85results about How to "High power transmission" patented technology

Communication between a remote locator and a transponder is used to determine the relative position of the transponder. The transponder and locator each include a transmitter and a receiver. The locator transmits an inquiry in the form of a relatively powerful cyclically encoded signal with repetitive elements, uniquely associated with a target transponder. Periodically, each transponder correlates its coded ID against a possible inquiry signal, determining frequency, phase and framing in the process. Upon a match, the transponder transmits a synthesized response coherent with the received signal. The locator integrates multiple cyclical response elements, allowing low-power transmissions from the transponder. The locator correlates the integrated response, determines round-trip Doppler shift, time-of-flight, and then computes the distance and angle to the transponder. The transponder can be wearable, bionically implanted, or attached to, or embedded in, some object.

A resonant, contactless, RF power coupling suitable for high power-density applications and for use in an ocean environment is disclosed. In the illustrative embodiment, the power coupling includes a transmit coupling and a receive coupling, each of which include a resonant element. A high-powered RF generator is coupled to the transmit coupling and a rectifier circuit is coupled to the output coupling. Each of the resonant elements is disposed in its own electrically-conductive canister and advantageously potted in an appropriate insulating dielectric. Each canister has an open end to facilitate inductive coupling between the two resonant elements. In order to exclude seawater from the interface between the canisters, a seal of compliant material is disposed therebetween.

A control apparatus for a vehicular drive system including a continuously-variable transmission portion operable as an electrically controlled continuously variable transmission, and a step-variable transmission portion, the continuously variable transmission portion having a differential mechanism operable to distribute an output of an engine to a first electric motor and a power transmitting member, and a second electric motor disposed in a power transmitting path between the power transmitting member and a drive wheel of a vehicle. The control apparatus including a differential-state limiting device provided in the differential mechanism, and operable to limit a differential function of the differential mechanism, for limiting an operation of the continuously-variable transmission portion as the electrically controlled continuously variable transmission, and an electric-motor control portion for controlling a drive-force assisting operation to generate an assisting drive force to drive the vehicle during a shifting action of the step-variable transmission portion, in different manners depending upon whether the continuously-variable transmission portion is placed in a continuously-variable shifting or a non-continuously-variable shifting state.

A powershift transmission in a motor vehicle is arranged between a prime mover and driven wheels of the motor vehicle for transmission of propulsive power and selection of different gear speed ratios. The powershift transmission includes at least two factional clutches for alternatively engaging at least two input shafts, a main transmission, a range section and an output shaft. A countershaft in the powershift transmission is rotationally connectable to the output shaft in order to establish a by-pass torque path, passing by the range section, and in which propulsive power can be transferred when the range section is gear shifted between different range speed ratios.

The invention provides an unbalance compensation control method of a cascaded power electronic transformer, comprising a control component and a transformer, wherein the transformer is composed of aninput rectifier stage, an isolation stage and an output inverter stage. The input stage is a three-phase star-connected cascaded H-bridge rectifier, the isolation stage is a plurality of independent dual-active-bridge converters, and the output stage is a single-phase PWM inverter. The control method of the present invention includes an input rectifier stage stratification control unit, a voltageclosed loop control unit of an isolation stage and a constant voltage and current sharing control unit of an output inverter stage. The input rectifier stage stratification control unit, is further divided into an upper control unit and a lower control unit, wherein the upper control unit is composed of a coordinate transformation, a positive sequence decoupling control and a negative sequence current suppression, and the lower control unit is an in-phase voltage sharing control. The control method provided by the invention can simultaneously solve the negative sequence current compensation problem of the PET when the voltage at the network side and the three-phase load are unbalanced, thereby promoting the application of the power electronic transformer in the engineering practice.

In accordance with the present invention, there is provided multiple embodiments of a concentrated photovoltaic receiver package or module. In each embodiment of the present invention, the module comprises a leadframe including a first section and a second section disposed in spaced relation to each other. Mounted to the first section of the leadframe is a receiver die. The receiver die is electrically connected to both the first and second sections of the leadframe. In one embodiment of the present invention, the receiver die is electrically connected to the second section of the leadframe by a plurality of conductive wires. In another embodiment of the present invention, the receiver die is electrically connected to the second section of the leadframe by a conductive bonding material. Portions of the leadframe may optionally be covered by a molded body which can be used to define an alignment feature for a light concentrating device such as a light guide or optical rod.

