108results about How to "Maximum output power" patented technology

A Multi-Mode Multi-Band (MMMB) radio frequency (RF) power amplifier circuit operating at multiple frequency bands. The power amplifier circuit comprises a single wideband power amplifier having high output impedance which is configured to be equal to a load impedance of the load connected to the power amplifier circuit. A bias voltage applied to the wideband power amplifier is changed from a first value to a second value to provide a predetermined output power of the wideband power amplifier to the load with the output impedance of wideband power amplifier being equal to the load impedance. The power amplifier circuit also includes an individual harmonic filter for filtering each frequency band independently.

An electronically programmable multimode circuit is described. More particularly, the present invention is an electronically programmable multimode circuit that includes a first path and a second path wherein a mode and a signal directional flow direction is controlled through the selective biasing of the first path and the second path. A multimode circuit is produced that contains modes such as a phase shifter mode, an IQ modulation mode, an amplifier mode, a mixer mode, and a multiplier mode.

A multimode power module system automatically selects one of multiple operating modes to maximize power transfer in varying conditions by using direct energy transfer, boost peak power tracking, buck peak power tracking, charge limit, and eclipse standby modes with reduced switching losses, reduced component count, and scalability through connections of multiple power modules system.

A design structure embodied in a machine readable storage medium for designing, manufacturing, and / or testing a design of a decision feedback equalizer (DFE) Clock-And-Data Recovery (CDR) architecture that utilizes / produces one sample-per-bit in the receiver and reduces bit-error-rate (BER) is provided. The design generally includes a receiver circuit. The receiver circuit generally includes a decision feedback equalizer (DFE) that produces one sample per bit, and means for automatically self-adjusting the DFE to enable an eye centering process by which peak energy is maintained within the receiver circuit when phase error is a minimum.

Disclosed are a receiver circuit, method and design architecture of a decision feedback equalizer (DFE) Clock-And-Data Recovery (CDR) architecture that utilizes / produces one sample-per-bit in the receiver and reduces bit-error-rate (BER). An integrating receiver is combined with a decision feedback equalizer along with the appropriate (CDR) loop phase detector to maintain a single sample per bit requirement. The incoming voltage is converted to a current and connected to a current summing node. Weighted currents determined by the values of previously detected bits and their respective feedback coefficients are also connected to this node. Additionally, the summed currents is integrated and converted to a voltage. A sampler is utilized to make a bit decision based on the resulting voltage. After sampling, the integrator is reset before analysis of the next bit. The necessary amplification is achieved by maximizing the sensitivity of the latch, using integration in front of the data latch.

A power amplifier includes: a distortion compensating circuit that causes a bias circuit to have an output impedance so that a subsequent block bipolar transistor for signal amplification-use has a maximized saturated output power; and a distortion compensating circuit that causes a bias circuit to have an output impedance so that a distortion of an output power of the power amplifier 1 with respect to an input power is canceled by a distortion characteristic of an output power with respect to an input power of the subsequent block bipolar transistor for signal amplification-use which has a maximized saturated output power and a distortion characteristic of an output power with respect to an input power of the preceding block bipolar transistor for signal amplification-use. This makes it possible to provide a power amplifier that allows reduction in saturated output power brought by realization of a highly efficient low-distortion power amplifier.

The invention relates to a thermal treatment applicator (19) for the deposition of thermal energy within tissue of a body (10) of a patient. The applicator (19), comprises: a plurality of RF antennae (20) for radiating a RF electromagnetic field toward the body (10);—a plurality of RF power amplifiers (21) supplying RF signals to the RF antennae (20), wherein each RF power amplifier (21) comprises a transistor and an output matching network (22) transforming the output impedance of the transistor into a low impedance value. Moreover, the invention relates to a MR imaging guided therapy system (1).

The invention discloses a resonant dual-power-supply aircraft electromagnetic transmission device. A high-power main circuit module comprises an alternating-current generator set, a direct-current onboard power supply, a power-conversion main circuit, a resonant main circuit and a transmitter circuit; the alternating-current generator set and the direct-current onboard power supply are in parallel connection with the power-conversion main circuit, the power-conversion main circuit converts onboard power supply direct current or generator set alternating current into high-frequency alternating current through a high-frequency inverter bridge or a controllable rectifier bridge-high-frequency inverter bridge, the high-frequency alternating current is converted into direct current through a high-frequency uncontrolled rectifier bridge, and the direct current is inverted into alternating-current square waves through half-bridge inverter; the power-conversion main circuit is connected with the resonant main circuit, and the resonant main circuit converts the alternating-current square waves into sine waves with a constant resonant frequency; and the resonant main circuit is connected with the transmitter circuit, and the transmitter circuit transmits required electromagnetic waves with a transmission frequency and a waveform. The resonant dual-power-supply aircraft electromagnetic transmission device reduces the capacity, hoisting weight and size of a hoisting alternating-current generator by utilizing a parallel power supply manner.

The invention provides a multi-input multi-output power system for a rotary wing aircraft and a control method of the multi-input multi-output power system. The multi-input multi-output power system comprises a rotary wing, a propeller for providing forward flying power, a main power source for providing power for the propeller in a fixed wing flight mode phase of the rotary wing aircraft, an auxiliary power source for providing power for the rotary wing together with the main power source in a vertical take-off and landing phase of the rotary wing aircraft, a front transmission mechanism fromthe main power source to the propeller, and a main transmission mechanism from the main power source and the auxiliary power source to the rotary wing. According to the invention, a plurality of power sources, such as a fuel engine and a motor, are adopted; the power of the power sources is converged and split through a speed change device of the power system; the power is redistributed through different control strategies according to different flight phases of the rotary wing aircraft, so that a comprehensive power system with requirements of multi-input power converging and splitting and multi-output realized by control distribution is formed; and the power system not only can meet a high-power requirement of the rotary wing mode, but also can work in an optimal economic state in the fixed wing mode.