Patent ID: 8988078
Filing Date: 2015-03-24
Classification: B60L,G01R,H01M,H02J,Y02E,Y02T

Abstract:
1. A voltage monitoring system to monitor a plurality of battery cells mutually coupled in series, comprising: a voltage monitoring module configured to operate on a voltage received from at least one battery cell among a plurality of battery cells and to monitor the battery cells; and a module control circuit configured to control the voltage monitoring module, wherein the voltage monitoring module includes: an adjusting current control circuit that generates an adjusting current in response to a first operating current setting command sent from the module control circuit so that an operating current consumed by the voltage monitoring module reaches a specified value corresponding to the first operating current setting command and stops generating of the adjusting current in response to an operating current switching command sent from the module control circuit; and an operating current measurement circuit that measures the operating current in response to an operating current measuring command sent following the operating current switching command, wherein the module control circuit sends a second operating current setting command based on the measured operating current, and wherein the adjusting current control circuit generates an adjusting current in response to the second operating current setting command so that the operating current reaches a specified value corresponding to the second operating current setting command.