| 摘要 |
<p>A charge circuit (1) is composed of a first circuit (1a) and a second circuit (1b). Said second circuit (1b) is provided at a battery pack (4) in which a secondary battery (41) is comprised. Said first circuit (1a) is provided at a charger (2) for charging said secondary battery (41). Said charge circuit comprises: an output power supply section (21, 23); a control section (3) configured to control said output power supply section (21, 23) to perform a charging operation; a memory (42) provided at said second circuit (1b) and storing a number of charging; and a threshold current setting section (5). Said control section (3) is configured to, in said charging operation, perform firstly a constant current charging operation, and then perform a constant voltage charging operation, and finish the charging operation when a charging current reaches a charge stop current value. Said threshold current setting section is configured to decrease said charge stop current value along with the increase of said number of charging.</p> |
