| 摘要 |
PURPOSE: To provide a storage amount measuring circuit device for a storage battery. CONSTITUTION: A storage battery 100 which comprises a battery or a primary battery which can be changed, a control switch 101 which has a function to a correctly control and measure a load 102, and a detection signal enlarging/processing circuit 103 wherein the measurement signals at both ends of the load 102 are enlarged and compared with each other, and then converted into analog or digital signals for outputting, are provided. In addition, a constant voltage circuit which, in normal condition, accumulates electricity in a capacitor C101 through a unilateral diode CR101 and supplies an electric power for use continuously to a display circuit 104 when, at a moment of measurement, a storage battery receives a large load to lower voltage, the display circuit 104 which, in contrast to a measurement signal, displays and outputs in continuous analogue or stepwise analogue, a line characteristics correction circuit COM101 which provides correction of line characteristics display of relatively accurate measurement, and a current limiting unit 105 which, upon request, selects installation of a capacitor, an electric sensor, or a current limiting unit having resistance property and contains two or more of the three current limiting characteristics, are provided. |
