摘要:
A primary winding T1 and a switching circuit 1 are serially inserted between input terminals Ti1 and Ti2 to which an alternating current is supplied. A diode 2, a resistor 3, and a capacitor 4 are serially inserted in parallel with the primary winding T1. A detecting circuit 5 is connected to both ends of the capacitor 4 and to an emitter and a collector of a phototransistor 7b. A control circuit 6 controls the switching circuit 1. A diode bridge 8 and a capacitor 9 are provided for a secondary winding T2. Output terminals To1 and To2 are connected to both ends of the capacitor 9. A voltage detecting circuit 10 is provided in parallel with the capacitor 9. The voltage detecting circuit 10 detects voltages which are outputted from the output terminals To1 and To2 and supplies the detected voltages to a control circuit 11. The control circuit 11 controls a light emitting diode 7a.
摘要:
When a secondary battery such as a lithium ion battery, etc. requiring constant-voltage charging is charged, the battery voltage and charging current of the secondary battery are detected under a specified state, and in accord with the detected state, a voltage at which charging is carried out, the charging time or charging stop period thereof, or connecting condition of the charging circuit etc. are controlled in order to favorably charge the secondary battery to a full-charge or to a nearly full-charged state, thereby effectively preventing deterioration of characteristics of the secondary battery.
摘要:
A process for preparing a porous metallic body comprising the steps of: rendering a porous resin body electrically conductive, electroplating the conductive resin, and heating the electroplated resin to remove the resin, wherein the step of rendering the resin electrically conductive is conducted by coating the resin with a coating composition containing amorphous carbon particles as a conductive material. In the process, substantially spherical carbon particles may be used as the conductive material. The substantially spherical carbon particles are still preferably amorphous carbon. The thus obtained porous metallic body has reduced defect and more smooth skeleton in the porous body, is less likely to cause stress concentration upon application of bending and tensile force, has lower carbon content, and superior mechanical strength, and, therefore, the substrate is suitable as an electrode substrate for batteries.
摘要:
A sensor unit of an optical probe includes an illuminating device having an illuminating point arranged on the central portion of a detective surface facing a to-be-measured object, and eight light receiving devices arranged on the x and y axes in the detective surface, for receiving a reflected light from the object, four light receiving points among those of the eight light receiving devices being symmetrically arranged on the x axis with respect to the illuminating point and the remaining four light receiving points thereof being symmetrically arranged on the y axis with respect to the illuminating point. The rotation angle .theta. of the unit normal vector around the x axis and the rotation angle .phi. thereof around the y axis in the detective surface are calculated by processing the amounts of light received by the eight light receiving devices of the sensor unit.
摘要:
A packaged semiconductor device having heat transfer leads carrying a semiconductor chip directly or indirectly through a chip pad and extended to the exterior of the plastic or ceramics seal of the package, and a heat transfer cap held in surface contact with the extended heat transfer leads and covering upper side of the package. The heat generated in the semiconductor chip is transmitted to the upper side of the package and to the printed circuit board only through metallic parts so that the heat transfer is enhanced to remarkably reduce thermal resistance, thus enabling packaging of a semiconductor chip having a large heat generation rate.
摘要:
A solid-state imaging device has a configuration for selecting from a plurality of reference pixels at least one reference pixel for outputting a reference signal.
摘要:
An imaging system includes an A/D converter including a holding unit holding a pixel signal as a voltage level, a comparator comparing the voltage level held with a reference level, a circuit capable of changing the voltage level so as to approach the reference level at first and second rates, wherein the voltage level is changed at the first rate to determine higher bits in accordance with inversion of a relationship between the reference level and the voltage level, after that, the voltage level is changed at the second rate to determine lower bits in accordance with inversion of the relationship between the reference level and the voltage level, and an adjusting unit which adjusts the voltage level during a period until the voltage level is changed at the second rate after determination of the higher bits so that the lower bits and the voltage level hold a linear relationship.
摘要:
In a solid-state imaging device, a photoelectric conversion unit, a transfer transistor, and at least a part of electric charge holding unit, among pixel constituent elements, are disposed on a first semiconductor substrate. An amplifying transistor, a signal processing circuit other than a reset transistor, and a plurality of common output lines, to which signals are read out from a plurality of pixels, are disposed on a second semiconductor substrate.
摘要:
The present invention relates to a solid-state image pickup device. The device includes a first substrate including a photoelectric conversion element and a transfer gate electrode configured to transfer charge from the photoelectric conversion element, a second substrate having a peripheral circuit portion including a circuit configured to read a signal based charge generated in the photoelectric conversion element, the first and second substrates being laminated. The device further includes a multilayer interconnect structure, disposed on the first substrate, including an aluminum interconnect and a multilayer interconnect structure, disposed on the second substrate, including a copper interconnect.
摘要:
A constant current source has a first current source circuit for outputting a first current; a second current source circuit for outputting a second current according to a reference voltage; a current comparison circuit for comparing magnitudes of the first and second currents; and a current adjustment unit for adjusting a current value of the first current output from the first current source circuit in accordance with a comparison result of the current comparison circuit.