摘要:
A control apparatus of a synchronous motor having armature windings and perpendicular field windings comprises a frequency converter of a cycloconverter which converts the frequency of an alternating current and supplies the converted current to the armature windings of the synchronous motor. On a shaft of the synchronous motor are installed a speed detector, a position detector, and a speed instruction circuit. The frequency converter is controlled in accordance with the outputs of the speed detector, the position detector and the speed instruction circuit. An alternating current excites the field windings, so that a field of magnetic force is rotationally generated. The direction of the magnetic field is determined depending upon the output of the speed detector.
摘要:
An electronic apparatus includes circuitry to receive a request for generating electronic data from an information processing apparatus via a first communication network, generate the electronic data, receive storage destination information designating a storage destination of the electronic data from the information processing apparatus via the first communication network, and transmit the generated electronic data to the storage destination via a second communication network, different from the first communication network, based on the storage destination information received from the information processing apparatus.
摘要:
A lithium ion secondary battery in which a winding type electrode group including a positive electrode having a positive electrode mix layer containing a lithium metal oxide, a negative electrode having a negative mix layer that stores and discharges lithium ions, and separators arranged on inner and outer peripheries of the positive electrode and the negative electrode is housed, and a nonaqueous electrolyte is poured, within a battery container, the positive electrode has one side edge along a longitudinal direction thereof exposed as a positive electrode mix unprocessed portion, and a positive electrode mix layer coated in the other area on both surfaces of a metal foil made of an aluminum alloy.
摘要:
In accordance with an embodiment, an image forming apparatus comprises a display unit, a display unit, a control unit and an image forming unit. The display unit displays a preview of the image of an object to be printed. The input unit accepts the designation of an area from user for the preview image displayed on the display unit. The control unit divides the area of the image of the object to be printed such that takes the area in the designated area as an area to be printed or a non-print area, the other area as a non-print area or an area to be printed. The mage forming unit forms the image of the object to be printed on a sheet in accordance with the division by the control unit.
摘要:
A method for depositing a thin film for a magnetic recording medium includes the steps of placing a substrate for a recording medium having a magnetic recording layer thereon on a substrate holder rotatably arranged within a film deposition chamber; and supplying a plasma beam from a plasma beam formation portion to the film deposition chamber so as to form a thin film of ta-C on the magnetic recording layer. In supplying the plasma beam, an inclination angle formed by a normal line to a surface of the magnetic recording layer and a plane orthogonal to a direction of incidence of the plasma beam is changed from a minimum inclination angle to a maximum inclination angle according to an increase in film thickness of the ta-C thin film.
摘要:
An upper base portion of a top portion of a battery cell cap functions as a positive terminal, and paths for flow of electrical current are defined between the top portion and portions for welding. The portions for welding are positioned to face a side wall region between a pair of apertures adjacently provided in the top portion, and the current flowing regions are defined between the portions for welding and the side wall regions of the top portion facing to the portions for welding, each forming a symmetrical current flowing region.
摘要:
According to an embodiment, an automatic document feeder includes a supply tray, a transport path, a plurality of flappers, a plurality of discharge trays, and an erasing unit. The plurality of flappers divides a sheet which is transported from the supply tray toward the plurality of transport destinations. The plurality of discharge trays receives the sheet which is divided and transported in the transport path. The erasing unit is provided between the supply tray and the predetermined reading position in the transport path, and erases color of an image which is formed on a transported sheet using a decolorable colorant.
摘要:
A level shifting circuit, satisfying a requirement of a high tolerated dV/dt level, and a highly reliable inverter circuit, wherein a set pulse signal and a reset pulse signal, both of which are level-shifted to a potential side taking as reference a reference potential of a gate control terminal of a switching terminal, are obtained differentially and integrated, and, in case these pulse signals equal or exceed stipulated integrated values, are transmitted as regular control signals controlling the on/off state.
摘要:
A fuel filling port structure of a fuel tank is provided in which a lid housed in the port structure is biased towards a closed position when a fuel supply nozzle is not inserted, and moved to an open position when the fuel supply nozzle is inserted. Lid locking mechanisms are disposed in the port structure which lock the lid in the closed position or unlock the lid so as to be movable to the open position corresponding to the insertion of the fuel supply nozzle.
摘要:
A semiconductor package has a substrate made of WCu, WAg, MoCu or MoAg. A plurality of leads are fixed to the substrate by hermetic sealing without an intervening nickel plating layer. A cover is bonded to the substrate with a seal ring which is directly bonded to the substrate by brazing without an intervening nickel plating layer. The leads are nickel plated and gold plated after hermetic sealing, and the seal ring is nickel plated and gold plated after brazing. Even though the substrate is made of a metal alloy, this arrangement provides the package with a high degree of air tightness.