74results about How to "Improve electronic efficiency" patented technology

The invention provides an electron blocking layer structure of a photoelectric device. The electron blocking layer structure is characterized in that structure matching between a quantum well and a P layer is achieved through adjusting a lattice structure and a band gap as much as possible; meanwhile, the formation of a polarized electric field is reduced, the formation of a negative charge area in an electron blocking layer is weakened as much as possible, and further the efficiency is improved; the electron leakage caused by energy band bending of the electron blocking layer and the increment of hole potential energy of the P layer are weakened. The electron blocking layer structure of the photoelectric device adopts AlInGaN or AlInGaN/InGaN super-lattice structure growth, wherein the In component is less than or equal to 10 percent; the Al component is less than or equal to 40 percent; the gradual distribution of the In component and the Al component exists in the electron blocking layer, and gradual change principles of the In component and the Al component are mutually independent; as for the electron blocking layer with an AlInGaN/InGaN super-lattice structure, the gradual change of the In component occurs in a super-lattice AlInGaN or a super-lattice AlInGaN/InGaN or in both the super-lattice AlInGaN and the super-lattice AlInGaN/InGaN.

An electronic ballast is capable of realizing high frequency lighting of a discharge lamp and switching between at least two lighting modes with different light outputs. The ballast includes a preheating circuit having a winding component connected in parallel with a main resonant circuit with a lamp current flowing therein for the discharge lamp. A constant preheating current for the lamp filaments is supplied from a secondary winding of the winding component during lighting of the discharge lamp and a path of a current flowing on a primary winding side of the winding component is switched by a switch according to the lighting mode.

The invention discloses an angular-clamping biradial electron beam angle logarithmic plane zigzag slow-wave line slow-wave structure, and relates to the field of radial beam traveling-wave tube systems. The structure comprises a metal cavity, an angle logarithmic metal plane zigzag slow-wave line, an upper ideal cathode, a lower ideal cathode, a first medium supporting rod, and a second medium supporting rod. The structure solves a problem of an ineffective angle logarithmic micro-strip slow-wave structure in a working process of a radial beam traveling-wave tube, which is caused by a condition that a defocused electron beam is liable to bombard a logarithmic micro-strip and causes the fusion of the logarithmic micro-strip.

The invention discloses a helix traveling wave tube dynamic phase velocity gradually-changed thread pitch distribution structure and a design method. A helix is divided into an input helix body and an output helix body, the input helix body is separated from the output helix body through a cutting-off device, and concentrated attenuators are arranged on the two sides of the cutting-off device and used for restraining reflection of electromagnetic waves. The output helix body is divided into three sections, a thread pitch groove is additionally formed in front of the gradually-changed thread pitch section z3 of the output helix body, the thread pitch groove is mainly determined through three structure parameters including the groove depth h, the groove width L and the distance d between the groove and the gradually-changed thread pitch section z3, and the dynamic phase velocity gradually-changed thread pitch distribution structure with the groove is formed. According to the helix traveling wave tube dynamic phase velocity gradually-changed thread pitch distribution structure and the design method, the electronic efficiency of a helix traveling wave tube is improved through the dynamic phase velocity gradually-changed structure, and meanwhile the aim of restraining high harmonic components of output signals is achieved through the groove.

A heat-dispersing module of an electronic device is disclosed. The heat-dispersing module includes: a housing having a top surface, a bottom surface, a first side surface and a second side surface, wherein the first side surface is opposite to the second side surface; a heat-dispersing fan mounted on the first side surface of the housing; a first vent area disposed on the second side surface of the housing; a second vent area disposed on the top surface of the housing; and a printed circuit board positioned in the housing, thereby a first airflow channel is formed between the top surface of the housing and the printed circuit board and a second airflow channel is formed between the bottom surface of the housing and the printed circuit board, wherein the printed circuit board produces a relatively higher heat at the second airflow channel than the first airflow channel and a distance of the second airflow channel from the printed circuit board to the bottom surface is relatively larger than that of the first airflow channel from the printed circuit board to the top surface.

A cathode header optic for an x-ray tube includes an elongate trench with opposite trench walls. A cup recess is formed in the trench between the opposite trench walls, and has a bounded perimeter. A cathode element is disposed in the trench at the cup recess. The cathode element is capable of heating and releasing electrons. A secondary cathode optic defining a cathode ring can be disposed about the header optic. The cathode optics can form part of an x-ray tube.

