Battery monitoring system, semiconductor circuit, line-breakage detection program, and line-breakage detection method
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United States of America Patent
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Jan 2, 2018
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app pub date -
Jun 11, 2014
filing date -
Jun 14, 2013
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Abstract
The present invention appropriately detects line-breakages in a signal line related to a battery connected to a discharge circuit for discharging. Namely, an initialization operation produces a state in which a capacitor (C1) is charged with the difference between the voltage of a signal line (Vn) and a self-threshold voltage (Vx), and a capacitor (C2) is charged with the difference between the voltage of a signal line (Vn−1) and a self-threshold voltage (Vx), in a comparison circuit (26). In a comparison operation, a voltage adjusting section (ILn+1) produces a state in which line-breakage detection current is drawn out from a signal line (Ln), a signal line (Lc) is connected to the capacitors (C1, C2) and a voltage (DVn) is input to the capacitors (C1, C2). When an output OUT=L level, it is detected that there is no line-breakage, and when the output OUT=H level, it is detected that there is a line-breakage.
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