Patent ID: 6094363
Filing Date: 2000-07-25
Classification: H02J,H02M

Abstract:
An interruptible power supply for providing uninterruptible power when utility power is abnormal, said uninterruptible power supply comprising:a battery set for providing a DC voltage;a DC/DC converter comprising;a DC/DC voltage conditioner for boosting and converting said DC voltage to a boosted and full-wave rectified shaped DC voltage; anda DC/DC controller for generating pulse width modulation (PWM) signals to control said DC/DC voltage conditioner in response to a feedback signal indicative of said boosted and full-wave rectified shaped DC voltage and a full-wave rectified shaped DC reference signal;an inverter for converting said full-wave rectified shaped DC voltage to a sine wave AC voltage;a microcontroller for generating said full-wave rectified shaped DC reference signal to said DC/DC controller and for controlling said inverter;a relay for selectively outputting said utility power and said uninterruptible power; andan energy recycle charger for charging said battery set by said utility power and for recycling redundant energy of said uninterruptible power to said battery set, said energy recycle charger being controlled by said feedback signal indicative of said boosted and full-wave rectified shaped DC voltage, said full-wave rectified shaped DC reference signal and said PWM signals.