A pair of foils are pivotably coupled to a nacelle. The nacelle is pivotably coupled to a mast extending down from to a frame and below a water surface. A push rod oscillates, causing the nacelle to experience a heaving motion, in turn causing the foils to flap up and down. The push rod is driven by a power plant such as a human rider. Angles of attack for the foils are actively controlled to optimize lift and propulsion forces provided by the foils to cause the water craft to move over the water. A steering fin is also provided for heading control of the water craft. A control system for separate angles of attack for the foil sends appropriate information to servo motors which cause the foils to rotate relative to the nacelle to achieve optimal angles of attack relative to the particular position of the nacelle at any given moment.

The invention provides devices and systems, as well as associated methods of using them, that employ a remote Dicke switching element—i.e., distal to a radiometer. The devices, systems, and methods are suitable for both diagnostic and therapeutic applications in a wide variety of tissues.

The present invention is generally directed to a method of making chalcogenide glasses including holding the melt in a vertical furnace to promote homogenization and mixing; slow cooling the melt at less than 10° C. per minute; and sequentially quenching the melt from the top down in a controlled manner. Additionally, the present invention provides for the materials produced by such method. The present invention is also directed to a process for removing oxygen and hydrogen impurities from chalcogenide glass components using dynamic distillation.

A system for transmitting electric power into a bore hole, the system having an electric transmission line extending through the bore hole between an electric power source and a receiving station, wherein the receiving station includes frequency increasing means for increasing the frequency of the electric current supplied through the electric transmission line, voltage converter means for changing the voltage of the electric current supplied to it via the frequency increasing means, connecting means for supplying the frequency-increased electric current to the voltage converter means, and means for connecting an electric load to the receiving station.

A magnetic resonance wireless power transmission device capable of adjusting resonance frequency is disclosed. A wireless power transmission device according to an embodiment of the present invention comprises: a power amplifier for amplifying a wireless power signal using a driving frequency signal; a resonator for configuring a resonance tank and wirelessly transmitting, through magnetic resonance, the wireless power signal output from the power amplifier using a resonance frequency of the resonance tank; and a resonance control unit for controlling a duty ratio using a frequency applied to the resonator or a frequency signal generated by the resonator and adjusting the resonance frequency of the resonator.

A control apparatus for a vehicular drive system including a first transmission portion having a differential mechanism operable to distribute an engine output to a first electric motor and a power transmitting member, and a second electric motor disposed in a power transmitting path between the power transmitting member and a drive wheel; and a second transmission portion constituting a part of the power transmitting path. The control apparatus includes a switching device provided in the differential mechanism and operable to selectively place the first transmission portion in a continuously-variable shifting state and in a non-continuously-variable shifting state, rendering the first transmission portion respectively capable or not capable of operating as an electrically controlled continuously variable transmission; and a transmission controller operable to change a speed ratio of the second transmission portion, concurrently with switching of the first transmission portion between the continuously-variable shifting state and the non-continuously-variable shifting state.

The invention discloses a PLC-controlled spray dust removal and haze removal vehicle with a vector nozzle, which comprises a six-wheeled vehicle chassis, a front vector cyclone sprayer, a first worm wheel, a first worm, a first plunger hydraulic motor and the like. The front vector cyclone sprayer is fixedly installed on the upper part of the first worm wheel through a bracket. The first worm gear rotates vertically and is installed on the boss on the lifting platform. The first worm is installed on the support of the lifting platform for lateral rotation, and cooperates with the first worm wheel. The invention can achieve large power transmission in a small space, so that the high-speed fan can easily reach a very high speed and is stable and noiseless. By setting the vector nozzle, the front vector cyclone sprayer and the rear vector cyclone sprayer can be sprayed The direction and angle can be adjusted more precisely, so as to achieve better dust removal effect.

The invention discloses a method for controlling electric vehicle wireless dynamic charging system, and belongs to the technical field of electric vehicle wireless charging. The method includes the steps that a transmitter end and a receiver end are controlled simultaneously, sliding mode PID control is adopted to a PFC converter at the transmitter end, and fuzzy algorithm control is conducted over a DC-DC converter at the receiver end, and information exchange is realized through a wireless communication module. According to the method for controlling electric vehicle wireless dynamic charging system, the rational allocation of system resources can be realized, harmonic waves of a power grid is reduced, the power quality is improved, the power loss in the power transmission process is saved, magnetic leakage is reduced, the system transmission efficiency is improved, the stability of electric vehicle dynamic charging is ensured, and safety and reliability are improved.