| Entries |
| Document | Title | Date |
|---|
| 20080211478 | Frequency Controller Resonant Converter - A resonant converter is provided which may be used for supplying power to the primary conductive path of an inductively coupled power transfer (ICPT) system. The converter includes a variable reactive element in the resonant circuit which may be controlled to vary the effective inductance or capacitance of the reactive element. The frequency of the converter is stabilised to a nominal value by sensing the frequency of the converter resonant circuit, comparing the sensed frequency with a nominal frequency and varying the effective inductance or capacitance of the variable reactive element to adjust the converter frequency toward the nominal frequency. | 09-04-2008 |
| 20080246459 | Common-Mode Surge Suppression - There is disclosed a filter for reducing electromagnetic interference generated by a power converter. The filter may include a common-mode inductor having first and second windings on a common core. The first and second windings may be connected between first and second power input lines and first and second inputs to the power converter, respectively. A series combination of a resistor and a voltage limiting device may be connected in parallel with the first winding. | 10-09-2008 |
| 20080258703 | Power Supply With Reduced Power Losses During Standby Mode - There is provided a power supply for an electrical device operable in active mode and in standby mode. The power supply comprises a transformer having a primary winding on the primary side and a secondary winding on the secondary side. The primary winding is connectable to an AC voltage supply and is arranged to comprise N turns when the electrical device is in active mode and more than N turns when the electrical device is in standby mode. Circuitry on the secondary side is arranged to provide an output voltage for the electrical device during active mode. | 10-23-2008 |
| 20080297134 | Circuit For Transmitting an Amplified Resonant Power to Load - A circuit for transferring amplified resonant power to a load is disclosed. The circuit transfers amplified resonant power, which is generated in an inductor of a conventional transformer when serial or parallel resonance of a conventional power supply is formed, to a load through the conventional transformer. The circuit comprises: a power supply for producing and supplying voltage or current; a power amplifier for generating amplified resonant power using the voltage or current; and a power transferring unit for transferring the amplified resonant power to the load using a transformer | 12-04-2008 |
| 20080303505 | Self Tuning High Voltage Power Supply - A self tuning high voltage power supply comprising a signal generator that emits a variable frequency signal, an amplifier that receives the variable frequency signal and emits an amplified variable frequency signal, and a transformer that receives and steps up the amplified variable frequency signal, creating an output voltage that corresponds to a desired voltage. A measuring unit measures the power consumed by the amplifier and provides a reading to a processing unit, which receives such reading and tunes the signal generator to emit a variable frequency signal that is at the frequency of resonance of the transformer. This causes the transformer to operate at conditions of resonance and to substantially eliminate power losses due to stray capacitance and stray inductance. As a consequence, the self tuning high voltage power supply can deliver the desired voltage with minimum power consumption. | 12-11-2008 |
| 20090015234 | Full wave linear power supply voltage boost circuit - A power supply arrangement for an electricity meter includes an input, a full wave rectifier, and a voltage doubler circuit. The input is configured to receive a periodical input signal. The full wave rectifier is coupled to the input and has a first output. The first output is coupled to a first load of the electricity meter. The voltage doubler circuit is coupled to the input and has a second output coupled to a second load of the electricity meter. The voltage doubler is configured to prevent the flow of current from the second output to the input. | 01-15-2009 |
| 20090128121 | Bi-directional power supply with isolated output - The present invention pertains to a capacitor isolated electronic power converter having a direct current power source in series with a first inductor; and a first switch for switching contact with a second inductor in series with the power source return; an output load in series with a third inductor which connects to a second switch for switching contact to a fourth inductor in series with the output load return; said third inductor and second switch for switching connect through a first capacitive coupling to the second inductor; and said fourth inductor and second switch for switching connect through a second capacitive coupling to the first inductor; wherein the first and second capacitive coupling isolate the power source from the output load. | 05-21-2009 |
| 20090146638 | Micro power converter - An object of the invention is to provide a micro power converter of a step-up and step-down type without requiring more than two semiconductor switches, without increasing the size of a semiconductor chip, and without degrading efficiency. A micro power converter comprises a micro transformer composed of a planar transformer having a structure including a conductor wound on and through a planar magnetic core, and a semiconductor chip including semiconductor switches S | 06-11-2009 |
