Uninterruptible power supply

An uninterruptible power supply comprising:

• a power supply unit for generating DC power at a predetermined voltage from AC power supplied from the outside to supply the DC power to an electronic device;
• and
• a rechargeable battery unit including rechargeable battery cells for storing the power supplied thereto from said power supply unit for supplying said electronic device with the power stored in said rechargeable battery upon service interruption of said AC power,
• wherein said rechargeable battery unit comprises:
• a battery state monitoring unit for monitoring a state of said rechargeable battery cells;
• and
• communicating means for notifying said electronic device of information indicative of the state of said rechargeable battery detected by said battery state monitoring unit, and
• wherein said power supply unit comprises:
• a first invertor for converting the AC power supplied from the outside to AC power for driving a primary winding of an insulating transformer;
• a DC voltage stabilizer circuit for retrieving power from a secondary winding of said insulating transformer to generate a predetermined DC stabilized voltage;
• a charging unit for retrieving power from a ternary winding of said insulating transformer for use in charging said rechargeable battery cells;
• and
• a second invertor for DC/AC converting the power supplied from said rechargeable battery cells for driving said ternary winding.

An uninterruptible power supply comprising:

• a power supply unit for generating DC power at a predetermined voltage from AC power supplied from the outside to supply the DC power to an electronic device;
• and
• a rechargeable battery unit including rechargeable battery cells for storing the power supplied thereto from said power supply unit for supplying said electronic device with the power stored in said rechargeable battery upon service interruption of said AC power,
• wherein said rechargeable battery unit comprises:
• a battery state monitoring unit for monitoring a state of said rechargeable battery cells;
• communicating means for notifying said electronic device of information indicative of the state of said rechargeable battery detected by said battery state monitoring unit;
• performance determining means for determining backup performance of said rechargeable battery cells for said electronic device in accordance with a battery temperature of said rechargeable battery cells and the power consumption by said electronic device;
• and
• result outputting means for outputting the result of determination.

An uninterruptible power supply comprising:

• a power supply unit for generating DC power at a predetermined voltage from AC power supplied from the outside to supply the DC power to an electronic device;
• and
• a rechargeable battery unit including rechargeable battery cells for storing the power supplied thereto from said power supply unit for supplying said electronic device with the power stored in said rechargeable battery upon service interruption of said AC power, wherein said rechargeable battery unit comprises:
• a battery state monitoring unit for monitoring a state of said rechargeable battery cells;
• communicating means for notifying said electronic device of information indicative of the state of said rechargeable battery detected by said battery state monitoring unit;
• charge energy detecting means for detecting a charge energy of said rechargeable battery cells;
• charging/discharging detecting means for detecting a charging/discharging state of said rechargeable battery cells;
• failure detecting means for detecting a failure of said rechargeable battery cells and/or said power supply unit;
• charge energy display means for displaying the charge energy of said rechargeable battery cells detected by said charge energy detecting means in multiple stages;
• charging/discharging display means for displaying the charging/discharging state of said rechargeable battery cells detected by said charging/discharging detecting means;
• and
• alarming means for informing a failure detected by said failure detecting means.

An uninterruptible power supply comprising:

• a power supply unit for generating DC power at a predetermined voltage from AC power supplied from the outside to supply the DC power to an electronic device;
• and
• a rechargeable battery unit including rechargeable battery cells for storing the power supplied thereto from said power supply unit for supplying said electronic device with the power stored in said rechargeable battery upon service interruption of said AC power,
• wherein said rechargeable battery unit comprises:
• a battery state monitoring unit for monitoring a state of said rechargeable battery cells;
• communicating means for notifying said electronic device of information indicative of the state of said rechargeable battery detected by said battery state monitoring unit;
• a cooling fan for cooling down said rechargeable battery cells;
• and
• a fan controller for controlling the operation of said cooling fan,
• wherein said fan controller detects the temperature of said rechargeable battery to operate said cooling fan.

An uninterruptible power supply comprising:

• a power supply unit for generating DC power at a predetermined voltage from AC power supplied from the outside to supply the DC power to an electronic device;
• and
• a rechargeable battery unit including rechargeable battery cells for storing the power supplied thereto from said power supply unit for supplying said electronic device with the power stored in said rechargeable battery upon service interruption of said AC power,
• wherein said rechargeable battery unit comprises:
• a battery state monitoring unit for monitoring a state of said rechargeable battery cells;
• communicating means for notifying said electronic device of information indicative of the state of said rechargeable battery detected by said battery state monitoring unit;
• a cooling fan for cooling down said rechargeable battery cells;
• and
• a fan controller for controlling the operation of said cooling fan,
• wherein said fan controller comprises a function for forcedly disabling said cooling fan to operate when said rechargeable battery cells are being charged.