Abstract: A power system for data center, which comprises: a critical electrical equipment, an alternating current (AC) transformer, an AC power distribution unit (PDU), a rectifier transformer, and a DC PDU. The critical electrical equipment is disposed in the data center. The AC transformer is utilized to receive a first high AC electrical power from a first power utility and transform it to a low AC electrical power, and the AC PDU receives the low AC electrical power and applies the low AC electrical power to the critical electrical equipment of the data center. Further, the rectifier transformer is utilized to receive a second high AC electrical power from a second power utility and transform and rectify it to a low direct current (DC) electrical power, and a DC PDU receives the low DC electrical power and applies the low DC electrical power to the critical electrical equipment.

Abstract: The present invention provides an improved dual-input power supply including a dual-input terminal, an input source selection controller, a load adjustment switch circuit, a power conversion circuit, an automatic switch circuit for power interruption, and an output terminal. The input source selection controller is adapted to select a mode for power inputting comprising AC power source in priority mode, DC power source in priority mode, and dual-power source supply (AC and DC power sources simultaneously supplying) mode. Therefore the present invention allows users to select flexibly power source input mode and maintains uninterruptible power supply by switching automatically the power source input mode upon accident power failure.

Abstract: A cloud credit card transaction system and the transaction method thereof are disclosed. The system comprises a client terminal, a cloud credit card service system and at least one shop. The client terminal includes a wireless communication device, and the cloud credit card service system has a cloud credit card transaction module. The transaction method of the present invention comprises that the cloud credit card transaction system is connected to the wireless communication device with wireless and employs the cloud credit card transaction module for authentication of the transaction between the client terminal and the shop. The shop is connected to the cloud credit card service system, and the client terminal can be coupled to the cloud credit card transaction module to transact with the shop by the wireless communication device.

Abstract: A networklized DC power system includes: a micro DC grid, and a plurality of energy routers connected to the micro DC grid. Each of energy routers includes a controlling module for controlling the energy router. A DC receiving port is coupled for receiving DC power from at least one DC power generating system. An AC receiving port is provided for receiving AC power from an AC power supplying system. A battery charging/discharging port is connected to a battery system for charging or discharging the battery system. A DC outputting port is provided for applying DC voltage to a load. A network interface port is coupled to the micro DC grid, and for receiving the power from the micro DC grid or for transferring power to the other energy routers of the micro DC grid.

Abstract: A shared power system includes a power router; a plurality of power input devices respectively connected to the power router; a first diode coupled between the power router and an output; a second diode coupled between a DC grid and the output; wherein the power router can provide power to the output by conducting the first diode when voltage of the power router is higher than the DC grid, and the DC grid can provide power to the output by conducting the second diode when voltage of the DC grid is higher than the power router. The power router can further determine the energy ratio between each power input device to achiever the energy-sharing.

Abstract: The present invention provides a cloud-based communication device, including a processor; a primary operating system implanted in the cloud-based communication device; a virtual operating system or program executed by the processor and generating display data, wherein the primary operating system is different from the virtual operating system or program, the display data instructing a smart mobile device to display a graphical user interface related to the operating system or the program of the smart mobile device simulated by the virtual operating system or program; a transmission module coupled to the processor to transmit the display data to the smart mobile device through a network; a receiving module coupled to the processor to receive the control signals transmitted from the smart mobile device though the network to control the graphical user interface of the virtual operating system or program.

Abstract: A green data center is provided, which comprises: a utility power source for providing utility power; a facility electrically connected to the utility power source; a renewable energy provider electrically connected to the facility for providing renewable energy; an IT equipment electrically connected to the renewable energy provider; wherein the total power received by the IT equipment is not less to the utility power provided by the utility power source, so that the PUE (Power Usage Efficiency) can be less than one, thereby achieving the effect of carbon-reducing and energy-saving.

Abstract: In one aspect, a cloud cube for providing energy efficient cloud computing is disclosed, which includes: an internal DC bus for transferring energy, clusters of computing servers coupled to the internal DC bus for performing cloud computing, at least one NAS storage coupled to the internal DC bus, at least one energy storage coupled to the internal DC bus, a plurality of energy sources coupled to the internal DC bus, and at least one energy manager coupled to the internal DC bus for performing energy management or energy routing. In another aspect, a system for providing energy efficient cloud computing is disclosed, which includes: a DC grid having a plurality of interconnected energy sources, and a plurality of cloud cubes connected by the DC grid such that energy can be routed and shared among the cloud cubes.