Uninterruptable power supply battery on-line detection device

Abstract

The invention provides an uninterruptable power supply battery on-line detection device, which is characterized in that the device comprises a device for detecting battery voltage and internal resistance and having the following structures: a power supply bypass change-over switch, a power supply loop switching device, an MCU, a PWM voltage regulation circuit, an A / D converter, a signal acquisition circuit and a display device. The power supply bypass change-over switch and the power supply loop switching device are connected in parallel, and the tail end thereof is connected with a load; the signal acquisition circuit comprises a charging voltage acquisition circuit and a charging current acquisition circuit; an uninterruptable power supply signal collected by the signal acquisition circuit is output to the MCU for processing through the A / D converter to obtain ratio between the battery existing electric quantity and battery maximum capacity, and the ratio is sent to the display device for displaying; the output end of the MCU is electrically connected with the PWM voltage regulation circuit; and the output voltage of the uninterruptable power supply is adjusted according to an uninterruptable power supply temperature signal collected by an uninterruptable power supply temperature acquisition circuit.

Description

Technical field

[0001] The invention relates to an online detection device for an uninterruptible power supply battery. Background technique

[0002] Uninterruptible power supply is a necessary configuration for many computer rooms. The existing uninterruptible power supplies mostly use batteries as the power supply during startup. However, due to the low utilization rate of uninterruptible power supplies, the battery storage capacity will decrease during long-term standby. , Loss of power and other issues. Therefore, providing an online monitoring device for uninterruptible power supply batteries has become a problem to be solved in the prior art Summary of the invention

[0003] The present invention provides an uninterruptible power supply battery online detection device, which is characterized in that the device includes a device for detecting battery voltage internal resistance with the following structure: a power supply bypass switch, a power supply loop switching device, ...