Uninterruption power supply capable of providing sine wave output AC voltage

Abstract

The invention discloses a power source supplier which provides sine wave alternating current and can not power off, it is used to provide sine wave alternating current. Thereinto direct current-direct current converter unit includes several direct current-direct current converters, several inputs of said direct current-direct current converters are parallel connected with each other, and several outputs of the direct current-direct current converters are connected in series. The output direct currents are added to form direct current voltage of full wave commutation; the direct voltage of thefull wave commutation is converted into the sine wave to output the alternating voltage. Besides, the power source supplier in the invention can provide energy reclaiming converter to reclaim redundant energy to charge the battery group. The invention can provide sine wave output alternating voltage in simplified circuitry and optimizer power efficiency when commercial power is abnormal or interrupted.

Description

Uninterruptible power supply capable of providing sine wave output AC voltage technical field The invention relates to an uninterruptible power supply, in particular to an uninterruptible power supply capable of providing sine wave output AC voltage. Background technique With the rapid development of the information industry and the rapid expansion of the high-tech industry, an uninterruptible power supply (UPS) has become an emergency power supply device for a large number of electronic devices. Most precision electronic instruments and communication equipment need to rely on high-quality power supply to maintain normal operation. At present, uninterruptible power supplies have become an optimal solution to ensure the best power supply quality in the event of a power outage. FIG. 1 shows a partial system block diagram of a conventional uninterruptible power supply, which illustrates the operation of the conventional uninterruptible power supply when the mains power is a...

AI Technical Summary

Problems solved by technology

However, in order for the UPS to output a sine wave AC voltage, the UPS requires a complex circuit design, which results in an increase in the cost of the UPS

At the same time, complex circuit design will also increase the power loss of the UPS

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