An image processing apparatus comprises: a character information acquisition unit configured to acquire character information included in each of a body region and a caption region; an accumulation unit configured to divide the character information acquired from the body region into predetermined set units and to accumulate the character information and position information of the divided set unit in a memory; an anchor term extraction unit configured to extract an anchor term from the character information acquired from the caption region; an anchor term search unit configured to search, based on the character information accumulated in the memory for each set unit, for the set unit including the anchor term extracted; a link information generation unit configured to generate link generation information that associates the set unit found by the anchor term search unit with the object region to which the caption region including the anchor term is appended.

The embodiments of the present invention provide a method and a keyboard for inputting Chinese characters and electronic apparatus containing the keyboard, wherein the method is applicable to Chinese characters input on a keyboard. The keyboard includes an initial consonant inputting region and a compound vowel inputting region, the initial consonant inputting region including multiple initial consonant keys, with each of the initial consonant keys indicating at least one initial consonant, and the compound vowel inputting region including multiple compound vowel keys, with each of the compound vowel keys indicating at least one compound vowel. The method for inputting Chinese characters including the steps of: acquiring corresponding initial consonant and compound vowel(s) or acquiring corresponding compound vowel and displaying the Chinese character consistent with the combination of the initial consonant and compound vowel(s) or the Chinese character consistent with the compound vowel in accordance with a predefined rule.

An ideal filament preheat technique in flourescence lamp is supplied by an adjusting circuit, an output circuit and a control circuit. At the filament preheating stage, an adequate preheating voltage is provided for the filament of the lamp tube, and the voltage cross over both ends of the lamp tube is reduced, thereby preventing glow current in preheating. When the preheating stage is finished and starting stage begins, the voltage between both ends of the lamp tube increases simultaneously, and then reaches a break-down voltage of the lamp tube, then the lamp tube is lit to enter a normal operation stage, the preheating voltage of the filament is cutoff under the control circuit, so as to save the filament power consumption. Therefore, the efficiency of the electronic ballast is improved, and the operation life of the flourescent lamp tube is extended.

The present application discloses an integrated circuit comprising a circuit portion (100) coupled between first and second power supply lines (110; 120); a first switch (115, 135) coupled between the first power supply line (110, 120) and the circuit portion (100) for disconnecting the circuit portion from the first power supply line during an inactive mode of the circuit portion; and an arrangement (315, 335, 410) for, during said inactive mode, providing the circuit portion (100) with a fraction of its active mode power supply at least when averaged over said inactive mode to prevent the circuit portion voltage to drop below a threshold value. The present application further discloses a method for controlling such an integrated circuit.

A multi-lamp electronic ballast for a high intensity discharge lamp is provided. The multi-lamp electronic ballast includes a first igniter connected to the inverter unit to induce a high voltage from a current input from the inverter unit and to apply the high voltage to the first lamp and a second igniter having the one side end connected to the inverter unit and the other side end connected in parallel to a second lamp.

A pad mechanism includes a step fixing structure having a plurality of step platforms. A height difference is formed between the two step platforms. A first engaging portion is formed on each step platform. The pad mechanism further includes a pad component having a pad body, a sleeve and a constraining portion. A second engaging portion is formed on the pad body for selectively engaging with the corresponding first engaging portion so as to adjust a height of the pad body protruding from the step fixing structure. The pad mechanism further includes a resilient component sheathing with the sleeve for driving the sleeve, and a constraining component installed on a side of the resilient component and connected to the constraining portion so as to prevent the resilient component from separating from the sleeve.

An electronic module, and method for making same, includes free-formed, self-supported interconnect pillars that electrically connect cover electronic components disposed on a cover substrate with base electronic components disposed on a base substrate. The free-formed, self-supported interconnect pillars may extend vertically in a straight path between the cover electronic components and the base electronic components. The free-formed, self-supported interconnect pillars may be formed from an electrically conductive filament provided by an additive manufacturing process. By free-forming the self-supported interconnect pillars directly on the electronic components, the flexibility of electronic module design may be enhanced, while reducing the complexity and cost to manufacture such electronic modules.