| 20090160424 | HIGH-VOLTAGE POWER SUPPLY DEVICE AND IMAGE FORMING APPARATUS HAVING SAME - A high-voltage power supply device includes a circuit board having a piezoelectric transformer; a frequency-controlled oscillator for generating a frequency signal that drives the piezoelectric transformer in accordance with a control signal; a switching element connected to a primary side of the piezoelectric transformer for performing a switching operation in accordance with the frequency signal; a capacitor and inductor forming a parallel resonance circuit for performing a resonating operation owing to switching by the switching element; and a capacitance element connected across ground and the power-supply side of the inductor. The capacitance element and the inductor are arranged on the circuit board in such a manner that when the circuit board undergoes solder-mounting, the capacitance element and the inductor are immersed in a solder bath before the piezoelectric transformer. | 06-25-2009 |
| 20090167284 | MULTI-MAGNETIC DEVICE - In some embodiments an inductor is external to a tightly coupled transformer. The inductor is coupled in series with at least one input of the tightly coupled transformer, and the inductor does not rely on any leakage inductances of the tightly coupled transformer. The tightly coupled transformer and the inductor are included in the same package. Other embodiments are described and claimed. | 07-02-2009 |
| 20090212758 | METHOD AND APPARATUS FOR POWER CONVERSION WITH WIDE INPUT VOLTAGE RANGE - A power conversion system includes an input terminal that is arranged to be connected to a voltage source; a transformer having a first winding connected to the input terminal and a second winding connected to an output terminal of the power conversion system, either the first winding or the second winding is provided with at least three taps that are arranged to divide the first winding or the second winding into at least two sub-windings; at least one tap switch connected to the at least two sub-windings; a control circuit connected to the at least one tap switch; and at least one switch connected to the at least one tap switch. The control circuit is arranged to control the at least one tap switch to control the turn ratio of the transformer. | 08-27-2009 |
| 20090251124 | Circuit for the Generation of Two Symmetrical Buses of Tension With Respect to the Negative of the Feeding Tension - Circuit for the generation of two symmetrical buses of tension with respect to the negative of the feeding tension, comprising supply means able to supply a power step-up circuit comprising an inductor, a switch, a diode and a condenser, an LC filter being arranged in cascade to said power step-up circuit, a pair of switches with relevant re-circulation diodes being connected in cascade to said LC filter, whose peculiar aspect is that said supply means comprise a single supply source, and a circuit branch consisting of a condenser and a diode connected in series the one to the other and in parallel to said switch and said condenser of said power step-up circuit, a further inductor with diode in series being connected between the anode end of said circuit branch diode and a condenser connected symmetrically with respect to the condenser of said power step-up circuit. | 10-08-2009 |
| 20090251125 | POWER SUPPLY FOR PORTABLE RADIOGRAPHIC DETECTOR - A digital radiography detector has a two-dimensional array of photosensors disposed in rows and columns. Multiple signal traces connect to the photosensors and extend in a first direction along the two-dimensional array. A switching power supply is connected to a power source and has first and second storage inductors that are substantially matched, are electrically connected in series, include flux fields that are opposite in phase, and are aligned along the first direction of the signal traces. | 10-08-2009 |
| 20090322307 | Power Transfer Device, Power Supply Device and Power Receiving Device - A power transfer device includes: a transformer that couples a primary circuit and a secondary circuit and has a coupling constant of less than 1; and capacitances that are respectively provided in the primary circuit and the secondary circuit, and connected in series with coils that form the transformer. Circuit constants of the primary circuit and the secondary circuit are set so that the primary circuit and the secondary circuit resonate at the same frequency and a product of the square of the coupling constant, a Q value of the primary circuit and a Q value of the secondary circuit is 1. The primary circuit transfers power to the secondary circuit by means of the transformer, using a carrier wave having the resonance frequency. | 12-31-2009 |
| 20100026275 | FLUX CONTROL SYSTEM FOR ACTIVE VOLTAGE CONDITIONING - A flux control system for a three-phase active voltage conditioner that utilizes an injection transformer to apply calculated compensation voltage to a mains supply. The flux control system is configured to modify the compensation voltage to be applied to at least one primary terminal of the injection transformer so as to avoid magnetic saturation of the injection transformer. The flux control system includes magnetic flux model modules that are configured to calculate a core flux level of the injection transformer, flux offset modules that are configured to apply a first modification to the compensation voltage to gradually reduce any flux offset in the injection transformer, and peak flux modules that are configured to apply a second modification to the compensation voltage to prevent the core flux level from exceeding a preset range. | 02-04-2010 |
