UNINTERRUPTIBLE POWER SUPPLY SYSTEM INSTALLED IN INSIDE OF VEHICLE

摘要

PURPOSE: An uninterruptible power supply system installed in an inside of a vehicle is provided to stop stably a computer and an applicable device by using a battery of the vehicle without using an additional backup battery. CONSTITUTION: A power input portion(1) is installed to receive electric power from a battery mounted in a vehicle. The power input portion(1) includes a main input terminal, a switch input terminal, and an earth terminal. The main input terminal is directly connected to the battery of the vehicle. The switch input terminal is connected to a predetermined switch for controlling the electric power of the inside of the vehicle. A power output portion(5) supplies the electric power to each terminal of the vehicle and outputs a predetermined control signal. A power conversion portion coverts the electric power of the battery. A power break recognition circuit portion(2) checks a supplying state of the electric power and transmits an output signal to a signal control portion(3). The signal control portion(3) generates control signals according to the received signals. A power cutoff delay circuit portion(4) supplies the main electric power of the battery to each terminal.