Stand-by power supply with AC-DC power input

Abstract

The invention discloses a standby power supplier for ac / dc power input. Wherein, connecting dc / dc power supplier of a dc power and ac / ac power supplier of an ac power in series to power control board to make the standby supplier output continually dc power to electronic device for normal running.

Description

technical field [0001] The present invention relates to a backup power supply with AC and DC power input, in particular to a backup power supply that connects different power sources in parallel as input power, so that when any power source is abnormal, it can still continuously output DC power to electronic devices for normal operation. Power Supplier. Background technique [0002] The quality of the power supply has always been the main factor to maintain the stable operation and quality of the computer system, especially in the face of the increasing advancement of technology, the relative requirements of electronic devices (such as hard disks, central processing units, recorders, etc.) It is getting higher and higher, but due to the instability of the input power quality, the overall output power quality of the power supply is gradually declining, especially if the input power supply has a power interruption problem, the computer system will immediately stop working and ...

AI Technical Summary

Problems solved by technology

[0004] If the backup power supply currently on the market is composed of multiple AC / DC power supplies connected to the AC power supply, although one of the power supplies stops abnormally, the remaining power supplies can maintain power output, but if the input If the AC power supply of the electric power is interrupted, even if all the power supplies are normal, all the power supplies will stop operating and terminate the power supply because there is no power input. When the external AC power supply is interrupted, it starts to provide input power, but for electronic devices, the response rate to maintain continuous power operation is quite short. That is to say, the computer system must be restarted to restart the electronic device, which still causes troubles for users

[0005] If the backup power supply is composed of multiple DC / DC power supplies connected to the DC power supply, since the DC power supply is composed of multiple DC batteries, compared with the AC power supply, the user can estimate the usage time of the DC power supply by himself and replace it regularly The fully charged DC power supply, however, because the rechargeable battery will gradually lose its actual usable power after repeated charging and discharging, which will cause users to misjudge the real usable power and time of the DC power supply, and not replace it in time In addition, the available power of the rechargeable battery is limited. If a large number of computer systems are to be continuously used, not only the power cost is quite high for the user, but also the cost of preparing rechargeable batteries is quite high. considerable

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