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Methods for common mode voltage-based AC fault detection, verification
Methods for AC fault (ACF) detection are provided. In addition, methods for AC fault (ACF) detection and verification are provided. In addition, methods for...
Method and apparatus for determining circular characteristic
A method and a system for determining a circular characteristic for distance protection of a three-phase electric line, the system comprising means for...
Fiber optic fault detection system and method for underground power lines
Embodiments of the present invention are directed to a method and fault detection system for detecting and identifying the location of faults in underground...
Methods and apparatus for determining a presence of a non-conductive
coating on electrodes in downhole fluid...
Methods and apparatus for determining a presence of a non-conductive coating on electrodes in fluid resistivity measurement devices are described. An example...
Silent and thin RF body coil
An imaging subject (16) is disposed in an examination region (12) for examination. A cover (18) is disposed around the examination region (12). Magnetic field...
Microstrip coil designs for MRI devices
A microstrip-based RF coil for use in an MRI apparatus constructed to perform human head and extremity imaging according to one embodiment of the present...
Method for producing a magnetic resonance image of an object having a
short T.sub.2 relaxation time
A method for producing a magnetic resonance image using an ultra-short echo time. The method includes applying a pulse sequence to an object, detecting a...
Method for rapid detecting tumor
The present invention provides a method for rapid detecting tumor. Moreover, this invention uses only the T.sub.1.sup.-1 value as a parameter to distinguish...
MR imaging with an RF pulse producing reduced magnetization transfer
A system and method are provided herein for designing and transmitting RF pulses which cause a reduced off-resonance magnetization transfer saturation. An RF...
Method and apparatus for simultaneously acquiring multiple slices/slabs in
magnetic resonance system
Provided is a method for simultaneously acquiring magnetic resonance slices/slabs of a subject. The method comprises steps as follows. First, apply one or more...
Method and apparatus for view ordering of magnetic resonance imaging data
for dynamic studies
A method for acquiring magnetic resonance (MR) data for a three-dimensional (3D) dynamic study includes partitioning a k.sub.y-k.sub.z plane with a plurality of...
Method and apparatus for acquiring a magnetic resonance image of tissue
containing iron oxide
In a method and apparatus for acquisition of a magnetic resonance (MR) image of tissue containing iron oxide particles frequency-selective inversion of the...
Joint compression of multiple echo trains using principal component
analysis and independent component analysis
NMR spin echo signals are acquired downhole. Principal Component Analysis is used to represent the signals by a weighted combination of the principal components...
System for measuring an electromagnetic field, a control system using the
measuring system, and an electronic...
This system for measuring an electromagnetic field radiated by an electrical component of an electronic circuit, the electrical component being fixed to a...
Magnetic field sensing element having magnetic nanoparticles
A magnetic field sensing element includes a pair of electrodes; a dielectric polymer layer separating the electrodes; and a network of magnetic nanoparticles in...
Rotation angle detection device
A rotation angle detection device includes a rotary body rotating in linked motion with a steering wheel; a detector rotating in linked motion with the rotary...
Non-contacting position sensor using a rotating magnetic vector
A sensor for sensing the position of an object includes a magnet and a magnetic flux sensor. The magnet has dimensions that include a length, a width and a...
Magnetic field sensitive sensor
A sensor, preferably for magnetic rotary or linear sensor systems which include a scale arranged at a given distance from the sensor. The sensor has at least...
Direction detection sensor
A sensor responsive to movement of a detection target includes a magnetic field transducer operative to provide a magnetic field signal proportional to a...
Microminiature gauging displacement sensor
A device for providing displacement information includes a housing holding a displacement sensor. The displacement sensor includes a coil and a captive core. An...
Intelligent electronic device for providing broadband internet access
An intelligent electronic device for monitoring and determining an amount of electrical power usage by a consumer, or end user, and for providing broadband...
Battery connection detecting device and image forming apparatus including
A battery connection detecting device includes a connecting unit, to which a battery is connected, a voltage detecting unit that detects a voltage value of the...
RF power detector
Real power delivered to a load in an RF transmit path is measured. Measuring the real power includes supplying a first voltage from a first side of a passive...
