound transducer to deliver ultrasound energy. The systems and method...
02/26/2008
7336022Piezoelectrical bending converter
Piezoelectrical bending converter with at least one monolithic layered composite, includes a piezoelectric-active ceramic layer with a lateral dimension change which may be generated by application of an electrical field and at least one further piezoelectric-active...
02/26/2008
7262561Method for controlling power supply through multiple modulation modes
A method for controlling power supply through multiple modulation modes aims to control an inverter of a selective characteristic through a cycle control signal of varying modulation modes to ensure that the inverter and the load on the rear end function in a reliab...
08/28/2007
7262522Microelectromechanical isolating power converter
A microelectromechanical system (MEMS) device is used to transfer power from a source generator to a power generator that delivers electrical power to a load, while maintaining electrical isolation between the source generator and power generator for size critical a...
08/28/2007
7259499Piezoelectric bimorph actuator and method of manufacturing thereof
An actuator is disclosed, which includes a piezoelectric bimorph. The actuator also includes a substantially moisture impervious and electrically insulating packaging having a cavity around the bimorph providing for a clearance around the bimorph. The packaging incl...
08/21/2007
7254068Semiconductor memory device
Parasitic capacitances formed between bit lines to which signals are to be read out of memory cells and a signal transmission line arranged above them are to be reduced. Second complementary global bit lines for transmitting data read out of memory cells MC via comp...
08/07/2007
7227294Piezoelectric motor drive circuit and method
A piezoelectric transducer is driven to mechanically oscillate a mirror at a mechanical resonant frequency with high precision despite frequency variations introduced by temperature, tolerances and ageing of components. Switches are actuated at different times in or...
06/05/2007
7225284Increasing the quantity of I/O decode ranges using SMI traps
A method of increasing the quantity of input/output (I/O) decode ranges using system management interrupts (SMI) traps is disclosed. In one aspect, the present disclosure teaches a method of increasing the quantity of I/O decode ranges using SMI traps in a chipset i...
05/29/2007
7223914Pulsed electron jump generator
A device and method for stimulating pulsed chemical reactions in a small volume of gaseous reactants. An emitter stimulates the reactions of a fuel oxidizer mixture and a collector converts the vibrational energy of the resulting products into useful energy. The dev...
05/29/2007
7216417Method for manufacturing an electromechanical sensor element
Method for manufacturing an electromechanical sensor element for converting mechanical forces produced by the movements and vital functions or a person into electric signals, in which method a sensor film (11) is provided with metallic electrodes (15,16
05/15/2007
7165746Vibration motor primary flight control actuator
The invention provides an actuator for a control surface (7), in particular for a primary flight control of an aircraft, the actuator including a main actuator (3) in a main control line (1) for actuating the control surface (7), the actu...
01/23/2007
7161498Vehicle positioning apparatus
Vehicle positioning apparatus for facilitating the positioning of a vehicle in a specific position within an enclosure having an automatic door opening device with concurrently activated light source is disclosed. The vehicle positioning apparatus includes a light g...
01/09/2007
7161276Self-powered, electronic keyed, multifunction switching system
A self-powered switching system using electromechanical generators generates power for activation of a latching relay, switch, solenoid or latch pin. The electromechanical generators comprise electroactive elements that may be mechanically actuated to generate elect...
01/09/2007
7157835Oscillating-type generator
An oscillating-type generator is provided in which an impact member impacts piezoelectric elements to generate electricity and which can efficiently increase the number of impacts and generate a large amount of electricity. This oscillating-type generator includes: ...
01/02/2007
7141910Transconductance circuit for piezoelectric transducer
A transconductance monitoring and amplifying circuit for a piezoelectric transducer that may be used in, e.g., a motion detector system includes a FET, with the transducer (and, hence, the signal voltage reference) floating between the gate and source of the FET, as...
11/28/2006
7122735Quantum well energizing method and apparatus
A method and apparatus that converts energy provided by a chemical reaction into energy for charging a quantum well device. The disclosed apparatus comprises a catalyst layer that catalyzes a chemical reaction and captures hot electrons and hot phonons generated by ...
10/17/2006
7119272Gas specie electron-jump chemical energy converter
An apparatus and method for extracting energy is provided. In one aspect the method includes using chemical reactions to generate vibrationally excited molecules, such as high-quantum-number-vibrationally-excited gas molecules in a region. The vibration energy in th...