| 20100039092 | INDUCTOR ASSEMBLY - An inductor assembly includes a first inductor, a second inductor being magnetically coupled to the first inductor, and a third inductor being magnetically coupled to said first and second inductors. The third inductor may be connected to a variable resistor adapted for adjusting the magnetic coupling between the first and the second inductors by varying a resistance value of said variable resistor. | 02-18-2010 |
| 20100060255 | TRANSFORMER FOR REDUCING ELECTROMAGNETIC INTERFERENCE AND POWER TRANSFORM CIRCUIT APPLIED THEREIN - A transformer for reducing the electromagnetic interference (EMI) effect is disclosed. The transformer includes a bobbin; a magnetic core assembly partially sleeved by the bobbin; a first primary winding coiled around the bobbin; a secondary winding coiled on the first primary winding; and a first shielded element disposed between the first primary winding and the secondary winding for disconnecting the EMI transmission from the first primary winding to the secondary winding. The first primary winding includes a first winding portion and a second winding portion, and the first winding portion has larger EMI comparing to the second winding portion. The first winding portion of the first primary winding is adjacently disposed to the magnetic core assembly for shielding the EMI of the first primary winding by using the magnetic core assembly. The second winding portion is coiled on the first winding portion and adjacently disposed to the secondary winding for increasing the electromagnetic coupling rate of the first primary winding and the secondary winding. In addition, a power transform circuit applied in the transformer for reducing the EMI effect is also disclosed. The power transform circuit includes a switch, a power input for receiving a power signal; and a transformer electrically connected to the power input and the switch, for receiving and transforming the power signal. | 03-11-2010 |
| 20100109634 | DESCRIPTION ELECTRO-AGEEB ELECTRICAL SAFETY DEVICE - ELECTRO-Ageeb Electrical Safety Device is a new invention that changes the dangerous electricity into a safe one. The new invention allows any human being, animal or any living body to touch live electrical terminals without feeling shock or exposed to any harm that usually happens in the ordinary electricity that is used everywhere nowadays. The invention is based on the principal of energy conversion. It converts the electric supplied by normal electric sources into a magnetic energy then indirectly converts the magnetic energy into a safe electric energy. The invented device can be installed in the main source of houses, public buildings, factories, schools, etc. to provide them with a safe current that protect people, machineries and all the building from any harm that could be happen from the normal electricity including fire. The new device has undergone through a series of experiments and tests and in all of them proves to be reliable in providing safety as well as assuring the continuity of electric supply. | 05-06-2010 |
| 20100123450 | INTERLEAVED LLC POWER CONVERTERS AND METHOD OF MANUFACTURE THEREOF - A system is provided having a first LLC power converter and a second LLC power converter. The first LLC power converter comprises a first LLC voltage source. The second LLC power converter also comprises a second LLC voltage source. The first LLC power converter also comprises a first resonant inductor, a first magnetic inductor, and a first resonant capacitor coupled to the first voltage source of the first LLC power converter. The second LLC power converter comprises a second resonant inductor, a second magnetic inductor, and a second resonant capacitor coupled to the second voltage source of the second LLC power converter. The first LLC power converter and the second LLC power converter are both magnetically couplable to a common load. A resonance of the first LLC power converter substantially matches a resonance of the second LLC power converter. | 05-20-2010 |
| 20100134088 | Inverter circuit and method for supplying an inverted voltage - The present invention discloses an inverter circuit and a method for supplying an inverted voltage. The method for supplying an inverted voltage comprises: providing a power switch and an inductor electrically connected with each other; driving the gate of the power switch by a driver gate, such that an input voltage is converted to a negative voltage supplied to a load; and providing a low operation voltage to the driver gate according to the negative voltage. | 06-03-2010 |
| 20100141234 | TRANSFORMER WITH HIGH VOLTAGE ISOLATION - A high-voltage isolation transformer utilizing balun cores for transferring an alternating current signal from a first circuit to an output circuit, and a high voltage generator, such as a Cockcroft-Walton multiplier to apply a high direct current voltage bias with a high degree of voltage isolation between the first circuit and the output circuit. Multiple balun core transformers can be used in order to reduce the voltage rise between each individual transformer. | 06-10-2010 |
| 20100141235 | MAGNETIZING INRUSH CURRENT SUPPRESSION DEVICE AND METHOD FOR TRANSFORMER - To suppress the magnetizing inrush current occurring when supplying power of three phases of the transformer are performed simultaneously using three single-phase circuit breakers or a non-phase segregated operation-type circuit breaker, without providing a circuit breaker with a resistor or other equipment. A magnetizing inrush current suppression method for transformer suppresses a magnetizing inrush current occurring at the start of energizing of a three-phase transformer | 06-10-2010 |
