Uninterruptible power supply with AC sine wave output and energy

Details Uninterruptible power supply with AC sine wave output and energy Uninterruptible power supply with AC sine wave output and energy

1998-12-21

2000-07-25

Han, Jessica

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

363 41, 307 64, H02M 3335

Patent

active

060943637

ABSTRACT:
An uninterruptible power supply with sine wave AC output and energy recycle function is disclosed. The uninterruptible power supply makes use of a DC/DC converter to boost and convert the DC voltage of a battery set to a full-wave rectified shaped DC voltage. A microcontroller is provided to generate a full-wave rectified shaped DC reference signal to force the DC/DC converter to follow the reference signal for adjusting its output to a full-wave rectified shaped DC voltage. The full-wave rectified shaped DC voltage is converted by an inverter to a sine wave AC voltage for providing uninterruptible power. An energy recycle charger is further provided to recycle redundant energy to the battery set.

REFERENCES:
patent: 5241217 (1993-08-01), Severinsky
patent: 5625539 (1997-04-01), Nakata et al.

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