10/10/2006
7049912Electrical device comprising a controlled piezoelectric actuator
An electric switching device of which each power pole includes a movable bridge equipped with at least one movable contact that co-operates with at least one fixed contact of the pole between open and closed positions. The switching device includes at least one appr...
05/23/2006
7042134Transconductance circuit for piezoelectric transducer
A transconductance monitoring and amplifying circuit for a piezoelectric transducer that may be used in, e.g., a motion detector system includes a FET, with the transducer (and, hence, the signal voltage reference) floating between the gate and source of the FET, as...
05/09/2006
7034436Device to control a piezoelectric actuator
A device for controlling a piezoelectric actuator (Cp), in particular for a fuel-injection valve of an internal combustion engine, comprises an energy source (EQ), which supplies the actuator (Cp) with energy (E0), whereby the extension of the piezoelectric a...
04/25/2006
7034800Driving circuit and driving method for piezoelectric transformer, backlight apparatus, liquid crystal display apparatus, liquid crystal monitor, and liquid crystal TV
A driving circuit for a piezoelectric transformer is provided, which is capable of driving a piezoelectric transformer at a high efficiency and with low distortion, and being miniaturized. At the commencement of lighting a cold-cathode fluorescent tube, a digital co...
04/25/2006
7023125Ultrasonic-motor driving apparatus
An ultrasonic-motor driving apparatus includes an ultrasonic motor, a driving unit, and a characteristic storage. The driving unit is detachable from the ultrasonic motor and has a driving circuit for driving the ultrasonic motor. The characteristic storage provided...
04/04/2006
7019605Stacked bulk acoustic resonator band-pass filter with controllable pass bandwidth
The band-pass filter has a stacked pair of film bulk acoustic resonators (FBARs) and an acoustic decoupler between the FBARs. Each of the FBARs has opposed planar electrodes and a layer of piezoelectric material between the electrodes. The acoustic decoupler has a s...
03/28/2006
7015621Piezoelectric actuator device
The present invention relates to a piezoelectric actuator device that enables hysteresis of the amount of displacement in the piezoelectric actuator to be reduced, enables the system configuration to be simplified, and for which a high voltage need not be applied. A...
03/21/2006
6996891Method for the manufacture of a sensor element
The invention relates to a method for the manufacture of a sensor element and to a sensor element. In the method, both surfaces of a sensor film are provided with metallic electrodes. The sensor element is produced by cutting it from a larger amount of sensor elemen...
02/14/2006
6975043Pressurized gas to electrical energy conversion for low-power field devices
An industrial process field device with improved power generation is provided. The process device can be a process variable transmitter, process actuator, or any other suitable field device. The field device includes a wireless transceiver that transceives informati...
12/13/2005
6959484System for vibration control
A vibration control system comprising an actuator, and a sensor useful for controlling vibrations in systems for fabricating electronics equipment. The actuator may comprise one or more plates or elements of electro-active material bonded to an electroded sheet....
11/01/2005
6933655Self-powered wireless switch
A wireless switch is provided having a twenty-year life energy harvesting arrangement for self-powering a wireless transmitter. The energy harvesting arrangement is implemented in one embodiment using a piezoelectric switch element. A tritium light source and photov...
08/23/2005
6890390Method for ultrasonic cleaning using phased transducer arrays
A method for cleaning a substrate surface using ultrasonic energy includes an array of ‘N’ transducer elements. Electrical signals, Sn, having signal parameters including a voltage, VN, and phase, θN, are provided to drive each ...
05/10/2005
6870303Multi-mode vibration damping device and method using negative capacitance shunt circuits
A novel multi-mode vibration damper is invented by using a pair of piezoelectric patches connected with negative capacitance shunt circuit units. A piezoelectric material connected with a series resistor-negative capacitor branch circuit is capable of suppressing th...
03/22/2005
6730208Chip and method for fitting out a chip comprising a plurality of electrodes
Chips, and methods of manufacturing thereof, comprising a base having a surface, and a plurality of components integrated in the base. Each component is coupled to at least one individual electrode disposed on the surface and to a counter-electrode. Each component o...
05/04/2004
6700056Pre-equilibrium chemical reaction energy converter
The use of newly discovered chemical reaction products, created when reactants combine to form products on the surface of a catalyst, to generate electricity, beams of radiation or mechanical motion. The invention also provides methods to convert the prod...
03/02/2004
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