| 20100188068 | Solid State High Power Piezokinetic Transformer and Method Thereof - Disclosed is high efficiency power multiplying piezo transformer architecture having at least one piezo transformer assembly, the at least one piezo transformer assembly including of a plurality of piezo transformers circuits including a first outer and last outer piezo transformer circuits, each of the piezo transformer circuits having a primary side having a positive and negative electrode or terminal and a secondary side having a positive and a negative electrode or terminal. Each of the plurality of piezo transformer circuits forming the piezo transformer assembly is coupled to an adjacent piezo transformer circuit wherein the positive electrode of the primary side of each the piezo transformer circuit is coupled to a first node and each negative electrode of the primary side of each piezo transformer circuit is coupled to a second node. A signal conditioning component having first and second inputs, the positive electrode of the secondary side of the first outer piezo transformer circuit of the piezo transformer assembly coupled to the first input of the signal conditioning (rectifier) circuit and the negative electrode of the secondary side of the last outer piezo transformer of the piezo transformer assembly. The negative electrode of the first outer piezo transformer of the piezo transformer assembly is coupled to the positive electrode of a piezo transformer of the plurality and the negative electrode of the secondary side of a piezo transformer circuit of the plurality being coupled to the positive electrode of the second outer piezo transformer circuit. | 07-29-2010 |
| 20100207599 | ELECTRIC MOTOR DRIVE UNIT FOR ON-LOAD TAP-CHARGERS - A motor drive cabinet in an on-load tap-changer, including an electric motor drive unit and a control unit. The electric motor drive unit includes an electric motor, a gearbox and a position transmitter. The control unit is arranged to control an outgoing axis outgoing from the motor drive cabinet by feeding the electric motor through direct connection to drive the outgoing axis through the gearbox. The position transmitter is arranged to detect movement and position of the outgoing axis and to provide indications thereof to the control unit. The motor drive cabinet is sealed during use with the electric motor drive unit and control unit within the sealing. | 08-19-2010 |
| 20100237849 | SIGNAL TRANSFORMER - A fast current generating element in a current generating unit, used by the present invention, provides a large current for accelerating the switching of transistor switches when the transistor switches are switched. The fast current generating element includes a capacitor to provide a large differential current when a voltage level transiently changes during the switching of the transistor switches. Therefore, a transient response time of a signal transformer is shortened. | 09-23-2010 |
| 20110012583 | Use pairs of transformers to increase transmission line voltage - A smart link in a power delivery system includes an insulator, which electrically isolates a power line, and a switchable conductance placed in parallel with the insulator. The switchable conductance includes switchgear for sourcing, sinking, and/or dispatching real and/or reactive power on the power line to dynamically in response to dynamic loading, transient voltages and/or currents, and phase conditions or other conditions on the power line. | 01-20-2011 |
| 20110204870 | TRANSFORMER INRUSH CURRENT SUPPRESSION APPARATUS WITH FUNCTION OF DETERMINING TARGET CLOSING PHASE OF THREE-PHASE TRANSFORMER BASED ON PRE-ARC CHARACTERISTIC AND VARIATION IN CLOSING TIME OF THE THREE-PHASE CIRCUIT BREAKER - A target closing phase determining circuit determines energization flux errors in respective phases and respective closing phases of a first phase, and determines a target closing phase of the first phase so as to minimize an evaluated value related to determined energization flux errors in the respective phases. Each of the energization flux errors is the maximum value of absolute values of center values of transformer fluxes generated in a static state after energization. The target closing phase determining circuit determines the energization flux errors based on residual flux values for the first to third phases of a three-phase power supply, respectively, a pre-arc characteristic and a closing time variation characteristic of a three-phase circuit breaker, a connection condition of windings of a three-phase transformer, to which the three-phase circuit breaker is connected, and voltage phase differences among the phases of the three-phase power supply. | 08-25-2011 |
| 20110221420 | CONTROL METHOD FOR SINGLE-PHASE GRID-CONNECTED LCL INVERTER - A method of controlling the grid-side current of a single-phase grid-connected converter having an LCL filter connected between the output of the converter and the grid. The method includes measuring a grid voltage (v | 09-15-2011 |
| 20110241647 | CONTROL DISTRIBUTION TRANSFORMER AND METHOD OF MAKING SAME - A method, system, and apparatus including a distribution transformer having a communications module. The distribution transformer is configured to convert a first high voltage electricity from a high voltage distribution line to a first low voltage electricity and convey the first low voltage electricity along a low voltage line to an electrical device. The communications module is configured to transmit a load reduction request along the low voltage line to the electrical device. | 10-06-2011 |
