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| Patent # | Description |
|---|---|
| US-5,923,175 |
Apparatus for contactless measurement of the electrical resistance of a
conductor An apparatus for contactlessly measuring the electrical resistance per unit ength of a low-resistance test conductor (e.g., wire or cable) at a selected... |
| US-5,923,174 |
Device for measuring electromagnetic radiation absorption A device for measuring electromagnetic radiation absorption of a test surface includes an electromagnetic transceiver, an x-y axis positioning mechanism, and a z... |
| US-5,923,173 |
Circuit for detecting a wrong operation of a flyback transformer A circuit, which can detect a wrong operation of a flyback transformer having a low voltage coil and a high voltage coil, includes a voltage sensing coil which... |
| US-5,923,172 |
Penning type gauge head with ignition aid A penning type gauge head with an electrode system comprising an anode and a cathode disposed in the magnetic field of a permanent magnet, including an ignition... |
| US-5,923,171 |
Determining a parameter on a component in a composition A method of determining a parameter selected from the electrical conductivity and the volume fraction of a component in a composition comprising a plurality of... |
| US-5,923,170 |
Method for near field electromagnetic proximity determination for
guidance of a borehole drill A method and apparatus for precise measurement of the distance and direction from a magnetic field sensor to a nearby magnetic field source includes an elongated... |
| US-5,923,169 |
Magnetic resonance imaging system with floating pole pieces A magnetic resonance imaging suite is sheathed with plates (32, 34, 36) of iron or other ferrous material. The plates define projections (42, 44, 54, 54', 68) in... |
| US-5,923,168 |
Correction of artifacts caused by Maxwell terms in slice offset echo
planar imaging A method is disclosed to remove the image artifacts produced by Maxwell terms arising from the imaging gradients in an echo planar imaging pulse sequence. The... |
| US-5,923,167 |
Pulsed nuclear magnetism tool for formation evaluation while drilling A logging-while-drilling tool contains a pulsed nuclear magnetic resonance (NMR) device for evaluating earth formations. An antenna of the pulsed NMR device is... |
| US-5,923,166 |
Electrically insulating cantilever magnetometer with mutually isolated
and integrated thermometry, background... A high sensitivity torque and force cantilever magnetometer having a cantilever with isolated capacitance detection and nulling circuits which provides increased... |
| US-5,923,165 |
Method and apparatus for detecting broken sewing needles in sewn articles Disclosed are a method and apparatus for detection of a magnetic substance erroneously included in a non-magnetic product. The non-magnetic product such as a... |
| US-5,923,164 |
Apparatus and method for automatically tuning the gain of an amplifier An apparatus and method for automatically and periodically tuning a signal having a gain element, a variable impedance associated with the gain element, and a... |
| US-5,923,163 |
Method for defect detection in rotational speed sensors At certain operating points, a plausibility test of the detected rotational speed signals is used to recognize an existing defect. The operating point for... |
| US-5,923,162 |
Non-inductive lead path hall effect electrical current sensor An electric current sensor employing a Hall effect generator to be used in measuring electrical currents flowing in a current carrying conductor including a... |
| US-5,923,161 |
Graphical display device A measuring device displays waveforms representative of electrical signals and includes a selector, at least one input terminal, and a graphical display. The... |
| US-5,923,160 |
Electrostatic discharge event locators Determining the location of an ESD event is achieved through the use of an envelope detector or absolute value comparator which identifies the arrival of an... |
| US-5,923,159 |
Logarithmic taper resistor with zero crossing changes A digital potentiometer capable of being connected directly to an electronic switch is disclosed. The digital potentiometer for example may utilize a 64 step... |
| US-5,923,158 |
Power control apparatus for solar power generation system In a power control apparatus of a solar power generation system for converting power generated by a solar panel and supplying the converted power to a load, the... |
| US-5,923,157 |
Semiconductor device capable of decreasing an internal voltage in period
of acceleration test In a semiconductor device comprises an internal circuit and which is supplied with an external voltage, the internal circuit is operated in an internal voltage... |
| US-5,923,156 |
N-channel voltage regulator A voltage regulator circuit for regulating an input voltage supply. The voltage regulator includes an n-channel transistor that has a gate and a source/drain... |
| US-5,923,155 |
Circuit for the production of an auxiliary voltage A circuit arrangement for auxiliary voltage production in which auxiliary voltage is produced essentially independently from a directly regulated output voltage... |
| US-5,923,154 |
Voltage boost circuit A voltage boost circuit having a voltage output and a single input receives a DC voltage from an external source which is fed to an inductor. The input voltage... |
| US-5,923,153 |
Circuit for moderating a peak reverse recovery current of a rectifier
and method of operation thereof In a power converter having a power train that includes a power switch and a rectifier for conducting forward currents from the power switch, a circuit for, and... |
| US-5,923,152 |
Power factor correction circuit with soft switched boost converter A boost converter for a power factor correction circuit having application in a DC power supply for telecommunication equipment. The boost converter has a pair... |
| US-5,923,151 |
Generator voltage regulating system A motor vehicle electrical system having an engine-driven generator for supplying electrical loads on the vehicle, and a semiconductor switch connected in series... |
