CHARGER FOR BLOCKING STANDBY POWER AND METHOD OF CONTROLLING SAME

摘要

The present invention discloses a charger (10) for blocking power when charging a battery (21). The charger includes a charging voltage generating unit (15) that generates a charging voltage for charging a battery. The charger comprises: a control unit (12) that includes at least one microprocessor for controlling calculation, comparison and determination required for charging; a back-flow preventing unit (11) that is arranged between the charging voltage generating unit (15) and the battery (21), includes a plurality of diodes (D1, D2 and D3), and prevents the voltage of the battery (21) and a charging voltage (Vd) from flowing backward to the charger (10); a driving unit (13) that is connected between the control unit (12) and an AC power supply unit and includes a relay (K1) for supplying/blocking AC power to the charger according to the control of the control unit; an alarm unit for informing of a contact failure or charging completion when charging the battery (21); and a cable connector (16) for connecting to a target device (20). The charger enables power to be completely blocked automatically even if the power plug of the charger is not separated from the outlet after charging is completed or the battery is separated from the target device.

主权项

1. A charger for blocking standby power in charging a battery (21), the charger comprising:
a charging voltage generating unit (15) that generates a charging voltage for charging the battery (21) by supplying predetermined AC power; a control unit (12) that includes at least one microprocessor for controlling calculation, comparison and determination required for the charging operation of the charger (10); a back-flow preventing unit (11) that is positioned between the charging voltage generating unit (15) and the battery (21), includes a plurality of diodes (D1, D2 and D3), and prevents the voltage of the battery (21) and a charging voltage (Vd) from flowing backward to the charger (10); a driving unit (13) that is connected between the control unit (12) and a AC power supply unit, and includes at least one relay (K1) for supplying/blocking the AC power to the charging voltage generating unit (15) according to the control of the control unit; an alarm unit that informs of a contact failure or charging completion when charging the battery (21); and a cable connector (16) that connects a target device (20) accepting the battery (21) with the charger when charging.