Secum-trahenz method, especially for a network analyzer, for measurement
of a device
The invention relates to a method for measuring objects for measurement, by means of a network analyzer with several measurement ports, at least one signal...
Reference circuit with reduced current startup
An apparatus is provided. The apparatus comprises a reference circuit and a startup circuit. The reference circuit is adapted to provide a startup current,...
Temperature dependent voltage source compensation
A circuit and a method for regulating a voltage supply where the method includes the steps of concurrently measuring temperature, IR drop and frequency response...
External regulator reference voltage generator circuit
Disclosed is an external regulator reference voltage generator circuit that precisely controls the supply voltage applied to core logic to optimize the...
Powering a power supply integrated circuit with sense current
A power control system and method senses input and/or output voltages of a power supply using sense currents in order for an integrated circuit (IC) switch...
Method to reduce inrush voltage and current in a switching power converter
A circuit for minimizing voltage inrush upon startup in a switching power converter having a switching stage including high and low switches connected at a...
Hybrid low dropout voltage regulator circuit
A voltage regulator circuit includes a digital control block, an amplifier and a transistor. The digital control block receives a first reference voltage and a...
Switching DC-DC converter with adaptive-minimum-on-time control and method
of adaptively controlling...
A power converter includes a power switch adapted to receive an input power from an external power source and to generate an output power, and an adaptive...
Systems and methods for fast switch turn on approximating ideal diode
A switching circuit approximating the fast switching characteristics and small forward voltage drop of an ideal diode is provided. The switching circuit may...
Power supply device
A power supply device includes first and second power factor correctors, and first and second resonant circuits. The first and second power factor correctors...
Electrical device and operating method
An electrical device having a generator, e.g., for use in the vehicle electrical system of a motor vehicle, includes a controller for controlling the generator...
According to one embodiment, an electronic device includes a power supply circuit configured to supply, to a battery, a first charge current for a quick charge...
Detection of the supply state of a load supplied by a variable voltage
A method and a circuit for detecting the state of supply of a load by a variable voltage, including measuring the difference between values representative of...
State of charge control method and systems for vehicles
State of charge control for electric and hybrid vehicles. In one embodiment, a battery may be electrically connected to an electric motor to propel a vehicle....
Lithium ion secondary battery system, and method for operating lithium ion
A drop of discharge or charge capacity in discharging or charging with a large current is reduced without changing a design of a lithium ion secondary battery...
Charger control circuit and charger control method
The present invention discloses a charger control circuit and a charger control method for controlling a charger having a transformer, the transformer including...
Battery under-voltage protection
A battery includes a cell and a battery management unit coupled to the cell. The battery management unit is operable to determine whether a battery controller...
Method for charging battery module
A method for charging a battery module including a plurality of parallel-connected battery core sets is provided. In the present method, a constant charging...
Battery management system
A battery management system can include a battery having a plurality of cells, a plurality of devices coupled to the battery, and a control unit coupled to a...
A charger includes a shell assembly defining a receiving space therein, a locating body fixed in the shell assembly and defining a locating cavity and a...
Electric vehicle charging system
A method and system for connecting a vehicle to a charging source comprising: at least one retractable protrusion operatively connected to a battery terminal;...
Electric public transit system
The present invention relates to an electric public transit system, comprising electric driven buses with a cassette battery set and bus-mounted control system,...
Bidirectional power converting device
A bidirectional power converting device coupled between first and second power storage units includes: a coupling circuit including a first winding coupled to...
A battery charger includes a housing, an electrical connector, magnets, and sensors. The electrical connector with a magnet attached thereon is received in the...
Energy recapture for an industrial vehicle
A system for capturing regenerative energy includes a battery configured to provide power for a traction motor and other operations of a vehicle and a capacitor...
Power supply for battery powered devices
An auxiliary power supply (150) includes an auxiliary battery (152), power supply circuitry (154), and a connector (108b). The power supply circuitry (154)...
Battery over-discharge protection with dead-bus recovery
A battery and photovoltaic based power system comprises a power bus, a battery, a battery circuit, a photovoltaic circuit, a photovoltaic diode, and a switch...