Voltage detection device and power supply system using same
OwnerNaohisa Morimotoinventor
Life of this patent
Estimating the term…
Abstract
A voltage detection device has: a differential voltage detection circuit, which detects a potential difference across a pair of input terminals; a multiplexer which selects two electrode terminals among electrode terminals of a plurality of series-connected battery modules, and has a sampling switch for respectively connecting the two selected electrode terminals to first and second wiring lines; a flying capacitor circuit, which acquires a voltage across the first and second wiring lines, and outputs the voltage to the pair of input terminals; and a signal generator, which applies common-mode noise to the flying capacitor circuit.
Claims12
A voltage detection device, comprising:
- a differential voltage detection circuit, which detects a potential difference across a pair of input terminals;
- a multiplexer which selects two electrode terminals among electrode terminals of a plurality of series-connected battery modules, and has a sampling switch for respectively connecting the two selected electrode terminals to first and second wiring lines;
- a flying capacitor circuit, which acquires a voltage across the first and second wiring lines, and outputs the voltage to the pair of input terminals;
- and
- a signal generator, which applies common-mode noise to the flying capacitor circuit.
Dependencies are inferred from the claim text.