| 20120256614 | TECHNIQUE FOR LIMITING FAULT CURRENT TRANSMISSION - A technique for limiting fault current transmission is disclosed. In one particular exemplary embodiment, the technique may be realized with a fault current limiter comprising a core having at least first easy axis and a hard axis; and a first coil wound around the core, the first coil configured to carry current. In some embodiment, the easy axis of the core may be aligned with H fields generated by the current transmitted through the first coil. | 10-11-2012 |
| 20120306471 | METHOD AND APPARATUS FOR PERFORMING ON-LOAD MECHANICAL SWITCHING OPERATIONS - An electrical device comprising: a first current path having a primary switch therein, and means for coupling to an electrical supply; and a diversionary current path having semiconductor switching means therein, the semiconductor switching means being operable to bypass the primary switch; the device being arranged such that, in use, a first current flowing from the supply along the first current path can be diverted, on the operation of the semiconductor switching means, along the diversionary current path, bypassing the primary switch; wherein the diversionary current path comprises a controllable electrical supply operable to supply a second current whilst the semiconductor switching means are in a state of conduction, the second current being such as to cause substantially zero current to flow through the primary switch, such that the primary switch can then be opened under a condition of substantially zero load current. A corresponding method of operating a mechanical switch in such a device is also provided. The disclosure further provides a controllable electrical supply comprising: an electrical source; an amplifier having two output terminals and comprising a plurality of semiconductor devices; and control logic arranged to operate the amplifier such that it can selectively present both current and voltage source behaviour at the terminals. | 12-06-2012 |
| 20120306472 | Transformer Driver Circuit - Disclosed is a transformer driver circuit, which in one aspect comprises a transformer comprising a primary winding and a secondary winding and a transformer tap, the latter electrically connected to a first voltage source. The primary winding is electrically connected at both ends to respective unipolar controllable current sinks that form part of an integrated circuit. The circuit operates by each current sink selectively sinking current from the end of the primary winding to which it is connected so as to cause current to flow in the secondary winding in a push-pull fashion. The circuit further comprises a load electrically connected to the secondary winding; and protection circuitry operative to protect the integrated circuit from input levels greater than it can handle. In another aspect there is a similar transformer drive circuitry which may or may not be partly on an integrated circuit and have protection circuitry. This aspect comprises control circuitry that provides analogue control signals to the current sinks so as to cause them to sink current in a substantially linear dependence on the signal amplitude of said analogue control signals. | 12-06-2012 |
| 20130049730 | DC-DC CONVERTER - A DC-DC converter includes an insulating substrate with an inductor provided on the top surface thereof, a switching control IC provided therein, and a ground electrode pattern provided on the bottom surface thereof. The ground electrode pattern includes a first pattern and a second pattern separated from each other and a bridge pattern that connects the first and second patterns to each other. A capacitor and the switching control IC is connected to each of the first and second patterns. The bridge pattern faces the inductor and has a smaller width than that of the first and second patterns. | 02-28-2013 |
| 20130069619 | INPUT DETECTION DEVICE - When a first driving signal is applied from a waveform output unit, detection current with a high frequency than a natural frequency of a vibrator is applied to a coil of a vibration generation unit. When the current fluctuates, induction power due to a counter-electromotive force is inducted to a external casing of the vibration generation unit. The induction power is changed in an input unit, and when a level of an output due to the change thereof greatly fluctuates, a second driving signal is output from the waveform output unit, and logical sum of the first driving signal and the second driving signal is applied to a driving circuit. At this time, a vibration current flows to the coil, and the vibrator vibrates by the natural frequency. | 03-21-2013 |
| 20130093408 | Asymmetrical Coupled Inductors And Associated Methods - An asymmetrical coupled inductor includes a first and a second winding and a core. The core is formed of a magnetic material and magnetically couples together the windings. The core is configured such that a leakage inductance value of the first winding is greater than a leakage inductance value of the second winding. The coupled inductor is included, for example, in a multi-phase DC-to-DC converter. A DC-to-DC converter including a symmetrical coupled inductor includes at least one additional inductor electrically coupled in series with one or more of the coupled inductor's windings. A controller for a DC-to-DC converter including a first phase having an effective inductance value greater than an effective inductance value of a second phase is configured to shut down the second phase while the first phase remains operational during a light load operating condition. | 04-18-2013 |
