摘要:
A circuit arrangement for different color light emission, comprises first series circuit of a first light-emitting element having a given color, a diode, and a resistor; and a second series circuit of a second light-emitting element having another color and a collector-emitter path of a transistor, where the transistor is responsive to an input control signal so as to change a current flowing therethrough. The first and second series circuits are connected in parallel and are interposed between two terminals of a power source. The impedance of the first series circuit is selected to be much greater than that of the second series circuit when the transistor is conductive. When the voltage of the input control signal is below a predetermined level, the transistor is kept nonconductive so that only the first light-emitting element is energized. As the voltage of the input control signal exceeds the predetermined level, a current start flowing through the transistor to cause both the first and second light-emitting elements to emit light. As the voltage further rises, only the second light-emitting element is energized. The different color light from the two light-emitting elements may be mixed to produce third color light.
摘要:
A humidity sensor as well as a humidity detection circuit are disclosed, the former employing a humidity sensitive material the electric resistance of which varies in response to the variance of humidity in an atmosphere and the latter employing such humidity sensitive material. The humidity sensor comprises a base plate made of aluminum or the like with a humidity sensitive material formed on the base plate so as to form a film of a high molecular polymer unit which contains a reactive cationic monomer unit, is capable of detecting humidity over a wide range shows little variance in nature in a high humidity atmosphere of organic gas, and has a long life. The humidity detection circuit comprises an oscillation circuit, a pair of electrodes which are connected by means of the humidity sensor and to one of which is supplied the output of the oscillation circuit as an input, and an amplifier circuit which is connected to the other one of the pair of electrodes. The humidity detection circuit is advantageous in that it can be used for a long period of time without varying the characteristics thereof.
摘要:
An oil separator capable of preventing breakage in a float with an extremely simple configuration is provided. An oil separator is to separate oil in a refrigerant that is discharged from a compressor and return the oil to the compressor. The oil separator includes: a tank, into which a refrigerant discharged from the compressor flows; a float having a hollow therein that is held vertically movably in the tank, the float moving up and down with a change of an oil level in the tank; and a needle valve to return oil in the tank to the compressor in accordance with up/down movement of the float. The float includes an equalizing tube having a lower end that opens at a bottom part in the float and an upper end that opens outside of the float and above the oil level in the tank.
摘要:
A refrigerating apparatus includes first and second refrigerant circuits including respective first and second compressors, condensers, pressure reducers, and evaporators, connected circularly with first and second refrigerant pipes, respectively, refrigerants discharged from the first and second compressors being respectively condensed at the first and second condensers and thereafter respectively evaporated at the first and second evaporators to acquire a cooling effect; a temperature sensor that detects a temperature of an internal portion of a cold storage cabinet, the first and second evaporators being disposed to cool the internal portion simultaneously; and a first control device that controls the first and second compressors such that both of them are operated each time a temperature detected by the temperature sensor reaches a first temperature, and the first and second compressors are alternately operated each time a temperature detected by the temperature sensor reaches a second temperature lower than the first temperature.
摘要:
A character input prediction apparatus includes: an operation input unit that obtains information of a character input operation by a user using a character key layout display which includes character keys; a dictionary storage unit that stores a dictionary including candidate character strings; an indication movement detection unit that detects an indication position and an indication direction respectively showing a position and a movement direction of the character input operation in the character key layout display, from the information of the character input operation; a filter generation unit that determines a character range located in the indication direction with the indication position as a base point, in the character key layout display; and a dictionary search unit that searches the dictionary for a predictive character string including any character included in the character range.
摘要:
A fuel cell system includes at least: a hydrogen generator (4) which is supplied with a raw material to generate a fuel gas containing hydrogen; a humidifier (5) which is supplied with the fuel gas, generated in the hydrogen generator, to humidify the fuel gas by utilizing heat energy and an off gas supplied thereto; and a fuel cell (8) which is supplied with the fuel gas humidified in the humidifier and an oxidizing gas to generate electric power while discharging the heat energy and the off gas, and further includes a condenser (6) which cools down steam of the off gas, discharged from the fuel cell, by heat exchange with a cooling medium to convert the steam into condensed water, and supplies the condensed water to the humidifier to humidify the fuel cell. With this, the present invention provides a durable, reliable, and cheap fuel cell system capable of adequately and surely humidifying the fuel gas supplied to a polymer electrolyte fuel cell by a simple configuration using the humidifier without disposing a particular exclusive auxiliary device.
摘要:
A designing apparatus includes an initial estimating portion, a general power supply noise analyzing portion, a layout designing portion, a detail estimating portion, a detail power supply noise analyzing portion, and a layout adjusting portion. The initial estimating portion estimates general values of an entire consumed current and an entire on-chip capacitance. Based on the estimated general values, the general power supply noise analyzing portion creates a lumped constant circuit model so as to conduct a power supply noise analysis, for computing a current-capacitance ratio. Based on the current-capacitance ratio, the layout designing portion performs placement of cells for each of predetermined regions obtained by dividing a placement region. The detail estimating portion creates a lumped constant circuit model for each of the predetermined regions so as to estimate detail values of the consumed current and the on-chip capacitance for each of the predetermined regions. Based on the detail values, the detail power supply noise analyzing portion conducts a detail power supply noise analysis. Based on a result of the detail power supply noise analysis, the layout adjusting portion performs adjustment of the placement of the cells.
摘要:
An ESD analysis method and computer program product are disclosed. A circuit simulation is executed of design data of a semiconductor integrated circuit including a first power supply pad, a second power supply pad and a plurality of current paths between the first power supply pad and the second power supply pad, to calculate potentials in the plurality of current paths, when one of an ESD current and an ESD voltage is applied between the first power supply pad and the second power supply pad. An ESD tolerance is checked by calculating a potential difference between a first node coupled to the first power supply pad and a second node coupled to the second power supply pad, based on the calculated potentials. The first node and the second node are determined as nodes to be coupled to a border cell upon the potential difference being lower than a predetermined value.
摘要:
In a needle electrode device with a temperature sensor, having a hollow outer needle (1), which can be pierced into an affected area and is coated with an insulating layer (11) on an outer peripheral surface except at its distal end, and an inner needle (2), which is passed through the outer needle and has the temperature sensor (21) at its distal end, so that a high frequency current is supplied to the outer needle through the inner needle, and having a coupled tube (3) coupled to the rear end of the outer needle, so that the rear end (22) of the inner needle is inserted into the coupled tube in such a way as to be freely adjustable in its position in an axial direction, the position adjustment of the inner needle is provided with a simple operation. The coupled tube (3) is provided inside with a spring member (32) including a winding portion (32a) around the outer circumference of the rear end (22) of the inner needle (2) and a fixed portion (32b) fixed to the coupled tube (3). Moreover, the rear end (22) of the inner needle (2) can be moved in the axial direction by rotating the rear end (22) of the inner needle (2) in the opposite direction to a winding direction of the winding portion (32a).
摘要:
An ESD (Electrostatic Discharge) analysis device includes: a circuit simulation unit; a border cell extraction unit; and a check unit. The circuit simulation unit executes a circuit simulation of design data of a semiconductor integrated circuit including a plurality of circuits of a plurality of power supply systems, to calculate potentials in a plurality of current paths between pads of different two of the plurality of power supply systems, when one of an ESD current and an ESD voltage is applied between the pads. The border cell extraction unit extracts border cells from circuits of the different two of the plurality of power supply systems, wherein the circuits are included in the plurality of circuits, the border cells input and/or output signals between the circuits. The check unit checks an ESD tolerance by calculating a potential difference between the border cells, based on the calculated potentials, the extracted border cells.