Patent attributes
A modular uninterruptible power supply (UPS) provides modular uninterruptible power support to multiple rack computer systems. The modular UPS can include one or more rectifier, battery, and inverter modules installed in one or more rack frames. The modules can be installed in a common rack frame and electrically coupled via a bus bar coupled to the frame. The modules can be installed in separate rack frames and electrically coupled via a bus bar extending between the separate rack frames. The modular UPS can include multiple sets of rectifier modules and battery modules which are electrically coupled to the rack computer systems in parallel and can provide uninterruptible power support subsequent to at least one module failure. The rectifier, battery, and inverter modules installed in the rack frames can be adjusted to provide scalable power support based at least in part upon the power support requirements of the rack computer systems.