| 20130119969 | Utilizing an On-Chip Transformer to Generate Quadrature Signals - Aspects of a method and system for generating quadrature signals utilizing an on-chip transformer are provided. In this regard, a pair of phase-quadrature signals may be generated from a single-phase signal via a transformer, one or more variable capacitors, and one or more variable resistors integrated on-chip. The transformer may comprise a plurality of loops fabricated in a plurality of metal layers in the chip. Each of the one or more variable capacitors may comprise a configurable capacitor bank and each of the one or more variable resistors may comprise a configurable resistor bank. The one or more capacitor banks may be programmatically configured on-chip, based on a frequency of the single-phase signal. The one or more resistor banks may be programmatically configured on-chip, based on a frequency of said single-phase signal. | 05-16-2013 |
| 20130141074 | CONTROL DISTRIBUTION TRANSFORMER AND METHOD OF MAKING SAME - A distribution transformer comprises a sensor system and a communications module. The distribution transformer is configured to convert a first high voltage electricity from a high voltage distribution line to a first low voltage electricity and convey the first low voltage electricity along a low voltage line to an electrical device. The sensor system is configured to determine a temperature of the distribution transformer, and the communications module is configured to transmit a load reduction request along the low voltage line to the electrical device based on the temperature of the distribution transformer. | 06-06-2013 |
| 20130162239 | ELECTRONIC POWER TRANSFORMER - A multi-phase electronic power transformer includes a set of primary windings, wherein each primary winding is configured to couple with an input voltage. The transformer includes a pair of primary switching devices that includes a first primary switching device coupled to a first end of each primary winding and a second primary switching device coupled to a second end of each primary winding distinct from the first end of each primary winding. The transformer includes a set of secondary windings, wherein each secondary winding is configured to inductively couple with a respective primary winding and to output a voltage. The transformer includes a pair of secondary switching devices that includes a first secondary switching device coupled to a first end of each secondary winding and a second secondary switching device coupled to a second end of each secondary winding distinct from the first end of the each secondary winding. | 06-27-2013 |
| 20130229167 | MULTICHANNEL DC-DC CONVERTER - In a multichannel DC-DC converter that reduces radiation noise to a minimum, a wiring line between the coil conductor of a channel having the smallest load current and the switching IC, among the coil conductors defining a plurality of channels, is the longest connection wiring line, such that a channel having the smallest load current is connected to a wiring line that is most likely to radiate noise and radiation noise is reduced to a minimum. A connection wiring line connected to a coil conductor having the largest load current among the plurality of coil conductors is the shortest connection wiring line. A channel having the largest load current is connected to a wiring line that is least likely to radiate noise and, as a result, radiation noise is further reduced. | 09-05-2013 |
| 20130257410 | LOW FREQUENCY CONVERTERS HAVING ELECTROCHEMICAL CAPACITORS - In one embodiment of the invention, a low frequency converter is described that includes a first electrochemical capacitor to charge to an input voltage and a second electrochemical capacitor that is coupled to the first electrochemical capacitor. The second electrochemical capacitor is associated with an output voltage of the low frequency converter. Each electrochemical capacitor may have a capacitance of at least one millifarad (mF) and a switching frequency that is less than one kilohertz. | 10-03-2013 |
| 20130293216 | LAMINATED INDUCTOR ELEMENT - A laminated inductor element includes a laminated substrate including a plurality of layers including a magnetic layer, an inductor including coil conductors provided between layers of the laminated substrate and connected in a lamination direction of the laminated substrate, and a pair of non-magnetic layers laminated on the laminated substrate so as to sandwich the laminated substrate in the lamination direction. The non-magnetic layers include cover layers made of low temperature co-fired ceramics. | 11-07-2013 |
| 20130328543 | MINIATURIZE VOLTAGE-TRANSFORMING DEVICE - A miniaturized voltage-transforming device includes a first circuit board and a second circuit board parallel to and separated from each other by a predetermined distance so that there is no physical connection therebetween, and a transformer having a plurality of primary-side pins and a plurality of secondary-side pins, wherein the transformer is located beside the first circuit board and the second circuit board, and has its primary-side pins and secondary-side pins directly or indirectly connected to the first circuit board and the second circuit board physically, so that the transformer is electrically connected to the first circuit board and the second circuit board via the primary-side pins and the secondary-side pins. | 12-12-2013 |
