VOLTAGE MEASUREMENT

摘要

Apparatus comprises a charging terminal for connection to a source of charging current; a battery terminal for connection to a battery; a first resistive element; a second resistive element; a switch having a single pole and first and second throws; and a voltage measurement circuit having first and second inputs. The first throw of the switch is coupled to a node between the battery terminal and the second resistive element. The second throw of the switch is coupled to a node between the charging terminal and the first resistive element. The first resistive element is coupled between the charging terminal and the second resistive element. The second resistive element is coupled between the battery terminal and the first resistive element. The pole of the switch is coupled to a first input of the voltage measurement circuit.