Patent ID: 6483684
Filing Date: 2002-11-19
Classification: B29C,B29K,G01R,G05F,H02H,H03L

Abstract:
A current limiting apparatus comprising:a power source signal output means for outputting a voltage signal to supply a power source to a sample to be measured; a signal amplifying means for amplifying the voltage signal outputted by the power source signal output means; a power source fluctuation absorption means for absorbing the fluctuation of the power source supplied to the sample to be measured by the voltage signal amplified by the signal amplifying means; an amplification factor setting means for setting a amplification factor in the signal amplifying means; a current detection means for detecting a current value to be inputted into the sample to be measured; a voltage calculation means for calculating the voltage at the current detection position, according to the current value detected by said current detection means; a voltage setting means for setting the predetermined voltage; a voltage comparing means for comparing the voltage value set by said voltage setting means to the voltage value calculated by said voltage calculation means; and an amplification factor changing means for changing the setting of the amplification factor of the amplification factor setting means, according to the comparison result of said voltage comparing means.