| 摘要 |
PURPOSE: A circuit for preventing the expansion of fire is provided to sense the initial fire generated from a certain element in advance to turn off the power of a system. CONSTITUTION: A circuit for preventing the expansion of fire includes a conduit(2) formed around heating elements such as a flyback transformer(FBT), conductive lines a deflection IC resistor, a condenser, diodes mounted to a PCB(1) of a system in a predetermined patterns, and a microcomputer(3) connected to the conduit for forming a closed loop circuit and determining short of the conduits to block the power supply of the system. The conduit is formed with session parts(4) at corresponding parts of the heating elements with a smaller thickness, wherein the session parts are formed of Sn of which melting degree is relatively lower than that of the conduit.
|