| US-5,923,150 |
Charging apparatus A charging apparatus for controlling so as to charge a connected secondary battery by a constant current which is equal to or less than a constant voltage and to... |
| US-5,923,149 |
Charging apparatus A charging apparatus controls the charging of a secondary battery such that charging is performed using a constant current as long as a terminal voltage of the... |
| US-5,923,148 |
On-line battery monitoring system with defective cell detection
capability An on-line battery monitoring system for monitoring a plurality of battery cells identifies and computes individual cell and battery bank operating parameters.... |
| US-5,923,147 |
Battery charger unit incorporated in a power cord reel housing The present invention relates to a battery charging unit comprising a housing having a current supply means provided therein for supplying current to an... |
| US-5,923,146 |
Battery charging unit incorporated in a power cord reel housing The present invention relates to a battery charging unit comprising a housing having a current supply means provided therein for supplying current to an... |
| US-5,923,145 |
Controller for variable speed motor A controller controls the running speed of a variable speed motor of the type which runs at a speed related to the duty cycle of a pulse width modulated drive... |
| US-5,923,144 |
Frequency generator for a motor controller A method for generating electrical frequencies of a alternating current motor is disclosed wherein a torque current command signal, a d-axis voltage command... |
| US-5,923,143 |
Solid state motor starter with energy recovery A motor starter circuit providing recovery of the energy trapped in the motor windings when the supply voltage and current have opposite polarities by... |
| US-5,923,142 |
Low cost drive for switched reluctance motor with DC-assisted excitation A reluctance machine system including a reluctance machine having a rotor and a stator including at least one phase winding and a full pitch auxiliary field... |
| US-5,923,141 |
Current shaping in reluctance machines A current control circuit for a switched reluctance machine provides corner shaping at the end of the active conduction period of a phase in which the phase... |
| US-5,923,140 |
Detecting device for detecting the traveling state of a moving object A detecting device includes: an actuator with its end placed in a conveying path of a moving object such as a sheet etc., pivotally supported by a rotary shaft... |
| US-5,923,139 |
Passive robotic constraint devices using non-holonomic transmission
elements A passive constraint device for implementing a programmable virtual constraint surface, comprises one or more non-holonomic kinematic transmission element for... |
| US-5,923,138 |
Manually-operated handwheel interpolation-generating device A manually-operated handwheel interpolation generating device mainly makes use of a set-up of pulse adjuster to be used by the operators to perform smoothing... |
| US-5,923,137 |
Motor-controlled windshield wiper system In a wiper system using a reversible motor for reciprocating angular movement of a wiper arm, a separate relay and a separate position detecting segment are used... |
| US-5,923,136 |
System for powering auxiliary equipment in a remotely-powered pumping
station A transformer has its primary windings connected in series with the pumping motor and has secondary windings powering in cascade a rectifier and a voltage... |
| US-5,923,135 |
Control apparatus and method for motor to prevent motor drive circuit
from being overloaded Described are control apparatus and method for a motor applicable to an electric vehicle in which a motor drive circuit having a plurality of arms, each arm... |
| US-5,923,134 |
Method and device for driving DC brushless motor A device for driving a DC brushless motor by outputting commutation control signals based on voltages induced in the drive windings includes a position detection... |
| US-5,923,133 |
Adaptive slew rate adjustment for a brushless multiphase DC motor and
method A set of circuits for controlling the slew rate of a driving transistor in a rotating three-phase DC motor having a "Y" configuration of coils. The slew rate is... |
| US-5,923,132 |
Method and apparatus for synchrononous multi-axis servo path planning A motion controller generates commands to control electric motors of a multi-axis industrial machine in accordance with calculated positions set forth in a path... |
| US-5,923,131 |
Compensating device for raster distortion of CRT A compensating device for raster distortion is provided, which can compensate a raster distortion, preferably including an inner pincushion distortion, by a... |
| US-5,923,130 |
Repetitive and constant energy impulse current generator This invention relates to an impulse generator which utilizes the properties of floating electrodes. An exemplary impulse generator comprises a floating... |
| US-5,923,129 |
Apparatus and method for starting a fluorescent lamp A power conversion circuit drives a cold cathode fluorescent lamp (CCFL) while requiring minimal number of external components. The circuit includes a... |
| US-5,923,128 |
Electronic ballast for high-intensity discharge lamps An electronic ballast is used for providing a voltage with a varying frequency to fluorescent lamps. The electronic ballast has an inverter to supply a... |
| US-5,923,127 |
High-pressure discharge lamp with miniature discharge vessel and
integrated circuitry A discharge vessel with a ceramic wall is filled with inert gas and metal and is ignited and operated by an electronic circuit including a half bridge converter... |
| US-5,923,126 |
Fluorescent lamp electronic ballast with rapid voltage turn-on after
preheating An electronic ballast for a fluorescent lamp includes a delay triggered circuit which, upon expiration of a predetermined period during which the lamp filaments,... |
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