摘要:
In a chargeable-and-dischargeable power supply system, a plurality of battery cell sections (C1, C2, - - - , Cn) are connected in series with one another, a plurality of cell state detecting sections (CC1, CC2, - - - , CCn) are installed for the respective battery cell sections and configured to detect a charge state in the respectively corresponding battery cell sections, a power control section (BC) is configured to carry out a power supply control for the battery cell sections, a first electrical isolation section (IF1) is installed in a first signal route from the power control section to one of the cell state detecting sections which is for a highest potential positioned battery cell section, and a second electrical isolation section (IF2) is installed in a second signal route from one of the cell state detecting sections which is for a lowest potential positioned battery cell section to the power control section.
摘要:
The present invention provides a small-sized electrostatic condenser type pressure sensor having high assembly accuracy but no dispersion in a detection accuracy, and a method for manufacturing the pressure sensor. An annular spacer is mounted on the confronting faces of substrates around flat electrodes, and a frit is mounted around the spacer and is made of a material having a lower softening or melting point than that of the spacer.
摘要:
A plasma display device including a plasma display panel that performs gradation display of an image by a sub-field method. A protective layer of the plasma display panel includes a base layer formed on a dielectric layer and a plurality of aggregated particles dispersed all over a surface of the base layer. The plasma display device forms an image by a right-eye field in which a right-eye image signal is displayed and a left-eye field in which a left-eye image signal is displayed. The right-eye field and the left-eye field have a plurality of sub-fields. In a predetermined gradation or higher, gradation is displayed by at least one or more sub-fields excluding a sub-field arranged in an end of each of the right-eye field and the left-eye field,
摘要:
A voltage detection device that is connected to a DC circuit to which a DC voltage is applied and that detects the DC voltage applied to the DC circuit comprises a voltage conversion means for outputting a first voltage that increases as the DC voltage increases and a second voltage that decreases as the DC voltage increases, an error detection means for detecting an error for the first voltage and the second voltage based upon the first voltage and the second voltage when the DC voltage is 0, and a voltage calculation means for correcting a difference between the first voltage and the second voltage outputted by the voltage conversion means based upon the error detected by the error detection means and calculating the DC voltage based upon the corrected difference between the first voltage and the second voltage.
摘要:
A remaining-capacity dispersion detecting apparatus for a battery pack having a plurality of cells includes a total voltage sensing section adapted to sense a total voltage which is a terminal voltage of the whole of battery pack; a storing section adapted to store a value of the total voltage when the battery pack becomes under unloaded condition from loaded condition; and a dispersion detecting section. The dispersion detecting section is adapted to detect a value of the total voltage at a time of activation before the battery pack becomes under the loaded condition from the unloaded condition, to compare the currently-detected total voltage value with the total voltage value previously stored by the storing section, and to detect a dispersion in respective remaining capacities of the plurality of cells in the case where a difference between the currently-detected total voltage value and the previously-stored total voltage value is greater than or equal to a predetermined value.
摘要:
An aggregated particle paste containing aggregated particles, each composed of a plurality of aggregated crystal particles made of magnesium oxide, and a solvent is prepared. A crystal particle paste containing crystal particles having a cubic shape, made of magnesium oxide, and a solvent is prepared. Thereafter, by mixing the aggregated particle paste and the crystal particle paste with each other, a mixed crystal particle paste is prepared. Then, by applying the mixed crystal particle paste to the base layer, a mixed crystal particle paste film is formed thereon. Thereafter, by drying the mixed crystal particle paste film, the aggregated particles and crystal particles are dispersed over the entire surface of the base layer.
摘要:
A PDP is provided with a front plate and a rear plate. The front plate has a protective layer. The protective layer includes a base layer, a plurality of first particles and a plurality of second particles. The first particles are aggregated particles obtained by aggregating a plurality of crystal particles made of magnesium oxide and having a cathode luminescence peak in a wavelength region from 200 nm or more to 300 nm or less. The second particles are crystal particles made of magnesium oxide, which have a cathode luminescence peak in a wavelength region from 400 nm or more to 450 nm or less, but do not have a cathode luminescence peak in the wavelength region from 200 nm or more to 300 nm or less.
摘要:
A voltage detection device that is connected to a DC circuit to which a DC voltage is applied and that detects the DC voltage applied to the DC circuit includes a voltage conversion unit for outputting a first voltage that increases as the DC voltage increases and a second voltage that decreases as the DC voltage increases, an error detection unit for detecting an error for the first voltage and the second voltage based upon the first voltage and the second voltage when the DC voltage is 0, and a voltage calculation unit for correcting a difference between the first voltage and the second voltage based upon the error detected by the error detection unit and calculating the DC voltage based upon the corrected difference between the first voltage and the second voltage.
摘要:
A voltage detection device that is connected to a DC circuit to which a DC voltage is applied and that detects the DC voltage applied to the DC circuit comprises a voltage conversion means for outputting a first voltage that increases as the DC voltage increases and a second voltage that decreases as the DC voltage increases, a voltage calculation means for inputting the first voltage and the second voltage outputted from the voltage conversion means and calculating the DC voltage based upon a difference between the inputted first voltage and the inputted second voltage, and a first failure judgment means for judging that failure has occurred if at least one of the first voltage and the second voltage is not inputted to the voltage calculation means.
摘要:
A remaining-capacity dispersion detecting apparatus for a battery pack having a plurality of cells includes a total voltage sensing section adapted to sense a total voltage which is a terminal voltage of the whole of battery pack; a storing section adapted to store a value of the total voltage when the battery pack becomes under unloaded condition from loaded condition; and a dispersion detecting section. The dispersion detecting section is adapted to detect a value of the total voltage at a time of activation before the battery pack becomes under the loaded condition from the unloaded condition, to compare the currently-detected total voltage value with the total voltage value previously stored by the storing section, and to detect a dispersion in respective remaining capacities of the plurality of cells in the case where a difference between the currently-detected total voltage value and the previously-stored total voltage value is greater than or equal to a predetermined value.