| 20130335059 | FULLY INTEGRATED VOLTAGE REGULATORS FOR MULTI-STACK INTEGRATED CIRCUIT ARCHITECTURES - A voltage regulator for one or more dies in a multi-stack integrated circuit includes an inductor located on a die, a voltage controller that is electrically coupled to the inductor and is also located on the die, and a capacitor that is electrically coupled to the inductor and the voltage controller and is also located on the die. The inductor defines an interior space and the voltage controller and the capacitor are located within the interior space of the inductor. The inductor can be a lateral inductor or a through layer via inductor. The multi-stack integrated circuit may have multiple dies. A voltage controller may be electrically coupled to each of the dies, although it may be located on only one of the dies. Alternatively, separate voltage controllers may be electrically coupled to each of the multiple dies and may be located on each of the respective dies. | 12-19-2013 |
| 20140049246 | POWER SUPPLY ARRANGEMENT WITH A TRANSFORMER HAVING A TRANSFORMER CORE WITH LEGS ARRANGED IN A POLYGON - Power supply arrangement with first transformer (T | 02-20-2014 |
| 20140077792 | HIGH SPEED CHARGE CONTROL FOR POWER SWITCHING DEVICES - Disclosed are systems, devices, apparatus, circuits, methods, and other implementations, including a system that includes one or more power switching devices that receive power delivered by a power unit, and a high-speed charge control circuit electrically coupled to the one or more power switching devices. The high-speed charge control circuit includes an optocoupler coupled to the power unit and further coupled to a first switching device of the high-speed charge control circuit, the first switching device actuated based on output of the optocoupler to establish an electrical path to discharge at least a portion of electrical charge present at least on the one or more power switching devices when power delivery from the power unit is stopped. | 03-20-2014 |
| 20140084900 | LOW-CONSUMPTION AND HIGH-EFFICIENCY ENERGY-SCAVENGING INTERFACE, METHOD FOR OPERATING THE ENERGY-SCAVENGING INTERFACE, AND SYSTEM COMPRISING THE ENERGY-SCAVENGING INTERFACE - An energy-scavenging interface receives an input signal from a transducer and supplies an output signal to a load. A switch is connected between the transducer and a reference node, and a diode is connected between the transducer and the load. A control circuit closes the switch for a time interval to permit energy storage in the transducer. A scale copy of a peak value of stored electric current is obtained. The switch is opened when the time interval elapses and the stored energy exceeds a threshold. The stored energy is then released to supply the load through the diode. The switch remains open as long as the value of current in the output signal exceeds the value of the scaled copy of the peak value. | 03-27-2014 |
| 20140103901 | ELECTRICAL POWER MULTIPLICATION - A power multiplier and method are provided. The power multiplier includes a power multiplying network that is a multiply-connected, velocity inhibiting circuit constructed from a number of lumped-elements. The power multiplier also includes a launching network, and a directional coupler that couples the launching network to the power multiplying network. The power multiplier provides for power multiplication at nominal power generation frequencies such as 50 Hertz, 60 Hertz, and other power frequencies, in a compact circuit. | 04-17-2014 |
| 20140125308 | REACTOR - To provide a reactor with which resin can fully be packed between a core and a coil with ease, and in which the core can easily be handled when the reactor is manufactured. | 05-08-2014 |
| 20140139202 | ENHANCED LEAKAGE COMMON MODE INDUCTOR - In some embodiments, a common mode inductor comprises a principal core, and a leakage boosting core located within a threshold distance of the principal core in order to enhance a leakage flux of the inductor. In some embodiments, a circuit comprises a power converter, and a common mode inductor coupled to the power converter, the common mode inductor comprising a principal core and a leakage boosting core located within a threshold distance of the principal core wherein the threshold distance is selected to control a leakage flux of the inductor. | 05-22-2014 |
| 20140232369 | ISOLATED DATA ACQUISITION - A data acquisition circuit may isolate control and data decode logic elements from data acquisition elements such as sensors through the use of a single transformer. A control signal may be supplied to a primary winding of a transformer by alternately opening and closing a push switch and a pull switch. First and second analog to digital converter circuits may receive analog signals and convert them to data signals, which may appear on the secondary winding of the transformer. Data signals may be substantially received by a data demodulator circuit on the primary side of the data acquisition circuit. The data demodulator circuit may compare a voltage associated with the received signal to a threshold voltage and output a result of the comparison to the control and data decode logic element. | 08-21-2014 |
| 20140266144 | ON-CHIP POWER CONVERTER CIRCUIT AND ON-CHIP POWER SUPPLY USING THE POWER CONVERTER CIRCUIT - An on-chip power converter and an on-chip switching power supply implemented using a film bulk acoustic resonator (FBAR) in place of an inductor. This MEMS device offers high inductance density and high Q factor. FBARs can be conveniently fabricated in a CMOS compatible process. FBARs also shows better EMI results than conventional inductors. | 09-18-2014 |
| 20140266145 | POWER FLOW CONTROL APPARATUS - A power flow control apparatus comprising a current distribution circuit arranged to distribute an input current into a plurality of branches such that the input current is distributed into a plurality of individual branch currents; wherein each of the plurality of branches includes an inductive arrangement arranged to form an inductive coupling with an associated inductive arrangement of at least one other associated branch, and a plurality of compensator units in electrical communication with the plurality of branches, wherein each compensator unit is arranged to deliver a branch compensating voltage relative to the branch current. | 09-18-2014 |
