Power source residual capacity measuring apparatus and power source apparatus having power source capacity measuring circuit

摘要

According to the invention, there is provided a power source residual capacity measuring apparatus comprising: a circuit for measuring a residual capacity of a power source in accordance with a terminal voltage of the power source; a circuit for detecting a current flowing in a load connected to the power source; and a circuit for correcting the residual capacity of the power source which was measured by the measuring circuit in accordance with the current detection value and characteristics of the power source.