Abstract: The present invention provides a control system in which an energy-saving brushless micro-kinetic energy generating device is connected in parallel with a mains power supply device. The control system detects the actual power consumption of the load end, so that the control system of the invention can drive the switch according to the power consumption of the load end. An energy-saving brushless micro-kinetic energy generator or a mains power supply device is selected for power supply, so that users can achieve the effect of energy saving.

Abstract: A projection apparatus, a power management apparatus, and a method for power management thereof are provided. The projection apparatus has a first power socket corresponding to a first power specification and a second power socket corresponding to a second power specification. The second power specification is different from the first power specification. A voltage detection unit is adapted to detect an input voltage received by a powered power socket, wherein the powered power socket is the first power socket or the second power socket. A control unit decides whether the input voltage detected by the voltage detection unit is matched up with the power specification of the corresponding powered power socket to determine an operation mode of the projection apparatus and to determine whether the projection apparatus provides an alarm message to ensure safety of use.

Abstract: A projection apparatus, a power management apparatus, and a method for power management thereof are provided. The projection apparatus has a first power socket corresponding to a first power specification and a second power socket corresponding to a second power specification. The second power specification is different from the first power specification. A voltage detection unit is adapted to detect an input voltage received by a powered power socket, wherein the powered power socket is the first power socket or the second power socket. A control unit decides whether the input voltage detected by the voltage detection unit is matched up with the power specification of the corresponding powered power socket to determine an operation mode of the projection apparatus and to determine whether the projection apparatus provides an alarm message to ensure safety of use.

Abstract: A Bluetooth mobile phone includes a first module and a second module detachable from the first module. When the first and second modules are separated, signals are wirelessly transmitted between the first and second modules in a Bluetooth mode. When combining the first and second modules, a connection interface of the first module is coupled to a connection interface of the second module, such that signals are substantially transmitted through the two interfaces.