TW201324113A - Hot-pluggable uninterruptible power module - Google Patents

Abstract

This invention relates to a hot-pluggable uninterruptible power system, which is capable of providing uninterruptible power to an electronic system and includes a plurality of power supplies, in which at least one first power supply is electrically connected with an external AC power source and converts the external AC power into DC voltage for supplying the power to the electronic system; a battery electrically connected with a second power supply of the plurality of power supplies for supplying DC voltage to the second power supply; a control module having a battery power detection and management function and a power cut-off detection function, and is electrically connected with the first power supply and the second power supply respectively to control the charge and discharge of the battery. This invention, through hot-pluggable connection with power supplies of the external AC power, is capable of maintaining the normal system operation without interruption of power.

Description

Hot plug-in uninterruptible power module

The present invention relates to an uninterruptible power module, and more particularly to a hot-swappable uninterruptible power module capable of maintaining system power when a power supply that supports redundancy and is hot-swappable to connect an external AC power source.

Press, the general power supply for the server, in order to ensure that the system stability data is not lost, the system usually uses two or more power supplies, when one failure, the other can be used, but if the power is off Electricity or power jumps also depend on an uninterruptible power system (UPS) to maintain the system's normal operation, but the high-power uninterruptible power system is not only expensive, but also requires extra space for the uninterruptible power system. In addition, the battery used in the uninterruptible power system has a short life and needs frequent maintenance, and often causes trouble to the user.

Therefore, it is necessary to redesign this lack. In view of this, how to eliminate the above-mentioned defects is the technical difficulty point that the inventor of the case wants to solve; however, the inventor of this case is based on years of experience in designing related products. I feel that the inconvenience of the above-mentioned traditional products, after many years of painstaking research, trial and improvement, can finally eliminate the many shortcomings of the traditional UPS, successfully develop the case, and enable the invention to be born to enhance the efficacy.

In view of the above disadvantages, the present invention provides a hot plug type uninterruptible power module, including: a plurality of power supplies, wherein at least one first power supply is electrically connected to an external AC power source, and the external communication is The power source is converted into a DC voltage for supplying power to the electronic system; a battery is electrically connected to the second power supply of the plurality of power supplies to provide the second power supply DC voltage; A control module has a battery power detection management function and a power failure detection function, and is electrically connected to the first power supply and the second power supply, respectively, for controlling charging and discharging of the battery.

For example, the hot-swappable uninterruptible power module has a first power supply that can directly charge the battery by converting its DC output voltage.

For the hot plug type uninterruptible power module as described above, it is preferable that the battery is a lithium battery.

For the hot plug type uninterruptible power module as described above, it is preferable that the first power supply can maintain the normal operation of the system when the hot plug is hot swapped.

For the hot plug type uninterruptible power module as described above, it is preferable that the second power supply can maintain the normal operation of the system when the hot power is hot swapped.

For example, the control module is capable of viewing the hot plug status of the plurality of power supplies by current.

The main object of the present invention is to provide a hot-swappable uninterruptible power module that supports redundancy and maintains system power when hot-swappable to a power supply of an external AC power source.

A secondary object of the present invention is to provide a hot-swappable uninterruptible power module having a simple structure, a small size, and a low cost.

Another object of the present invention is to provide a hot-swappable uninterruptible power module having a long service life and a low failure rate.

The embodiments of the present invention are described below by way of specific embodiments, and those skilled in the art can readily understand other advantages and functions of the present invention from the disclosure of the present disclosure.

Referring to the first figure, the first figure is a block diagram of the present invention. As shown in the figure, the hot plug type uninterruptible power module 10 of the present invention can supply an electronic system 20 with uninterrupted power. The method includes: a plurality of power supplies, wherein at least one of the first power supplies 11 is electrically connected to the external AC power source 30, and converts the external AC power source 30 into a DC voltage for supplying power of the electronic system 20; The second power supply 12 is electrically connected to the second power supply 12 of the plurality of power supplies for providing a DC voltage of the second power supply 12; a control module 14 having a battery power detection management function and The power-off detection function is electrically connected to the first power supply 11 and the second power supply 12 to control charging and discharging of the battery.

Please refer to the second figure. The second figure is a flow chart of the charging mode of the present invention. As shown in the figure, the present invention first detects the power supply on or off signal, and then detects the power supply DC output when DC. When the output reaches the set level, the charging boost line is turned on. When the charging voltage reaches the set level, the step-down line is turned on and the battery is charged. At this time, the control module reads the battery data and reads it. When the battery is fully charged, the charging switch will be turned off to prevent the battery from overcharging. When the battery is self-discharged to only 85% of the capacity, the charging switch is turned on to maintain a certain capacity to ensure the discharge time.

