VOLTAGE MEASURING APPARATUS OF ASSEMBLED BATTERY
First Claim
1. A voltage measuring apparatus for measuring an output voltage of an assembled battery in which a plurality of unit cells are connected in series and are divided into a plurality of blocks, the voltage measuring apparatus comprising:
- a block voltage detection unit which detects a voltage of at least one of the plurality of blocks;
a sampling voltage generation unit which is provided in the block voltage detection unit and generates an analog sampling voltage applied in the sampling voltage generation unit;
an A/D conversion unit which is provided in the block voltage detection unit and digitizes the analog sampling voltage to output a digital sampling voltage; and
a voltage variation detection unit which obtains an error ratio of the voltage detected by the block voltage detection unit based on the digital sampling voltage.
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Accused Products
Abstract
A voltage measuring apparatus for measuring an output voltage of an assembled battery in which a plurality of unit cells are connected in series and are divided into a plurality of blocks is provided. The voltage measuring apparatus includes: a block voltage detection unit which detects a voltage of at least one of the plurality of blocks; a sampling voltage generation unit which is provided in the block voltage detection unit and generates an analog sampling voltage applied in the sampling voltage generation unit; an A/D conversion unit which is provided in the block voltage detection unit and digitizes the analog sampling voltage to output a digital sampling voltage; and a voltage variation detection unit which obtains an error ratio of the voltage detected by the block voltage detection unit based on the digital sampling voltage.
15 Citations
11 Claims
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1. A voltage measuring apparatus for measuring an output voltage of an assembled battery in which a plurality of unit cells are connected in series and are divided into a plurality of blocks, the voltage measuring apparatus comprising:
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a block voltage detection unit which detects a voltage of at least one of the plurality of blocks; a sampling voltage generation unit which is provided in the block voltage detection unit and generates an analog sampling voltage applied in the sampling voltage generation unit; an A/D conversion unit which is provided in the block voltage detection unit and digitizes the analog sampling voltage to output a digital sampling voltage; and a voltage variation detection unit which obtains an error ratio of the voltage detected by the block voltage detection unit based on the digital sampling voltage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification