| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a voltage detection apparatus which prevent inversion of potential between a supply voltage and the uppermost voltage detection input terminal in a voltage detection integrated circuit with a simple configuration. <P>SOLUTION: The voltage detection apparatus 100 includes: a battery pack VM1; an integrated circuit U1 for independently detecting voltage of a battery module; and a plurality of voltage detection lines for connecting the battery module to the integrated circuit U1. Also, the voltage detection apparatus 100 includes a low-pass filter circuit comprising resistors and capacitors provided in the voltage detection lines. The voltage detection lines are connected to the integrated circuit U1 from the uppermost end and lowermost end of the battery pack VM1 without going through the resistors; at least one of the voltage detection lines is branched into two from the battery pack toward the integrated circuit U1; and each of the branched voltage detection lines is connected to the input terminal of the integrated circuit U1 via the low-pass filter. <P>COPYRIGHT: (C)2011,JPO&INPIT |