Please refer to the third figure. The third figure is the flow chart of the discharge mode when the mains is cut off or jumped. As shown in the figure, when the mains is cut off or the power is lost, the mains power interruption signal (SMBalt_PF) is high. The level is turned to the low level. At this time, the boost line is turned off and enters the discharge mode. When the current is flowing out of the step-down line, the current detection hot plug signal (R_sense) changes from the high level to the low level, when the utility power returns. The mains power interruption signal is changed from the low level to the high level, and the current detection hot plug signal is changed from the low level to the high level. At this time, the boost line is turned on, and the charging mode is returned to charge the battery to facilitate the next discharge. .

Please refer to the fourth figure. The fourth figure is a flow chart of the discharge mode when the first power supply is hot-swapped according to the present invention. As shown in the figure, when the power supply connected to the external AC power supply is unplugged or damaged, The current detection hot plug signal (R_sense) is changed from the high level to the low level, and the mains power interruption signal (SMBalt_PF) is still at the high level. At this time, the boost line is turned off and enters the discharge mode, and when the external AC power is connected, When the supplier is plugged into the system, the mains power interruption signal is changed from the high level to the low level and then turned to the high level. The current detection hot plug signal is changed from the low level to the high level, and the boost line is turned on. Go back to charging mode.

Advantages of the invention:

1. The invention uses the battery as the backup power source, utilizes the DC output voltage of the power supply as the charging source, does not need additional AC to DC circuit, and is designed to be simpler than the traditional UPS, and the volume is also larger than the traditional UPS system. A lot smaller.

2. The invention has the functions of detecting external AC power failure and supporting redundant hot plugging. When the utility power is cut off or the power supply connected to the external AC power source is damaged or pulled out, the battery voltage can be converted into a system requirement in time. The voltage continues to supply the system, giving the system enough time to archive and back up data.

3. The invention has the advantages of small control module and battery, can be placed in the outer casing of the power supply, and supports redundant hot plugging function, so it can replace two (or more than two) external AC power supply. One of the power supplies reduces costs.

4. The invention uses a lithium battery and has a long life.

However, the specific embodiments described above are merely used to exemplify the features and functions of the present invention, and are not intended to limit the scope of the present invention, and may be applied without departing from the spirit and scope of the present invention. Equivalent changes and modifications made to the disclosure of the present invention are still covered by the scope of the following claims.

In summary, the present invention has achieved the desired effect under the prior art structure, and is not easily understood by those who are not familiar with the ordinary knowledge in the field; further, the invention has not been disclosed before the application. The progressive and practical nature of the invention has been consistent with the application requirements of the invention patent, and the invention application has been filed according to law.

10. . . Hot plug-in uninterruptible power module

11. . . First power supply

12. . . Second power supply

13. . . battery

14. . . Control module

20. . . electronic system

30. . . External AC power

The first figure is a block diagram of the present invention.

The second figure is a flow chart of the charging mode of the present invention.

The third figure is a flow chart of the discharge mode when the utility power is cut off or jumped.

The fourth figure is a flow chart of the discharge mode when the first power supply is hot plugged in the present invention.

10. . . Hot plug-in uninterruptible power module

11. . . First power supply

12. . . Second power supply

13. . . battery

14. . . Control module

20. . . electronic system

30. . . External AC power

Claims (6)

A hot-swappable uninterruptible power module capable of supplying an electronic system with uninterrupted power, comprising: a plurality of power supplies, wherein at least one of the first power supplies is electrically connected to an external AC power source, and The external AC power is converted into a DC voltage for supplying power of the electronic system; a battery is electrically connected to the second power supply of the plurality of power supplies to provide the second power supply a DC voltage; a control module having a battery power detection management function and a power failure detection function, and electrically connected to the first power supply and the second power supply, respectively, for controlling charging of the battery And discharge. The hot-swappable uninterruptible power module of claim 1, wherein the first power supply can directly charge the battery by converting its DC output voltage. The hot plug type uninterruptible power module according to claim 1, wherein the battery is a lithium battery. The hot-swappable uninterruptible power module of claim 1, wherein the first power supply can maintain the normal operation of the system when the hot power is hot swapped. The hot-swappable uninterruptible power module of claim 1, wherein the second power supply can maintain the normal operation of the system when the hot power is hot swapped. The hot swappable uninterruptible power module of claim 1, wherein the control module is capable of viewing the hot plug status of the plurality of power supplies by current.