Abstract: This disclosure provides a power cabinet. The power cabinet includes M modules, N plug-in components, and N locking apparatuses. The M modules are sequentially stacked from top to bottom. The N plug-in components are configured to lead out a power line and/or a signal line. A pth module and a (p+1)th module are electrically connected by using a pth plug-in component, the pth module and the (p+1)th module are connected by using a pth locking apparatus, M, N, and p are all integers, M?3, N=M?1, 1?p?M?1, at least one of the M modules is a battery management module, and remaining modules of the M modules are battery modules.

Abstract: This disclosure provides a power cabinet. The power cabinet includes M modules, N hot swappable components, and N locking apparatuses. The M modules are sequentially stacked from top to bottom. The N hot swappable components are configured to lead out a power line and/or a signal line. A pth module and a (p+1)th module are electrically connected by using a pth hot swappable component, the pth module and the (p+1)th module are connected by using a pth locking apparatus, M, N, and p are all integers, M?3, N=M?1, 1?p?M?1, at least one of the M modules is a battery management module, and remaining modules of the M modules are battery modules.

Abstract: The present invention discloses a reversal connection protecting circuit. The reversal connection protecting circuit includes a power supply interface, a secondary battery, a reversal connection driving unit and a power switching unit. The reversal connection protecting circuit further includes an anti-reversal unit. And the reversal connection protecting circuit further includes a processing unit and a warning interface. According to the present invention, the inconvenience brought by substituting a fuse that is melted in a protecting circuit under the condition that the power supply of the protecting circuit is reversely connected in prior art is overcome.

Abstract: The present invention provides a battery array voltage equalization device comprising: a sampling unit which samples the battery voltage signals of the battery array according to a sampling control signal; an analog-to-digital converting unit which converts the sampled voltage signals into a digital voltage signal; a control unit which generates the sampling control signal and a driving signal based on the digital voltage signal; an equalization unit which equalizes the voltage signals of the battery array based on the driving signal; a filter unit which is connected to the equalization unit and the battery array. The present invention applies the filter unit to filter out the ripple signal generated during equalization.

Abstract: The present invention provides a circuit for controlling the operation of a backup power supply, wherein the circuit comprises a switch unit, a control unit, and a processing unit; wherein the switch unit is configured to be operably coupled to an external power supply; wherein a first input terminal is configured to be operably coupled to a backup power supply, a second input terminal is configured to be operably coupled to the switch unit, the third and fourth output terminals of the control unit are configured to be operably coupled to an input terminal of the processing unit; the fifth and sixth input terminals of the control unit are configured to be operably coupled to a respective output terminal of the processing unit; and the control unit is configured to turn on and off the backup power supply.

Abstract: The present invention discloses a reversal connection protecting circuit. The reversal connection protecting circuit includes a power supply interface, a secondary battery, a reversal connection driving unit and a power switching unit. The reversal connection protecting circuit further includes an anti-reversal unit. And the reversal connection protecting circuit further includes a processing unit and a warning interface. According to the present invention, the inconvenience brought by substituting a fuse that is melted in a protecting circuit under the condition that the power supply of the protecting circuit is reversely connected in prior art is overcome.

Abstract: The present invention provides a circuit for controlling the operation of a backup power supply, wherein the circuit comprises a switch unit, a control unit, and a processing unit; wherein the switch unit is configured to be operably coupled to an external power supply; wherein a first input terminal is configured to be operably coupled to a backup power supply, a second input terminal is configured to be operably coupled to the switch unit, the third and fourth output terminals of the control unit are configured to be operably coupled to an input terminal of the processing unit; the fifth and sixth input terminals of the control unit are configured to be operably coupled to a respective output terminal of the processing unit; and the control unit is configured to turn on and off the backup power supply.

Abstract: The present invention provides a battery array voltage equalization device comprising: a sampling unit which samples the battery voltage signals of the battery array according to a sampling control signal; an analog-to-digital converting unit which converts the sampled voltage signals into a digital voltage signal; a control unit which generates the sampling control signal and a driving signal based on the digital voltage signal; an equalization unit which equalizes the voltage signals of the battery array based on the driving signal; a filter unit which is connected to the equalization unit and the battery array. The present invention applies the filter unit to filter out the ripple signal generated during equalization.