| 20140292303 | DC/DC CONVERTERS - A method for transferring power between two DC circuits, each circuit being bipolar or connected at the midpoint thereof, involves: coupling the high voltage bus across a pair of inductors, arranged in parallel; coupling the low voltage bus across the pair of inductors; coupling the high voltage bus, the low voltage bus and the inductors by active switches and diodes, to provide for: (i) a storage configuration, wherein energy is transferred from one of the buses and stored in the inductors; and (ii) a release configuration, wherein energy is released from the inductors and transferred to the other of the buses. | 10-02-2014 |
| 20140300338 | CIRCUITS AND METHODS FOR CURRENT TO VOLTAGE CONVERSION - Circuits and methods for converting a current to an output voltage are disclosed herein. An embodiment of the circuit includes a first switch connected between a source of current and a first node and a second switch connected between the first node and a common voltage. The circuit also includes a first controller for controlling the state of the first switch and a second controller for controlling the state of the second switch. A capacitor is coupled to the first node; the voltage on the capacitor is the output voltage. When the second switch is open, the capacitor charges, and when the second switch is closed, the capacitor does not charge. The current flows through the primary inductance of a transformer. | 10-09-2014 |
| 20150035515 | DC-to-DC Converter Input Stage with Capacitive Current Limit - A power converter may have an input stage that includes a pair of transformer coils, switching circuitry to energize the pair of transformer coils according to an input supply voltage provided by an input source, and a limiting circuit coupled between the pair of transformer coils to cause the input stage to stop drawing current from the input source once the amount of charge drawn from the input source reaches a specific value. An output stage of the power converter may receive energy from the pair of transformer coils, and convert the received energy into an output supply voltage. The pair of transformer coils may continue providing energy stored in a leakage inductance of the pair of transformer coils to the output stage for at least a period of time, once the limiting circuit has caused the input stage to stop drawing current from the input supply. | 02-05-2015 |
| 20150123644 | TRANSFORMER FOR POWER LINE COMMUNICATION - Disclosed is a transformer for power line communication, capable of performing power line communication without being influenced by voltage attenuation due to voltage conversion. The transformer for power line communication includes: a transforming unit configured to convert a high primary voltage into a low secondary voltage, or convert a low secondary voltage into a high primary voltage; a separation unit configured to separate a data signal from a primary voltage input thereto; and a coupling unit configured to couple the data signal with the low secondary voltage. | 05-07-2015 |
| 20150123645 | POWER SUPPLY UNIT HAVING HEAT DISSIPATION STRUCTURE - A power supply unit includes: a transformer; a primary component that constitutes a primary circuit connected to the transformer; a secondary component that constitutes a secondary circuit connected to the transformer; a choke coil; a base plate including the transformer, the primary component, the secondary component and the choke coil; a metal plate connected to the base plate; and a connecting member connecting the primary component and the transformer. The primary component and the transformer are laminated to constitute a first laminating body. A part of the metal plate is disposed closer to the transformer than the primary component, and the metal plate and the transformer are electrically connected by a ground line. A connection point between the ground line and the metal plate is located closer to the transformer than the primary component. | 05-07-2015 |
| 20150326136 | MAGNETIC FIELD ENERGY HARVESTING DEVICE - A magnetic field energy harvesting device may include an inductor and a controller. The inductor may include two inductor windings connected to each other in series, configured in winding directions and orientations to generate two voltages relative to the middle tap of inductor and out of phase with each other. The controller may switch the two voltages and may generate an approximately constant DC output voltage by alternating switching on and off switches. | 11-12-2015 |
| 20160020001 | ELECTRICAL POWER TRANSMISSION SYSTEM AND METHOD - A power carrier transmits an electrical current to and from a load. The carrier has a set of wires carrying electricity in parallel to the load and another set of wires carrying the electricity back in parallel from the load. The wires are organized with equal numbers of wires from each set grouped around a junction alternatingly, so that as a result the magnetic fields created by the electricity flowing through the two sets of wires cancel each other out in the junction. The carrier may have several junctions in a rectangular matrix pattern or a hexagonal dose-packed pattern, or other patterns, e.g., octagonal, which may be combined with junctions with different numbers of wires. | 01-21-2016 |
| 20160151836 | COMPOSITE MAGNETIC MATERIAL, COIL COMPONENT USING SAME, AND POWER SUPPLY DEVICE | 06-02-2016 |
| 20160204708 | TRANSFORMER | 07-14-2016 |
