130 results about "Drain efficiency" patented technology

Gallium nitride material transistors and methods associated with the same are provided. The transistors may be used in power applications by amplifying an input signal to produce an output signal having increased power. The transistors may be designed to transmit the majority of the output signal within a specific transmission channel (defined in terms of frequency), while minimizing transmission in adjacent channels. This ability gives the transistors excellent linearity which results in high signal quality and limits errors in transmitted data. The transistors may be designed to achieve low ACPR values (a measure of excellent linearity), while still operating at high drain efficiencies and / or high output powers. Such properties enable the transistors to be used in RF power applications including third generation (3G) power applications based on W-CDMA modulation.

A field-effect transistor (FET) in which a gate electrode is located between a source electrode formed on one side of the gate electrode and a drain electrode formed on the other side, a source ohmic contact is formed under the source electrode and a drain ohmic contact is formed under the drain electrode. In the FET, the rise in the channel temperature is suppressed, the parasitic capacitance with a substrate is decreased, and the temperature dependence of drain efficiency is reduced, so that highly efficient operation can be achieved at high temperatures. The drain electrode is divided into a plurality of drain sub-electrodes spaced from each other and an insulating region is formed between the drain ohmic contacts formed under the drain sub-electrodes.

A device is delineated for removing body fluid from a wound site. The device may include a drain sealed within the wound site, a conduit connected to the drain and a fluid container connected to the other end of the conduit. The fluid container may include at least one inlet passage of larger diameter to reduce likelihood of clogging during body-fluid inflow. An additional inlet passage may be included. The fluid container may also include at least one outlet passage of larger diameter to improve draining efficiency.

Gallium nitride material devices and methods associated with the same. In some embodiments, the devices may be transistors which include a conductive structure connected to a source electrode. The conductive structure may form a source field plate which can be formed over a dielectric material and can extend in the direction of the gate electrode of the transistor. The source field plate may reduce the electrical field (e.g., peak electrical field and / or integrated electrical field) in the region of the device between the gate electrode and the drain electrode which can lead to a number of advantages including reduced gate-drain feedback capacitance, reduced surface electron concentration, increased breakdown voltage, and improved device reliability. These advantages enable the gallium nitride material transistors to operate at high drain efficiencies and / or high output powers. The devices can be used in RF power applications, amongst others.

The invention discloses an automobile accessory oil-immersion immersing and draining device comprising an immersing tank and a storing net frame. Two vertical spiral shafts are arranged inside the immersing tank, and sliding sleeves which are connected with the spiral shafts in a threaded-fit mode are arranged on the spiral shafts; a rotating sleeve which is rotatably connected with the outer sidewall of the storing net frame is arranged on the outer side wall of the storing net frame; the outer side wall of the rotating wall is connected with the outer side walls of the sliding sleeves to befixed; a top plate is arranged between the upper ends of the two spiral shafts; rotating shaft sleeves which are rotatably connected with the top ends of the spiral shafts are arranged at the top ends of the spiral shafts; a vertically downward rotating casing is arranged on the top plate, and the upper end of the rotating casing is connected with a rotating motor arranged on the top plate; a fixing connecting rod is arranged in the rotating casing; and the bottom end of the fixing connecting rod is connected with a fixed base arranged on the bottom wall of the storing net frame to be fixed.The automobile accessory oil-immersion immersing and draining device is simple in structure, automobile accessories are separated from and enter oil liquid conveniently, the draining efficiency is high, the structure is stable, operation is easy and convenient, and practicability is high.

The invention relates to a novel draining and filtering device. The device comprises a cylindrical shell, the left upper part and right bottom of the cylindrical shell are respectively provided with a water inlet and a water outlet, a first separation plate and a second separation plate are respectively inserted into the cylindrical shell, the first separation plate and the second separation plate are connected through a connection rod, the first separation plate is provided with a pull rod, the top of the cylindrical shell is provided with a positioning plate, the positioning plate is provided with a positioning hole, the pull rod is provided with multiple pull rod holes from up to bottom, the second separation plate is uniformly provided with multiple water feeding holes, a first filter net is arranged below the second separation plate, the left side of the cylindrical shell located above and below the water inlet is respectively provided with a first cleaning hole and a second cleaning hole, the right side of the cylindrical shell is provided with a bar-shaped hole, a second filter net covers the bar-shaped hole and the bar-shaped hole is provided with a draining chamber communicated with the water outlet. The novel draining and filtering device can remove impurities in continuous draining and filtering processes so that draining efficiency is greatly improved.