Voltage measurement circuit

A voltage measurement circuit for use in measuring a voltage of each of a plurality of battery cells connected in series and included in a cell pack, the voltage measurement circuit comprising:

• a first switched capacitor filter including an input terminal connected to a first battery cell among the plurality of battery cells included in the cell pack;
• a second switched capacitor filter including an input terminal connected to the first battery cell or a second battery cell among the plurality of battery cells included in the cell pack;
• and
• a first amplifier including an input terminal connected to an output terminal of the first switched capacitor filter and an output terminal of the second switched capacitor filter, wherein
• the first switched capacitor filter includes:
• a first switch group including an input terminal connected to the first battery cell;
• and
• a first capacitor connected to an output terminal of the first switch group,
• the second switched capacitor filter includes:
• a second switch group including an input terminal connected to the first battery cell or the second battery cell;
• and
• a second capacitor connected to an output terminal of the second switch group, and
• the first switch group is electrically isolated from the first amplifier via the first capacitor, and the second switch group is electrically isolated from the first amplifier via the second capacitor.